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Precision Test Gauge
Brand: Marsh Bellofram Group of CompaniesPrecision Test Gauges from Marsh Instruments are designed to provide reliable pressure measurements in harsh and corrosive sour gas environments.
The Marsh Test Gauge is designed with a black painted steel housing and the choice of copper alloy or 316 stainless steel tube and socket to meet the demanding service needs of various test gauge applications. Accuracy is ±0.5% of full span.
A highly polished integral mirror is positioned between the two graduation arcs on the dial face. The knife-edge pointer is reflective so that, when the pointer and its reflection are in alignment, parallax is virtually eliminated and a true dial reading is assured.
Typical applications include test stands, aviation ground support petroleum, chemical, utilities, industrial vessels and panel builders.
Features- Adjustable Micrometer Knife-Edge Pointer with Mirror Dial.
- Stainless Steel Movement.
- Dial Size: 4.5”.
- Ranges to 10,000 psi.
Specifications
Accuracy
- ASME Grade A - ± 2/1/2 % (± 1 % of Range in middle half of scale)
Case Sizes
- 3-1/2” and 4-1⁄2” diameter
- 6” diameter (See options)
Case Material
- Steel, Black Painted
Case Style
- F - Front Flanged
- Lower Back Mount with U-Clamp has Hinged Ring (LBM)
- G - Back Flanged Case
- P - Plain Case, Lower Mount
Tube
- 0 to 1,000 psi: Copper Alloy
- 1,500 psi - 20,000 psi: Stainless Steel
Socket
- Copper Alloy
Movement
- Stainless Steel
Connection
- 1/2” NPT
- 1/4” NPT
Ranges
- 0 to 30” Hg Vac, Compound
- 30” Hg Vac to 300 psi, 15 to 20,000 psi
Dial Standard
- Single scale psi
Dial Color
- Black Markings on White
Pointer
- Aluminum, Black Painted
Window
- Instrument Glass
Weight
- 3-1/2”: 2.0 lb
- 4-1⁄2”: 3.0 lb
- Test stands
- Aviation ground support
- Petroleum
- Chemical
- Utilities
- Industrial vessels
- Panel builders