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Models
910, 911, 916, 917, 920, 921, 927
ASME Section VIII, Air/Gas/Steam/Liquid,
'UV' national Board Certified. Also available for vacuum
service.
Model Descriptions
- Model 910: CS body and bonnet
with SS trim.
- Model 911: All SS construction.
- Model 916: Same as Model 910
except resilient seat/seals. Superior 'leak-free'
performance.
- Model 917: Same as Model 911
except resilient seat/seals. Superior 'leak-free'
performance.
- Model 920: Steel body and
bonnet with screwed cap and stainless steel spring
for organic fluid vaporizers (ASME Section I - 'V'
Special Use or application). 800 psig maximum set
pressure.
- Model 921: Steel body and
bonnet with plain lift lever and stainless steel
spring for forced flow steam generators (ASME
Section I - 'V' Special Use or application). 800
psig maximum set pressure.
- Model 927: Steel body and
bonnet with packed lift lever and SS spring for high
temperature/pressure hot water boilers (ASME Section
I - 'V' Special Use or application). 800 psig
maximum set pressure.
Pressure and
Temperature Limits
See Catalog PDF for Pressure and Temperature Limits
Applications
- Air/gas compressors, intercoolers, aftercoolers
- Liquid filled pressure vessels/systems, ASME
Section VIII (UV).
- Pressure vessels - containing gas, air, liquid
or steam, including tanks and receivers.
- Vacuum systems including pumps, tanks and
equipment.
- Oil/gas separators.
- Overpressure relief and protection of pumps,
tanks, lines and hydraulic systems.
- Bypass relief or pressure regulation.
- All stainless steel Model 911 valves may be
suitable for sanitary/edible applications.
Options
- Threaded cap
- Threaded cap with gag
- Plain lever
- Plain lever with gag
- Plain lever with vibration dampener
- Packed lever
- Packed lever
- Packed lever with gag
Features and
Benefits
- Available with soft seats.
- Threaded cap standard (back
pressure tight). Maximum back pressure 50 psig [3.4
barg].
- Hex on valve nozzle provides
for easy installation.
- Single control ring offers easy
adjustment of blowdown.
- Pivoting disc design offers
exceptional seat alignment.
- Guide to nozzle ratio reduces
friction.
- Valve bodies are heavy duty
castings.
- Full nozzle design for optimum
flow performance.
- Threaded side outlet for piped
off discharge to eliminate fugitive emissions.
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