Stockham Iron Valves. Setting The Standard In Service

Transcription

1 Stockham Iron Valves Setting The Standard In Service

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3 Setting the Standard in Service The Stockham Pledge Stockham is committed to setting the standard in quality service to the Commercial Construction industry. Our pledge to our customers is: A friendly voice every time you call Quick response to your quotes and questions On-time delivery Accurate shipments

4 Iron Valves General Information...- Globe and Angle Valves Class...9-0, Class Class Gate Valves Class...-0,, - Class Class Swing Check Valves Class...-9, 7 Class Class Wafer Check Valves 00 CWP... Class... International Iron Valves Class...-7 Malleable Valves Globe... Gate...- Check... Stop Check Valves Y-Pattern... Angle Pattern... Technical Data...-0 IRON VALVES FIG. NO. PAGE F-... F-0... F-... F-... F-7... F G G--I... G G-7... G-0... G-... G--I... G G-0... Figure Number Index IRON VALVES FIG. NO PAGE G G--I... G G-7... G-7... G G G G-9-I... 7 G-9 L & W... G G WG-9... WG

5 Iron Valves Cross Reference RONZE For Commonly Used Valves GLOE Stockham NICO Milwaukee Class - T-- 0 Class 00 SS Trim -7 T-7AP 9A - T-7-7 GATE Class RS-Thread -00 T- Class NRS-Thread -0 T- 0 Class RS-Solder -0 S- 9 Class NRS-Solder -0 S- Class 0 Union onnet -0 T- Class 00 SS Trim - T-7-SS CHECK Class Thread -9Y T--Y 09 Class Solder -09Y S-- 09 Class 00 Swing Check -7 T T-- IRON GATE Stockham NICO Milwaukee Powell Walworth Class NRS G- F-9 F A 77 W79F Class OS&Y G- F-7-0 F A 79 W7F Class 0 OS&Y F-7 F-7-0 F9 A 797 W7F GLOE Class G- F-7- F9 A W90F SWING CHECK Class Flanged G-9 F-9- F97 A 9 W9F STOP CHECK Class 0 Straight-way Y-Pattern F Class 0 Angle Y-Pattern F- F

6 Iron Valves Stockham iron body valves are proven performers in mechanical systems of commercial buildings throughout America. Chemical plants, steel mills, shipyards, refineries, pulp and paper mills, and utilities have also found that Stockham iron body valves do the job better and longer for their many general services. QUALITY MANAGEMENT Stockham is committed to a philosophy of total quality management. It begins with design, to comply with pertinent MSS and ASME Standards. Continuous improvement are applied in a process to improve materials and services to meet or exceed customer needs. MATERIALS The iron used as the basic valve material conforms to the chemical and physical requirements of the American Society of Testing and Materials A- Class for Cast Iron Valves. RATED WORKING PRESSURES The pressure-temperature ratings of Stockham iron body valves in this catalog section are as follows: DESIGN: GATE VALVES-CLASSES and 0 Stem All stems are designed for ample strength and are machined to function easily. ackseats are provided on OS&Y valves. Packing Gland Assembly Glands and gland flanges have a ball and socket joint which assures alignment. It provides for proper packing compression without binding against the stem. Packing Non-Asbestos. Disc Strong, solid wedge discs have disc guides for precision seating with minimum friction against body seats. Yoke and onnet One-piece yoke bonnets are utilized on " and smaller size OS&Y valves. Larger sizes have separate yokes and bonnets. PRESSURE (PSIG) CLASS CLASS 0 TEMPERATURE CAST IRON CAST IRON F SIZES SIZES SIZES SIZES SIZES to Stuffing ox NRS valves have stuffing boxes assembled to bonnets to accommodate the packing gland assembly. Seat Ring uttress-type seat rings are bottom-seated with accurately machined faces to match disc faces. Handwheel or Operating Nut Handwheels have large diameters for good leverage. Operating nuts, " square may be furnished on any NRS valve if specified. The temperature shown for a corresponding pressure rating is the temperature of the pressure containing shell of the component. In general, this temperature is the same as that of the contained fluid. Composition disc valves are excluded from these ratings.

7 Iron Valves Yoke ushing Yoke bushings on OS&Y valves have Acme threads for stem engagement, and handwheels fit snugly over bushings. Handwheels are securely locked to yoke bushings with locknuts. olted yoke cap secures the yoke bushing to yoke. ody ody sections are evenly distributed for maximum strength. Dimensions and drilling of end flanges of cast iron valves conform to the ASME Standard. for Classes and 0 Cast Iron Flanges. Face-to-face dimensions comply with ASME Standard.0. DESIGN: GLOE AND ANGLE VALVES-OUTSIDE SCREW AND YOKE-CLASSES and 0 Stem Stems are machined with Acme threads which fully engage the yoke bushing threads at all times. Packing Gland Assembly Glands and gland flanges have a ball and socket joint which assures alignment and proper packing compression. Packing Non-Asbestos. ackseat ushing ushings are threaded into bonnets, providing beveled seats for backseating on stem shoulders. Disc ronze discs are furnished in Class and 0 globe and angle valves, which are regrindable. Disc nuts thread into disc. The Class 0 nonreturn stop-check valve conforms to ASME boiler codes and utilizes a dashpot and piston design to cushion the disc action. Yoke onnet One-piece yoke bonnets are fastened to bodies with capscrews. Seat Rings Seat rings are bottom seated and are readily renewable. Handwheel Handwheels have large diameters for ample leverage. Yoke ushing Accurate Acme threads engage stem threads. Set screws fasten yoke bushings to yoke. ody odies are designed with uniform sections evenly distributed for maximum strength. Dimensions and drilling of end flanges on flanged valves conform to the ASME Standard. for Classes and 0 Cast Iron Flanges. Face-to-face dimensions comply with the ASME Standard.0. DESIGN: SWING CHECK VALVES-CLASSES and 0 Cap Caps are bolted to bodies. Hinge Hinges are precisely drilled for assembly with discs. Hinge Pin Pins are located by side plugs screwed into bodies. Disc Disc faces are accurately machined for tight seal with seat rings. Seat Ring uttress design of renewable seat rings provides bottom seating and good strength. ody Dimensions and drilling of end flanges on flanged valves conform to ASME Standard. for Classes and 0 Cast Iron Flanges. Face-to-face dimensions comply with ASME.0. Figure G-9 L&W: "-" come standard with an adjustable lever arm which can be orientated in any position in increments. These valves can be installed in horizontal lines or in vertical lines with upward flow. "- " valves must be specified at the time of inquiry and order with the installation orientation for horizontal or vertical-upward flow. 7

8 Iron Valves ACCESSORIES Stockham iron body valves may be furnished with motor operators, gearings, bypasses, floorstands, extension stems, lever and weight attachment or other accessories. MARKING Numerals indicate the size and pressure class. Cast arrows indicate direction of flow on check, globe and angle valves. FINISH External cast iron parts are coated with a durable black finish. WEIGHTS AND DIMENSIONS Dimensions and weights shown in this catalog section are furnished for estimating purposes only and are subject to change without notice. It is our intent to maintain basic dimensional requirements of accepted standards. TESTING AND INSPECTION efore shipment, each valve is individually tested under pressure for soundness of castings and tight closure to MSS Standards. C V COEFFICIENTS* (For estimating purposes only) Size Gate Globe Swing Check 7 0 ½ *Fully open. C V PSI P, 0 F Water The above values for Swing Check Valves are correct only when the valve is fully open. This corresponds to a velocity of ft./sec. for water flow.

