VLA25

These are 4-Way, 3-Position, rotary disc, direct-operated airvalves. Two different types of control are offered. The forgedbronze disc and the cast iron surface upon which the discworks are ground and lapped to provide a leak-proof seal.Air pressure from the inlet port is confined beneath the disc,making the seal tighter as the pressure increases, yet frictionbetween the lapped surfaces is so low that only 15 poundsof force is required to move the lever at 100 PSI line pressure.The need for packing to seal around the stem is eliminated.Valve can be furnished for gasketing to a manifold oncustomer’s machine or with an adaptor for tapped bottomporting.

Features:

• This type has a 90° lever movement. In neutral position, inlet is closed to pressure – outlets open to exhaust. With clockwise (CW), inlet is connected to cylinder port directly opposite. Other cylinder port is connected to exhaust. With counterclockwise (CCW), inlet is connected to cylinder port diagonally opposite. Other cylinder port is connected to exhaust.
• This valve is particularly suited for pneumatic chuck operation.