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91000XT Series Tank Thermostat

Brand: Trerice Gauges & Valves

The 91000XT Tank Thermostat is specifically designed to control the temperature of heaters, treaters and separators within the petroleum industry.

It is entirely self-contained, requires no external power source, and is the most widely preferred unit of its kind.

When installed in a treater, the fail-open valve will automatically close-off the flow of gas as temperature increases, thereby regulating temperature within the treater.

The Trerice 91000XT is ruggedly constructed with a heavy duty, die cast aluminum actuator housing and fully enclosed bellows assembly.

Its single seated, cast-iron valve body is fitted with a stainless steel plug assembly and soft seating Viton O-ring to provide tight close-off.
Features
  • Self-Operating Design
  • Heavy Duty Die Cast Aluminum Housing
  • ¾" & 1" NPT Valve Sizes
  • Soft Seated Valves for Tight Close-Off 
  • Fully Enclosed Bellows

Specifications

Power Requirements

  • Fully Self-Contained - No external Power Required

Housing

  • Die Cast Aluminum, Epoxy Powder Coated Blue Finish

Set Point Scale

  • Integral to Housing

Bellows

  • High Pressure Brass, Corrosion Resistant, Tin Plated Finish

Adjustment Screw

  • Brass

Adjustment Screw Bushing

  • Lubricant Impregnated Sintered Bronze

Range Adjustment Spring

  • Cadmium Plated

Overrange Protection

  • Upper Range Limit +100° F for Temporary Situations

Thermal System

  • Bulb: Copper, 0.80” x 8”, with 1.25-18 UNEF-2A Coupling Nut for Thermowell
  • Capillary: Copper, Available in 10' or 20' Lengths

Thermowell

  • Steel, 1” NPT Connection

Valve

  • Single Seat, Fail-Open
  • Body: Cast-Iron
  • Trim: Stainless Steel Plug Assembly with Soft Seating Viton O-Ring, Iron Seat
  • Port Size: 1/2”
  • Connection: 3/4” NPT or 1” NPT Threaded Ends

Valve Seat

  • Viton O-Ring Standard Min. Ambient Operating Temperature 5° F (-15° C)
  • For Extreme Cold Weather Conditions a NBR (Buna-N) O-Ring can be supplied
  • Minimum Ambient Operating Temperature -40° F (-40° C). Please Consult Factory

Approximate Shipping Weight

  • 10.3 lbs (4.68 kg)

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