9 Iron Globe Valves Figure G- Class olted onnet OS&Y ronze Trim Flanged Ends ody Hi-Str. Cast Iron onnet Hi-Str. Cast Iron Disc (" - ") ronze (" - 0") Cast Iron ody Seat Ring ronze 7 Disc Seat Ring* (" & 0") ronze Stem Manganese ronze 9 Yoke ushing Manganese ronze Packing Non-Asbestos Rings Gland (" - ") rass (" - 0") ronze Gland Flange Ductile Handwheel Ductile 7 Disc Stem Ring ronze 0 Stem Hole ushing rass Locking Device (" - ") - SST Sheet Disc Guide Stem* (" & 0") rass Disc Guide Stem Pin* (" & 0") rass onnet Gasket Non-Asbestos Sheet onnet Studs Steel onnet Stud Nuts Steel 7 Gland Studs Naval rass Gland Stud Nuts rass 9 Handwheel Nut Steel - Phos. Coated 0 Identification Plate Aluminum * Not shown Industry Standards Complies with MSS SP- Type See page for Pressure Temperature Ratings C M Open Valve Dimensions Size C M () (0) (0) () (9) (0) () () (7) (9) () () (9) () (9) () () () (0) (7) (9) (0) () (0) () (0) (9) () (77) (7) () (9) 9

10 Figure G- Class olted onnet OS&Y ronze Trim Flanged End Iron Angle Valves ody Cast Iron onnet Cast Iron Disc ronze Seat Ring ronze Stem Manganese ronze 9 Yoke ushing Manganese ronze Packing Non-Asbestos Rings Gland (" - ") rass (") ronze Gland Flange Ductile Handwheel Ductile 7 Disc Stem Ring ronze 0 Stem Hole ushing rass Locking Device - Stainless Steel onnet Gasket Non-Asbestos Sheet onnet Studs Carbon Steel onnet Stud Nuts Carbon Steel 7 Gland Studs Naval rass Gland Stud Nuts rass 9 Handwheel Nut Carbon Steel 0 Identification Plate Aluminum Industry Standards Complies with MSS SP- Type See page for Pressure Temperature Ratings H P A K AA Open Closed A Valve Size Dimensions A H K P AA (0) () () (0) (79) (0) () (0) () () (0) (9) (7) (7) () (7) () (9) () (99) () () (0) (9) () () (9) (0) (7) () () (0) (9) () (7) 0

11 Iron Globe Valves Figure F- Class 0 olted onnet OS&Y ronze Trim Flanged Ends ody Hi-Str. Cast Iron onnet Hi-Str. Cast Iron Disc (" - ") ronze (" - ") Cast Iron ody Seat Ring ronze 7 Disc Seat Ring ronze Stem Manganese ronze 9 Yoke ushing Manganese ronze Packing Non-Asbestos Rings Gland ronze Gland Flange (", " & ") Steel (½", ", " & ") Mall. Iron Handwheel Malleable Iron 7 Disc Stem Ring ronze Locking Device (" - ") - SST Sheet Disc Guide Stem Steel Disc Guide Stem Pin Steel Gasket Non-Asbestos Sheet onnet Studs Steel onnet Stud Nuts Steel 7 Gland Studs Steel - Phos. Coated Gland Stud Nuts Steel - Phos. Coated 9 Handwheel Nut Steel - Phos. Coated 0 Identification Plate Aluminum Disc - Disc Stem Ring Pin* Steel * Not Shown Industry Standards Complies with MSS SP- Type See page for Pressure Temperature Ratings C M Open Valve Size Dimensions C M (9) (9) (7) () (7) () (9) (7) (9) () () () (70) (0) () (7) (9) (0) () () (7) (0) () (9)

12 Figure F-0 Class 0 olted onnet OS&Y ronze Trim Flanged Ends Iron Stop Check Valves 0 9 Features J A L Open Valve designed for steam applications that operate between 00 and 0 psig. The Stop-Check feature of this valve requires a minimum of 0 psi pressure differential between piping system and boiler to operate properly. For installation between boilers suppling the same steam header, and positioned with pressure under the disc. Straightway is for horizontal or vertical line with upward flow. Angle valves are for "horizontaldownward" or "upward-horizontal" flow. These valves will perform the four following important functions:. Act as an automatic-non return valve applied as a containment device to prevent gross backflow of steam from main header to boiler in case the boiler fails.. Assist in cutting out boiler, when ceasing to fire. In this case, valve disc automatically closes to restrict backflow of steam to the boiler.. Assist in returning boiler after a shutdown.. Restricts backflow of steam from header into boiler which has been shut down and accidently opened. The check valve feature should not be relied upon for primary shut-off. Cylindrical shaped disc is the only pressure-actuated part, light in weight with ample guiding surface. It is specially designed to produce a maximum lift at minimum velocities. There are no wing guides to cause "spinning" with resultant rapid wear. Long throttling lip on disc retards flow when seating position is approached. Disc chattering is prevented and wiredrawing of seating surfaces is reduced. Flat Seats, accurately machined, facilitate true seating. Removable cast iron liner guides the disc throughout its full travel. eing entirely independent of the body, it is not subject to distortion by expansion strains. Piston Ring " and larger adds to dashpot's ability to avoid rapid disc movements. Where pulsations are extremely severe, two rings can be installed. Dashpot is self-contained in the liner. It provides an effective cushion for the disc to prevent pipe line vibrations or hammering on the seat at low velocities or on pulsating loads. Flanges conform to ASME.. Flanges have /" raised face with concentric grooves. The body has integral bosses for drain connections. The bosses are tapped and plugged. Determining the proper valve size needed is important. The size of a stop check valve should be based on the boiler capacity and steam flow through the valve, rather than on the size of the boiler outlet or existing piping. E K ody Gray Cast Iron onnet Gray Cast Iron Disc ( /", ", ", ") Steam ronze (", ", 0") Gray Cast Iron Liner ( /", ", ", ") Gray Cast Iron (", ", 0") Gray Cast Iron- Nickel Plated ody Seat Ring Steam ronze Stem Carbon Steel - Nickel Plated 7 Packing Non-Asbestos Rings Gland ( /", ", ", ", ") rass (", 0") rass 9 Gland Flange Ductile Iron 0 Yoke ushing Manganese ronze Handwheel ( /", ", ", ", ") Ductile Iron (", 0") rass Handwheel Nut Carbon Steel Piston Ring** (", ", 0") Chrome Vanadium Steel Throttling Lip* (", ", 0") Steam ronze Drain Plug Carbon Steel - Zinc Plated onnet Studs Carbon Steel onnet Stud Nuts Carbon Steel 7 Gland Studs Carbon Steel - Zinc Plated Gland Stud Nuts Carbon Steel - Zinc Plated onnet Gasket* Non-Asbestos Sheet 9 Seat Ring Gasket Non-Asbestos Sheet 0 Locking Pin* (", ", 0") Carbon Steel - Zinc Plated ID Plate Aluminum * Not Shown ** Sizes " and smaller made without Piston Ring See pages - 0 for sizing and other Technical Data Valve Size 0 Dimensions A E J K L (0) (9) (00) (9) (7) (7) (7) (0) (0) () () () () () () () (97) (0) () (79) () () (7) (9) () () (7) (0) (9) (9) (0) () (9) (0) () () (7) () (,00) (0) () ()

