Hex offers a bellows stem seal option for use on Hex instrument valves in the control and monitoring of corrosive chemicals, hazardous materials or any application where leakage and containment are primary considerations.
The bellows stem seal option can be specified on a wide range of Hex instrument valves, gauge valves, bleed valves, three and five valve manifolds and static pressure manifolds. The bellows is hydro-formed and laser-welded to the stem assembly for greater stability and longer life.
The bellows can be provided in either 316L or Monel, and the option also provides secondary sealing for greater protection than can be achieved with a single seal design. Hex Valve exercised care in maintaining compact bonnet dimensions to reduce the risk of accidental breakage or damage to the bellows and also to reduce the amount of space that would be required to install the products.