Air Conditioning & Refrigeration Master Catalog. Catalog CIC /USA April 2003

Transcription

1 Air Conditioning & Refrigeration Master Catalog Catalog CIC /USA April 2003

2 Table of Contents Table of Contents Service Valves Frontseating Valves... page 115 RB01 Series Ball Valves... page 117 Backseating Valves... page 123 RB8 Series Multi-Function Cooling-Only Flare Valves... page 124 RB9 Series Multi-Function Heat-Pump Flare Valves... page 125 Copper... page 126 Soft-Seat Copper... page 127 Brass... page 128 Service and 113

3 Notes 114

4 Technical Information Frontseating Valves Frontseating Valves Parker s Frontseating Valves are used as service valves in split air-conditioning and heat-pump systems. The valves isolate sections of a system for servicing and provide a means for charging refrigerant into a unit. Application Residential split-system air conditioners and heat pumps Agency Approvals U.L. recognized; File No: SA5188 CSA approval; File No. LR Specifications PRODUCT Frontseating Valves Operating Temperature Range F to +250 F (-40 C to +121 C) Operating Pressure Range Vacuum to 750 psi Minimum Burst Pressure 3,000 psi (207 bar) MATERIALS Valve Body Valve Stem Valve Stem Cap Gauge Port Cap or Plastic CONNECTION TYPES AND MATERIALS Sweat Wrought Copper per ASTM-B75, Alloy C12200 SAE 45 Flare MATERIAL COMPATIBILITY** All components, including valve stem seal packaging and O-Rings are compatible with these refrigerants and refrigerant oils: R22 & mineral oil, alkylbenzene oil or polyolester oil R134a, R404a, R407c, R-410a or R507 & polyolester oil Vibration Resistance Complies with UL 109 Corrosion Resistance Complies with ASTM B117 External Leak Rate < 0.1 ounce of R22 refrigerant per year at Operating Pressure Range * Brass Bar per ASTM-B16, Alloy C ** Due to the numerous manufacturers of refrigerant oils and continuous changes of additives, compatibility can not be guaranteed. Please contact Parker for compatibility of refrigerants and refrigerant oils not listed. The simplest of service valves providing basic shut-off, charging, and evacuating capabilities. Captivated stem-design eliminates the traditional retaining ring, reducing the potential for injury. Multiple end-configurations are available, along with assemblies, to meet the unique needs and flow patterns of a unit. Use of a standard Allen wrench provides actuation of the valve. Brass body and copper-connection tubes virtually eliminate corrosion-related problems. Copper-sweat connections provide basic ends for brazing and eliminate the need for flux, simplifying the installation process. Flare connections also available as an alternative to sweat connections. Service and 115

5 Installation Instructions Frontseating Valves Factory Installation Step 1 Attach the valve using the mounting procedure that best suits the application. Clean the tubing to be brazed to the Parker frontseating valve. Step 2 Step 3 After brazing, Step 4 quench the joint with a wet rag to cool the joint and remove any flux residue. Flux the copper tubing and insert into the stub. Flux is not required if a low to zero-silver braze alloy is used. Braze the joint. Due to the extended copper stub the valve does not need to be immersed in water or otherwise cooled during brazing. Install a valve core (part # ) and a valve cap (part # B) on the charge port. Field Installation Install the outdoor and indoor units per the manufacturer s recommendations. Route the copper lines between the units. Step 1 The tubing should Step 2 Wrap a wet rag Step 3 Flux the copper Step 4 After brazing be cut square, so it is round and free of burrs at the connecting ends. Clean the tubing to prevent contaminants from entering the system. around the copper stub before brazing. tubing and insert into the stub. (Flux is not required if a low to zero-silver braze alloy is used.) Braze the joint. quench the joint with a wet rag to cool the joint and remove any flux residue. Step 5 This is not a backseating valve. To open the valve remove the valve cap with an adjustable wrench. Insert a 3/16" or 5/16" hex wrench into the stem. Back out counterclockwise until the valve stem incurs resistance. Step 6 Replace the valve cap finger tight then tighten an additional 1/12 turn or 1/2 hex flat. A metal-to-metal seal is now complete. Complete normal factory recommended procedures. 116

