Ingersoll-Rand ARO EVO EP20 Series, Руководство оператора

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Page 30 of 44 EP20-XXXXX-XXX-XXX (en)
PARTS LIST / PRV EP20-XXXXX-XXX-XXX
MANIFOLD / HOUSING MATERIAL OPTIONS EP20-XXXXX-XXX-XXX
Aluminum Cast Iron Stainless Steel
Item Description
(size)
Qty Part No. [Mtl] Part No. [Mtl] Part No. [Mtl]
40 PRV ASSY (1) 67557-1 --- 67557-2 --- 67557-3 ---

44 Housing, PRV (1) 97971 [A] 98073 [CI] 98087 [SS]
66 Manifold, PRV Return (1) 98048 [A] 98072 [CI] 98086 [SS]
EXTERNAL HARDWARE OPTIONS EP20-XXXXX-XXX-XXX
Item Description
(size)
Qty
Aluminum /
Cast Iron
Stainless Steel
Part No. Mtl Part No. Mtl

46 Cylinder, PRV (1) 97982-1 [C] 97982-2 [SS]

50 Cap Spring, PRV (1) 97972-1 [C] 97972-2 [SS]

52
Bolt
(M8 x 1.25 - 6g x 30 mm)
(5)
Y255-83-E [C] ----- --
Flange Bolt
(M8 x 1.25 - 6g x 30 mm)
----- -- 95880 [SS]

53 Flanged Top Lock Nut
(M8 x 1.25)
(5) 98220 [C] 95879 [SS]

54 Washer
(M8)
(5) 98215 [C] ----- --
55
Bolt
(M10 x 1.5 - 6g x 45mm)
(4) Y255-105-E [C] ---- ---
Flange Bolt
(M10 x 1.5 - 6g x 45mm)
(4) ---- --- 94990 [SS]
56 Flat washer
(M10)
(4) 98214 [C] --- --
57 Flange Nut
(M10 x 1.5 - 6H)
(4) 98217 [C] 94992 [SS]
COMMON PARTS
Item Description
(size)
Qty Part No. Mtl

37 Clamp (4) 93283 [SS]

38 Carriage Bolt
(1/4” x 20 - 6g x 1-1/2”)
(4) Y84-403-T [SS]

39 Nut
(1/4” - 20)
(4) Y12-4-S [SS]

42 Bellows, PRV (1) 97981 [T]

43 O-Ring
(1/8” x 2-5/8” OD)
(1) Y327-229 [V]

45 Rod, PRV (1) 97980 [SS]

47 Piston, PRV (1) 97979 [D]

48 O-Ring
(7/32” x 2” OD)
(1) Y327-326 [V]

49 Spring, PRV (1) 97978 [C]

51 Fitting
(3/8” OD Tube x 1/4” NPT)
(1) 59474-160 [Ny]
184 Tubing
(3/8" OD Clear)
(0.6 ft) 98227-XXX-X [F]

Indicate parts included in PRV assembly 67557-X (40).
PRV SECTION DISASSEMBLY

Disconnect 3/8” OD tube (184) between PRV housing (44)
and air cap (147).

Loosen clam shell (37) between PRV return Manifold (66)
and PRV housing (44). Remove PRV return Manifold (66)
from inlet PRV Manifold (65).

Loosen clam shell (37) between outlet PRV Manifold (63)
and PRV housing (44). Remove PRV housing (44).

Remove PRV cap (50), spring (49), piston assembly (45
and 47), and O-ring (48).

Remove PRV cylinder (46) from PRV housing (44).

Remove Bellows (42) and O-ring (43) from PRV housing
(44).
PRV SECTION REASSEMBLY

Reassemble parts in reverse order from the sequence in
which they were are removed.

Clean and inspect all parts. Replace worn or damaged
parts with new parts as required.

Assemble PTFE bellows (42) and O-ring (43) into PRV
housing (44).

Assemble PRV cylinder (46) to PRV Housing (44).

Assemble O-ring (48) to piston assembly (45 and 47).

Assemble piston assembly (45 and 47), spring (49) and
PRV cap (50).

Install O-ring (41) onto PRV housing (44) and PRV return
Manifold (66).

Assemble inlet of PRV housing (44) to Outlet PRV Mani-
fold (63) and install clam shell (37) with carriage bolts (38)
and nuts (39).

Assemble outlet of PRV housing (44) to PRV return Man-
ifold (66) and loosely install clam shell (37) with carriage
bolts (38) and nut (39).

Assemble PRV return Manifold (66) to inlet PRV Manifold
(65) and ensure O-ring (58) is in place.

Reconnect 3/8” OD tube (184) to push-to-connect fitting
(51) installed in PRV housing (44).
CAUTION
The PRV is intended only to protect
the pump from rapid deadhead events and should
not replace any system level protection that may
be needed downstream of the pump.