I am looking for a couple of 12VDC 3-way stainless universal solenoid valves for water use with little success. They need to operate in the 20-30 psi range but have a proof pressure above 1,000 PSI. (The HP pump will be locked out and system pressure reduced before the valve operates.)
Other...
What is the difference between Back pressure regulators and relief valves? Some vendors call them the same thing and use them interchangably while others charge 6 or 8 times as much for the back pressure regulator.
My application needs to hold seawater to 800psi within 5%. The flow ranges...