13 Iron Angle Stop Check Valves Figure F- Class 0 olted onnet OS&Y ronze Trim Flanged Ends 0 9 Features J Open Valve designed for steam applications that operate between 00 and 0 psig. The Stop-Check feature of this valve requires a minimum of 0 psi pressure differential between piping system and boiler to operate properly. For installation between boilers suppling the same steam header, and positioned with pressure under the disc. Straightway is for horizontal or vertical line with upward flow. Angle valves are for "horizontaldownward" or "upward-horizontal" flow. These valves will perform the four following important functions:. Act as an automatic-non return valve applied as a containment device to prevent gross backflow of steam from main header to boiler in case the boiler fails.. Assist in cutting out boiler, when ceasing to fire. In this case, valve disc automatically closes to restrict backflow of steam to the boiler.. Assist in returning boiler after a shutdown.. Restricts backflow of steam from header into boiler which has been shut down and accidently opened. The check valve feature should not be relied upon for primary shut-off. Cylindrical shaped disc is the only pressure-actuated part, light in weight with ample guiding surface. It is specially designed to produce a maximum lift at minimum velocities. There are no wing guides to cause "spinning" with resultant rapid wear. Long throttling lip on disc retards flow when seating position is approached. Disc chattering is prevented and wiredrawing of seating surfaces is reduced. Flat Seats, accurately machined, facilitate true seating. Removable cast iron liner guides the disc throughout its full travel. eing entirely independent of the body, it is not subject to distortion by expansion strains. Piston Ring " and larger adds to dashpot's ability to avoid rapid disc movements. Where pulsations are extremely severe, two rings can be installed. Dashpot is self-contained in the liner. It provides an effective cushion for the disc to prevent pipe line vibrations or hammering on the seat at low velocities or on pulsating loads. Flanges conform to ASME.. Flanges have /" raised face with concentric grooves. The body has integral bosses for drain connections. The bosses are tapped and plugged. Determining the proper valve size needed is important. The size of a stop check valve should be based on the boiler capacity and steam flow through the valve, rather than on the size of the boiler outlet or existing piping. A A E K ody Gray Cast Iron onnet Gray Cast Iron Disc ( /", ", ", ") Steam ronze (", ", 0") Gray Cast Iron Liner ( /", ", ", ") Gray Cast Iron (", ", 0") Gray Cast Iron- Nickel Plated ody Seat Ring Steam ronze Stem Carbon Steel - Nickel Plated 7 Packing Non-Asbestos Rings Gland ( /", ", ", ", ") rass (", 0") rass 9 Gland Flange Ductile Iron 0 Yoke ushing Manganese ronze Handwheel ( /", ", ", ", ") Ductile Iron (", 0") rass Handwheel Nut Carbon Steel Piston Ring** (", ", 0") Chrome Vanadium Steel Throttling Lip* (", ", 0") Steam ronze Drain Plug Carbon Steel - Zinc Plated onnet Studs Carbon Steel onnet Stud Nuts Carbon Steel 7 Gland Studs Carbon Steel - Zinc Plated Gland Stud Nuts Carbon Steel - Zinc Plated onnet Gasket* Non-Asbestos Sheet 9 Seat Ring Gasket Non-Asbestos Sheet 0 Locking Pin* (", ", 0") Carbon Steel - Zinc Plated ID Plate Aluminum * Not Shown ** Sizes " and smaller made without Piston Ring See pages - 0 for sizing and other Technical Data Valve Size 0 Dimensions A E J K () (9) (7) (9) (9) (9) (0) (7) () () (7) () () () () (00) (79) (9) () () () () (7) (0) () (7) () (70) (0) (9) () () () (0) ()

14 Figure G-7 Malleable Iron Globe Valves Class 00 Union onnet Rising Stem Nickel Plug Threaded Ends ody Malleable Iron onnet Malleable Iron Stem Malleable Iron Plug Nickel Alloy Union Ring Malleable Iron Packing Asbestos Free 7 Gland Mild Steel Packing Nut Malleable Iron 9 ody Seat Ring % Chrome Steel 0 Disc Stem Ring % Chrome Steel Lock Washer - Stainless Steel Handwheel Malleable Iron Handwheel Nut Steel (Phosphated) Identification Plate Aluminum Temperature Valve Ratings Working Pressures, Non-shock, PSI F C PSI kpa -0 to 0-0 to C M Open Valve Size Dimensions C M.... (7) () (9) (.).... (7) () (9) (.)...0. () () (7) (.7)..7.. () (70) () (.) (7) (7) (99) (.7) (9) (9) () (.7) (9) (0) () (.) (9) () () (.7)

15 Iron Gate Valves Figure G-0 Class olted onnet Non-Rising Stem ronze Trim Threaded Ends 7 7 ody Cast Iron onnet Cast Iron Disc (" - ") ronze (") Cast Iron Seat Ring ronze 7 Disc Ring (") ronze Stem Manganese ronze Stuffing ox Ductile Packing Non-Asbestos Rings Gland Flange Ductile Handwheel Ductile Handwheel Nut Carbon Steel onnet Gasket Non-Asbestos Sheet onnet olt Carbon Steel onnet olt Nut Carbon Steel Gland olt Carbon Steel 7 Gland olt Nut Carbon Steel EZP Stuffing ox Gasket Non-Asbestos Sheet Stuffing ox olt* Carbon Steel Stuffing ox olt Nut* Carbon Steel * Not shown Industry Standards Complies with MSS SP-70 Type and WW-V- Type, Class See page for Pressure Temperature Ratings C A Valve Size Dimensions A C...00 (7) (7) (0) () () () (0) () (7) (7) (0) (0) (0) () () ()

