Needle Valves.

Transcription

1 eedle Valves Series,, psi ( bar) Series,, psi ( bar) Series,, psi ( bar) Series,, psi ( bar) Series,, psi ( bar) ITOK roup ITOK mb (eadquarter) Sprendlinger Landstr., Offenbach am ain, ermany Tel.: + ax: + ITOK, Inc. orth Promenade lvd., Suite, Stafford, Texas, US Tel.: + ax: + ITOK Incorporated -, lock, Zone, Yingtailong lndustrial Park, alang Street, Longhua istrict, Shenzhen,, hina Tel.: + ax: + ITOK iddle ast Oil quipment Trading LL -, akateb Tower, irport Road, P.O.ox, eira, ubai, U Tel.: + ax: + info@fitokgroup.com K-I-V---

2 eedle Valves ontents Series, psi ( bar) Series, psi ( bar) Series, psi ( bar) Series, psi ( bar) eatures on-rotating stem and bar stock body design. asy to assemble and replace packing. etal-to-metal seating chieves ideal shutoff, longer stem/seat service lifetime for abrasive flow, excellent corrosion resistance and greater durability for repeated on/off cycles. PT is the standard packing material, RPT glass, raphite and extended stuffing box with raphite also available. The material of packing gland and upper stem have been selected to achieve reduced handle torque and extended thread cycle life. The material of valve body is SS, the material of lower stem is -P SS. Options for Vee or Regulating stem tips. The location of packing is under the thread of valve stem. The locking device of packing gland is reliable. ive flow patterns are available. Series, psi ( bar) Technical ata Series onnector Size / " Tube (. v Room Temperature psig (bar), ( Opreating Temperature, psi ( bar) / " Tube ( ), ( - ~ (- ~ ) " Tube (.., ( Part umber escription / emale PT / emale SPT emale PT emale SPT S RT S RT ( ) (. )., (, ( - ~ (- ~ ) otes: The values of v shown are for -way straight valve pattern. The values of v for -way angle pattern will be increase about % (ase on water). xtreme Temperatures PT is the standard packing material for ITOK Series eedle Valves; RPT glass, raphite (used by Tube connectors only) and extended stuffing box with raphite (used by Tube connectors only) also available. ormal eedle Valve with PT packing can be operated from - (- ) to ( ). ormal eedle Valve with RPT glass packing can be operated from - (- ) to ( ). ormal eedle Valve with raphite packing can be operated from (-. ) to ( ). xtended stuffing box Valve with raphite packing can be operated from (- ) to ( ).

3 eedle Valves eedle Valves low ata at ( ) Pressure & Temperature imensions (Tube onnectors) Temperature ( ) (- (- ( () ( () ( ( ( Straight ngle ngle (replaceable seat) umber of turns open Regulating Stem Tip Vee Stem Tip low oefficient v % Pressure (psig) efore ( ) fter ( ) - ( () ( () Temperature ( ) When exceeding ( ), use the pink curve as its cold-worked rating for future operating of the components. Pressure (bar) Standard aterials of onstruction umber SS-- SS-- SS-- imensions (Straight) (. () (. Thickness ( (.) () () (.) (. (.) ( (.) (. () ( (.). (.. ( () () ( ( (. ( (.. (.). (. (.) () () () (.) imensions (ngle) Item omponent aterial rade/st Specification andle ead andle Upper Stem Packing land Locking Screw Locking Plate Packing Ring Packing Packing Washer Lower Stem ody Lubricant SS/ / SS/ / PT/RPT/raphite/extended stuffing box valve with raphite -P/ -P/ SS/ olybdenum disulfide umber SS-- SS-- SS-- imensions (ngle/replaceable seat) umber SS-- SS-- SS-- (. () (. (. () (. Thickness ( (.) () () (. () Thickness ( (.) () () (.) (. (.) (.) (. (.) (. () ( (). (. (.. (.. () (.. (.. (). ( () (). ( () () ( ( ( ( (. ( (. (. ( (.. (). (.). (.). (. (. (.) () () () () () () (.) (.)

