FAIRCHILD INDUSTRIAL PRODUCTS CO.
REGISTERED TO ISO 9001:2008
10002346 QM08
Nut &
Bonnet
Panel
Mounting
Option
Cap
Tamper-
proof
Option
Diaphragm
Assembly
Non-Relieving
Option
4 Port
Valve
Body
Option
Diaphragm
Assembly
Relieving
Option
2 Port
Valve Body
Option
Knob
Option
Snap
Ring
Spacer
Filter
Spring
Spring Seat
Seat
Retainer
Valve Seat
Valve
Spring
Guide
Range Screw
Bonnet
Nut
Cap
Fairchild Products Company
3920 West Point Blvd. • Winston-Salem, NC 27103
phone: (336) 659-3400 • fax: (336) 659-9323
[email protected] • www.fairchildproducts.com
WARNING
Shutting off air supply to the pressure
regulator and adjacent equipment can create
dangerous system conditions.
To service the Model HPD, use the following steps:
Remove the Knob Cap and remove the Nut
1.
holding the Knob in place. Remove the Knob
from the Range Screw.
Remove the Bonnet from the Valve Body.
2.
Remove the Spring Seat, Range Spring and
3.
Diaphragm Assembly from the Valve Body.
Remove the Seat Retainer from the Valve Body.
4.
Remove the Valve , Valve Seat, Spring and
5.
Guide from the Valve Body.
Wash parts with instrument type cleaning
6.
solution, preferable in an ultrasonic cleaner.
Rinse and dry parts before reassembly.
Reassemble in reverse order.
7.
Torque Seat Retainer to 100 in.lb.
Torque Bonnet to 150 ft.lb.
NOTE: If the standard maintenance procedure
does not correct the problem, install the
appropriate Service Kit per table below.
LEGAL NOTICE:
The information set forth in the foregoing
Installation, Operation and Maintenance
Instructions shall not be modified or amended
in any respect without prior written consent of
Fairchild Industrial Products Company. In
addition, the information set forth herein shall
be furnished with each product sold incorporat-
ing Fairchild's unit as a component thereof.
MAINTENANCE
IS-10000HPD
Litho in USA
Rev - 10/12
4
Trouble Shooting
Problem Source
Solution
Leakage Bonnet
Tighten the Bonnet
High
Bleed
• Relief Valve
• Supply Valve
• Supply Seat
• Diaphragm
Assembly
• Clean all parts
including Valve
Body.
• If damaged, install
the service kit.
Service Kit Part No. 21916-
*
*
*
Pressure
Range
PSIG BAR
0-25 0-1.7
0-50 0-3.5
1-100 0.07-7.0
2-250 0.15-17.0
3
4
5
7
Seat
Material
PEEK
CTFE
Vespel SP-1
P
T
V
Relief
Non-Relieving
Relieving
N
R