16 Figure G- Iron Gate Valves Class olted onnet Non-Rising Stem ronze Trim Flanged Ends 7 Valve Dimensions Size C M (7) (0) (7) () () (0) (9) () (7) (0) (0) () () () (9) () (7) () () (7) () (0) (7) () () () (9) (7) () (0) (0) () (97) (0) () (0) (09) (0) () (0) (9) (9) (0) () (9) (9) () (77) () (0) (7) (99) () (7) (0) () (00) (7) (0) (77) 7 ody Cast Iron onnet Cast Iron Disc (" - ") ronze (" - 0") Cast Iron Seat Ring (" - ") ronze (" - 0") ronze 7 Disc Ring (" - ") ronze (" - 0") ronze Stem (" - ") Manganese ronze (" - 0") Copper-Silicon ronze Stuffing ox (" - ") Ductile (0" - 0" Cast Iron Packing Non-Asbestos Rings Gland Flange (" - ") Ductile (" - 0") Ductile Gland* (0" - ") ronze Handwheel Ductile Handwheel Nut Carbon Steel onnet Gasket Non-Asbestos Sheet onnet olt Carbon Steel onnet olt Nut Carbon Steel Gland olt Carbon Steel 7 Gland olt Nut Carbon Steel EZP Stuffing ox Gasket Non-Asbestos Sheet Stuffing ox olt* Carbon Steel Stuffing ox olt Nut* Carbon Steel Gland Follower* (0" - ") Ductile * Not shown Industry Standards Complies with MSS SP-70 Type See page for Pressure Temperature Ratings C M

17 Iron Gate Valves Figure G- Class olted onnet Non-Rising Stem All Iron Flanged Ends 7 9 ody Cast Iron onnet Cast Iron Disc Cast Iron Stem Steel - Nickel Plated 9 Disc Nut (" - ") CR Stainless Steel Stuffing ox Ductile Packing Non-Asbestos Rings Gland Flange Ductile Handwheel Ductile Handwheel Nut Carbon Steel onnet Gasket Non-Asbestos Sheet onnet olt Carbon Steel onnet olt Nut Carbon Steel Gland olt Carbon Steel 7 Gland olt Nut Carbon Steel EZP Stuffing ox Gasket Non-Asbestos Sheet Stuffing ox olt* Carbon Steel Stuffing ox olt Nut* Carbon Steel * Not shown Industry Standards Complies with MSS SP-70 Type See page for Pressure Temperature Ratings C M Valve Size Dimesions C M (7) (0) (7) () () (0) (9) (0) (7) (0) (0) () () () (9) () (7) () () (7) () (0) (7) (9) () () (9) () 7

18 Figure G-0 Class olted onnet OS&Y ronze Trim Threaded Ends Iron Gate Valves ody Cast Iron Yoke onnet Cast Iron Disc (") ronze ( /" - ") ronze (") Cast Iron Seat Ring ronze 7 Disc Ring (") ronze Stem Manganese ronze 9 Yoke Sleeve Manganese ronze Packing Non-Asbestos Rings Gland Ductile Handwheel Ductile Handwheel Nut Sintered Nickel Steel onnet Gasket Non-Asbestos Sheet onnet olt Carbon Steel onnet olt Nut Carbon Steel Gland olt Carbon Steel 7 Gland olt Nut Carbon Steel EZP Yoke Cap* Ductile 7 Yoke Cap olt Carbon Steel Yoke Cap olt Nut Carbon Steel * Not shown Industry Standards Complies with MSS SP-70 Type and WW-V- Type, Class See page for Pressure Temperature Ratings Open D Closed C A Valve Size Dimensions A C D (7) (7) (0) () () () (0) (0) () (7) (7) () (0) () () (0) () () () ()

19 Iron Gate Valves Figure G- Class olted onnet OS&Y ronze Trim Flanged Ends 9 7 Valve Dimensions Size C M (7) (0) (7) () (0) (0) (9) () () (0) (0) () () () (9) () () () () () (770) (0) (7) (7) (99) () (9) () () (7) (0) () () (7) () (0) () (0) () (9) (9) (9) (0) (7) (0) (9) () (79) (0) (0) (7) (9) (77) (7) (0) () (070) (7) (0) (9) (9) (7) (7) (7) 7 7 ody Cast Iron onnet Cast Iron Disc (") ronze ( /"& ") ronze (" - ") Cast Iron ody Seat Ring (" - ") ronze (" - ") ronze 7 Disc Seat Ring (" - ") ronze (" - ") ronze Stem (" - ") Manganese ronze (" - ") rass 9 Yoke Sleeve (" - ") Manganese ronze (" - ") Ductile Iron Packing Non-Asbestos Rings (" - ") Ductile Iron Gland ( Piece) (" - ") Ductile Iron Gland* (0" & ") ronze Gland Flange* (0" & ") Ductile Iron Handwheel Ductile Iron Handwheel Nut (" - ") Sintered Nickel Steel (0" - ") Ductile Iron onnet Gasket Non-Asbestos Sheet onnet olt Carbon Steel onnet olt Nut Carbon Steel Gland olt (" - ") Carbon Steel Gland Eyebolt* (" - ") Carbon Steel 7 Gland olt Nut Carbon Steel Yoke Cap (" - ") Ductile Iron (0" - ") Cast Iron 7 Yoke Cap olt (" - ") Carbon Steel Yoke Cap olt Nut (" - ") Carbon Steel 9 Stem Collar Seat* (" - ") rass 0 Disc Pin* (" - ") rass Yoke olt* (" - ") Carbon Steel Yoke olt Nut* (" - ") Carbon Steel Yoke to onnet olt* (" - ") Carbon Steel ackseat ushing* (" - ") rass Eyebolt Pin* (" - ") Carbon Steel Yoke* (" - ") Cast Iron * Not shown Industry Standards Complies with MSS SP-70 Type See page for Pressure Temperature Ratings C M Open 9

