Offered for 3, 4, 6 and 8" models, the chlorinated polyvinyl chloride (CPVC) discs for the company’s Type 57 butterfly valve line provide safety and perform well in aggressive chemical environments. The valve offers a completely non-wetted or dry stem design that isolates the valve body from the pipeline fluid. The media only contacts the disc and the full seat liner material. This design allows users to take a standard PVC valve body and install an optional CPVC disc to meet the requirements of a broader range of aggressive chemical applications.

Asahi/America Inc., (781) 321-5409