Norgren R43 Series - Manual

See Section ALE-24 for Accessories
Littleton, CO USA Phone 303-794-2611 www.norgren.com ALE-5-10
R43
● Non-relieving models
● Brass body, corrosion resistant construction
● Balanced valve minimizes effects of inlet pressure
variations on outlet pressure
● T-bar adjustment standard, nonrising knob
adjustment optional
● Full flow gauge ports can be used as auxiliary outlets
● Panel mounting nut standard
● Can be disassembled without the use of tools or
removal from the air or water line.
Water and Compressed Air Service Pressure
Regulator 1/4", 3/8" and 1/2" Port Sizes
ISO Symbols
Non relieving
Alternative Models 4 R 3 ★ ★ ★ ★ ★ - ★ ★ -
Port Size Substitute
1/4" 2
3/8" 3
1/2" 4
Outlet Pressure Adjustment Range* Substitute
5 to 50 psig (0.3 to 3.5 bar) E
5 to 125 psig (0.3 to 8.6 bar) L
15 to 250 psig (1 to 17 bar) S
Gauges Substitute
With G
Without N
Diaphragm Substitute
Non relieving N
Adjustment Substitute
Knob 00
T-handle with 1/4" and 3/8" ports 01
T-handle with 1/2" ports 06
Ordering Information . Models listed have T-handle adjustment, 5 to 125 psig (0.3 to 8.5 bar) outlet pressure adjustment range*, and PTF
threads. A gauge is not included.
Port Model Flow † U.S. gpm (lpm) Weight lb (kg)
1/4" R43-201-NNLA 6 (23) 2.4 (1.09)
3/8" R43-301-NNLA 6 (23) 2.4 (1.09)
1/2" R43-406-NNLA 9 (34) 2.4 (1.09)
Threads Substitute
PTF A
ISO Rc taper B
ISO G parallel G
* Outlet pressure can be adjusted to pressures in excess of, and less than, those
specified. Do not use these units to control pressures outside of the specified
ranges. † Typical flow with 150 psig (10 bar) inlet pressure, 90 psig (6.3 bar) set pressure
and 15 psig (1 bar) droop from set.