8
Installation
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
Take measures to prevent people from coming into direct contact with
product outlets. Failure to do so may result in burns or other injury from
the discharge of fluids.
CAUTION
Installation, inspection, maintenance, repairs, disassembly, adjustment and valve
opening/closing should be carried out only by trained maintenance personnel.
1. Blowdown
Open
Closed
Closed
Pressure
Reducing
Valve
Blowdown using a bypass line
Before installing the PN-DR
unit, be sure to blow down all
piping thoroughly.
If this is not possible, perform a
blowdown using the bypass
valve. Blowdown is especially
important for newly installed
piping or after the system has
been shut down for a long
period of time.
2. Removing the Protective Caps
Before installation, be sure to remove all protective seals and caps.
(Found in 3 locations; on the product inlet and outlet, motive air
connecting port.)
3. Tolerance Angle for Installation
10
°
10
°
15
°
15
°
Make sure the PN-DR is installed on horizontal piping
with the adjustment handle facing up.
Ensure the raised TLV lettering on the body is
horizontal and the arrow is pointing in the direction of
flow. The allowable inclination of the PN-DR is 10
°
front-to-back and 15
°
horizontally.
4. Piping Support
Pay attention to avoid excessive load, bending and
vibration. Supporting the inlet and outlet pipes
securely is recommended.
172-65119MA-01 (PN-DR) 13 Jun 2013
