Fisher D450003T012 Thermostat User Manual


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Type N201
Fisher and Fisher Regulators are marks owned by Fisher Controls International, LLC. The Emerson logo is a trademark 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
ed
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.
Fisher does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Fisher product remains solely with
the purchaser.
Emerson Process Management
Fisher Controls International, LLC.
P.O. Box 8004
McKinney, Texas 75070, USA
Telephone: 1 (800) 588-5853
Telephone: 1 (469) 293-4201
www.FISHERregulators.com/lp
©Fisher Controls International, LLC., 1980; All Rights Reserved
Parts List
Key Description
1 Valve Head
2 Valve Housing
3 Orifice
5* Disc Holder Assembly
6 Control Valve Stem
7* O-Ring
8 Bushing
9 Diaphragm Head
10* Upper Diaphragm
11 Bushing
13 Pilot Valve
14 O-Ring Washer
15* O-Ring
16 Pilot Valve Stem
17 Valve Body
18 Indicator Rod
19 Sight Glass
20 Indicator Cap
21 Control Valve Spring
22 Cap Screw (6 required)
23 Trip Valve Stem
Key Description
24 Trip Valve
25 Inner Valve
26 Screen Holder Assembly (2 required)
30 Type 67/683
31 Type 67/685
32* Diaphragm Assembly
33 Pipe Nipple (3 required)
34 Tee
35 Spring
36 Inverted Flare Elbow (2 required)
37 Nut (2 required)
38 Hose Assembly
39 Tubing Assembly
40 Street Elbow
41 Beam Button
42 Beam Bar
43 Set Screw
44 Machine Screw
45 Vent Screen (2 required)
46 Trip Valve Spring
47 Spring Set
* Recommended spare parts for stock.
Figure 3. Type N201
BUTTON AND BAR FOR
ATTACHMENT TO SCALE BEAM
39 30 15 9 20 5 7 8 21 13 31 38 40
34
33 11 10 18 19 3 6 1 45 2
17 16 32
22 26 14 35
43 41
44
36
46
47
42
23 24
25 37
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