Diaphragm valve is a type of valve that uses a flexible diaphragm to regulate the flow of fluids.When the valve is open, the diaphragm is lifted off the seat, allowing fluid to flow through the valve. When the valve is closed, the diaphragm is pressed against the seat, cutting off the flow of fluid.easy to clean, have no dead spaces where fluids can accumulate, and can be used in applications where contamination must be avoided.
Diaphragm valves are also used in applications where the fluid being handled is corrosive or abrasive.
1/4 inch VCR 316L EP diaphragm valve with a low pressure rating of 150psi is a reliable and precise valve that is suitable for use in a variety of low-pressure applications, particularly those in the semiconductor and biopharmaceutical industries. | ![]() |
![]() | Port Size | 1/4", 3/8" |
Flow coefficient (Cv) | 0.27 | |
Inner diameter | 0.16 in. (4.1 mm) | |
Maximum working pressure | 10 bar (150 psig) | |
Pneumatic actuator working pressure | 4.2~6.2 bar (60~90 psig) | |
Working temperature | PCTFE:-23~65℃(-10~150℉) PFA:-23~150℃(-10~302℉) | |
Leak rate (helium) | Internal ≤1×10-9 mbar l/s External ≤1×10-9 mbar l/s |
No. | Component | Material | ![]() |
1 | Handle | Aluminum | |
2 | Actuator | Aluminum | |
3 | Valve Stem | 304 SS | |
4 | Valve Cap | S17400 | |
5 | Bonnet Nut | 316 SS | |
6 | Button | 316 SS | |
7 | Diaphragm (2) | Nickel-Cobalt Alloy | |
8 | Valve Seat | PCTFE or PFA | |
9 | Valve Body | 316L SS or 316L VAR 316L VIM-VAR |
Basic Order Number | Port Type and Size | Size in.(mm) | |||
WV4-6L-TW4- | 1/4" Tube butt weld fittings | 0.44 (11.2) | 0.30 (7.6) | 1.06 (26.9) | 1.74 (44.2) |
WV4-6L-TW6- | 3/8"Tube butt weld fittings | 0.44 (11.2) | 0.26 (6.6) | 1.06 (26.9) | 1.74 (44.2) |
WV4-6L-FR4- | 1/4" Female thread MCR fitting | 0.44 (11.2) | 0.86 (21.8) | 1.06 (26.9) | 2.78 (70.6) |
WV4-6L-MR4- | 1/4"Integral male thread MCR fitting | 0.44 (11.2) | 0.62 (15.7) | 1.06 (26.9) | 2.24 (57.0) |
Foreign Exhibitions
Applicable Scenarios
FAQ
Q1: what kinds of stainless steel are most commonly used?
A1. 201 stainless steel is suitable for use in dry explosion environment. It is easy to rust in water
A2. 304 stainless steel, outdoor or humid environment, strong corrosion resistance and acid resistance.
A3. 316 stainless steel, molybdenum added, more corrosion resistance and pitting corrosion resistance, especially suitable for seawater and chemical media.
Q2. how can we guarantee quality?
A1: Strictly in accordance with the ISO9001 standard, the products have passed the A2.CE/ROHS/EN certification
Always a pre-production sample before mass production;Always final Inspection before shipment;
Q3. what can you buy from us?
A3. pressure regulator,pressure gauges, Tube fittings,solenoid valve,Needle valve,check valve ect.
Q4. What’s the MOQ?
A4: All products are in stock, MOQ is 1 pcs, Generally according to the requirements of customers, no matter.
Q5. what services can we provide?
A1. Accepted Delivery Terms: FOB,CIF,EXW;
A2. Accepted Payment Currency:USD,CNY;
A3. Accepted Payment Type: T/T,L/C,Western Union;
A4. Language Spoken:English,Chinese
Q6. How long will the shipment take?
A6: If it's express, it will take 3~7days.If it by sea,it will take about 20~30days.
Q7. If any question when I got the product,how to solve it?
A7: The product have warranty and we will offer you the online or video technical support.