Fixed Opening Pressure Nrvr Silence Stop Stainless Steel Check Valve

• Customization: Available
• Media: Gas
• Temperature: Ordinary Temperature
• Model NO.: check valve
• Material: Stainless Steel
• Connection Form: Thread
• Structure: Thread
• Pressure: High Pressure
• Function: Ddcv Double Lobe, Nrvr Silence, Sfcv Rubber Lobe, Nrvz Silence, Nrvg Silence
• Sealing Form: Bellows Globe Valve
• Flow Direction: Unidirection
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Feature 01: Floating Seals Prevent Contaminants From Affecting
• Working Pressures: up to:414 Bar(6000 Psig)
• Working Temperature: -23℃~204℃ Celsius
• Opening Pressure: 0.02~1.7 Bar(1/3~25 Psig)
• Feature 02: a Variety of Termination and Body Materials Are AV
• Feature 03: Fixed Opening Pressure
• Installation Direction: Can Be Installed in Any Direction
• Inlet Body: 316L
• Lift Head Assembly: Fluorocarbon, FKM Bonded ,316 Stainless Steel/A479
• Lift Head Retaining Ring: 316L Stainless Steel/A240
• Spring Material: 302 Stainless Steel / A313
• O-Ring Material: Fluorocarbon FKM
• Support Ring Material: PTFE/D1710
• Outlet Body Material: 316 Stainless Steel/A479
• Application 01: Gas, Oil, Water
• Transport Package: Standard Export Package
• Specification: 50*20MM
• Trademark: AFKLOK
• Origin: Hunan Province, China
• HS Code: 8481300000

Product Description

Product Parameters

C

CH Series Check valve Technical data
Floating seals prevent contaminants from affecting seals
Working pressures up to:414 bar(6000 psig)
Working Temperature:-23ºC~204ºC
Opening pressure:0.02~1.7 bar(1/3~25 psig) 
A variety of termination and body materials are available
Fixed opening pressure,
can be installed in any direction

Item	Details
Pressure Environment	High Pressure
Functions	Ddcv Double Lobe, Nvrv Silence, Sfev Rubber Lobe, Nvrz Silence, Nvrg Silence
Sealing Type	Bellows Globe Valve
Flow Direction	Unidirection
Standard	ANSI
Applications	Industrial Usage, Water Industrial Usage, Household Usage
Transport Packaging	standard export package
Specification	50*20MM
Trademark	AFKLOK
Place of Origin	Hunan Province, China
Feature 1	Floating seals prevent contaminants fr
Working Pressure	up to 414 bar (6000 psig)
Working Temperature	-23ºC - 204ºC Celsius
Opening Pressure	0.02 - 1.7 bar (1/3 - 25 psig)
Feature 2	A variety of termination and body mat
Feature 3	Fixed opening pressure
Installation Direction	can be installed in any direction
Inlet Body Material	316L
Lift Head Assembly Material	Fluorocarbon, FKM Bonded, 316 Staini
Lift Head Retaining Ring Material	316L stainless steel/A240
Spring Material	302 stainless steel / A313
O - Ring Material	Fluorocarbon FKM
Support Ring Material	PTFE/D1710
Outlet Body Material	316 stainless steel/A479

Certifications

Company Profile

Wofly Group Founded in 2011, Wofly Technology specializes in high-purity fluid control valves and components, and provides integrated gas distribution systems. Our ISO 9001-certified product portfolio-including diaphragm valves, pressure regulators, and precision instrumentation valves-complies with CE, RoHS, and SEMI S2 standards. Engineered for critical applications in semiconductor fabrication, hydrogen energy infrastructure, and photovoltaic manufacturing, our solutions ensure leak-tight performance in ultra-clean environments. With 14-year commitment to advancing gas handling safety, Wofly delivers certified reliability through rigorous quality management systems, supporting global clients in mission-critical industries.

THE GAS DISTRIBUTION MADE BY US FOR OUR CUSTOMER 

our warehouse  

our show room 

customer visting us 

FAQ
1. who are we? We are based in Hunan, China, start from 2011,sell to Domestic Market(50.00%),Southeast Asia(14.00%),North America(8.00%),Northern Europe(8.00%),Eastern Europe(5.00%),South Asia(2.00%),South America(2.00%),Western Europe(2.00%),Southern Europe(2.00%),Central America(2.00%),Mid East(2.00%),Eastern Asia(1.00%),Oceania(1.00%),Africa(1.00%). There are total about 51-100 people in our office.
2. how can we guarantee quality? Always a pre-production sample before mass production; Always final Inspection before shipment;
3.what can you buy from us? Pressure Regulator, Instrumentation Valve, Gas Cabinet, Tube Fitting, Tubing
4. why should you buy from us not from other suppliers? We have a couple of years with professional engineers and dedicated technicians.can provide security products for you
5. what services can we provide? Accepted Delivery Terms: FOB,CIF,EXW; Accepted Payment Currency:USD,CNY; Accepted Payment Type: T/T,L/C,Western Union; Language Spoken:English,Chinese