Steam Monitor Pressure Switch

 

WE CAN TAKE THE HEAT

FOR YEAR’S THEY’VE BEEN BURIED IN THEIR WORK AND FORGOTTEN. THAT’S BECAUSE SIMPLE SWITCHES PERFORM... AND PERFORM...AND PERFORM...AND PERFORM...AND PERFORM...

The Steam Monitor is a “Bourdon Tube” pressure switch designed specifically to withstand the High Heat & Corrosive conditions of Steam service. Our switches are commonly used as a reliable feedback component on an Energy Management System. This “Fixed Deadband” pressure switch is typically mounted directly onto a steam line near a steam trap and is available in both indoor & outdoor models. These switches can be used on continuous & seasonal applications. All Steam Monitor pressure switches are factory set to customer requirements, or can be field-adjusted with a special wrench supplied with each unit.

Manufacturers of quality industrial pressure controls.

Series P switches are supplied with a cover for dust protection and a “BX” cable fitting to facilitate wiring. All Simple Switches may be ordered factory set, or may be easily adjusted in the field with the special wrench supplied with each switch.

Model P: General Purpose Pressure Switch

Series P switches are supplied with a cover for dust protection and a “BX” cable fitting to facilitate wiring. All Simple Switches may be ordered factory set, or may be easily adjusted in the field with the special wrench supplied with each switch.

Model C: Chassis Mount

The C model is only 2 1/2” x 1 7/8” x 1 1/4” and is ideally suited to installations inside junction boxes and equipment where space is limited, or where a cover is not necessary. This mount is available on all simple switches.

Model V: Vacuum Series

This V model utilizes the same reliable bourdon tube mechanism as our pressure switches. Specify setting and model PV (with cover) or model V (without cover).

Model R: Reset Switch

The model R is a reset pressure control switch designed for overload protection, cut off, or as a safety switch. Each switch automatically actuates at the pre-set pressure and remains until the button is pressed to reset the switch.

Bourbon Tube Pressure Switch

Used for steam, energy management, HVAC, & industrial process applications. High temperature-400 deg.F continuous, fixed deadband.

The Steam Monitor is a “Bourdon Tube” pressure switch designed specifically to withstand the High Heat & Corrosive conditions of Steam service. Our switches are commonly used as a reliable feedback component on an Energy Management System. This “Fixed Deadband” pressure switch is typically mounted directly onto a steam line near a steam trap and is available in both indoor & outdoor models. These switches can be used on continuous & seasonal applications. All Steam Monitor pressure switches are factory set to customer requirements, or can be field-adjusted with a special wrench supplied with each unit.

Standard Features

All Models

  • Designed Specifically for Steam Applications.
  • High Temperature Construction.
  • Corrosion Resistant Components.
  • SPDT Electrical Switches with Gold Plated Silver Contacts are U.L. Rated for Ultra-Low Voltage DC up to High Voltage AC Applications.
  • 1 /8’’ Female NPT Pipe Connection.
  • Engraved Metal Technical Data Nameplate Identifications.
  • All Product is Pre-Set at the Factory to Provide Fast Installation.
  • Full Replacement Warranty.
  • All Models Factory Stock.

Indoor Models

  • BX Conduit Electrical Entrance Standard.
  • Provided with cover for dust protection.
  • Boiler paint finish - dark green.
  • Switch w/cover is 3” Diameter x 2” Ht.

Outdoor Models

  • Pressure Switch Mounted in NEMA 4 Electrical Enclosure for Outdoor Use.
  • Special High-temperature Watertight Cover Gasket.
  • High-Temperature Compression Nut type electrical entrance fitting standard.
  • Powder coat paint finish - medium gray
  • Switch enclosure is 4.50”L x 2.88”W x 2.62”Ht. plus mounting feet (5.50”L overall)

Stocked Accessories

  • High Temp Insert Bushings for Control Wire Entrances for use with or without conduit.
  • Pressure ln(et Pipe Nipple/Reducer Combinations for Customized Mountings.
  • NEMA 4 Electrical Enclosure Kit for field conversion of SMP Model to Outdoor use. Only minor assembly required.
  • 1 O & 15 amp rated electrical switches available.
  • All Accessories Pre-Assembled for FasVEasy Field Installations.
  • Other Accessories are Available Upon Request.

Specifications

Electrical Data

All J.E.Miller Simple vacuum and pressure switches incorporate Underwriter Labs and CSA Electrical Components. The switches are single pole, double throw snap action with screw terminals for connecting wire leads. The rating is 15 amp 15/230/460 V.A.C.

When close differentials (Close differentials are 5lbs. and under) are specified the switch supplied is 10 amp., 115/230/460 V.A.C. Switch life expectancy exceeds one million cycles.

Common Specifications to all Simple Switches

Series Proof Pressure PSI Operating Limits PSI Series Differential PSI
300 75 2-50 1
301 200 4-100 2.5
302 300 20-200 5
304 1500 200-1000 20
Vaccum 75 4" to 30" HG 2
312* 300 4-150 5

* - This series 312 switch has a stainless steel Bourdon and all parts contacting pressure media are of stainless steel for applications involving corrosive gases and liquids. They are supplied in model P enclosed or model C open type.

Mechanical Data

Pressure connections 1/8” N.P.T. internal, located at bottom of switch enclosure.

Dimensions:
Model P, V, and R have removable cover for wiring and adjustments. Completely enclosed, 3” Dia., 2” high.

Model C open type, 2 1/2” long, 1 7/8” wide, 1 1/4” high.

Ordering Information

Specify model (such as P, C, V or R). series number, pressure setting (if desired), and differential. If differential is not specified the standard differential will be supplied. The actual net weight is approximately 9 oz.
 

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