Jordan Valve 657M Series Diaphragm Actuator - Manual (Page 4)

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The following parts list includes complete part numbers
for components of the 657M Actuator that are gener-
ally replaceable in the field, and are most commonly
used. Key numbers correspond to those in Figure 3. If
materials and parts are required, but are not outlined in
this literature, consult your Jordan Valve representative.
Include the serial number of your actuator in all corre-
spondence regarding replacement parts.
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ctuator
Table 1: Parts Reference
Key Part Name
1 Actuator Spring
2 Spring Adjuster
3 Actuator Stem
4 Spring Seat
5 Diaphragm Plate
6* Diaphragm
7 Upper Diaphragm Case
8 Lower Diaphragm Case
9 Yoke
10 Cap Screw
11 Cap Screw
12 Travel indicator
13 Hex Nut
14 Hex Jam Nut
15 Self-Tapping Screw
16 Travel Indicator Scale
17 Nameplate
18 Drive Screw
19 Cap Screw
20 Hex Nut
21 Stem Connector
22 Twin Speed Nut (not shown)
23 Pipe Bushing (Size 70 only)
(Not shown)
*Recommended Spare Part
Figure 3: 657M Actuator Assembly Drawing
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