4057 / 4457 Manual & Pilot Operated 3-Way Pilot Valves
AMOT Models 4057 and 4457 3-way valves have been developed for use in manual and automatic hydraulic or pneumatic control systems. They offer versatility in operating requirements and allowable pressure limits. For a 1/4” size control valve, they offer exceptional flow capacity.
Note: This product replaces model 4459.
Features and Benefits
- Balanced force design pressure
- Can be applied to any port center dead spot-std
- Port overlap-optional
- Arranged for panel or bracket mounting
- Available in Aluminum or 316 Stainless Steel
|Body material:||4057||Precision cast aluminum|
|Standard spool material:||Anodized aluminum|
|Standard seal material:||Viton|
|Max. pressure at Ports 1,2 or 3:||860 kPa||125 psi|
|Max. pressure at Ports A or B:||1034 kPa||150psi|
|Max. pressure at Port C:||860 kPa||125 psi|
Hydraulic Fluid Control
Pneumatic Panel Systems
Safety Control Systems
The 3-way pilot valves feature modular construction and incorporate a sliding spool. The standard spool has a small center dead spot position and no valve port overlap. With the spool fully to the left (rest position), Port 2 is open to Port 3 and Port 1 is closed. With the spool moved to the right (actuated position), Port 2 is open to Port 1 and Port 3 is closed. The valves are available with a variety of manual and pressure operators and with manual, pressure or spring returns.