6 Technical Information RB01 Series Ball Valves RB01 Series Ball Valves Parker s RB01 Ball Valves are used as service valves in split air conditioning and heat-pump systems or in commercial refrigeration applications. The valves isolate sections of a system for servicing and provide a means for charging refrigerant into a unit. Application Residential and commercial air conditioning and heat pumps Commercial refrigeration Base Product Part Number RB01 Full-flow design provides low-pressure drop for maximum system performance. One quarter-turn, low-torque actuation allows the valve to be open or closed providing simple and easy servicing. Use of a standard crescent wrench provides simple quarter-turn actuation. Copper-sweat connections provide basic ends for brazing and eliminate the need for flux, simplifying the installation process. Brass body and copper-connection tubes virtually eliminate corrosion-related problems. A unique copper-forming process is used to captivate the valve ball, seals, and spring, eliminating potential leak paths and providing consistent and superior sealing. Pad and post-mounting are available to provide additional support to the valve, if necessary. Multiple end-configurations are available, along with assemblies, to meet the unique needs of a unit. Agency Approvals UL recognized; File No: SA5188 Simple On/Off One quarter-turn, low-torque actuation allows the valve to be fully open or closed providing simple and easy servicing. Corrosion Resistant Brass body and copper connection tubes virtually eliminate corrosion related problems. Reliable A unique copper forming process is used to captivate the valve ball, seals and spring, eliminating potential leak paths and providing consistent and superior sealing. Value-Added Valves can also be supplied as fully tested subassemblies, complete with custom bent copper tubing and other required system components. This translates to fewer braze joints, simplified assembly, and a lower installed cost. Efficient Full-flow design provides lowpressure drop for maximum system performance Easy Installation Copper sweat connections simplify the installation process (eliminating the need for flux and flux-residue cleanup), saving time and money. Pad and post mounting is available if added support is needed. Service and 117

7 Technical Information RB01 Series Ball Valves Specifications PRODUCT RB01 Series Ball Valves Operating -40 F to +250 F (-40 C to +121 C) Temperature Range Operating Vacuum to 750 psi Pressure Range Minimum 3,000 psi (207 bar) Burst Pressure MATERIALS Valve Body Brass per ASTM B16, Alloy C36000 Ball Brass per ASTM B16, Alloy C36000 s Wrought Copper, per ASTM-B75, Alloy C12200 Valve Stem Zinc Plated Steel Valve Stem Seal Neoprene W Type O-Ring Ball Seat Polyphenylene Sulphide Ball Seal PTFE or TFM Valve Stem Cap Brass per ASTM B16, Alloy C36000 Gauge Port Cap Brass per ASTM B16, Alloy C36000 Gauge Port PTFE and Neoprene Valve Seals Mounting Brass per ASTM B16, Alloy C36000 Post or Pad MATERIAL COMPATIBILITY* All components, including valve stem O-Ring seal, ball seat and ball seal, are generally compatible with the following refrigerants and refrigerant oils: R22 & mineral oil, alkylbenzene oil, or polyolester oil R134a, R404a, R407c, R410a or R507 & polyolester oil Vibration Complies with UL 109 Resistance Material Strength Complies with UL207 (Moist Ammonia Test) External Leak Rate < 0.1 ounce of R22 refrigerant per year at 150 psi <0.25 ounce of R22 refrigerant per year at 600 psi with ball closed and valve stem cap removed * Due to the numerous manufacturers of refrigerant oils and continuous changes of additives, compatibility can not be guaranteed. Please contact Parker for compatibility of refrigerants and refrigerant oils not listed. Flow Data Pressure Drop (psi) Pressure Drop (psi) Key: Pressure Drop vs. Mass Flow Refrigerant R22 40 F Saturated Suction with 10 F Superheat Refrigerant Mass Flow (Lbs/Hr) 5/8" Body, 5/8" Copper Sweat s 5/8" Body, 3/4" Copper Sweat s 7/8" Body, 7/8" (Factory) and 1-1/8" (Field) Copper Sweat s 7/8" Body, 7/8" Copper Sweat s 7/8" Body, 3/4" Copper Sweat s 1-1/8" Body, 1-1/8" or 1-3/8" (Factory) and 1-3/8" (Field) Copper Sweat s 1-1/8" Body, 1-1/8" Copper Sweat s Pressure Drop vs. Mass Flow Refrigerant R410a 40 F Saturated Suction with 10 F Superheat Refrigerant Mass Flow (Lbs/Hr) Key: 5/8" Body, 5/8" Copper Sweat s 5/8" Body, 3/4" Copper Sweat s 7/8" Body, 7/8" (Factory) and 1-1/8" (Field) Copper Sweat s 7/8" Body, 7/8" Copper Sweat s 7/8" Body, 3/4" Copper Sweat s 1-1/8" Body, 1-1/8" or 1-3/8" (Factory) and 1-3/8" (Field) Copper Sweat s 1-1/8" Body, 1-1/8" Copper Sweat s 118