20 Figure G- Class olted onnet OS&Y All Iron Flanged Ends Iron Gate Valves 0 9 Valve Size Dimensions C M (7) (0) (7) () (0) (0) (9) () () (0) (0) () () () (9) () () () () () (770) (0) (7) (7) (99) () (9) () () (7) (0) () () (7) () (0) () (0) () (97) (9) (9) (0) (7) (0) (9) () (790) (0) (0) (7) (9) (7) (7) (0) () (9) (9) (0) (0) (9) (07) (7) (7) 7 7 ody Cast Iron onnet Cast Iron Disc Cast Iron Seat Ring (" - ") Cast Iron Stem Carbon Steel, NI-PLA 9 Yoke Sleeve Manganese ronze Packing Non-Asbestos Rings Gland (" - ") Ductile (0" - ") Carbon Steel ZN-PLA Handwheel Ductile Handwheel Nut (" - 0") Sintered Nickel Steel (" - ") Ductile onnet Gasket Non-Asbestos Sheet onnet olt Carbon Steel onnet olt Nut Carbon Steel Gland olt Carbon Steel 7 Gland olt Nut Carbon Steel, ZN-PLA Yoke Cap Ductile 7 Yoke Cap olt Carbon Steel Yoke Cap olt Nut Carbon Steel GLD Follower* (0" - ") Ductile * Not shown Industry Standards Complies with MSS SP-70 Type See page for Pressure Temperature Ratings C M Open

21 Malleable Iron Gate Valves Figure G-7 Class 0 U-olt onnet Rising Stem All Iron Threaded Ends 7 9 ody Malleable Iron onnet Malleable Iron Disc Malleable Iron Stem Nickel Plated Steel Packing Asbestos Free Gland Nickel Plated Steel 7 Packing Nut Malleable Iron Gasket Asbestos Free 9 U olt Mild Steel 0 U olt Nuts* Mild Steel Identification Plate Aluminum Handwheel Nut Mild Steel Handwheel Malleable Iron * Not shown Temperature Working Pressures, Non-shock Valve ¼" - " ½" - " Ratings (mm - 0mm) (mm - 00mm) 0 psi, Sat. Steam psi, Sat. Steam F C PSI kpa PSI kpa -0 to 0-0 to C M Open Valve Dimensions Size C M (9) () (7) (0.) (9) () (7) (0.) (9) () () (0.).... (7) () (9) (.0) () (70) () (.0) () (7) (7) (.) () (9) (0) (.7) (9) (0) (9) (.0) () () (0) (.7) (90) () () (0.7) (0) (9) () (.)

22 Figure G-79 Malleable Iron Gate Valves Class 0 U-olt onnet Rising Stem ronze Trim Threaded Ends 7 ody Malleable Iron onnet Malleable Iron Disc ronze Stem rass Packing Asbestos Free Gland (½"-") Rod rass (") ronze 7 Packing Nut Malleable Iron Gasket Asbestos Free 9 U olt Mild Steel 0 U olt Nuts* Mild Steel Identification Plate Aluminum Handwheel Nut Mild Steel Handwheel Malleable Iron ody Seat Rings ronze * Not shown 9 Temperature Working Pressures, Non-shock Valve ¼" - " ½" - " Ratings (mm - 0mm) (mm - 00mm) 0 psi, Sat. Steam psi, CWP psi, Sat. Steam 7 psi, CWP F C PSI kpa PSI kpa -0 to 0-0 to C M Open Valve Dimensions Size C M (9) () (7) (0.) (9) () (7) (0.) (9) () () (0.0).... (7) () (9) (.0) () (70) () (.0) () (7) (7) (.) () (9) (0) (.7) (9) (0) (9) (.0) () () (0) (.7) (90) () () (0.7) (0) (9) () (.)

23 Malleable Iron Gate Valves Figure G-7 Class U-olt onnet Rising Stem All Iron Flanged Ends 7 ody Malleable Iron onnet Malleable Iron Disc Malleable Iron Stem N/plated Steel Packing Asbestos Free Gland Ni Plated Steel 7 Packing Nut Malleable Iron Gasket Asbestos Free 9 U olt Mild Steel 0 U olt Nuts* Steel Identification Plate Aluminum Handwheel Nut Mild Steel Handwheel Malleable Iron * Not shown 9 Temperature Working Pressures, Non-shock Valve " - " ½" - " Ratings (mm - 0mm) (mm - 00mm) 00 psi, CWP 7 psi, CWP F C PSI kpa PSI kpa -0 to 0-0 to C M Open Valve Dimensions Size C M () (70) () (.9) () (9) (9) (.7) (9) (0) (0) (.) () () () (9.97) (90) () (9) (.0) (0) (9) (7) (7.9)

24 Figure F- Iron Gate Valves Class 0 olted onnet Non-Rising Stem ronze Trim Flanged Ends 9 7 Industry Standards Complies with MSS SP-70 Type and WW-V-, Type, Class See page for Pressure Temperature Ratings ody Cast Iron onnet Cast Iron Disc (" - ") ronze (" - ") Cast Iron Seat Ring ronze Disc Ring (" - ") ronze Stem (" - ") Manganese ronze (0") Naval rass (") Manganese ronze 7 Stuffing ox (" - ") Ductile (" - ") Cast Iron Gland (" - ") Ductile (" - ") ronze 9 Gland Flange (" - ") Ductile 0 Handwheel Ductile onnet olts Carbon Steel onnet olt Nuts Carbon Steel Stuffing ox olts* Carbon Steel Gland Studs ( /" - ") Carbon Steel Gland olts (", " - ") Carbon Steel Gland Stud or olt Nuts Steel EZP Stuffing ox Studs* Carbon Steel 7 Stuff ox Stud - olt Nuts Carbon Steel Handwheel Nut Carbon Steel 9 onnet Gasket Non-Asbestos Sheet 0 Packing Non-Asbestos Rings Stuffing ox Gasket Non-Asbestos Sheet Disc ushing ronze Identification Plate Aluminum *Not shown C M Valve Size 0 Dimensions C M (0) (0) () () () (0) () () () () () () () (0) (0) (79) () (0) (0) () (7) (0) (9) () (9) (9) (7) () (00) (0) (0) ()

