 Pressure and Temperature Limits
Models 912, 913 – Steam
3 to 250 psig [-20 to 17 barg]1
-60° to 406°F [-51° to 208°C]
Model 912 – Air/Gas/Liquid
3 to 300 psig [-20 to 21 barg]
-60° to 406°F [-51° to 208°C]
Model 913 – Air/Gas/Liquid
3 to 900 psig [-20 to 62 barg]
-60° to 406°F [-51° to 208°C]
Vacuum – 6- through 29-inch HG
[200 through 1000 mbarg] – 300°F [149°C]
Maximum back pressure 50 psig [3 barg]
-threaded cap and packed lever
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.
·Optional materials for low temperature
-cryogenic applications.
·Oil/gas separators.
·Overpressure relief and protection of pumps, tanks, lines and hydraulic systems.
·By-pass relief or pressure regulation.
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Features and Benefits
·Available with soft seat.
·Threaded cap is standard (back pressure tight).
·Hex on valve on valve nozzle provides for easy installation.
·Single control ring offers easy adjustability of blowdown.
·Pivoting disc design corrects misalignment and offers exceptional performance.
·Guide to nozzle ratio reduces friction.
·Full nozzle design for optimum flow performance.
·Threaded side outlet for piped off discharge to eliminate fugitive emissions.
Model Descriptions
Model 912: Full nozzle design. SS warn ring and disc with brass/bronze base. Bronze brass body and bonnet.
Model 913: Full nozzle design. Bronze/brass body and bonnet. 316 SS trim (base, disc and disc holder).
Options
·Threaded cap. (Variation 01)
·Threaded cap with gag. (Variation 02)
·Plain lever. (Variation 03)
·Plain lever with gag. (Variation 04)
·Plain lever with vibration dampener. (Variation 05)
·Packed lever. (Variation 06)
·Packed leveer with gag. (Variation 07)
Note
1.ASME standard valves for air or steam service must have lift lever. For steam boilers and generators. |
