Alfons Haar master control block with visual display for pre-controlling pneumatic vent valves and pneumatic control systems. Part number 1009610 (PST3A) is supplied with a green draw-button, clear visual indicator, and a pneumatic self-locking function—ideal for road tanker and fuel handling control panels where a master shut-off / switch-off function is required.
Key details:
- Manufacturer: Alfons Haar
- Part number: 1009610
- Type: PST3A master control valve / master control block
- Button/colour: Draw-button, green
- Identification: Symbol “T” stamped in, with label “AH”
- Visual display: Yes (visual indicator)
- Function: Pneumatic self-locking; remote switch-off
- Working pressure: 3 to 8 bar
- Weight: 0.2 kg
Compatibility / assembly notes:
- Designed to be combined with additional control blocks type PST 2A to build control block assemblies.
- Requires the associated end blocks PE-L and PE-R to form complete assemblies (please order end blocks separately if not already fitted).
Typical applications: master control functions in pneumatic systems, including pre-control of pneumatic vent valves used on road tankers and fuel transfer equipment.
Note: End blocks PE-L and PE-R and any additional PST 2A control blocks are not included unless added to your order.