Main Structure Materials | ||
No. | Component | Material |
1 | Valve Body | Stainless Steel 316L |
2 | Valve Seat | PCTFE (Polychlorotrifluoroethylene) |
3 | Diaphragm | Hastelloy |
4 | Filter Element | 316L Stainless Steel |
Specification | |
Maximum inlet pressure | 3000psig/4500psig |
Outlet pressure range | 0~30,0~60,0~100,0~150,0~250psig |
Working temperature | -40ºC~+74ºC(-40ºF~+165ºF) |
Leakage rate(Helium) | Internal : ≤1×10^-7 mbar.l/s External : ≤1×10^-9 mbar.l/s |
Flow coefficient | Cv=0.05 |
Valve body port | Inlet:1/4NPT thread Outlet:1/4NPT thread |
Pressure gauge port | 1/4NPT thread |
Product Features
1. Double stage type diaphragm structure.2. The corrugated diaphragm design provides excellent sensitivity and longevity.
3. Can be used for corrosive and toxic gases.
4. A 20um filter element is installed at the inlet.
5. Oxygen environment application is optional.



Package and Delivery
Export packing standard:Double plastic bags with internal vacuum and external plastic sealing+corrugated carton+ cardboard boxes+wooden palletSelling Units:Single item
Single package size:26X 26 X 26 cm
Single gross weight:1.50 kg
1. Clean process:The cleaning and packaging of products conform to ASTM G93 C standard.
2. What you see is what you get: What you see in our product pictures is exactly what you receive-the true embodiment of high-quality technology.
3. Surface roughness:Wofly's EP-grade product Surface roughness reached Ra 0.13 um ,BA-grade product Surface roughness reached Ra 0.25 um.
4. Purity applications: BA-grade products can be applied to gases below 6N purity,EP-grade products can be applied to 9N purity gases.
5. Compact design:Unlike other heavy and oversized valves, which take up too much space, our valves and fittings are compact in design and easy to operate.

FAQ
1. valve body:SEMI standard 316L rod, 316L VAR and 316L VIM-VAR are optional.
2. diaphragm strip:Hastelloy and nickel-cobalt alloy imported from the United States or Europe .
3. valve seat:PCTFE, PFA.
14. How to manage and control produce process ?
A: 1. Wofly strictly obeys ISO9001-2015 quality management system.
2.The ultrasonic cleaning, welding, assembly, testing and packaging of the valve are completed in the clean workshop.
3.Each process is monitored, tested and recorded by the quality Department specialist to ensure the reliability of each process index.
15. Can after-sales service and technical consultation be provided in time?
A:Technical services are available 24H/D.Our technical team can provide technical services for pre-sale, after-sale, installation and research and development of new products.
