Flowserve Rising Stem Ball Valve

The RSBV uses a unique helix system that opens and closes the valve without rotation. The linear only operation of the stem makes it an excellent choice for frequent cycling.  Each linear operation, from opening to closing and back again, is a friction-free movement between seat and ball that significantly reduces valve wear and keeps routine maintenance to a bare minimum.Whether your needs call for molecular sieve switching, isomerization, thermal oil, high/low temperatures or critical services, the RSBV provides an unmatched level of robustness, reliability, and convenience