8 RB01 Series Ball Valves Pad Mount RB01-031, RB01-032, RB Field Factory Part Numbers No. 1 Mtg Position No. 3 Mtg Position No. 5 Mtg Position Nominal U W Factory Field with Right-Hand Gauge Port with Left-Hand Gauge Port with Left-Hand Gauge Port Body Size A B D F G H J M N P S (Across Flats) V (Across Flats) 3/4" 3/4" 7/ RB RB RB ODS ODS (22.2) (148.6) (64.0) (19.0) (19.0) (15.7) (15.7) (19.0) (34.8) (70.9) (71.9) (42.9) (19.0) (67.8) (42.7) 7/8" 7/8" 7/ RB RB RB ODS ODS (22.2) (148.6) (64.0) (22.4) (22.4) (15.7) (19.0) (22.4) (34.8) (70.9) (71.9) (42.9) (19.0) (67.8) (42.7) 7/8" 1-1/8" 7/ RB RB RB ODS ODS (22.2) (148.6) (64.0) (28.7) (22.4) (15.7) (19.0) (22.4) (34.8) (70.9) (71.9) (42.9) (19.0) (67.8) (42.7) 1-1/8" 1-1/8" 7/ RB RB RB ODS ODS (22.2) (137.2) (64.0) (28.7) (22.4) (15.7) (15.7) (28.7) (34.8) (59.4) (60.4) (42.9) (19.0) (67.8) (42.7) All dimensions in inches (mm) Service and 119

9 RB01 Series Ball Valves Post Mount RB01-034, RB01-035, RB Field Factory Part Numbers No. 1 Mtg Position No. 3 Mtg Position No. 5 Mtg Position Nominal U W with Right-Hand with Left-Hand with Left-Hand Body (Across (Across Factory Field Gauge Port Gauge Port Gauge Port Size A B D F G H J M N R S Flats) V Flats) 5/8" 5/8" 5/ RB RB RB ODS ODS (15.9) (148.8) (64.3) (16.0) (15.7) (12.7) (12.7) (16.0) (38.1) (71.4) (20.3) (39.4) (19.0) (58.4) (33.3) 3/4" 3/4" 5/ RB RB RB ODS ODS (15.9) (148.8) (64.3) (19.0) (19.0) (15.7) (15.7) (19.0) (38.1) (71.4) (20.3) (39.4) (19.0) (58.4) (33.3) 3/4" 3/4" 7/ RB RB RB ODS ODS (22.2) (148.6) (64.0) (19.0) (19.0) (15.7) (15.7) (19.0) (34.8) (70.9) (15.7) (42.9) (19.0) (67.8) (42.7) 7/8" 7/8" 7/ RB RB RB ODS ODS (22.2) (148.6) (64.0) (22.4) (22.4) (15.7) (19.0) (22.4) (34.8) (70.9) (15.7) (42.9) (19.0) (67.8) (42.7) 7/8" 1-1/8" 7/ RB RB RB ODS ODS (22.2) (148.6) (64.0) (28.7) (22.4) (15.7) (19.0) (22.4) (34.8) (70.9) (15.7) (42.9) (19.0) (67.8) (42.7) 1-1/8" 1-1/8" 7/ RB RB RB ODS ODS (22.2) (137.2) (64.0) (28.7) (22.4) (15.7) (15.7) (28.7) (34.8) (59.4) (15.7) (42.9) (19.0) (67.8) (42.7) 1-1/8" 1-1/8" 1-1/ RB RB RB ODS ODS (28.6) (203.2) (90.4) (28.7) (28.4) (19.0) (19.0) (28.7) (55.6) (91.4) (15.7) (56.1) (23.9) (80.5) (50.8) 1-1/8" 1-3/8" 1-1/ RB RB RB ODS ODS (28.6) (203.2) (90.4) (35.1) (28.4) (19.0) (19.0) (28.7) (55.6) (91.4) (15.7) (56.1) (23.9) (80.5) (50.8) 1-3/8" 1-3/8" 1-1/ RB RB RB ODS ODS (28.6) (201.2) (90.4) (35.1) (28.4) (19.0) (19.0) (35.1) (55.6) (89.4) (15.7) (56.1) (23.9) (80.5) (50.8) All dimensions in inches (mm) 120

