Are you facing challenges such as unstable pressure regulation for high-pressure gases, contamination and leakage of high-purity gases, valve damage caused by corrosive or toxic gases, valve malfunction under high- or low-temperature conditions, poor sealing in clean piping installations, limited space for equipment installation, safety risks from gas leaks and high valve wear and tear, and high operation and maintenance costs?

We can address the following issues:
1. Unstable high-pressure regulation
Supports inlet pressures up to 3,500 psig, with multi-stage precise pressure regulation to ensure a stable gas flow, preventing damage to downstream equipment due to overpressure and deviations in process data.
2. High-purity gas contamination / leakage
Curved, dead-space-free flow paths combined with electrolytic polishing for low surface roughness ensure an extremely low helium leak rate, eliminating particulate contamination, gas leakage, and air ingress—ideal for high-purity semiconductor applications.
3. Corrosion / Damage from Toxic Gases
316L valve body + Hastelloy diaphragm + PCTFE valve seat provide resistance to highly corrosive specialty gases, reducing the cost of frequent valve replacements.
4. Failure in High- and Low-Temperature Environments
Operates over a wide temperature range of -40°C to 74°C; does not seize at low temperatures and maintains seal integrity at high temperatures.
5. Difficult Installation in Clean Piping Systems
Standard 1/4 VCR welded connections enable seamless integration with high-purity piping systems, with a leakage risk far lower than that of ordinary ferrule fittings.
6. Limited Equipment Installation Space
Single-stage compact design with a small footprint, suitable for tight installation spaces in instruments and equipment.
7. High Safety and O&M Costs
Prevents leaks of toxic and flammable gases to avoid safety incidents; corrosion resistance and long service life reduce downtime for maintenance and spare part consumption.

WR1000 Single-Stage Hastelloy Diaphragm High-Purity Pressure-Reducing Valve, 316L stainless steel valve body, electrolytically polished flow path (Ra 0.25 μm), EP ultra-high-purity cleaning; extremely low helium leakage, suitable for semiconductor and laboratory applications involving corrosive and toxic specialty gas piping, supports various VCR connections and panel mounting.
The WR1000 Series single-stage diaphragm-type high-purity pressure-reducing valve is designed for ultra-high-purity gas delivery applications. It features a Hastelloy diaphragm and a curved, dead-zone-free flow path design, making it easy to purge and ensuring extremely low particle shedding; The valve body is available in either 316L stainless steel or Hastelloy C276, making it fully compatible with high-purity inert gases, corrosive gases, and toxic specialty gases. It is widely used in gas distribution systems for the semiconductor, photovoltaic, new energy, and scientific research laboratory industries.
Advantages of EP Grade Pressure Regulator:
1. excellent sealing: VCR fittings provide highly reliable sealing to prevent gas or liquid leakage, which is critical in applications where sealing is critical.
2. high cleanliness: its design helps to reduce the accumulation of impurities and contaminants, to ensure the purity of the media flowing through the regulator, suitable for the strict requirements of the media purity of the industry, such as semiconductor manufacturing, pharmaceuticals and so on
3. easy installation and removal: the structure of the VCR fitting makes the installation and removal process relatively simple and fast, saving operating time and labor costs
4. strong stability: can be used in the long-term to maintain a stable connection performance, reduce the connection problems caused by unstable pressure regulation
5. Good corrosion resistance: usually made of corrosion-resistant materials, able to maintain good performance in harsh chemical environments
6. standardization and compatibility: in line with specific industry standards, and other related equipment and components have good compatibility, easy system integration and expansion.

