Norgren R91 Series - Manual (Page 2)

ALE-5-7 Littleton, CO USA Phone 303-794-2611 www.norgren.com
R91 Special Purpose Regulators
Technical Data
Fluid
R91G: Compressed air and non-potable water
R91W: Potable water, deionized water
Maximum pressure: 150 psig (10 bar)
Operating temperature
Water service: 35° to 125°F (2° to 52°C)
Air service: 0° to 125°F (-20° to 52°C) *
* When used in air service, air supply must be dry enough to avoid ice formation at temperatures
below 35 ° F (2 ° C).
Typical flow for compressed air service at 150 psig (10 bar) inlet pressure, 90 psig
(6.3 bar) set pressure and a droop of 15 psig (1 bar) from set: 24 scfm
(11 dm
3 /s).
Typical flow for water service at 100 psig (7 bar) inlet pressure, 60 psig (4 bar) set
pressure and a droop of 15 psig (1 bar) from set: 1.75 US gpm per minute
(6.6 liters)
Gauge ports:
1/8 PTF with PTF main ports
R1/8 with ISO Rc main ports
R1/8 with ISO G main ports
Materials
Body and bonnet: Acetal
Valve
R91G: Brass/nitrile
R91W: Stainless steel/food grade EPDM
Valve seat: Acetal
Valve seat o-ring
R91G: Nitrile
R91W: Food grade EPDM
Diaphragm
R91G: Acetal/nylon inserted nitrile
R91W: Acetal/nylon inserted nitrile, food grade
Gauge port plugs: Polypropylene (furnished only with PTF-ported units)
Typical Performance Characteristics
PORT SIZE 1/4"
SPRING RANGE: 5 to 50 psig (0.3 to 3.5 bar)
INLET PRESSURE: 100 psig (7 bar)
WATER FLOW CHARACTERISTICS
0 2 4 6 8 10 liters/min
WATER FLOW
0 0.5 1.0 1.5 2.0 2.5 US gal./min
OUTLET PRESSURE
4
3
2
1
0
bar
50
40
30
20
10
0
psig
PORT SIZE: 1/4"
SPRING RANGE: 5 to 125 psig (0.3 to 8.6 bar)
INLET PRESSURE: 150 psig (10 bar)
AIR FLOW CHARACTERISTICS
0 5 10 15 20 25 dm 3 /s
AIR FLOW
0 10 20 30 40 50 scfm
OUTLET PRESSURE
100
80
60
40
20
0
psig
8
6
4
2
0
bar
2.13 (54)
1.50 (38)
1.63 (41)
1.50 (38)
0.9 (25)
2.54 (65)
3.01 (76)
1.1 (28)
0.73
(19)
0.90
(23)
Panel mounting hole diameter 1.19" (30 mm)
Maximum panel thickness 0.25" (6 mm)
Service Kits
Item Type Part number
Service kit R91W, non relieving 3407-93
R91G, non relieving 3407-94
R91G, relieving 3407-95
Service kit contains slip ring, diaphragm, valve seat with o-ring,
valve, and valve spring.
All Dimensions in Inches (mm)