4 eedle Valves eedle Valves imensions (Tube onnectors) -way/ on pressure -way/ on pressure -way/ stem manifold imensions (Pipe onnectors) Straight ngle -way/ on pressure imensions (-way/ on pressure) imensions (Straight) umber Thickness umber Thickness SS-- SS-- SS-- (. () (. ( (.) () () (.) (. (.) ( (.) (. () (. (.. (.). ( () () ( ( (. ( (.. (.. (.) (.) () () () (.) SS-S- SS-RT- SS-S- SS-RT- S RT S RT () (.) (. (.) () (. (.) (.). (.) () () ( ( ( (.. (.. () () () imensions ( -way/ on pressure) umber SS-- SS-- SS-- (. () (. Thickness ( (.) () () (.) (. (.) (. () (.. (.. (). ( () () ( ( (. ( (.. (). (.). (.) () () () (.) imensions ( ngle) umber SS-S- SS-RT- SS-S- SS-RT- S RT S RT () (.) Thickness (. (.) () (. (.). (.. () () () ( ( ( (.. (). ( () () imensions (-way/ stem manifold) umber SS-- SS-- SS-- (. () (. Thickness ( (.) () () (.) (. (.) (.) ( (.) (. (). (. (.). (. ( () () ( ( (. ( (.. (.. ( () () () () (.) imensions ( -way/ on pressure) umber SS-S- SS-RT- SS-S- SS-RT- S RT S RT () (.) Thickness (. (.) () (.) (.). (.). (.) () () ( ( ( (.. () () () ()

5 eedle Valves imensions (Pipe onnectors) - way/ on pressure -way/ stem manifold Series, psi ( bar) eedle Valves eatures on-rotating stem and bar stock body design. asy to assemble and replace packing. etal-to-metal seating achieves ideal shutoff, longer stem/seat service lifetime for abrasive flow, excellent corrosion resistance and greater durability for repeated on/off cycles. PT is the standard packing material, RPT glass and raphite also available. The material of packing gland and upper stem have been selected to achieve reduced handle torque and extended thread cycle life. The material of valve body is SS, the material of lower stem is -P SS. Options for Vee or Regulating stem tips. The location of packing is under the thread of valve stem. The locking device of packing gland is reliable. ive flow patterns are available. imensions ( -way/ on pressure) Technical ata umber Thickness onnector Size v Room Temperature psig (bar) Opreating Temperature SS-S- SS-RT- SS-S- SS-RT- S RT S RT () (.) (. (.) () (.) (.). (.. () () () ( ( ( (.. (). ( () () /" Tube /" Tube /" Tube ( (.) (., (), (), () - ~ (- ~ ) /" Tube (.), () imensions ( -way/ stem manifold) umber SS-S- SS-RT- SS-S- SS-RT- S RT S RT () (.) Thickness (. (.) () ( (.) (. (. (.). ( otes: is the drill dimension of packing gland mounting hole. is the dimension of bracket mounting hole. panel mounting drill size: " all valves.. is the dimension of stem in closed position.. ll dimensions for reference only and subject to change. or dimensions not shown above, please contact the authorized representative or ITOK roup. () () ( ( ( (. ( () () () / emale PT / emale SPT / emale PT / emale SPT / emale PT / emale SPT / emale PT / emale SPT S RT S RT S RT S RT ( (. (. (. otes: The values of v shown are for -way straight valve pattern. The values of v for -way angle pattern will be increase about % (ase on water). xtreme Temperatures PT is the standard packing material for ITOK Series eedle Valves; RPT glass and raphite (used by Tube connectors only) also available. ormal eedle Valve with PT packing can be operated from - (- ) to ( ). ormal eedle Valve with RPT glass packing can be operated from - (- ) to ( ). ormal eedle Valve with raphite packing can be operated from (-. ) to ( )., (), (), (), () - ~ (- ~ )