10 RB01 Series Ball Valves No Mount RB Field Factory Nominal U W Body (Across (Across Factory Field Part Numbers Size A B D F G H J M N S Flats) V Flats) 5/8" 5/8" 5/ RB ODS ODS (15.9) (148.8) (64.3) (16.0) (15.7) (12.7) (12.7) (16.0) (38.1) (71.4) (39.4) (19.0) (58.4) (33.3) 3/4" 3/4" 5/ RB ODS ODS (15.9) (148.8) (64.3) (19.0) (19.0) (15.7) (15.7) (19.0) (38.1) (71.4) (39.4) (19.0) (58.4) (33.3) 3/4" 3/4" 7/ RB ODS ODS (22.2) (148.6) (64.0) (19.0) (19.0) (15.7) (15.7) (19.0) (34.8) (70.9) (42.9) (19.0) (67.8) (42.7) 7/8" 7/8" 7/ RB ODS ODS (22.2) (148.6) (64.0) (22.4) (22.4) (15.7) (19.0) (22.4) (34.8) (70.9) (42.9) (19.0) (67.8) (42.7) 7/8" 1-1/8" 7/ RB ODS ODS (22.2) (148.6) (64.0) (28.7) (22.4) (15.7) (19.0) (22.4) (34.8) (70.9) (42.9) (19.0) (67.8) (42.7) 1-1/8" 1-1/8" 7/ RB ODS ODS (22.2) (137.2) (64.0) (28.7) (22.4) (15.7) (15.7) (28.7) (34.8) (59.4) (42.9) (19.0) (67.8) (42.7) 1-1/8" 1-1/8" 1-1/ RB ODS ODS (28.6) (203.2) (90.4) (28.7) (28.4) (19.0) (19.0) (28.7) (55.6) (91.4) (56.1) (23.9) (50.8) 1-1/8" 1-3/8" 1-1/ RB ODS ODS (28.6) (203.2) (90.4) (35.1) (28.4) (19.0) (19.0) (28.7) (55.6) (91.4) (56.1) (23.9) (80.5) (50.8) 1-3/8" 1-3/8" 1-1/ RB ODS ODS (28.6) (201.2) (90.4) (35.1) (28.4) (19.0) (19.0) (35.1) (55.6) (89.4) (56.1) (23.9) (80.5) (50.8) All dimensions in inches (mm) Service and 121

