Installation
Before following the numbered steps listed, the installer must:
a)
Be sure this pressure reducing valve is compatible with the other equipment in the system that
it may interact with or come into contact;
b)
Assess and acknowledge all hazards related to the use of the this product, including potential
leakage, by installing this unit properly;
c)
Install shut-off valve with pressure ports or similar equipment to measure the upstream pressure.
1) Turn all the faucets on before installing the pressure reducing valve, to flush the system and
expel any air remaining in the pipes.
2) Install shut-off valves upstream and downstream to facilitate maintenance operations.
3) The pressure reducing valve may be installed on either vertical or horizontal pipe. However, it
must not be installed upside down.
4) Close the downstream shut-off valve.
5) This mechanical pre-adjustment system, with the operating knob and pressure indicator visible
from both sides, allows the pressure reducing valve to be set to the required value in the system
prior to installation. The pressure indicator features incremental step movement, so that the
pressure can be adjusted continuously and the value displayed at 15 psi increments.
6) Set using the operating knob on the upper part of the valve. The pressure reducing valves are
factory set to a pressure of 45 psi.
7) Because the pre-adjustment dial displays in 15 psi increments, the optional downstream outlet
pressure gauge can be used to show the exact outlet pressure, which is especially useful for
applications requiring this precision.
8) After installation, the internal mechanism will automatically control the pressure, until the set
value has been reached.
9) Slowly reopen the downstream shut-off valve.
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Installation recommendations
1. Installation below ground
Installation below the ground is not advisable.
2. Outdoor installation
Pressure reducing valves should not be installed outside the building unless properly protected from
freezing and the weather.
3. Water hammer
Water hammer is a common reason for pressure reducing valve failures. Specific devices should
be installed to absorb water hammer for systems with this risk.
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