- Guangxi COHO Electromechanical Co. Ltd..
- China Manufacturer with main products:Stop valves ,Danfoss valves ,EMERSON valves ,Servo Valves ,Pressure Sensor ,Level Switch ,Check Valves ,Motor Operated Valves ,Liquid Level Sensor ,Liquid Level Regulating Valves ,Solenoid Valves ,Electric Expansion Valves
Home > Products > Check Valves > Danfoss Check valves Type NRVA15-20 NRVA32-40 NRVA50-65D
Danfoss Check valves Type NRVA15-20 NRVA32-40 NRVA50-65D
- 105 Unit / Units per Month
- Guangzhou
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- 3 days
Product Details
Brand Name: | Danfoss | Place of Origin: | China | Model Number: | NRVA15-20,NRVA32-40,NRVA50-65D |
Material: | Stainless Steel | Application: | General | Structure: | Shutoff |
Standard or Nonstandard: | Standard | Pressure: | Medium Pressure | Power: | Pneumatic |
Port Size: | 15-65mm | Media: | Gas | Temperature of Media: | Normal Temperature |
Product Description
Danfoss Check valves Type NRVA15-20 NRVA32-40 NRVA50-65D product introduction
Check valve type NRVA can be used in liquid,suction and hot gas lines in refrigeration and air conditioning plant with ammonia.NRVA can also be used in refrigerating systems with fluorinated refrigerants.When the NRVA is used in liquid lines where cold, thick oil or impurities may be present, it is recommended that the standard spring be replaced by a special spring. See ordering table.
Danfoss Check valves Type NRVA15-20 NRVA32-40 NRVA50-65D Features
• Ensures correct direction of flow.
• Valve housing made of steel.
• Available for 40 bar g / 580 psig working pressure.
• Large range of flanges with connection dimen-sions in accordance with standards: DIN, ANSI,SOC, SA and FPT.
• Fitted with damping piston that makes the valves suitable for installation in lines where pulsation can occur, e.g. in the discharge line from the compressor.
• Classification: DNV, CRN, BV, EAC etc. To get an updated list of certification on the products please contact your local Danfoss Sales Company.
Danfoss Check valves Type NRVA15-20 NRVA32-40 NRVA50-65D Design
Connections
There is a very wide range of connection possibilities with NRVA check valves:
• Welding, DIN (2448)
• Welding, ANSI (B 36.10)
• Welding socket, ANSI (B 16.11)
• Solder connection, DIN (2856)
• Solder connection, ANSI (B 16.22)
• FPT internal thread, NPT(ANSI/ASME B 1.20.1)
Gaskets:
Do not contain asbestos.
Valve cone:
The valve cone has a teflon tightening ring.Teflon tightening ring renders perfect sealing at a minimum closing force.
Danfoss Check valves Type NRVA15-20 NRVA32-40 NRVA50-65D Technical data
• Refrigerants
Applicable to HCFC, HFC and R717 (Ammonia).
For further information please see installation
instruction for NRVA.
Use with flammable hydrocarbons cannot be
recommended; please contact Danfoss.
• Temperature range
-50 – 140 °C / -58 – 284 °F.
• Pressure range
The valve is designed for:
Max. working pressure: 40 bar g / 580 psig.
Contact Us
- Guangxi COHO Electromechanical Co. Ltd..
- Contact nameko
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