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FORGED STEEL GAUGE VALVES
For Steam** Pressure up to 1500 PSI
The steel valve is lever-operated, outside screw and yoke design, and is recommended for steam service
up to 1500 PSI @ 600°F. Forged steel body to ASTM A105 specification. Supplied with 303 SS and 420F replacement seat. Stem and nipple packing rings are secured by identical two-bolt packing yokes. Quadruple stem thread permits full open or shut position in one-quarter turn. Bronze stem bushing prevents seizing, and is located outside of valve body, thus unaffected by high temperature or corrosive fluids. Bottom of lower valve contains 1/2” pipe tap and female socket weld connection for gauge blowdown.
The EFI SG854 valves have 3/4” male pipe connections, while the EFI SG860 valves are fitted with ASME 3/4” 900# RF* flanges. EFI SG855 valves have the same connections as the EFI SG854, but feature a union connection on the tail piece. Special connections can be furnished on request.
Complete set includes two 5-foot lengths of chain, with handles to indicate open or closed position of valves, as required by the ASME Boiler Code.
When ordering: Specify Ernst Flow Industries Model number, 3/4” threaded or flanged connection. Specify gauge centers, operating pressure and temperature.
**WARNING: For use with POWER BOILER SATURATED STEAM APPLICATIONS ONLY. MODEL EFI SG STEEL GAUGE VALVES ARE NOT TO BE USED WITH SUPERHEATED STEAM.
Graphite Packing Cartridges
Part Number
Description
EFI SG854-4
EFI SG854-5
Operating Stem
Gauge End Stem
*300 or 600 lb flanges optional

3/4” Threaded Connection
EFI SG854

3/4”Threaded Union
EFI SG855
Flanged Connection
EFI SG860

Model
Connection Size & Type
Ball Check Lower
Ball Check Higher
Gauge Connection
Approx. Weight Per Set (lbs)
Union
Max. Pressure
EFI SG854
EFI SG855
EFI SG 860
3/4" NPT Male
3/4" NPT Male
3/4" 900# RF*
No
Yes
No
No
Yes
No
No
Yes
No
3/4" OD Nipple
3/4" OD Nipple
3/4" OD Nipple
1500 PSIG
1500 PSIG
1500 PSIG
15
16
25
*ASME B16.5 Class 300 or 600 flanges optional
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