Installation Guide

912 Series
For information, contact Fisher Controls, International:
Within USA [phone] – Outside USA [phone]
France – (33) 23-733-4700
Singapore – (65) 770-8320
Mexico – (52) 57-28-0888
©Fisher Controls International, Inc., 2002; All Rights Reserved
Fisher and Fisher Regulators are marks owned by Fisher Controls International, Inc. The Emerson logo is a trade mark and service mark of Emerson Electric Co.
All other marks are the property of their respective owners.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express
or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.
Printed in U.S.A.
www.FISHERregulators.com
BD4632-H
Adjustment
To change the outlet pressure, remove the closing cap or
loosen the locknut and turn the adjusting screw clockwise
to increase outlet pressure or counterclockwise to decrease
pressure. Monitor the outlet pressure with a test gauge
during the adjustment. Replace the closing cap or tighten
the locknut to maintain the desired setting.
Taking Out of Service (Shutdown)
To avoid personal injury resulting from sudden
release of pressure, isolate the regulator from all
pressure before attempting disassembly.
NOITARUGIFNOCELBALIAVA
EGNARERUSSERPTELTUO
)gisp/.c.wsehcni(rab
TAGNITTESERUSSERPTELTUOEVOBATNIOPETAMIXORPPA
EGRAHCSIDOTSTRATSFEILERLANRETNIHCIHW
)gisp/.c.wsehcni(rab
leehwdnahtuohtiw219epyT
)7ot3(71ot7
)01ot5(52ot21
)31ot52.9(23ot32
)42ot21(06ot03
)12ot5(25ot21
)03ot8(57ot02
)93ot61(79ot04
)gisp3ot71(012ot24
leehwdnahtuohtiwH219epyT
)5.2ot1(271ot96
)5ot7.2(043ot681
)8.6ot7.0(74,0ot50,0
)5.21ot8.3(68,0ot62,0
leehwdnahhtiwseireS219
)1ot0(96ot0
)5ot0(043ot0
)3ot0(012ot0
)5.21ot0(68,0ot0
Table 1. Outlet Pressure Ranges
Figure 1. 912 Series Pressure Regulator Assembly
Parts List
Key Description
1 Regulator Body
2 Spring Case
3 Closing Cap
4 Adjusting Screw
5 Regulator Spring
6 Relief Valve Spring
7 Spring Seat
8Pin
9 Relief Valve
10 Diaphragm Plate
11 Disc Holder Assembly
12 Fulcrum Rod
13 Machine Screw
14 Machine Screw
15 Diaphragm
16 Vent Screen
17 Closing Cap Gasket