C0.080 VRT3 Standard Unloader Valve with spanner pressure adjustment and lock nuts. To reduce inclination to tamper with pressure settings.
New replacement for C0.020 & ST261
Sturdy steel and brass construction
Adjustable and anti-tamper unloader valve of pressure relief valve with bypass for a power washer pump.
Unloader set up instructions: (see images above)
- Before pressurising the system: E must be screwed anticlockwise (to minimum pressure).
- One or both bypass ports B MUST be open to a ‘no pressure’ line.
- Port A is connected to the pressure system. C is the outlet to the high-pressure line to spray gun. Port D must be blanked off or a pressure gauge can be fitted.
- Set adjuster E of the unloader to the required pressure (which MUST be LESS than the maximum unloader pressure of the unloader valve AND LESS than the maximum pressure of your equipment)
- Set the locking nuts E (inside the spring) so this pressure (the running pressure and the lock line pressure) cannot be exceeded.
Safety valve set up instructions: (see images above)
- E must be screwed anticlockwise (to minimum pressure) before pressurising the system.
- Please ensure that port A is connected to the pressure line.
- One or both of ports B (Bypass) MUST be left open to a ‘no pressure’ line.
- Ports C & D must be blanked off or a pressure gauge can be fitted to either port.
- Port C must be unscrewed, and the non-return shuttle removed.
- Set the locking nuts E (inside the spring) so the pressure does not exceed the maximum pressure of your system
IMPORTANT SAFETY NOTE: BEFORE powering the system: 1. the unloader valve MUST be set at MINIMUM pressure; 2. The bypass port MUST be open; 3. Then set the unloader to the required pressure (which MUST be LESS than the maximum unloader pressure of the unloader valve AND LESS than the maximum pressure of your equipment); 4. Set the locking nuts so this pressure (the running pressure and the lock line pressure) cannot be exceeded.
CAUTION: This is high pressure equipment and if the above safety and set up rules are not followed, serious damage to equipment and injury to humans can occur. The caps and joints can be blown clean out of their threads which cause dangerous projectiles. Please be free to ring 01522 787978 if you need any assistance.
