Product Description
Max Seal 51-DI-SS-S6-N-65 2.5" Butterfly Valve 2.5"
- Body: Ductile Iron A536
- Seat: Viton
- Lower Shaft : SS Stainless 316
- Disc: Stainless 316 SS CF8M
- Upper Shaft: Stainless 316
- Size 2.5
- Bare Stem: N
One piece body with extended neck allows clearance for flanges and up to 2 1/2 inch of insulation.
Primary stem seals are formed by preloaded contact between the disc and seat. A secondary seal is effected by having a steam diameter greater than the stem hole in resilient seat. These seals provide a non-wetted body and stem, eliminating the need for corrosion resistant body material.
Accurate and smooth machined profile of disc edge requires minimal deformation of the resilient elastomer liner to achieve a positive seal. The low deformation results in low torque, less wear of the seat liner and increased operational life.
