A961, 3/16" Hose Barb Diaphragm Check Valve

3/16" Hose Barb Diaphragm Check Valve, Fluorosilicone Diaphragm, Natural & Black Nylon Body

A highly reliable, normally open diaphragm check valve that can be installed in any position. This allows the greatest flexibility when you need backflow protection for a vacuum, gas or liquid system.

The free-floating diaphragm reacts to the slightest difference in pressure across the valve giving it a very rapid response time between free-flow and no-flow conditions.

High quality, automotive grade OEM diaphragm check valves.

• Cracking pressure: 0.5 psig maximum
• Operating temperature range: -40°F to 250°F
• Flow rate: 6.4 CFH (0.1 CFM) air flow at 0.15 psig maximum*
• Sealing pressure: 3 psig back pressure required for a tight seal

*CFH is cubic feet per hour and CFM is cubic feet per minute.

Materials:

Nylon 66 is a strong, stiff engineering plastic that provides excellent resistance to chemicals and hydrocarbons. This includes oils, lubricants and hydrocarbons such as gasoline, kerosene and diesel fuel.

Fluorosilicone (FVMQ) rubber diaphragms have an excellent operating temperature range, including dry-heat resistance. FVMQ rubbers have good chemical resistance to automotive and aerospace oils, fuels and fluids and against a wide range of other chemicals and solvents. FVMQ also has excellent resistance to aging.

We recommend checking chemical compatibility and requesting samples for testing in real operating conditions.