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Boiler Gages and Boiler Valves For Pressures 900 to 1600 W.S.P.

  • Intro
  • Gage Models
  • Valve Models
  • Gage Assemblies
wpeC.jpg (31638 bytes)Jerguson Boiler Gages and Valves are rugged, high-quality products constructed of the finest materials.  Assemblies are designed and built for years of dependable operation.  They meet A.B.S. and U.S.C.G. regulations and A.S.M.E. Sec. 1, code requirements for use on fired pressure vessels.

Boiler Water Gage and Valve Assemblies are designed and built for years of dependable operation. Compare their exclusive combination of design and construction features... tempered glass... high quality mica shields... Grafoil gaskets... spring washers... 360 degree rotatable flanges... easy to read, continuous visibility... valves with outside stem and yoke... replaceable seats and backseating stems.

 And, each assembly is complete with necessary expansion loops lever or chain wheel valve operators. All Jerguson boiler water level gage assemblies meet the requirements of the U.S. Coast Guard, A.S.M.E. Code and A.B.S. Regulations... have proven their dependability throughout the industry.  

Flat Glass Gages

Jerguson Gages for 300 W.S.P. thru 750 W.S.P. are available with the 10-1/4" or 12-5/8" visible glass.  Gages are equipped with polished end stems which fit into the outlet stuffing box connections of the valves.  The stuffing boxes allow the end stems to slip slightly to allow for a differential in expansion rate between the drum and the gage assembly.

wpe15.jpg (22598 bytes)Numbers 103 and 123 gages are for the 300 W.S.P. and are available in both transparent and reflex design.  For working pressures over 300 W.S.P. the use of a mica shield between the glass and steam is recommended.  Thus, the use of reflex gages is not recommended for higher pressures.  Gages for pressures over 300 W.S.P. are offered in the transparent type only.

Numbers 107 and 127 are for 750 W.S.P. 

A mica shield protects the glass from the effects of high Ph and erosion caused by condensate rolling down the glass.   Jerguson uses only the highest quality mica with a minimum of vegetable stain and air inclusions to assure long life and good visibility.

All flat glass gages are constructed with chambers machined from solid bar stock carbon steel. Tempered glasses are manufactured under carefully controlled conditions which produce an exceptionally strong glass, resistant to both thermal and mechanical shock.

Units are assembled and maintained at the proper clamping load by special alloy steel bolts and nuts.  Gage glasses rest on recessed gaskets between the chamber and cover.

Boiler Gage Model Numbers:

Pressure Rating Gage Model Visible Range Glass Type Gage Connection
300 WSP 103 10-¼" Reflex End Stem
103 10-¼" Transparent End Stem
123 12-5/8" Reflex End Stem
123 12-5/8" Transparent End Stem
900 WSP SG-109B 10" Transparent Flanged
SG-189B 18" Transparent Flanged
1100 WSP SG-1011B 10" Transparent Flanged
SG-1811B 18" Transparent Flanged
1600 WSP SG-1016B 10" Transparent Flanged
SG-1816B 18" Transparent Flanged

Jerguson Boiler Valves

Pressure Rating Valve Model Gage Conn. Vessel Conn. Top Bottom Drain
250 WSP 633-2 Tubular ¾" NPT 603-2 613-2 A21917
633-4 Tubular ¾" 300# RF 603-4 613-4 A21917
750 WSP 637-2 End Stem 3/4" NPT 607-2 617-2 A853
637-4 End Stem ¾" 600# RF 607-4 617-4 A853
900 WSP 739A4 Flanged ¾" 600# RF 709A-4 719A-4 A16376
739B4 Flanged ¾" 900# RF 709B-4 719B-4 A16775
1100 WSP 7311B4 Flanged ¾" 600# RF 7011B-4 7111B-4 A16376
7311C4 Flanged ¾" 900# RF 7011C-4 7111C-4 A16775
1600 WSP 7325B-4 Flanged ¾" 1500# RF 7025B-4 7125B-4 A16775

Boiler Gage Assembly Chart:

Pressure Gage Valve Visible Range Glass Vessel Gage
Rating Model Model inches mm Type Connection Connection
250 WSP Tubular 633-2* NA NA Tubular ¾" NPT Stuffing Box
Tubular 633-4* NA NA Tubular ¾" 300# RF Stuffing Box
300 WSP 103 637-2 10¼ 260 Reflex ¾" NPT End Stem
103 637-4 10¼ 260 Reflex ¾" 300# RF End Stem
103 637-2 10¼ 260 Transparent ¾" NPT End Stem
103 637-4 10¼ 260 Transparent ¾" 300# RF End Stem
123 637-2 12-5/8 321 Reflex ¾" NPT End Stem
123 637-4 12-5/8 321 Reflex ¾" 300# RF End Stem
123 637-2 12-5/8 321 Transparent ¾" NPT End Stem
123 637-4 12-5/8 321 Transparent ¾" 300# RF End Stem
900 WSP SG-109B 739-A4 101/8 257 Transparent ¾" 600# RF Flanged
SG-109B 739-B4 101/8 257 Transparent ¾" 900# RF Flanged
SG-119B to SG-199B 739-A4 11 to 19 279 to 483 Transparent ¾" 600# RF Flanged
SG-119B to SG-199B 739-B4 11 to 19 279 to 483 Transparent ¾" 900# RF Flanged
SG-249B to SG-289B 739-A4 24 to 28 610 to 711 Transparent ¾" 600# RF Flanged
SG-249B to SG-289B 739-B4 24 to 28 610 to 711 Transparent ¾" 900# RF Flanged
1100 WSP SG-1011B 7311-B4 10-1/8 257 Transparent ¾" 600# RF Flanged
SG-1011B 7311-C4 10-1/8 257 Transparent ¾" 900# RF Flanged
SG-1111B to SG-1911B 7311-B4 11 to 19 279 to 483 Transparent ¾" 600# RF Flanged
SG-1111B to SG-1911B 7311-C4 11 to 19 279 to 483 Transparent ¾" 900# RF Flanged
SG-2411B to SG-2811B 7311-B4 24 to 28 610 to 711 Transparent ¾" 600# RF Flanged
SG-2411B to SG-2811B 7311-C4 24 to 28 610 to 711 Transparent ¾" 900# RF Flanged
1600 WSP SG-1016B 7325-B4 10-1/8 257 Transparent ¾" 1500# RF Flanged
SG-1116B to SG-1916B 7325-B4 11 to 19 279 to 483 Transparent ¾" 1500# RF Flanged
SG-2416B to SG-2816B 7325-B4 24 to 28 610 to 711 Transparent ¾" 1500# RF Flanged
 
 
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