6 eedle Valves low ata at ( ) umber of turns open Regulating Stem Tip Vee Stem Tip low oefficient v % Pressure (psig) Pressure & Temperature (- (- ( () ( () () - Temperature ( ) Temperature ( ) () ( ) () () Pressure (bar) imensions (Tube onnectors) eedle Valves Straight ngle ngle (replaceable seat) Standard aterials of onstruction imensions (Straight) umber Thickness SS-- SS-- SS-- ( (. ) (. (. ) ( ( (. ) (. ) (. ) ( () ( (. ( ( ( ( ( (. ) ( ( (. (. (. ) (. (. (.. (.. (. ) (. (. (. (. (. ) (. ) (. (. ) (. ) SS-- (. ) ( ( (.) ( (. (. ( (.. (.) (. ( ) (. ) Item omponent aterial rade/st Specification andle andle Screw Upper Stem Packing land Locking Screw Locking Plate Packing Ring Packing SS/ / SS/ / PT/RPT/raphite Packing Washer Lower Stem -P/ -P/ ody Lubricant SS/ olybdenum disulfide imensions (ngle) umber SS-- SS-- SS-- SS-- umber imensions (ngle/replaceable seat) SS-- SS-- SS-- SS-- ( (. ) (. (. ) ( (. ) (. (. ) Thickness (. ) ( ( ( (. ) (. ) (. ) ( ( ( (. ( ) ( ) (. (. (.. ( Thickness (. ) ( ( (. (. ) (. ) (. ) ( ( () ( (.) ( () ( (.) ( ( ( ( (. ( (. (. ( (. (. (. (. ( (. (.. ( (. ) (. (. (. (. ) (. (. (. (.). (.). (.. () (.. (. (). ( (. (. (. (. (. (. (. (. (. (. ) (. ) ( ) (. (. ) (. ) ( ) (. (. ) (. ) (. ) (. (. ) (. ) (. )

7 eedle Valves eedle Valves imensions (Tube onnectors) -way/ on pressure -way/ on pressure -way/ stem manifold imensions (Pipe onnectors) Straight ngle -way/ on pressure imensions (-way/ on pressure) umber SS-- SS-- SS-- SS-- umber imensions (-way/ on pressure) SS-- SS-- SS-- SS-- umber imensions (-way/ stem manifold) SS-- SS-- SS-- SS-- ( (.) (. (.) ( (.) (. (.) ( (. ) (. (. ) Thickness ( ( ( (. ) (. ) (. ) ( (. ( ( ( ( ( ( (. ( (. (. ( ) (. (.. ( Thickness ( ( ( (.) (.) ( ) ( ( ( (. (. ( ) ( ) (. (. (.. ( Thickness (. ) ( ( ( (. ) (. ) (. ) ( ( () ( (.) ( () ( (.) ( () ( (.) (. ( ( (. ) ( ( ( (. (. (. (. (. (... ( ) ( (. ) (. (. (. (. ) (. (. (. (. ) (. (. (. (.. (). (). (.) (.). (.). (.. ( ). (. (.. (). (.) (. (. (. (. (. (. (. (. (. (. (. (. (. (. ) (. ) ( ) (. (. ) (. ) ( ) (. (. ) (. ) ( ) (. (. ) (. ) (. ) (. (. ) (. ) (. ) (. (. ) (. ) (. ) imensions (Straight) umber SS-S- SS-RT- SS-S- SS-RT- SS-S- SS-RT- SS-S- SS-RT- imensions (ngle) umber SS-S- SS-RT- SS-S- SS-RT- SS-S- SS-RT- SS-S- SS-RT- S RT S RT S RT S RT S RT S RT S RT S RT ( (. (. (. ( (. (. (. Thickness ( ( () ( (. (. () () ( ( (. ( Thickness ( ( () ( (. (. () (. () () (.. ( (.) (. (.) (. (.). (. ). ( ). (. ) (.. (.). (.). (. (. (. (. (. (. (. () (. () (. (.) (. (.)

8 eedle Valves eedle Valves imensions (-way/ on pressure) imensions (-way/ stem manifold) umber Thickness umber Thickness SS-S- SS-RT- S RT ( ( () (.) (. (. (. (. SS-S- SS-RT- S RT ( (. (. ( (. (.) (. (. (. (. SS-S- SS-RT- S RT (. ( (. (.. () SS-S- SS-RT- S RT (. ( ( ( (. (. (.. (. ) (. (. ) (. ) SS-S- SS-RT- S RT (. ( () (. (.. (. SS-S- SS-RT- S RT (. ( () ( ( (. (. (.. (. ) (. (. ) (. ) SS-S- SS-RT- S RT (. () (. ( (.. (. () (.) SS-S- SS-RT- S RT (. (.) (.. ( ). ( (.. (. ) (. ( ) (. ) imensions (Pipe onnectors) -way/ on pressure -way/ stem manifold otes: is the drill dimension of packing gland mounting hole. is the dimension of bracket mounting hole. panel mounting drill size: " all valves.. is the dimension of stem in closed position.. ll dimensions for reference only and subject to change. or dimensions not shown above, please contact the authorized representative or ITOK roup. imensions (-way/ on pressure) umber Thickness SS-S- SS-RT- S RT ( ( (.) (.) (. (. (. (. SS-S- SS-RT- S RT (. ( (. (). (.) SS-S- SS-RT- S RT (. ( () (. (). (.) SS-S- SS-RT- S RT (. () (.. ( (.. (. () (.)

