RFPL.b type high-performance pneumatic balanced cage-type single-seat control valve

RFPL.b type high-performance balanced cage-type single-seat control valve is an improved pressure-balanced control valve. It uses a high-performance balanced sealing ring on the valve cage. The composite sealing ring is made of a finger-like spring made of stainless steel and filled with polytetrafluoroethylene (R-PTFE), creating an elastic, self-compensating, absolute shut-off seal. As a result, the overall performance can achieve IV or even V-class leakage. In the lower part of the soft seal, a hard seal is provided, primarily to remove hard particles from the medium and prevent damage to the balanced sealing ring.