25 Iron Gate Valves Figure F-7 Class 0 olted onnet OS&Y ronze Trim Flanged Ends 9 Industry Standards Complies with MSS SP-70 Type and WW-V-, Type, Class See page for Pressure Temperature Ratings ody Cast Iron onnet Cast Iron Disc (" - ") ronze (" - ") Cast Iron Seat Ring ronze 7 Disc Ring (" - ") ronze Stem (", /", ", ", ", ") Manganese ronze (", 0", ") Naval rass 9 Yoke Sleeve Manganese ronze Packing Non-Asbestos Rings Gland (", /", ", ", ") Ductile (" - ") ronze Gland Flange* (") Carbon Steel (", 0", ") Ductile Handwheel Ductile Handwheel Nut (" - ") Sintered Nickel Steel (" - ") Ductile onnet Gasket Non-Asbestos Sheet onnet olt Carbon Steel onnet olt Nut Carbon Steel Gland olt (", /", ", ", ", ") Carbon Steel Gland Stud (", 0", ") Carbon Steel 7 Gland olt Nut Carbon Steel EZP Yoke Cap (", /", ", ", ") Ductile (") Cast Iron 7 Yoke Cap olt Carbon Steel Yoke Cap olt Nut Carbon Steel Yoke Hub olt* (", 0", ") Carbon Steel Yoke Hub olt Nut* (", 0", ") Carbon Steel Yoke Pad olt* (", 0", ") Carbon Steel *Not shown C M Open Valve Dimensions Size C M () (0) () () () (0) () () (7) () () () (9) (0) (0) (79) (0) (0) (0) () (,0) (7) (9) (70) (00) (9) (7) (7) (9) (0) (0) ()

26 Figure G-97 Class olted Cap ronze Trim Threaded Ends Iron Check Valves 9 ody Cast Iron Cap Cast Iron Disc ronze Seat Ring ronze Hinge Pin Alum Silicon ronze 9 Hinge ronze Disc Nut rass Side Plug* rass Disc Washer rass Hinge Pin ushing* rass onnet Gasket Non-Asbestos Sheet Cap olt Carbon Steel Cap olt Nut Carbon Steel Identification Plate Aluminum * Not shown Industry Standards Complies with MSS SP-7, Type See page for Pressure Temperature Ratings A Valve Dimensions Size A..0 () () () 7.. () (7) (0) (0) (9) () 9.. () () ()

27 Iron Check Valves Figure G-9 Class olted Cap ronze Trim Flanged Ends Valve Dimensions Size M.0.00 () (0) ()..0 0 (7) () (). 9.0 (9) () (9)..0 7 () (9) () (97) (0) ()..00 (0) () () (0) (9) (0) (0) () (9) (9) (99) (7) (9) (77) (0) (7) (9) () (0) (9) (9) (70) (0) (7).00 0 (77) () (7) 9 ody Cast Iron Cap Cast Iron Disc (" - ") ronze (" - ") Cast Iron Seat Ring (" - ") ronze (" - ") ronze 7 Disc Ring (" - ") ronze (" - ") ronze (" - ") Alum Silicon ronze Hinge Pin (0" - ") Naval rass (" - ") Stainless Steel (" - ") Stainless Steel (" - ") ronze 9 Hinge (" - ") Ductile (" - ") Ductile (" - ") Carbon Steel 0 Disc Stud (" - ") Steel (" - ") Steel Disc Stud Pin (" - ") - Stainless Steel (" - ") Steel Disc Nut (" - ") rass (" - ") Steel Side Plug (" - ") rass (" - ") Ductile Disc Washer (" - ") rass (" - ") Steel Lockwasher* (" - ") Steel 7 Plain Washer* (" - ") Steel Hinge Pin ushing* (" - ") rass (" - ") ronze onnet Gasket Non-Asbestos Sheet Cap olt Carbon Steel Cap olt Nut Carbon Steel Identification Plate Aluminum * Not shown Industry Standards Complies with Military Spec. MIL-V- and MSS SP-7, Type See page for Pressure Temperature Ratings M 7

28 Figure G-9 L&W Iron Check Valves Class olted Cap ronze Trim Flanged End Lever & Weight 9 Valve Dimensions Size M () (0) ()..0 0 (7) () (). 9.0 (9) () ()..0 () (9) () (0) () () (0) (9) (0) (0) () (0) (9) (99) (7) (9) (77) () () (9) () (0) (9) (9) (70) (07) (7) (77) () (7) ody Ferrosteel Cap Ferrosteel Disc (" - ") ronze (") Ferros Steel ody Seat Ring ronze 7 Disc Seat Ring* (") ronze Hinge Pin* Exelloy Stuffing ox* rass Packing* Non-Asbestos Packing Nut* ronze Lever Malleable Iron (" - ") ronze 9 Hinge (") Malleable Iron 0 Disc Stud* (") Steel Disc Stud Pin* (" - Stainless Steel Hinge Pin Key* Steel Nut for Disc (" - ") rass (") Steel Hinge Pin Plug* rass Disc Washer (" - ") rass (") Steel Weight Cast Iron 7 Hinge Pin ushing* ronze Lever Washer* Steel 9 Coupling* Malleable Iron 0 Gib-Key* Steel Lever Nut* Steel Di-Chromate Gasket Non-Asbestos Sheet Cap olts Steel Cap olt Nuts Steel ID Plate* Aluminum * Not shown Parts indicated are necessary for changing regular valve to outside lever and weight See page 7 for Lever and Weight Technical Orientation Data M

29 Iron Check Valves Figure G-9 Class olted Cap All Iron Flanged Ends Valve Size 0 0 Dimensions M.0.00 () (0) ()..0 0 (7) () (). 9.0 (9) () (9)..0 7 () (9) () (97) (0) ()..00 (0) () () (0) (9) (0) (0) () (00) (9) (99) (99) (9) (77) () () (9) () (0) (9) (9) (70) (07) (7) (77) () (7) 9 ody Cast Iron Cap Cast Iron Disc (" - ") Ductile (" - ") Cast Iron Seat Ring* (", 0" - ") Cast Iron (" - ", " - ") Cast Iron (Integral) Hinge Pin Stainless Steel 9 Hinge Ductile 0 Disc Stud (" - ") Steel (" - ") Steel Disc Stud Pin (" - ") - Stainless Steel (" - ") Steel Disc Nut (" - ") Steel Side Plug* (" - ") Carbon Steel (" - ") Ductile Disc Washer (" - ") Carbon Steel Lockwasher* (" - ") Steel 7 Plain Washer* (" - ") Steel Hinge Pin ushing* (" - ") Carbon Steel Cap Gasket Non-Asbestos Sheet Cap olt Carbon Steel Cap olt Nut Carbon Steel Identification Plate Aluminum * Not shown Industry Standards Complies with Military Spec. MIL-V- and MSS SP-7, Type See page for Pressure Temperature Ratings M 9

30 Figure F-97 Class 0 olted Cap ronze Trim Flanged Ends Iron Check Valves ody Ferrosteel Cap Ferrosteel Disc (" - ") ronze (" - ") Cast Iron Hinge Malleable Iron Hinge Pin (" - ") Cr. Stainless Steel (" - ") ronze Hinge Pin Plug* ronze 7 ody Seat Ring ronze Disc Seat Ring (" - ") ronze 9 Disc olt (" - ") Steel 0 Disc Nut Washer Steel Disc olt Nut Steel - Dichromate Fin. Cap Studs Steel Cap Stud Nuts Steel Gasket Non-Asbestos Sheet Identification Plate Aluminum *Not shown Industry Standards Complies with MSS SP-7 Type and Military Specifications MIL-V- Group, Type, Trim See page for Pressure Temperature Ratings M Valve Size Dimensions M. 0.0 () (7) ().00.0 () (9) (9) (9) () () () () (0) (9) () () (79) () () 0

