172-65200MA-07 (PCV-1) 8 Oct 2021
4
Operation
NOTE: See the
“Configuration” section for details.
Pressure on the primary side pressurizes the piston side through the pressure
passing port on the valve body. When the pressure exceeds the set pressure set by
the adjustment screw, the piston pushes the spring to open the valve and
consistently maintains pressure on the primary side by letting through the pressure
on the primary side to the secondary side.
Specifications
Install properly and DO NOT use this product outside the recommended
operating pressure, temperature and other specification ranges.
Improper use may result in such hazards as damage to the product or
malfunctions which may lead to serious accidents. Local regulations
may restrict the use of this product to below the conditions quoted.
CAUTION
Use only under conditions in which no freeze-up will occur. Freezing
may damage the product, leading to fluid discharge, which may cause
burns or other injury.
CAUTION
Refer to the product nameplate for detailed specifications.
* Maximum allowable pressure (PMA) and maximum allowable temperature (TMA) are
PRESSURE SHELL DESIGN CONDITIONS,
NOT
OPERATING CONDITIONS.
** Valve No. is displayed for products with options. This item is omitted from the
nameplate when there are no options.
Model
Production Lot No.
Maximum Allowable
Temperature (TMA)*
Maximum Operating
Temperature (TMO)
Nominal Diameter
Maximum Allowable
Pressure*
Maximum Operating
Pressure
Valve No.**
