Flush Bottom Piston Valves - Drain Valve invented by SchuF

SchuF is the inventor of the Piston Bottom Outlet Valve (Patent received in 1926). They are most commonly used to quickly drain or inject media into or out of vessels, tanks or reactors.

Bottom outlet drain valve - Ram design with Super Closure feature

Applications for Piston (or Ram) Valves

Piston or Ram valves are most commonly used for dead space free draining and feeding of vessels, reactors and pipelines. They are particularly suited to highly viscous materials, or where rapid vessel drainage is important. They are widely used in the Pharmaceutical and Fine Chemicals, Petrochemical, Polymer, and Mineral Processing industries.

Piston Bottom Outlet Valves ready for testing

Key Characteristics of SchuF Ram Valves

All valves have full nominal bore
Available with 45°, 60°, or 90 degree outlet angle in the body
Modular design
Sealing to atmosphere always with adjustable loaded stuffing box
Valves have exchangeable seats
LeakTight © Sealing due to special SchuF process of manufacturing
A flushing connection is provided as standard
Available with either Radial or Positive seal

Ram Drain Valve Options

The Model 28 Valve is GMP and CIP compliant
A wafer type sampling valve can be inserted between valve body and vessel
Multiport valve variants are available
Manual, electric, pneumatic, and hydraulic actuation available

Sizing Piston Valves

Depending on application, sizes from half inch to 24 inch and larger on request.

Material Choice

Flush Bottom Piston Valves are available in all materials including cast-steel, stainless steel, all nickel based alloys, Titanium, Zirconium and others.