
Page 5 of 8
PD20R-X
PARTS LIST / PD20X-X-X FLUID SECTION
COLOR CODE
1
k
15
26
,G
FOR THE
AIR MOTOR SECTION
SEE PAGES 6 & 7
181
60
(PD20X-AXX-XXX)
(PD20X-BXX-XXX)
(Santoprene)
8
7
(PTFE)
21
19
z
180
131
,
x
175
k
70
k
69
61
(PD20X-FXX-XXX)
Figure 2
VIEW OF TWO PIECE PTFE DIAPHRAGM
27
,G
144
k
22
70
k
6
14
,
144
k
63
s
.
TORQUE REQUIREMENTS
,
LUBRICATION / SEALANTS
k
Apply Lubriplate FML-2 grease to all “O” rings,
“U” Cups & mating parts.
x
Apply Loctite 242 to threads at assembly.
s
Apply PTFE tape to threads at assembly.
DIAPHRAGM
BALL
MATERIAL
COLOR
COLOR
Hytrel
Cream
Cream
Nitrile
Black
Red (
S
)
Santoprene
Tan
Tan
Santoprene
Green
N / A
(Backup)
PTFE
White
White
Viton
Yellow (-)
Yellow (
S
)
(-) Dash
(
S
) Dot
8
6
4
1
2
3
5
7
Torque Sequence
126
s
29
22
21
19
z
60
(PD20X-FXX-XXX)
(14) Diaphragm screw, apply Loctite #271 to threads,
65 - 70 ft lbs (88.1 - 94.9 Nm).
(26 and 27) Fluid caps / manifold screws 30 - 40 ft lbs
(40.7 - 54.2 Nm).
(131) Screw 35 - 40 ft lbs (47.5 - 54.2 Nm).
G
Apply anti-seize compound to threads when using
stainless steel fasteners and stainless steel wet ends.
NOTE: DO NOT OVERTIGHTEN FASTENERS.
ALL FASTENERS ARE METRIC.
61
(PD20X-AXX-XXX)
(PD20X-BXX-XXX)
26
,G
175
k
5
7
9
68
z
Not used with PD20X-XXX-AXX, -CXX & -GXX.
Z
Lubriplate FML-2 is a white food grade petroleum grease.