31 Malleable Iron Check Valves Figure G-97 Class 00 Threaded Cap Y-Pattern All Iron Threaded Ends 7 9 ody Malleable Iron Cap Malleable Iron Disc (½" & ¾") Mild Steel (" - ") Malleable Iron Disc Hinge Nut Steel Hinge Pin % Chrome Steel Hinge Malleable Iron 7 Hinge Pin Plug % Chrome Steel Identification Plate Aluminum 9 Drive Screw Steel Temperature Valve Ratings Working Pressures, Non-shock, PSI F C PSI kpa -0 to 0-0 to M Valve Size Dimensions M (70) () (.) () () (.).0..0 (0) () (.) (0) (7) (.0) (7) () (.) () (09) (.)

32 Figure WG-9 Iron Wafer Check Valves 00 CWP Iron ody EPDM Seat ody Cast Iron Disc* Stainless Steel Seal EPDM Pin Retainer Cast Iron Stop Pin Stainless Steel Spring Stainless Steel 7 Hinge Pin Stainless Steel Plate earing PTFE *", ½", ", 0", & " Material: Aluminum ronze 7 A Dia. C Minimum Flange ore Valve Size 0 Dimensions A C (0) () () (.7) () () () (.7) (7) (7) (7) (.0) (7) () (0) (.90) (97) (70) (7) (9.9) () (7) () (.0) (79) (9) (0) (.9) (0) (0) () (.0) (09) () (0) (70.0)

33 Iron Wafer Check Valves Figure WG-970 Class Iron ody una-n Seat 0 9 ody Cast Iron Plate Aluminum ronze Seal una-n Stop Pin Stainless Steel Hinge Pin Stainless Steel Spring Stainless Steel 7 Stop Pin Retainer Stainless Steel Hinge Pin Retainer Stainless Steel 9 ody earing PTFE 0 Plate earing PTFE Spring earing PTFE 7 A Dia. C Minimum Flange ore Valve Dimensions Size A C (0) () () (.7) ½ () () () (.7) (7) (7) (7) (.0) (7) () (0) (.90) (97) (70) (7) (9.9) () (7) () (.0) (79) (9) (0) (.) (0) (0) () (.0) (09) () (0) (70.7) () () () (9.0) () (9) () (.0) (9) (0) (9) (7.0) (07) () (7) (7.7) (7) () (7) (.9) () (0) (7) (9.) (0) () (9) (.)

34 Figure G--I* International Iron Globe Valves Class olted onnet OS&Y ronze Trim Flanged Ends ody Hi-Str. Cast Iron onnet Hi-Str. Cast Iron Disc (" - ") ronze (" - 0") Cast Iron ody Seat Ring ronze 7 Disc Seat Ring* (" & 0") ronze Stem Manganese ronze 9 Yoke ushing Manganese ronze Packing Non-Asbestos Rings Gland (" - ") rass (" - 0") ronze Gland Flange Ductile Handwheel Ductile 7 Disc Stem Ring ronze 0 Stem Hole ushing rass Locking Device (" - ") - SST Sheet Disc Guide Stem* (" & 0") rass Disc Guide Stem Pin* (" & 0") rass onnet Gasket Non-Asbestos Sheet onnet Studs Steel onnet Stud Nuts Steel 7 Gland Studs Naval rass Gland Stud Nuts rass 9 Handwheel Nut Steel - Phos. Coated 0 Identification Plate Aluminum * Not shown * NOTE: All International Iron valves are painted gray. C M Open Industry Standards Complies with MSS SP- Type See page for Pressure Temperature Ratings Valve Dimensions Size C M () (0) (0) () (9) (0) () () (7) (9) () () (9) () (9) () () () (0) (7) (9) (0) () (0) () (0) (9) () (77) (7) () (9)

35 International Iron Gate Valves Figure G--I* Class olted onnet Non-Rising Stem ronze Trim Flanged Ends 7 7 ody Cast Iron onnet Cast Iron Disc (" - ") ronze (" - ") Cast Iron Seat Ring ronze 7 Disc Ring (" - ") ronze Stem Manganese ronze Stuffing ox (" - ") Ductile (0" - ") Cast Iron Packing Non-Asbestos Rings Gland Flange (" - ") Ductile Gland* (0" - ") ronze Handwheel Ductile Handwheel Nut Carbon Steel onnet Gasket Non-Asbestos Sheet onnet olt Carbon Steel onnet olt Nut Carbon Steel Gland olt Carbon Steel 7 Gland olt Nut Carbon Steel EZP Stuffing ox Gasket Non-Asbestos Sheet Stuffing ox olt* Carbon Steel Stuffing ox olt Nut* Carbon Steel Gland Follower* (0" - ") Ductile * Not shown Industry Standards Complies with MSS SP-70 Type See page for Pressure Temperature Ratings C M * NOTE: All International Iron valves are painted gray. Valve Dimensions Size C M (7) (0) (7) () () (0) (9) () (7) (0) (0) () () () (9) () (7) () () (7) () (0) (7) () () () (9) (7) (9) (0) (0) (0) (9) (7) () ()

36 Figure G--I* International Iron Gate Valves Class olted onnet OS&Y ronze Trim Flanged Ends ody Cast Iron onnet Cast Iron Disc (") ronze ( /" & ") ronze (" - ") Cast Iron ody Seat Ring ronze 7 Disc Seat Ring (" - ") ronze Stem Manganese ronze 9 Yoke Sleeve Manganese ronze Packing Non-Asbestos Rings Gland ( Piece) (" - ") Ductile Iron Gland* (0" & ") ronze Gland Flange* (0" & ") Ductile Iron Handwheel Ductile Iron Handwheel Nut (" - ") Sintered Nickel Steel (0" - ") Ductile Iron onnet Gasket Non-Asbestos Sheet onnet olt Carbon Steel onnet olt Nut Carbon Steel Gland olt Carbon Steel Gland Eyebolt Carbon Steel 7 Gland olt Nut Carbon Steel Yoke Cap (" - ") Ductile Iron (0" - ") Cast Iron 7 Yoke Cap olt Carbon Steel Yoke Cap olt Nut Carbon Steel * Not shown C M Open * NOTE: All International Iron valves are painted gray. Industry Standards Complies with MSS SP-70 Type See page for Pressure Temperature Ratings Valve Dimensions Size C M (7) (0) (7) () (0) (0) (9) () () (0) (0) () () () (9) () () () () () (770) (0) (7) (7) (99) () (9) () () (0) (0) () () (7) () (0)

