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Model 218–940, Series D
With Buna–N Diaphragm
Includes items 1–57
Model 218–942, Series D
With EPDM Diaphragm
Includes items 1–52
REF PART
DESCRIPTION
NO. NO.
1
108–248
SHAFT, diaphragm
2
108–252
HOUSING, pump
(includes item 51)
3
108–574
BOLT, M8 x 40
4
108–250
SEAL, shaft
5
108–249
STOP, diaphragm
6
110–032
PLATE, support, air side
7
108–244*
DIAPHRAGM, buna–N
(Model 218–940 only)
108–465*
DIAPHRAGM, polyester elastomer
(Model 220–438 only)
108–273*
DIAPHRAGM, EPDM
(Model 218–942 only)
8
110–280
PLATE, support, fluid side;
316 sst
11
108–579
COVER, diaphragm; aluminum
12
185–409
LEG, left hand
13
185–410
LEG, right hand
14
108–391
BOLT, M8 x 35
15
105–329
NUT, M8
16
104–421
WASHER, M8
17
108–625*
O–RING, valve seat; buna–N
(Model 218–940 only)
108–627*
O–RING, valve seat; EPDM
(Model 218–942 only)
108–628*
O–RING, valve seat;
polyester elastomer
(Model 220–438 only)
18
108–242
PLATE, valve seat; 316 sst
19
108–240*
BALL, inlet and outlet;
PTFE
(Model 220–438 only)
108–746*
BALL, inlet and outlet; EPDM
(Model 218–942 only)
108–745*
BALL, inlet; buna–N (black)
(Model 218–940 only)
20
108–581
MANIFOLD, top (outlet);
aluminum
21
108–582
MANIFOLD, bottom (inlet);
aluminum
22
108–254
SCREW, socket, M4 x 20
23
108–257
PLATE, slide valve
24
108–260
GASKET, slide valve
25
108–261
VALVE, slide
26
108–262
SPRING, air valve
27
108–268
PIN, actuator, air valve
28
108–267
SPOOL, valve, pilot
29
154–771
O–RING; buna–N
30
108–256
CAP, valve, right hand
31
108–263
SPOOL, valve
32
108–264
BLOCK, valve
33
108–255
CAP, valve, left hand
35
108–253
SCREW, M6 x 20
36
110–035
WASHER, M6
37
109–043
PLATE, air inlet
38
108–258
GASKET, air inlet
39
108–265
SCREW, socket, M6 x 35
PARTS LIST (Aluminum Models)
QTY
(PTFE)
Model 220–438, Series C
With Polyester Elastomer Diaphragm
Includes items 1–52
REF PART
NO. NO.
40
108–274
1
44
179–944**
46
181–211**
1
47
181–212**
8
48
104–582
2
49
104–029
2
51
108–251
2
52
108–766
2
57
110–263*
2
* Included in repair kits. See below .
2
** Additional warning labels and tags are available at no
2
extra charge.
2
2
2
CHECK VALVE REPAIR KITS
16
(Must be purchased separately)
24
32
220–988
PTFE
220–989
Buna–N/Delrin
8
220–990
EPDM
8
Consist of:
Ref. No.
17
8
19
4
57
4
DIAPHRAGM REPAIR KITS
4
(Must be purchased separately)
2
220–981
Polyester Elastomer
220–982
EPDM
1
220–983
Buna–N
1
Consist of:
4
Ref. No.
1
7
1
1
1
1
1
PTFE
CONVERSION KIT 222–373
2
1
Part No.
Description
1
110–279
PLATE, support, fluid side
1
108–576
DIAPHRAGM,
1
108–847
DIAPHRAGM, backup
4
108–587
PACKING, o–ring
4
110–036
BOLT, M8 x 45
1
108–240
BALL,
1
405–891
LABEL, instruction
3
DESCRIPTION
MUFFLER
LABEL, warning, suction
LABEL, warning, HHC
LABEL, warning, exhaust
WASHER, tab
LUG, grounding
BUSHING
AIR DIRECTOR VALVE ASSY
Includes items 22–33
BALL, outlet; Delrin
(white)
(Model 218–940 only)
(PTFE)
Qty
8
4 (2 in 220–989)
2 (220–989 only)
Qty
2
PTFE
(PTFE)
PTFE
(PTFE)
QTY
1
1
1
1
1
1
2
1
2
Qty
2
2
2
8
8
4
1
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