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Installation

• The valve can be installed both horizontally or vertically.

• Ensure enough space nearby for installation and adjustment.

• Flush pipeline before installing the valve, to ensure clean water flow.

• Line flow direction should match arrow on valve.

• Inspect the valve post installation for any loose or damaged fittings.

• Install a pressure gauge at upstream or use pressure check point on valve to set the desired pressure.

• For maintenance, installation of isolation valves at upstream (and downstream if not releasing to atmosphere) is recommended.

Initial Startup and Adjustment

• The Quick Pressure Relief Valve is factory set to the maximum system pressure allowed, according to designed parameters.

• At initial start of the system, make sure the upstream and downstream isolation valves are closed (if installed).

• Now open fully the upstream isolation valve. If the upstream pressure is more than the set pressure, the valve is partially/fully open.

• Confirm that the pressure and flow in the system is stable.

• If the set pressure is either different from the design or the requirements have been changed at site, follow the below mentioned steps to readjust the pressure.

Confirm that the main line pressure is the designed dynamic operating pressure of the system.

Note: When setting is below the designed dynamic operating pressure, the valve is partially/fully open.

Unlock pilot locking nut & slowly turn the adjusting screw Clock-Wise until the valve closes completely.

Now slowly turn the pilot adjusting screw Counter-Clock-Wise until the valve starts leaking. At this stage rotate again the setting screw clockwise (1/4 or 1/2 turn) until the valve seals again.

Tighten the locking nut. Valve is now set at the required pressure.

• The internal design of the 2 Way Pilot restricts the closing of the valve at equilibrium pressure thus automatically preventing valve to seal completely should closing process causes system pressure rise.

Maintenance

• Periodic inspection of the valve should be done regularly for any damage or leakage through valve connection and fittings.

• Inspect and clean the in-line finger filter as water quality deteriorates. This should be done once in few months.

• Keep a check on valve performance by checking the upstream pressure gauge periodically, adjust if required.