The Lee Company’s new 281 PRI/Chek Valve combines the function of a pressure relief valve in parallel with a check valve into one easy to install insert. The relief valve function features a rugged tungsten carbide ball and a 440C seat for durability and long life. The remaining components are constructed entirely of stainless steel.
Offered with or without integral safety screens, the 281 PRI/Chek Valve is available in a range of relief flow cracking pressures for system pressures up to 5000psi. Maximum restriction in the free flow direction is 300Lohms (550Lohms for the screened version). Each Lee PRI/Chek Valve is 100% tested and inspected in both flow directions to ensure reliable, consistent performance.