Page 6 of 12 PP20A-XXX-XXX (en)
PARTS LIST / PP20A-XXX-XXX FLUID SECTION
637309-XX uid section service kits include: Balls (item 22), diaphragms (item 7), and items 19, 70, 144, 175 (listed below) plus
items 174 and 94276 Lubriplate® FML-2 grease (page 8).
MATERIAL CODE
[A] = Aluminum
[B] = Nitrile
[C] = Carbon Steel
[Co] = Copper
[MSp] = Medical Grade Santoprene
[Sp] = Santoprene
[SS] = Stainless Steel
[T] =
PTFE
PARTS LIST
Item Description
(size)
Qty Part No. [Mtl] Item Description
(size)
Qty Part No. [Mtl]
1 Rod (1) 94358 [C]
5 Back-Up Washer (2) 96503 [A]
9 Washer (2) 93065 [SS]
14 Screw
(5/8” - 18 x 2-1/2”)
(2) Y5-111-T [SS]
68 Air Cap (1) 94324-4 [A]
69 Air Cap (1) 94324-5 [A]
70 Gasket (2) 94100 [B]
74 Pipe Plug
(1/4 - 18 N.P.T. x 7/16”)
(1) Y17-51-N [C]
79 Ground Kit Assembly
(not shown)
(1) 94829 - - -
131 Screw
(M10 x 1.5 - 6g x 120 mm)
(4) 94531 [C]
144 “U” Cup
(3/16” x 1-3/8” o.d.)
(2) Y186-51 [B]
175 “O” Ring
(3/32” x 1” o.d.)
(2) Y325-117 [B]
180 Washer
(0.406” i.d. x 0.031” thick)
(4) 94098 [Co]
250 Screw, Self-Tapping
(1/4” - 14 x 1/2”)
(1) Y334-104-C [C]
SEAT OPTIONS
PP20A-XXX-XXX
BALL OPTIONS
PP20A-XXX-XXX
“21”
“22”
(2-1/2” diameter)
-XXX Seat Qty [Mtl] -XXX Ball Qty [Mtl]
-AXX 94328-A (4) [Sp] -XAX 93358-A (4) [Sp]
-SXX 94353 (4) [SS] -XMX 93358-M (4) [MSp]
DIAPHRAGM OPTIONS PP20A-XXX-XXX
Service Kit
“7”
“19”
(1/8” x 3-5/8” o.d.)
-XXX
-XX = (Ball)
-XX = (Diaphragm) Diaphragm Qty [Mtl] “O” Ring Qty [Mtl]
-XXA 637309-XA 94329-A (2) [Sp] - - - - - - - - - - -
-XXM 637309-XM 94329-M (2) [MSp] Y328-237 (4) [T]
MANIFOLD CONNECTION / FLUID CAP MATERIAL OPTIONS PP20A-XXX-XXX
Aluminum Stainless Steel
N.P.T. BSP N.P.T. BSP Tri-Clamp
PP20A-AAX-XXX PP20A-BAX-XXX PP20A-ASX-XXX PP20A-BSX-XXX PP20A-CSX-XXX
Item Description
(size)
Qty Part No. [Mtl] Part No. [Mtl] Part No. [Mtl] Part No. [Mtl] Part No. [Mtl]
6 Diaphragm Washer (2) 96503 [A] 96503 [A] 94357-2 [SS] 94357-2 [SS] 94357-2 [SS]
15 Fluid Cap (2) 94769 [A] 94769 [A] 95556 [SS] 95556 [SS] 95556 [SS]
60 Inlet Manifold (1) 94911 [A] 94911-2 [A] 95537-1 [SS] 95537-2 [SS] 96667 [SS]
61 Outlet Manifold (1) 94767 [A] 94767-2 [A] 95536-1 [SS] 95536-2 [SS] 96666 [SS]
63
Pipe Plug
(2 - 11-1/2 N.P.T.)
(2) Y17-128 [A] - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
(R-2, 2 - 11 BSP)
(2) - - - - - - - - 94439-2 [A] - - - - - - - - - - - - - - - - - - - - - - - -
EXTERNAL HARDWARE OPTIONS PP20A-XXX-XXX
Plated Steel Stainless Steel
PP20A-XXP-XXX PP20A-XXS-XXX
Item Description
(size)
Qty Part No. [Mtl] Part No. [Mtl]
26 Screw
(M10 x 1.5 - 6g x 35 mm)
(8) 94409-1 [C] 94409-2 [SS]
27 Screw
(M10 x 1.5 - 6g x 45 mm)
(16) 94990-1 [C] 94990 [SS]
29 Nut
(M10 x 1.5 - 6h)
(16) 94992-1 [C] 94992 [SS]
FLUID SECTION DISASSEMBLY
Remove (61) outlet manifold and (60) inlet manifold.
Remove (22) balls, (19) “O” rings (if applicable) and (21)
seats.
Remove (15) uid caps.
Remove the (6) diaphragm washer, (7) diaphragm and (5)
back-up washer.
NOTE: Do not scratch or mar the surface of (1) diaphragm rod.
1.
2.
3.
4
.
FLUID SECTION REASSEMBLY
Reassemble in reverse order. Refer to the torque require-
ments on page 7.
Clean and inspect all parts. Replace worn or damaged
parts with new parts as required.
Lubricate (1) diaphragm rod and (144) “U” cups with Lu-
briplate FML-2 grease (94276 grease packet is included in
service kit).
Re-check torque settings after pump has been re-started
and run a while.
