Ingersoll-Rand ARO SD20 B Series, Operator'S Manual

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SD20X-XXX-XXX-BXXX (en) Page 5 of 20
SEAT OPTIONS SD20X-XXX-XXX-BXXX BALL OPTIONS SD20X-XXX-XXX-BXXX
“21”  “22” (2-1/2” diameter)
-XXX Seat Qty Mtl -XXX Ball Qty Mtl
-CXX 94328-C (4) [H] -XCX 93358-C (4) [H]
-KXX 97423-K (4) [K] -XMX 93358-M (4) [Msp]
-SXX 97325 (4) [SS] -XSX 94805 (4) [SS]
-XTX 93358-4
(4) [T]
DIAPHRAGM OPTIONS SD20X-XXX-XXX-BXXX
 Service kit  “7”  “8”  “19” (1/8” x 2-1/8” OD)
-XXX
-XX = (Ball)
-XX = (Diaphragm)
Diaphragm Qty Mtl Diaphragm Qty Mtl Gasket Qty Mtl
-XXC 637494-XC 97326-C (2) [H] ---- -- -- Y328-237 (4) [T]
-XXM 637494-XM 97326-M (2) [Msp] ---- -- -- Y328-237 (4) [T]
-XXT 637494-XT 97327-T (2) [T] 97328-A (2) [SP] Y328-237 (4) [T]
-XXK 637494-XK 97436 (2) [TC] ---- -- -- Y328-237 (4) [T]
NOTE:
Gasket item 19 are not required with seat options -CXX.
CENTER SECTION PART OPTIONS SD20X-XXX-XXX-BXXX
Item Description (size) Qty Part No. Mtl
5
Backup Washer (2) 97316 [SS]
(SD20X-XXX-XXK-BXXX only)
(2) 97449 [SS]
68 Air Cap (1) 97313-3 [SS]
69 Air Cap (1) 97313-4 [SS]

175
“O” Ring
(3/32” x 1-1/16” OD) (SD20S-XXX-XXX-BXXX)
(2) Y325-118 [B]
(SD20R-XXX-XXX-BXXX)
(2) Y325-117 [B]
COMMON PARTS
Item Description (size) Qty Part No. Mtl
1
Rod
(1)
97427
[C]
(SD20X-XXX-XXK-BXXX Only)
97448
 6 Diaphragm Washer (2) 97316 [SS]
 9 Washer (2) 97318 [SS]
 14 Screw
(5/8” - 18 x 2-1/2”)
(2) 97319 [SS]
15 Fluid Cap (2) 97320 [SS]
43 Ground Lug
(SD20S-XXX-XXX-BXXX)
(1) 93004 [Co]
60 Inlet Manifold (1) 97321 [SS]
61 Outlet Manifold (1) 97322 [SS]

70 Gasket (2) 94100 [B]
74 Pipe Plug
(SD20X-XXX-XXX-BXFX, SD20X-XXX-XXX-BX0X, SD20X-XXX-XXX-BXPX)
(2) Y17-51-S [SS]
82 Sanitary Clamp
(2.5”)
(4) 97323 [SS]
83 Band-Clamp, Diaphragm (2) 97324 [SS]
131 Screw
(M10 x 1.5 - 6g x 120 mm)
(4) 96656 [SS]

144 “U” Cup
(3/16” x 1-3/8” OD)
(2) Y186-51 [B]

180 Gasket
(0.406” ID x 0.031” thick)
(4) 94098 [Co]
MATERIAL CODE
[B] = Nitrile
[C] = Carbon Steel
[Co] = Copper
[H] = Hytrel
[K] = PVDF
[Msp] = Medical Grade Santoprene
[SP]
= Santoprene
[SS] = Stainless Steel
[T] = PTFE
[TC] = PTFE Composite

Items are not required with diaphragm options - SD20X-XXX-XXK-BXXX.
 
Items included in Air motor kit parts, see pages 7, 9 and 10.

637494-XX FLUID SECTION SERVICE KITS INCLUDE: BALLS (See “Ball Options”, refer to -XX Service kit in chart below), DIAPHRAGMS (See “Dia-
phragm Options”, refer to -XX in Service kit chart below), and items 19, 70, 144, 175, (listed below) plus 174 and 94276 Lubriplate FML-2 grease
(page 7).
PARTS LIST / SD20X-XXX-XXX-BXXX FLUID SECTION