AIR
PREPARATION
PRODUCTS
4
APP-121
For further information www.norgren.com
PORT SIZE: 1/2"
SPRING RANGE: 5 to 125 psig (0.3 to 8.6 bar)
INLET PRESSURE: 150 psig (10.3 bar)
WATER FLOW CHARACTERISTICS
0 8 16 24 32 40 litres/min
WATER FLOW
0 2 4 6 8 10 US gal./min
OUTLET
PRESSURE
8
6
4
2
0
bar
100
80
60
40
20
0
psig
PORT SIZE: 1/4"
SPRING RANGE: 5 to 125 psig (0.3 to 8.6 bar)
INLET PRESSURE: 150 psig (10.3 bar)
WATER FLOW CHARACTERISTICS
0 4 8 12 16 20 litres/min
WATER FLOW
0 1 2 3 4 5 US gal./min
OUTLET
PRESSURE
8
6
4
2
0
bar
100
80
60
40
20
0
psig
Typical Performance Characteristics
R43Dim
A
B
C
E
F F
A
B
D
E
Panel mounting hole diameter: 1.89" (48 mm)
Maximum panel thickness: 0.19" (5 mm)
Service Kits
Typical Performance Characteristics
PORT SIZE: 3/4", 1"
SPRING RANGE: 5 to 125 psig (0.3 to 8.5 bar)
INLET PRESSURE: 100 psig (6.9 bar)
WATER FLOW CHARACTERISTICS
0 20 40 60 80 100 lpm
WATER FLOW
0 5 10 15 20 25 30 gpm
OUTLET
PRESSURE
8
6
4
2
0
bar
100
80
60
40
20
0
psig
R43
11-009
Port Size A B C D E F
1/4", 3/8" 2.76 (70) 1.52 (39) 4.86 (124) 5.75 (146) 1.21 (31) 2.31 (59)
1/2" 3.34 (85) 1.59 (41) 5.01 (127) 5.90 (150) 1.28 (33) 2.44 (62)
Item Type Part number
Service Kit For 1/4" and 3/8" ported units 5298-03
For 1/2" ported units 5298-10
Service kit includes diaphragm, o-rings, valve, valve spring.
Service Kits
Type Part number
Non-relieving 2436-03
Service kit includes diaphragm, valve seat, valve pin, valve pin gasket,
valve, valve spring, and o-rings.
9.50
(241)
5.00 (127)
1.62
(41)
R43 Water Pressure Regulator
1/4", 3/8" and 1/2" Port Sizes
Dimensions in inches (mm)