37 International Iron Check Valves Figure G-9-I* Class olted Cap ronze Trim Flanged Ends 9 ody Cast Iron Cap Cast Iron Disc (" - ") ronze (" - ") Cast Iron Seat Ring ronze 7 Disc Ring (" - ") ronze Hinge Pin (" - ") Alum Silicon ronze (0" - ") Naval rass 9 Hinge (" - ") ronze (" - ") Ductile 0 Disc Stud (" - ") Steel Disc Stud Pin (" - ") - Stainless Steel Disc Nut (" - ") rass (" - ") Steel Side Plug rass Disc Washer (" - ") rass (" - ") Steel Hinge Pin ushing* rass onnet Gasket Non-Asbestos Sheet Cap olt Carbon Steel Cap olt Nut Carbon Steel Identification Plate Aluminum * Not shown Industry Standards Complies with Military Spec. MIL-V- and MSS SP-7, Type See page for Pressure Temperature Ratings * NOTE: All International Iron valves are painted gray. M Valve Size 0 Dimensions M.0.00 () (0) ()..0 0 (7) () (). 9.0 (9) () (9)..0 7 () (9) () (97) (0) ()..00 (0) () () (0) (9) (0) (0) () (9) (9) (99) (7) 7

38 Technical Data Y-Pattern Stop Check Valve Iron Valves Selecting the Proper Size Determining Pressure Drop Since stop-check valves have a floating disc member, it is important the valve be sized to provide full disc lift under flow conditions prevailing during the major portion of the service life. If the valve is too large, the disc will float in a partially open position and may cause fluttering of the disc and rapid wear. Conversely, if the valve is too small, pressure drop will be excessive. The chart on the following page is a graphic presentation of flow data determined by test. Its use offers a simple method of determining the best size stop-check valve, as well as the pressure drop under varying conditions of flow, without any computation. How to Use the Chart Shown on the Following Page Given: Steam Pressure-Temperature...0 psig 0 F Flow Rate...Typical Daily Demand Curve RATE OF FLOW IN POUNDS PER HOUR Find: 00,000 90,000 0,000 70,000 0,000 0,000 0,000 0,000 0,000 0,000 0 Midnight Typical Daily Load-Demand Curve 0-Inch Valve -Inch Valve AM Noon TIME OF DAY PM Midnight Valve Catalog No. and the best size for above installation. Solution:. Enter the Temperature chart at 0 F. Move vertically upward to the curved line for 0 psi, then horizontally to the right to establish a point on the specific volume scale. From this point, draw a line through the flow rate being investigated (00,000 Lb/H) and establish a point on Index.. From that point, draw another line through the valve size, for example the -inch size, and establish a point on Index. Now move horizontally to the diagonal pressure drop line on the right side. Where these lines intersect, the pressure drop is 7. psi for the -inch, Class 0 globe valve and. psi for the -inch Class 0 angle valve. Chart solutions resulting in a point on Index that falls below the Line A-A for Class 0 valves indicate the disc will not be fully lifted under the flow conditions used. Operation under such conditions is not recommended but, at times, must be tolerated for short periods during the low loads.. Enter the chart where Line A-A intersects Index for Class 0 valves. Move diagonally upward through the size being investigated (-inch) and establish a second point on Index. From this point, extend a line to the specific volume established in Step and at its intersection with the flow rate line, read,000 Lb/H as the minimum flow rate at which the disc will be in the fully lifted position. The pressure drop at this flow rate is.9 psi for globe and. psi for angle valves.. Repeat Steps and for other possible valve sizes, tabulate results, and make size selection on basis of pressure drop and duration of partial disc lift considerations. Valve Press Max.Min. Flow Rate for Size Flow rate (00,000 #/Hr.), psi Wide open valve (Inches) Globe Angle #/Hr. 0..,00 7.., ,000 Dotted lines on Demand Curve indicate minimum flow rates for wide open " and 0" valves.. The best choice for this example would be the 0" size because pressure drop is much lower and duration of partially lifted disc is only slightly greater than for the " size.. Pressure drop for any intermediate flow condition can be determined as outlined in Steps and. 7. Valves require a minimum of 0 psi differential pressure to seat the valve.

39 Iron Valves Technical Data Y-Pattern Stop Check Valve Stockham olted onnet Stop-Check Valves Selecting the Proper Size Determining Pressure Drop 9

40 Installation Recommendations Y-Pattern Stop-Check and Isolation Gate Valves Iron Valves DRAIN Straight-Way Y-Pattern Installed in a horizontal line OILER DRAIN HEADER HEADER Straight-Way Y-Pattern Installed in a vertical line for upward flow DRAIN OILER DRAIN OILER Angle Y-Pattern Installed for horizontal-todownward flow DRAIN HEADER 0 OILER DRAIN Angle Y-Pattern Installed for upwardto-horizontal flow HEADER As shown in these diagrams, Stockham Y-Pattern stop-check valves used in a boiler installation can be positioned for horizontal or upward flow. The proper method for draining both Y-pattern stop-check valves and isolation gate valves is shown for typical mounting positions. Tapped and plugged drain holes are furnished. For top efficiency, be sure the proper size valve is used.

41 Iron Valves Notes

42 Iron Valves Notes

43

44 CRANE Energy Global Headquarters 9 David Memorial Drive, Suite 0 Shenandoah, Texas 77 Tel: Fax: Stockham Customer Service 9 rd Avenue, S.E. Cullman, Alabama 0 Tel: +-00-STOCKHAM Fax: CRANE Energy Flow Solutions brands you know...technology you want...solutions you need all, Check, Corrosion Resistant Gate and Globe Valves Valve System Solutions, Highly Engineered Specialty Valves Lined Check and Resilient Seated utterfly Valves Nozzle-Type, Severe Service Check Valves all, ronze, utterfly, Cast Steel, and Iron Valves PACIFIC VALVES High Pressure and Severe Service Valves High Performance Wafer Check Valves all, ronze, utterfly, Cast Steel, and Iron Valves High Performance utterfly and Metal Seated Valves Cast Steel Valves all, ronze, utterfly, Cast Steel, and Iron Valves Certified Valve Repair Services Aloyco, Center Line, Compac-Noz, Crane, Duo-Chek, Flowseal, Jenkins, Krombach, Noz-Chek, Pacific, Stockham, Triangle, and Uni-Chek are all trademarks of Crane Co. 009 EG-SC-CT-EN-L-0-09 (CV-0)