The Trerice 450 Series process gauge is designed for the petrochemical and industrial process industries.

This solid front, blow-out back gauge is noted for its fiberglass reinforced polypropylene turret case and screwed ring; its sturdy interior design; and its filed liquid-fill capability (no kit required).

The 450 Series can withstand the most rugged industrial applications, while maintaining precise accuracy. Wetted parts are bronze tube/brass socket, stainless steel, or Monel.
  • 4½" Dial Size
  • ±0.5% Accuracy
  • Solid Front/Blow-Out Back
  • Field Liquid Fillable
  • Optional features available: Please consult the Options & Accessories Section for details.
  • For correct use and  application of all pressure gauges, please refer to: Pressure Gauge Standard ASME B40.100.


Dial Size

  • 4-1/2”


  • Glycerine
  • Other fills available. See Options & Accessories


  • Stainless Steel


  • Lower Male or Lower Back Male, 1/4” or 1/2” NPT


  • Fiberglass Reinforced Polypropylene, Turret, Solid Front with Blow-out Back


  • Threaded Fiberglass Reinforced Polypropylene


  • Acrylic


  • Micro Adjustable, Black Finished

Dial Face

  • Aluminum, White Background with Black Graduations and Markings

Additional Features

  • Overload and Underload Stops


  • ± 0.5 % Full Scale, ASME B40.100 Grade 2A

Maximum Temperature

  • 450B, 450SS, 450M: 250° F (121° C)
  • 450LFB, 450LFSS, 450LFM: 150° F (65° C)

Approximate Shipping Weight

  • 450B, 450SS, 450M: 2.2 lbs [1.00 kg]
  • 450LFB, 450LFSS, 450LFM: 3.1 lbs [1.41 kg]

show more