R91
G1/4
Technical Data
Fluid:
R91G: Compressed air and non-potable water
R91W: Potable water, deionized water
Maximum pressure: 10 bar (150 psig)
Operating temperature:
Water service: +2° to + 52°C (+35° to +125°F)
Air service: -20° to + 52°C (0° to +125°F) *
* When used in air service, air supply must be dry enough to avoid ice formation at
temperatures below +2°C (+35°F).
Typical flow:
Compressed air service:
11 dm3/s (24 scfm) at 10 bar (150 psig) inlet pressure,
6,3 bar (90 psig) set pressure and a droop of 1 bar (15 psig)
from set.
Water service:
6,6 litres per minute (1.75 US gpm) at 7 bar (100 psig) inlet
pressure, 4 bar (60 psig) set pressure and a droop of
1 bar (15 psig) from set.
Gauge ports:
1/8 PTF with PTF main ports
R1/8 with ISO Rc main ports
R1/8 with ISO G main ports
Materials:
Body and bonnet: Acetal
Valve:
R91G: Brass/nitrile
R91W: Stainless steel/food grade EPDM
Valve seat: Acetal
Valve seat o-ring:
R91G: Nitrile
R91W: Food grade EPDM
Diaphragm:
R91G: Acetal/nylon inserted nitrile
R91W: Acetal/nylon inserted nitrile, food
grade
Gauge port plugs: Polypropylene (furnished
only with PTF-ported units)
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