| item | value |
| Warranty | 1 Year |
| Customized support | OEM, ODM |
| Place of Origin | China Guangdong |
| Brand Name | AFKLOK |
| Model Number | R11-VCR |
| Type | Pressure Regulators |
| Material | SS316 |
| Size | 1/4'' 1/2'' OD VCR |
| Product name | Ultrahigh Purity VCR Pressure Regulators |
| Suitable gas | Oxyen/Acetlene/Propane/Nitrogen/Co2 |
| Application | Laboratory |
| Inlet connection | 1/4'' 1/2'' OD VCR |
| Outlet Connection | 1/4'' 1/2'' OD VCR |
| Inlet Pressure | 600psig, 3500psig |
| Outlet pressure | 0~30, 0~60, 0~100, 0~150, 0~250, 0~500 |
Maximum Inlet Pressure: 600 PSIG / 3500 PSIG (optional)
Outlet Pressure Regulation Range: 0–30 / 0–60 / 0–100 / 0–150 / 0–250 PSIG
Valve Body Material: 316L Stainless Steel (6L) / Hastelloy C-276 (HC)
Seat: PCTFE | Diaphragm: Hastelloy
Operating Temperature: -40°C to +74°C
Flow Coefficient Cv: 0.20 (600 PSIG inlet); 0.09 (3500 PSIG inlet)
Cleaning Standard: EP Ultra-High-Purity Cleaning
Standard Ports: 1/4" VCR, various fittings available
Max Inlet Pressure |
600psig, 3500psig |
Outlet Pressure Range |
0~30, 0~60, 0~100, 0~150, 0~250, 0~500 |
Component Material |
Seat:PCTFE
Diaphragm:Hastelloy
Filter mesh:316L
|
Working Temperature |
-40℃~+74℃(-40℉~+165℉) |
Leak Rate (Helium) |
Internal: ≤1×10-7 mbar l/s
External:≤1×10-9 mbar l/s
|
Flow Coefficient(Cv) |
3500psig Inltet:Cv=0.09
600psig Inltet:Cv=0.20
|
Body Thread |
Inlet port:1/4NPT (EP 1 / 4 VCR optional)
Outlet port:1/4NPT (EP 1 / 4 VCR optional)
Pressure gauge port:1/4NPT (EP 1 / 4 VCR optional)
|
| 6L | 35 | 100 | D | 00 M M 00 | Z | O2 |
| Body Material | Inlet Pressure P1 | Outlet Pressure Range P2 | Porting | Connection 1/2/3/4 | Optional Feature | Product Grade |
| 6L:316L SS | 35:3500 psig | 30:0~30 psig | A:2 ports | 00:1/4" Female NPT | None |
Standard(BA) |
| HC:Hastelloy C-276 | 06:600 psig | 60:0~60 psig | B:3 ports | 01:1/4" Male NPT | Z:With a panel nut | O2:Oxygen cleaning |
| 100:0~100 psig | D:4 ports | 10:1/4" OD | ||||
| 150:0~150 psig |
Other ports are
available upon
request
|
11:3/8" OD | ||||
| 250:0~250 psig | 20:1/4" OD diaphragm valve | |||||
| 500:0~500 psig | 21:3/8" OD diaphragm valve | |||||
| FR4:1/4 "female VCR | ||||||
| RMR4:1/4 "male VCR | ||||||
| M:With gauge (psi/MPa) | ||||||
| C:CGA NO(USA) | ||||||
| DIN:DIN NO(DEU) | ||||||
|
Refer to the manual for cylinder
connections. Other connections
are available upon request
|
Installation Precautions:
1. Clean environment: Installation should be done in a clean environment to avoid contamination of the fitting and the inside of the regulator by dust, impurities, etc
2. Inspection of components: Before installation, carefully inspect each component of the pressure regulator and VCR fitting to ensure that there is no damage, deformation or defect
3. correct selection: according to the actual working pressure, media characteristics and flow requirements, select the appropriate specifications and models of the pressure regulator and VCR fittings.
4. installation direction: follow the product specification to ensure the correct installation direction
4. Installation direction: Follow the installation direction specified in the product manual to ensure that the regulator works properly
5. sealing gasket: make sure to use the appropriate sealing gasket, and check its integrity and quality
6. Tightening strength: When connecting VCR fittings, use appropriate torque tools and tighten the nuts according to the specified torque values to avoid over-tightening or over-loosening which may cause leakage or damage
7. Anti-loosening measures: Take necessary anti-loosening measures, such as using anti-loosening washers or applying anti-loosening glue
8. Pipe cleaning: The inside of the connected pipes should be cleaned to prevent foreign matter from entering the regulator
9. Pre-charging media: For some special media, it may be necessary to pre-charge the regulator before installation.
10. Post-installation inspection: After installation, perform a sealing test to check for leaks and to verify that the pressure regulation is functioning properly
Wofly
Introducing the AFKLOK High Pressure 3500 psi 316 stainless steel Single Stage Pressure Regulators Ultrahigh Purity 1/4'' 1/2'' OD VCR Regulator brought to you by Wofly. Designed to provide accurate and reliable pressure control in high-pressure applications
Constructed from 316 stainless steel. Built to withstand even the harshest environments. Wofly it is also ultrahigh purity meaning it is free from contaminants and particulates that can compromise the integrity of your system. With a maximum pressure of 3500 psi this regulator is capable of providing precise pressure control in even the most demanding applications
Easy to use. It features a simple single-stage design that allows for quick and easy adjustments to your system's pressure. The 1/4'' and 1/2'' OD VCR connections make installation a breeze while the compact size ensures that the regulator can be easily integrated into your existing system
The ideal choice for any high-pressure application. Whether you're working in the oil and gas industry pharmaceuticals or any other application that requires accurate pressure control this regulator is sure to exceed your expectations
Experience the difference for yourself today. Get this now
Our friendly team would love to hear from you!