I use these check valves in a petroleum system at 140 degrees. F 24/7 for 16 months without problems. It was time to replace the motors and tubes, as well as scheduled maintenance, and they still worked perfectly. When I removed the hardened hose from one of these, the valve cracked, but that's to be expected as mineral oil makes the plastic brittle over time. In short: they have performed excellently in harsh conditions for a long time.
12V Brass Solenoid Valve, 3/4" Electric Air Valve For Water, Air, Gas, Fuel And Oil - Normally Closed By Beduan
10 Review
Joywayus 5/8" ID Hose Barb Hex Union Brass Fitting Water/Fuel/Air With 10 Stainless Steel Clamps (Pack Of 5)
13 Review
DIGITEN DC 12V 1/4" Inlet Feed Water Solenoid Valve Quick Connect N/C Normally Closed No Water Pressure
14 Review
High-Quality QiiMii Stainless Steel Sanitary Clamp With Silicone Gasket - 2 Inch, Single Pin Tri Clover Design
16 Review