Norgren R41 Datasheet
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 S ize
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
-
★
NB
★
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 (dm3/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.
R40 and R41 Pilot Regulators
ALE-8-3
All Dimensions in Inches (mm)
Littleton, CO USA Phone 303-794-2611 www.norgren.com
Technical Data
Fluid: Compressed air
Inlet pressure range: 10 psig (0.7 bar) to 450 psig (31 bar) maximum*
* For best performance, inlet pressure should be at least 10 psig (0.7 bar) greater than the desired
regulated pressure, but must not exceed the specified maximum.
Operating temperature: 0° to 175°F (-20° to 80°C) **
** Air supply must be dry enough to avoid ice formation at temperatures below 35°F (2°C).
Typical flow with 100 psig (7 bar) inlet pressure, 90 psig (6.3 bar) set pressure and
15 psig (1 bar) droop from from set: 6.4 scfm (3 dm3/s)
Maximum bleed rate at 50 psig (3.5 bar) outlet pressure: 0.25 scfm (0.12 dm3/s)†
†Maximum bleed rate occurs under dead-end (no flow) conditions.
Pilot ports: 1/4" PTF, ISO G, or ISO Rc
R41 feedback port: 1/8" PTF, ISO G, or ISO Rc
Materials
Body, bonnet: Aluminum
Valve: Teflon
Elastomers: Nitrile
Typical Performance Characteristics
Panel mounting hole diameter: 1.89" (48 mm)
Maximum panel thickness:0.13" (3 mm)
Service Kits
Type Part number
R40, R41 5945-41
Service kit contains diaphragm, valve spring, guide bushing, valve,
valve spring, filter screen, and all o-rings.
bar
psig
8
100
6
80
60
4
OUTLET PRESSURE
40
2
20
0
0
0 2 4 6 8 10 scfm
012345dm
FLOW CHARACTERISTICS
PORT SIZE: 1/4
INLET PRESSURE: 100 psig (7 bar)
RANGE: 5 to 125 psig (0.3 to 8.6 bar)
AIR FLOW
"
3
/s
1/8" Feedback
Port (R41 only)
0.27 (7) Dia.
(2 places) †
2.32 (59)
1.57
1/4" Pilot Port (In)
ounting holes for subbase m
† M
ir inlet for subbase m
†† A
(40)
1.14 (29)
ounting.
1.63 (42)
ounting.
3.19 (81)
2.5 (63)
2.0 (51)
1/4" Pilot
Port (Out)
OUT
5.2 (133)
2.01 (51)
1/16" Inlet ††
1.14 (29)
Loading...