Piston Sampling Valve - Stainless or Hastelloy
The 135A sampling valve is equipped with a metallic piston (Stainless Steel or Hastelloy) for sampling process up to 330°C (572° F). FDA certified up to 260°C.
Unlike the PTFE or PEEK piston, the metal piston has a high temperature gasket around it.
To avoid any damage when closing the piston, the gasket is recessed into the piston and seals against the valve cylinder wall making contact only after the final sealing turn of the handwheel.
Tightness from full vacuum up to 10 bar (145 psi).
Standard Finish: internal roughness is Ra ≤ 0.8 µm and the external is Ra ≤ 3.2 µm.
Connection to your process equipment: ANSI Flange, DIN Flange, Custom Flange, Tri-Clamp or any other you require