Established in 1958, Check-All Valve Manufacturing Company based in West Des Moines, Iowa manufactures a series of valves in a wide range of materials. The company offers insert, housed, mini-check, tubing and custom series products. Other end connection products include flanged, threaded, sanitary, tubing, etc. In addition, Check-All Valve Manufacturing Company offers tag and testing services, which include clean for oxygen, chlorine, isocyanate, hydrostatic shell test, water immersion shell and seat leakage, among others. It is compliant with the Pressure Equipment Directive (PED 97/23/EC) and is ISO 9001-2000 and NACE certified.