9 eedle Valves Series, psi ( bar) eatures Tubing sizes available for /", /", / ", / ", ". on-rotating stem and bar stock body design. asy to assemble and replace packing. etal-to-metal seating achieves ideal shutoff, longer stem/seat service lifetime for abrasive flow, excellent corrosion resistance and greater durability for repeated on/off cycles. PT is the standard packing material, RPT glass, raphite and extended stuffing box with raphite also available. xtended stuffing box with raphite can be operated to ( ). The material of packing gland and upper stem have been selected to achieve reduced handle torque and extended thread cycle life. The material of valve body is SS, the material of lower stem is -P SS. Options for Vee or Regulating stem tips. The location of packing is under the thread of valve stem. The locking device of packing gland is reliable. ive flow patterns are available. Technical ata low ata at ( ) umber of turns open Regulating Stem Tip low oefficient v % Vee Stem Tip Standard aterials of onstruction Pressure (psig) Pressure & Temperature (- (- ( () ( () Temperature ( ) efore ( ) fter ( ) - Temperature ( ) eedle Valves ( ( ( () () ( ( When exceeding ( ), use the pink curve as its cold-worked rating for future operating of the components. Pressure (bar) Tube O in. / ( v room Temperature psig (bar), ( Opreating Temperature / (., ( / (., ( - ~ (- ~ ) / (), ( (.)., ( otes: The values of v shown are for -way straight valve pattern. The values of v for -way angle pattern will be increase about % (ase on water). xtreme Temperatures PT is the standard packing material for ITOK Series eedle Valve; RPT glass, raphite and extended stuffing box with graphite also available. ormal eedle Valve with PT packing can be operated from - (- ) to ( ). ormal eedle Valve with RPT glass packing can be operated from - (- ) to ( ). ormal eedle Valve with raphite packing can be operated from (-. ) to ( ). xtended stuffing box Valve with raphite packing can be operated from (- ) to ( ). Item omponent aterial rade/st Specification andle andle Screw Upper Stem Packing land Locking Screw Locking Plate Packing Ring Packing Packing Washer SS/ / SS/ / PT/RPT/raphite/extended stuffing box with raphite -P/ Lower Stem ody Lubricant -P/ SS/ olybdenum disulfide

10 eedle Valves eedle Valves imensions Straight ngle Thickness SS-- SS-- SS-- SS-- SS-- umber imensions (Straight) (. () ( (.) ( ( ( (. () () (.) ( ( (. (. (). ( () (. ( (.. (.. (.. (). (.. () () () (.) () () ( ( (.) ( ( (. () Thickness SS-- SS-- SS-- SS-- SS-- umber imensions (ngle) (. () ( (.) ( ( ( (. () () (). ( () (. ( (. () () (.) () ( ( (. (). (). (.. (.. (. (.). (.) (. (. () ( Thickness SS-- SS-- SS-- SS-- SS-- umber imensions (ngle/replaceable seat) (. () ( (.) ( ( ( (. () () (). ( () (. ( (. () () (.) () ( ( (. (). (.) (.) ( (.) (.). (.) (.). () (. (.. (. (.). (. (). (. ( (.) (. (.) ( (.) (. (.) ( ( ( ( ( ( ( ( (. (. (. ( (.) (. (.) ngle (replaceable seat) imensions -way/ on pressure -way/ on pressure -way/ stem manifold Thickness SS-- SS-- SS-- SS-- SS-- umber imensions (-way/ on pressure) (. () ( (.) ( ( ( (. () () (). ( () (. ( (. () () (.) () () () () (.). (.). (.). (.) (. (). (. ( (.). (.) (.) ( ( (. () ( (.) (. (.) (.

