Norgren R41 Series Datasheets - Manual

See Section ALE-24 for Accessories
ALE-8-2 Littleton, CO USA Phone 303-794-2611 www.norgren.com
R40, R41
● Pilot regulators are used to control the outlet
pressure of a pilot operated regulator (ordered
separately)
● The pilot regulator is installed in an accessible
location in the compressed air system; pilot operated
regulator is installed at any point without regard to
accessibility
● Conventional pilot regulator provides good pressure
regulation, rapid response to changing flow
demands, and excellent stability.
● Feedback pilot regulator provides superior pressure
regulation under changing flow demands where
changes in flow demand are not sudden or cyclic.
● Constant bleed feature provides maximum sensitivity
to system changes
● Relief feature allows reduction of downstream
pressure when the system is dead-ended
R40 Conventional Pilot Regulator
R41 Feedback Pilot Regulator
1/4" Port Size
ISO Symbols
R40 Conventional Pilot Regulator
with Pilot Operated Regulator
R41 Feedback Pilot Regulator
with Pilot Operated Regulator
Ordering Information. Models listed are relieving with constant bleed, 10 to 250 psig (0.7 to 17 bar) outlet pressure adjustment range * , PTF ports.
Alternative Models
- ★ N B ★ 2 ★ - ★ ★ R ★
Threads Substitute
PTF A
ISO Rc taper B
ISO G parallel G
Type Substitute
R40 Conventional 40
R41 Feedback 41
Mounting/Type Substitute
Remote/R40 Conventional 00
Remote/R41 Feedback 04
Outlet Pressure Adjustment Ranges* Substitute
2 to 50 psig (0.1 to 3.5 bar) R40 only E
5 to 125 psig (0.3 to 8.5 bar) R40 only L
10 to 250 psig (0.7 to 17 bar) S
Port Size Type Model Flow † scfm (dm 3 /s) Weight lb (kg)
1/4" Conventional Pilot R40-200-BNSA 6.4 (3) 1.66 (0.75)
1/4" Feedback Pilot R41-204-BNSA†† 6.4 (3) 1.66 (0.75)
† Typical flow with 100 psig (7 bar) inlet pressure, 90 psig (6.3 bar) set pressure and 15 psig (1 bar) droop from set.
†† Do not use the R41 feedback pilot regulator to control outlet pressures at or less than 100 psig (7 bar). Use the 11-104 feedback pilot regulator at those pressures.
* 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.
Feedback Pilot Regulator Warning
The feedback line must sense the pilot operated regulator outlet pressure
and must be connected before turning on the air supply. If the feedback line
is not connected, the pilot operated regulator outlet pressure will rapidly
increase to the inlet pressure when the adjusting knob on the pilot regulator
is turned clockwise.