MS Check Valve can be used with gas, oil, water, or drilling fluids and is available in all temperature and material classes as well as product specification levels (PSL) as specified in API 6A. It is available in standard pressure ratings from 3,000 to 20,000 psi and bore sizes from 1-13/16 to 7- 1/16 in. MS Check Valve can be availed at economical rates.