11 eedle Valves eedle Valves imensions (-way/ on pressure) umber Thickness Series, psi ( bar) SS-- SS-- SS-- SS-- SS-- imensions (-way/ stem manifold) umber SS-- SS-- ( (. (. () (.) ( (. ( ( ( (. Thickness ( ( () () ( (.) (. (.) ( ( ( (. () ( ( ( ( ( ( (.. (.). () (.) (.). ( () () ( ( (. ( (.. (.. (.). (). (.. (. (.). (. () () () (.) eatures Tubing sizes available for /", /", /". on-rotating stem and bar stock body design. asy to assemble and replace packing. etal-to-metal seating achieves ideal shutoff, longer stem/seat service lifetime for abrasive flow, excellent corrosion resistance and greater durability for repeated on/off cycles. PT is the standard packing material, RPT glass, raphite and extended stuffing box with raphite also available. xtended stuffing box with raphite can be operated to ( ). The material of packing gland and upper stem have been selected to achieve reduced handle torque and extended thread cycle life. The material of valve body is SS, the material of lower stem is -P SS. Options for Vee or Regulating stem tips. The location of packing is under the thread of valve stem. The locking device of packing gland is reliable. ive flow patterns are available. SS-- SS-- (. () ( () (.) (. (.) (.. (. (.). ( () ( (. (. (.) (.) () () (.) Technical ata SS-- (.) (. () (.) (.) (). ( otes: is the drill dimension of packing gland mounting hole. is the dimension of bracket mounting hole. Panel mounting drill size: " all valves.. is the dimension of stem in closed position.. ll dimensions for reference only and subject to change. or dimensions not shown above, please contact the authorized representative or ITOK roup. () ( (. () () Tube O in. / / / ( ( ( v Room Temperature psig (bar), (, (, ( Opreating Temperature - ~ (- ~ ) otes: The values of v shown are for -way straight valve pattern. The values of v for -way angle pattern will be increase about % (ase on water). xtreme Temperatures PT is the standard packing material for ITOK Series eedle valves; RPT glass, raphite and extended stuffing box with raphite also available. ormal eedle Valve with PT packing can be operated from - (- ) to ( ). ormal eedle Valve with RPT glass packing can be operated from - (- ) to ( ). ormal eedle Valve with raphite packing can be operated from (-. ) to ( ). xtended stuffing box Valve with raphite packing can be operated from (- ) to ( ).

12 eedle Valves eedle Valves low ata at ( ) Pressure & Temperature imensions umber of turns open Regulating Stem Tip Vee Stem Tip low oefficient v % Pressure (psig) (- (- ( () ( () efore ( ) Temperature ( ) fter ( ) - Temperature ( ) ( ( ( ( () () () When exceeding ( ), use the pink curve as its cold-worked rating for future operating of the components. Pressure (bar) Straight ngle ngle (replaceable seat) Standard aterials of onstruction imensions (Straight) umber SS-- SS-- SS-- ( ( ( Thickness ( ( (. ( (. (.) (. ( ( () (.). (.). (.). () imensions (ngle) Item omponent aterial rade/st Specification andle andle Screw Upper Stem Packing land Locking Screw Locking Plate Lower Stem Packing Ring Packing Packing Washer ody SS/ / SS/ -P/ / PT / RPT / raphite / extended stuffing box with raphite -P/ SS/ umber SS-- SS-- SS-- umber SS-- SS-- SS-- ( ( ( imensions (ngle/replaceable seat) ( ( ( Thickness ( ( (. ( (. () (.) Thickness ( ( (. ( (. (.) ( (. (.) (. () (.) (.) ( ( () (.). (.). (.). (). (.. (.). () Lubricant olybdenum disulfide

13 eedle Valves imensions -way/ on pressure -way/ on pressure -way/ stem manifold imensions (-way/ on pressure) umber SS-- SS-- SS-- ( ( ( Thickness ( ( (. ( (. (.) (. ( ( ( (.). (). (. ( Series, psi ( bar) eatures Tubing sizes available for /", /", /". on-rotating stem and bar stock body design. asy to assemble and replace packing. etal-to-metal seating achieves ideal shutoff, longer stem/seat service lifetime for abrasive flow, excellent corrosion resistance and greater durability for repeated on/off cycles. ylon is the standard packing material, RPT glass, raphite and extended stuffing box with raphite also available. xtended stuffing box with raphite can be operated to ( ). The material of packing gland and upper stem have been selected to achieve reduced handle torque and extended thread cycle life. The material of valve body is SS, the material of lower stem is -P SS. Options for Vee or Regulating stem tips. The location of packing is under the thread of valve stem. The locking device of packing gland is reliable. ive flow patterns are available. Technical ata Tube O in. v Room Temperature psig (bar) Opreating Temperature eedle Valves imensions (-way/ on pressure) umber SS-- SS-- SS-- umber SS-- SS-- SS-- ( ( ( imensions (-way/ stem manifold) ( ( ( Thickness ( ( (. ( ( (. ( (. (.) (. ( (. ( (. () (.) ( (.) (.) (.). (.). (.). (). (.). (. ( Thickness ( (. (.) otes: is the drill dimension of packing gland mounting hole. is the dimension of bracket mounting hole. Panel mounting drill size: " all valves.. is the dimension of stem in closed position.. ll dimensions for reference only and subject to change. or dimensions not shown above, please contact the authorized representative or ITOK roup. / / / ( ( ( otes: The values of v shown are for -way straight valve pattern. The values of v for -way angle pattern will be increase about % (ase on water). xtreme Temperatures ylon is the standard packing material for ITOK Series eedle Valves; RPT glass, raphite and extended stuffing box with raphite also available. ormal eedle valve with ylon packing can be operated from (. ) to ( ). ormal eedle Valve with RPT glass packing can be operated from - (- ) to ( ). ormal eedle Valve with raphite packing can be operated from (-. ) to ( ). xtended stuffing box with raphite packing can be operated from (- ) to ( )., (), (), () - ~ (- ~ )

