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4
AIR
PREPARATION
PRODUC
TS
WATER REGULATORS
R91 1/4" PTF
Technical Data
» Use with deionized water and
potable water systems
» NSF/ANSI Standard 61 certified
» Non relieving models only
Flow*
6.6 (lpm)
* Typical flow with 100 psig (7 bar) inlet
pressure, 60 psig (6.3 bar) set pressure
and 15 psig (1 bar) droop from set.
Materials
Body and bonnet: Acetal
Valve: Stainless steel/
food grade EPDM
Valve seat: Acetal
Valve seat o-ring:
Food grade EPDM
Diaphragm: Acetal/nylon
inserted nitrile, food grade
Gauge port plugs: Nylon
Fluid:
Potable water,
deionized water
Maximum pressure:
150 psig (10 bar)
Operating temperature:
Water service:
35° to 125°F
(2° to 52°C)
Gauge ports:
1/8 PTF with
PTF main ports
* Kit includes: Diaphragm, slip ring, valve seat with O-ring, valve and valve spring.
R91 Series
Model No.
Port
size
Outlet pressure
adjustment range
psig
Wall mounting
bracket and
panel nut
Mounting
nut
Service kit*
R91W-2AK-NEN 1/4" PTF 5 to 50 18-025-003 2962-89 3407-93
R91W-2AK-NLN 1/4" PTF 5 to 125 18-025-003 2962-89 3407-93
Models Accessories
More info and CAD available online at:
norgren.com
