The 281 PRI/Chek Valve combines the function of a pressure relief valve in parallel with a check valve in one insert. Relief valve function features a Tungsten Carbide ball and 440C seat. The remaining components are stainless steel. Integral safety screens are optional. It’s available in a range of relief flow cracking pressures for system pressures up to 5000PSI. Maximum restriction in free flow direction is 300 Lohms (550 Lohms for screened version). Each valve is 100% tested and inspected in both flow directions.
The Lee Co., (860) 399-6281