14 eedle Valves low ata at ( ) umber of turns open Regulating Stem Vee Stem Tip low oefficient v % Standard aterials of onstruction Pressure (psig) Pressure & Temperature (- (- ( - efore ( ) Temperature ( ) () ( () fter ( ) ( ( () ( ( ( () Temperature ( ) When exceeding ( ), use the pink curve as its cold-worked rating for future operating of the components. Pressure (bar) imensions eedle Valves Straight ngle ngle (replaceable seat) imensions (Straight) umber SS-- SS-- SS-- ( ( ( Thickness ( ( (. ( (. (.) ( ( (.) (. ( (.). (). (.). ( Item omponent aterial rade/st Specification andle andle Screw Upper Stem Packing land Locking Screw Locking Plate Packing Ring Packing Packing Washer Lower Stem ody Lubricant SS/ / SS/ / ylon/rpt/raphite/extended stuffing box with raphite -P/ -P/ SS/ olybdenum disulfide imensions (ngle) umber SS-- SS-- SS-- umber SS-- SS-- SS-- ( ( ( imensions (ngle/replaceable seat) ( ( ( Thickness ( ( (. ( (. () (.). (.. (. (. Thickness ( ( (. ( (. (.) ( (. (.) ( (. (. (. (. (. (.). (.). (). (.

15 eedle Valves eedle Valves imensions -way/ on pressure -way/ on pressure -way/ stem manifold Part umber escription SS - - R Series ody aterial SS SS or Series Series S PT(emale) or Series Series S PT(emale) or Series Series or / Series Series Size /" /" /" /" /" /" " R Stem Tips Packing low Patterns Vee Regulating T T PT ylon ( Only) RPT lass raphite extended stuffing box with raphite Straight ngle ngle(replaceable seat) -way/ on pressure -way/ on pressure -way/ stem manifold imensions (-way/ on pressure) umber SS-- ( Thickness ( ( ( (. ( ote: "Part umber escription" is used for composition rules of ITOK product model, not suitable for specific product part number selection, not random combinations. If in doubt, please contact ITOK roup or authorized agent. SS-- ( ( (. ( (.. (. SS-- ( (. (.) (.) (.). ( imensions (-way/ on pressure) umber SS-- SS-- SS-- ( ( ( Thickness ( ( (. ( (. (.) ( (. () (.). (.. (. (. Stem s Two types of stems are offered by ITOK ngineers: Vee and Regulating. oth Vee and Regulating stems are interchangeable on most valves and provide bubble-tight shut-off against liquids and gases. imensions (-way/ stem manifold) umber SS-- SS-- SS-- ( ( ( Thickness ( ( (. ( (. (.) ( (. () (.) (.) (.) otes: is the drill dimension of packing gland mounting hole. is the dimension of bracket mounting hole. Panel mounting drill size: " all valves.. is the dimension of stem in closed position.. ll dimensions for reference only and subject to change. or dimensions not shown above, please contact the authorized representative or ITOK roup. (.). (.. (). ( V Stem The Vee stem is used for direct on-off, metal-to-metal shut-off with quick-opening flow characteristics. Regulating Stem In some applications, more precise flow control is required than is possible with a Vee stem. or these cases, ITOK offers a non-rotating, two-piece regulating stem which can be used for both control and shut-off.