Benefits & Features

  • Continuous visual observation of liquid level with no power requirements (power only required for optional sensors)
  • Safety Automatic Ball Checks protect against potential process material loss
  • Offset configuration for maximizing visible glass in side or back connection configurations
  • Product design and floating shanks allow for at least 3/8” tolerance for specified vessel centers (for 1/2″ and 3/4” only)
  • Excellent valves for adding flanged union vessel connections
  • Suitable for vacuum service (with Ball checks removed)
  • Low maintenance
Standard Specifications
Style, Connection & BodyBody Material (Wetted)Union Vessel Connections (MNPT)Gauge Connections (1/2” FNPT)Automatic Ball ChecksDrain & Vent Port (FNPT)Stem SeatStandard Pressure Ratings** (PSIG)
Non-SteamSaturated Steam
-300°F to 100°F750°FUp to 434°F
450-04-ACarbon Steel1/2”Rigid or UnionYes1/2” OpenIntegral40002620350
450-05-ACarbon Steel3/4”Rigid or UnionYes1/2” OpenIntegral40002620350
450-06-ACarbon Steel1”Rigid or UnionYes1/2” OpenIntegral40002620350
460-04-ACarbon Steel1/2”Rigid or UnionYes1/2” OpenUnion Bonnet*40002620350
460-05-ACarbon Steel3/4”Rigid or UnionYes1/2” OpenUnion Bonnet*40002620350
460-06-ACarbon Steel1”Rigid or UnionYes1/2” OpenUnion Bonnet*40002620350
450-04-D316SS/316LSS1/2”Rigid or UnionYes1/2” OpenIntegral40002755-
450-05-D316SS/316LSS3/4”Rigid or UnionYes1/2” OpenIntegral40002755-
450-06-D316SS/316LSS1”Rigid or UnionYes1/2” OpenIntegral40002755-
460-04-D316SS/316LSS1/2”Rigid or UnionYes1/2” OpenUnion Bonnet*40002755-
460-05-D316SS/316LSS3/4”Rigid or UnionYes1/2” OpenUnion Bonnet*40002755-
460-06-D316SS/316LSS1”Rigid or UnionYes1/2” OpenUnion Bonnet*40002755-

*Replaceable stem seat.
**Pressure and temperature ratings are subject to the limitation of the gauges.

Rigid Union Gage Diagram

Standard Materials

Standard Material
Style, Connection & BodyBody Material (Wetted)Union Vessel Connections (MNPT)Gauge Connections (1/2” FNPT)Automatic Ball ChecksDrain & Vent Port (FNPT)Stem SeatStandard Pressure Ratings** (PSIG)
Non-SteamSaturated Steam
100°F800°FUp to 489°F
450-04-ACarbon Steel1/2”Rigid or UnionYes1/2” OpenIntegral24001323-
450-05-ACarbon Steel3/4”Rigid or UnionYes1/2” OpenIntegral24001323-
450-06-ACarbon Steel1”Rigid or UnionYes1/2” OpenIntegral24001323-
460-04-ACarbon Steel1/2”Rigid or UnionYes1/2” OpenUnion Bonnet*40001308600
460-05-ACarbon Steel3/4”Rigid or UnionYes1/2” OpenUnion Bonnet*40001308600
460-06-ACarbon Steel1”Rigid or UnionYes1/2” OpenUnion Bonnet*40001308600
450-04-D316SS/316LSS1/2”Rigid or UnionYes1/2” OpenIntegral24001323-
450-05-D316SS/316LSS3/4”Rigid or UnionYes1/2” OpenIntegral24001323-
450-06-D316SS/316LSS1”Rigid or UnionYes1/2” OpenIntegral24001323-
460-04-D316SS/316LSS1/2”Rigid or UnionYes1/2” OpenUnion Bonnet*40001308600
460-05-D316SS/316LSS3/4”Rigid or UnionYes1/2” OpenUnion Bonnet*40001308600
460-06-D316SS/316LSS1”Rigid or UnionYes1/2” OpenUnion Bonnet*40001308600

Options

  • Quick Closing Lever Handles with chains (1/4” turn)
  • Configured for ASME steam/water service
  • Double Automatic Ball Checks for vacuum applications
  • Various materials (see matrix)
  • Class 150 and 300 Flanged Connections

Application Notes

  • Saturated Steam Service: Requires standard ball checks removed or configured with ASME steam ball checks
  • Potable Water: Not suitable
  • Vacuum Service: Suitable only when automatic ball checks are removed or configured with double automatic ball checks
  • Compatibility: Before ordering, verify that all the materials of construction, pressures, temperatures, and any other specifications are compatible with the design, media(s), cleaning solutions, and the environment of the application and future applications. Ernst Instruments does not make compatibility recommendations. Compatibility determinations, corrosion or otherwise, are the responsibility of the user and/or specifying party.

Warning WARNING: This product can expose you to certain chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov

Parts

Hastelloy® is the registered trademark name of Haynes International, Inc.

Model Number Matrix
Model Number Matrix