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OPERATOR'S MANUAL
INCLUDING: OPERATION, INSTALLATION AND MAINTENANCE.
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.
5-125 PSI WORKING RANGE
27520-000
27521-000
27522-000
SERVICE KITS
Use only genuine ARO replacement parts to assure compati-
ble pressure rating.
OPERATION
To adjust back pressure, turn Y23-72-B screw clockwise with
Y106-105 allen wrench which is furnished with unit. To de-
crease pressure, turn Y23-72-B screw counter clockwise. (Does
not apply to Model 27521-300.) To adjust pressure on Model
27521-300, regulate air pressure to back side of diaphragms
using auxiliary port on 104135 cap.
SERVICE HINTS
If outlet pressure rises or creeps, check (D) seat assembly
y
and (F) ball for foreign material. If (D) seat assembly and
(F) ball appear to be worn or eroded, they should be re-
placed. (See Figure 2).
If material is leaking through bleed hole in 29919 housing
y
and nut assembly, replace 29000 and 90860 diaphragms.
(Does not apply to model 27521-300).
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276
FAX (800) 892-6276
arozone.com
FLUID REGULATOR
OPERATING OR SERVICING THIS EQUIPMENT.
The original language of this manual is English.
STANDARD CAPACITY
STAINLESS STEEL
DOWNSTREAM TYPE
MAXIMUM INLET PRESSURE 750 PSI (51.7 BAR)
1/4" INLET/OUTLET
THIS MANUAL COVERS THE FOLLOWING MODELS
0-50 PSI WORKING RANGE 10-250 PSI WORKING RANGE 0-30 PSI WORKING RANGE
27520-100
27521-100
27522-100
© 2018
CCN 99565392
27520-200
27521-200
27522-200
27521-300
FIGURE 1
2752X-X
RELEASED:
11-13-74
REVISED:
7-26-18
(REV: F)
27520-400
27521-400
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Table of Contents
Related Manuals for Ingersoll-Rand ARO 2752 Series
Summary of Contents for Ingersoll-Rand ARO 2752 Series
- Page 1 OPERATOR’S MANUAL 2752X-X INCLUDING: OPERATION, INSTALLATION AND MAINTENANCE. RELEASED: 11-13-74 REVISED: 7-26-18 (REV: F) FLUID REGULATOR READ THIS MANUAL CAREFULLY BEFORE INSTALLING, OPERATING OR SERVICING THIS EQUIPMENT. It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference. The original language of this manual is English.
- Page 2 OPERATING AND SAFETY PRECAUTIONS Read and heed all Warnings, Cautions, and Safety Precau- DISASSEMBLY HAZARD. DO NOT DISASSEMBLE WARNING tions before operating this pump. THIS REGULATOR WHEN IT IS UNDER PRESSURE. RELIEVE Use only genuine ARO replacement parts to assure compat- ALL MATERIAL PRESSURE IN THE PUMPING SYSTEM BEFORE ible pressure rating and longest service life.
- Page 3 PARTS LIST / 27520-XXX, 27521-XXX AND 27522-XXX Y23-72-B SET 104135 SCREW 29919 SPRING AND NUT Y154-54-C (4) HOUSING ASM CAP SCREW Y154-56-C (2) CAP SCREW Y154-56-C (2) Y22-10-C (6) Y154-54-C (4) CAP SCREW CAP SCREW Y14-10-C (6) LOCKWASHER MODEL 27521-300 ONLY "B"...
- Page 4 DIMENSIONAL DATA ” 3.062 77.92 mm 3.500” 88.90 mm 5.338” 135.58 mm FIGURE 3 PN 97999-674 Page 4 of 4 2752X-X (en)
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