11 Ordering Information RB01 Series Ball Valves Available Options Available Options Mounting Pad Mount, Post-Stud Mount Type: or No Mount Gauge Port Left-Hand Gauge Port with Location: Mounting Positions 2-5 Right-Hand Gauge Port with Mounting Positions 1-4 Ship Ball Open or Ball Closed* Position: Gauge Port or Plastic Cap: * Provided with standard product offering Gauge Port Locations Viewed from the Field How to Order RB01 Product Series 019 Unique Features 12 Factory 10 Body Size 12 Field Customized to mounting and gauge-port specifications Factory (Denoted xx/16) 10 = 5/8" 12 = 3/4" 14 = 7/8" 18 = 1-1/8" 22 = 1-3/8" Body Size (Denoted xx/16) 10 = 5/8" 14 = 7/8" 18 = 1-1/8" Field (Denoted xx/16) 10 = 5/8" 12 = 3/4" 14 = 7/8" 18 = 1-1/8" 22 = 1-3/8" 122

12 Technical Information Backseating Valves Backseating Valves Parker s Backseating Valves are used as service valves in air-conditioning and heat-pump systems. The valves isolate sections of a system for servicing and provide a means for charging refrigerant into a unit. Application Residential split-system air conditioners and heat pumps PRODUCT Backseating Valves Operating Temperature Range F to +250 F (-40 C to +121 C) Operating Pressure Range Vacuum to 750 psi Minimum Burst Pressure 3,000 psi (207 bar) MATERIALS Valve Body Machined or Forged Valve Stem Nickel-Plated Carbon Steel or 316L Stainless Steel Valve Stem Cap Valox Cap with Neoprene "W" Gasket or Cap Gauge Port Cap Valox Cap with Neoprene "W" Gasket or Cap VALVE STEM SEAL MATERIALS Packing Nut Packing Composite (Arimid, Neoprene and TFE) O-Ring Neoprene "W" CONNECTION TYPES AND MATERIALS Sweat or Wrought Copper per ASTM-B75, Alloy C12200 SAE 45 Flare RTS or 316L Stainless Steel MATERIAL COMPATIBILITY** All components, including valve stem seal packaging and o-rings are compatible with these refrigerants and refrigerant oils: R22 & mineral oil, alkylbenzene oil or polyolester oil R134a, R404a, R407c, R-410a or R507 & polyolester oil Vibration Resistance Complies with UL 109 Corrosion Resistance Complies with ASTM B117 External Leak Rate < 0.1 ounce of R22 refrigerant per year at Operating Pressure Range Valox is a federally registered trademark of the General Electric Company. + Frontseat maximum operating temperature for 1-3/8" valve body is +210 F (+99C) * Brass Bar per ASTM-B16, Alloy C ** Due to the numerous manufacturers of refrigerant oils and continuous changes of additives, compatibility can not be guaranteed. Please contact Parker for compatibility of refrigerants and refrigerant oils not listed. Precision machining of the stem and valve seats, as well as composite packing or o-ring stem seals, translates into reliable and repeatable sealing. Isolated chargeport minimizes refrigerant loss during servicing. Brass body and copper connection tubes virtually eliminate corrosion-related problems. Copper-sweat connections provide basic ends for brazing and eliminate the need for flux, simplifying the installation process. Multiple end configurations are available, along with assemblies, to meet the unique needs and flow patterns of a unit. Service and 123

13 Technical Information RB8 Series Multi-Function Cooling-Only Flare Valves RB8 Series Multi-Function Cooling-Only Flare Valves Parker s RB8 Multi-Function Flare Valves are used as service valves in mini-split air conditioners. The valves isolate sections of a system for servicing and provide a means for charging refrigerant into a unit. The valve also holds a restrictor and screen to meter refrigerant and filter debris, increasing system efficiency. Application Mini-split air conditioners Base Product Part Number RB8 Inclusion of a restrictor into the valve provides precise refrigerant metering to increase efficiency. Noise and vibration through the unit are reduced by inclusion of the restrictor into the valve. Inclusion of a screen into the valve filters dirt and debris prior to entering the restrictor, maintaining full flow and enhancing performance. Captivated stem-design holds the stem within the valve to prevent it from releasing when the cap is removed or the unit is serviced, reducing the potential for injury. Combined functionality of valve, restrictor, and screen reduces component inventory (shut-off valve, field-access gage port, expansion device, filter screen or strainer, line-set connector, check valve, by-pass circuit, and capillary tubes) leading to a reduction in overall installed cost. Combined functionality of valve, restrictor, and screen also reduces space requirements within a unit and eliminates braze joints to reduce potential leaks paths. Patent-pending. Agency Approvals Pending UL approval. Flow Data Available upon requested application. Specifications PRODUCT RB8 Series Valves Operating Temperature Range -40 F to +250 F (-40 C to +121 C) Ambient Operating Temperature -40 F to +250 F (-40 C to +121 C) Operating Pressure Range Vacuum to 750 psi (52 bar) + Minimum Burst Pressure 3,750 psi (259 bar) + MATERIALS Valve Body s Refrigeration Grade Copper, per ASTM-B75, Alloy C12200 Valve Stem Valve Stem Seal Neoprene W or HNBR O-Ring Valve Stem Cap Gauge Port Cap or Plastic with Neoprene W or HNBR O-Ring Seal Gauge Port Valve Seals Neoprene & Teflon or HNBR & Teflon Seals MATERIAL COMPATIBILITY** Neoprene R22 & mineral oil, alkylbenzene oil or polyolester oil R134a, R404a, R407c, R-410a or R507 & polyolester oil HNBR R-410a & polyvinylether oil or Hard Alkylbenzene oil Vibration Resistance Complies with UL 109 External Leak Rate < 0.1 ounce of R410a refrigerant per year at Operating Pressure Range Teflon is a federally registered trademark of E.I. du Pont de Nemours and Company. + Pending UL testing and approval. Tests performed by Parker indicate that operating and burst pressures can be achieved. * Brass Bar per ASTM-B16, Alloy C ** Due to the numerous manufacturers of refrigerant oils and continuous changes of additives, compatibility cannot be guaranteed. Please contact Parker for compatibility of refrigerants and refrigerant oils not listed. 124

14 Technical Information RB9 Series Multi-Function Heat-Pump Flare Valves RB9 Series Multi-Function Heat-Pump Flare Valves Parker s RB9 Multi-Function Flare Valves are used as service valves in mini-split heat pumps. The valves isolate sections of a system for servicing and provide a means for charging refrigerant into a unit. The valve also holds a restrictor and screen to meter refrigerant and filter debris, increasing system efficiency. Application Mini-split heat pumps Base Product Part Number RB9 Inclusion of a restrictor into the valve provides precise refrigerant metering to increase efficiency. Noise and vibration through the unit are reduced by inclusion of the restrictor into the valve. Inclusion of a screen into the valve filters dirt and debris prior to entering the restrictor, maintaining full flow and enhancing performance. Captivated stem-design holds the stem within the valve to prevent it from releasing when the cap is removed or the unit is serviced, reducing the potential for injury. Combined functionality of valve, restrictor, and screen reduces component inventory (shut-off valve, field-access gage port, expansion device, filter screen or strainer, line-set connector, check valve, by-pass circuit, and capillary tubes) leading to a reduction in overall installed cost. Combined functionality of valve, restrictor, and screen also reduces space requirements within a unit and eliminates braze joints to reduce potential leaks paths. Patent-pending. Agency Approvals Pending UL approval. Flow Data Available upon requested application. Specifications PRODUCT RB9 Series Valves Operating Temperature Range -40 F to +250 F (-40 C to +121 C) Ambient Operating Temperature -40 F to +250 F (-40 C to +121 C) Operating Pressure Range Vacuum to 750 psi (52 bar) + Minimum Burst Pressure 3,750 psi (259 bar) + MATERIALS Valve Body s Refrigeration Grade Copper, per ASTM-B75, Alloy C12200 Valve Stem Valve Stem Seal Neoprene W or HNBR O-Ring Valve Stem Cap Gauge Port Cap or Plastic with Neoprene W or HNBR O-Ring Seal Gauge Port Valve Seals Neoprene & Teflon or HNBR & Teflon Seals MATERIAL COMPATIBILITY** Neoprene R22 & mineral oil, alkylbenzene oil or polyolester oil R134a, R404a, R407c, R-410a or R507 & polyolester oil HNBR R-410a & polyvinylether oil or Hard Alkylbenzene oil Vibration Resistance Complies with UL 109 External Leak Rate < 0.1 ounce of R410a refrigerant per year at Operating Pressure Range Teflon is a federally registered trademark of E.I. du Pont de Nemours and Company. + Pending UL testing and approval. Tests performed by Parker indicate that operating and burst pressures can be achieved. * Brass Bar per ASTM-B16, Alloy C ** Due to the numerous manufacturers of refrigerant oils and continuous changes of additives, compatibility cannot be guaranteed. Please contact Parker for compatibility of refrigerants and refrigerant oils not listed. Service and 125

15 Technical Information and Copper Check valves are designed to allow flow in one direction only. They are used to prevent backwards flow through dryers and other devices that are designed for directional flow. Copper Ball Parker's Copper Ball are used in refrigeration and air conditioning systems to maintain flow in only one direction. Internal components seat or check, preventing flow back through the valve. These products are often used in conjunction with dryers or strainers to ensure unidirectional flow, with compressors to prevent liquid refrigerant from flooding back to the inlet, or in system lines to redirect flow to another circuit. Application Refrigeration and air conditioning systems. Stainless steel ball is contained in a one-piece brass retainer within a copper tube to provide corrosion resistance and durability. Straight-flow design yields high flow for maximum system performance. Standard ball valves offer stainless steel-to-brass seating for low refrigerant leakage. Sweat connections in a variety of sizes provide for easy installation and simplified brazing. Spring-loaded designs are also available for near horizontal mounting applications. Seal Plug Roll Groove Steel Ball Ball Cylinder Copper Tube Female System Sweat Overall Cutout Body UL Connect Length Length Dia. 1 psi pressure drop Model No. Model in. in. in. in a 401A/B 401C 402A 402B 404A 407A 407B 407C 410A A CV4-6FS-6FS 3/8F 3/ / CV5-8FS-8FS 1/2F 1/ / CV7-10FS-10FS 5/8F 5/ / CV9-14FS-14FS 7/8F 7/ CV11-18FS-18FS 1 1/8F * Rated at 86 F liquid/5 F evaporator 126

16 Technical Information and Soft-Seat Copper Soft-Seat Copper Parker's Soft-Seat Copper are used in refrigeration and air conditioning systems to maintain flow in only one direction. Internal components seat or check, preventing flow back through the valve. These products are often used in conjunction with dryers or strainers to ensure unidirectional flow, with compressors to prevent liquid refrigerant from flooding back to the inlet, or in system lines to redirect flow to another circuit. Application Refrigeration and air conditioning systems. Soft-seat valve features a Neoprene o-ring that seals to a metal seat for low refrigerant leakage (10cc/min. compared to traditional check valves with 750 cc/min.). Brass piston seat and steel piston provide corrosion resistance and durability. Sweat connections in a variety of sizes provide for easy installation and simplified brazing. Plastic Plug O-ring Ball Seat 3.50" overall length Piston and O-Ring Baffle Female System Sweat Overall Cutout Body UL Connect Length Length Dia. Flow Part No. Model in. in. in. in. 1 psi pressure drop PCV525 5/ PCV525 3/ TBD PCV525 1/ Service and 127

17 Technical Information and Brass 1/4" Brass Check Valve Poppet style valve incorporates o-ring sealing surface. Brass body and piston resist corrosion. Stainless steel spring resists corrosion. Braze connections. 3/8" Brass Check Valve Poppet style valve incorporates o-ring sealing surface. Brass body and piston resist corrosion. Stainless steel spring resists corrosion. Braze connections. 128

18 Technical Information and Brass 1/8" NPT Brass Check Valve Poppet style valve incorporates o-ring sealing surface. Brass body and piston resist corrosion. Stainless steel spring resists corrosion. Female NPT threaded connections. Service and 129

19 Notes 130