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Selection of Pressure Gauges

Selection Guide (Download)

Proper selection of pressure gauges is necessary for long use.

Dial Size
Mounting
Thread Size (Connection)
Accuracy Required
Operating Pressure Range
Chemical compatibility of operating media with Working Parts of Gauge
Operating Temperature Range of Media
Vibration, Pulsation and Shock

Dial Size:

ADARSH offers a wide variety of dial sizes to choose from:

40mm (1-1/2"), 50mm (2"), 63mm(2-1/2"), 100mm (4"), 150mm (6") , 200mm (8"), 250mm (10")

Mounting

Bottom Direct

Bottom Surface with back flange

Center Back or Lower Back

Panel Mount with front flange (center or lower back)

Clamp Mount (center or lower back)

Thread Size (Connection):

1/8" or 1/4" or 3/8" or 1/2" bsp or npt thread

Accuracy Required

Adarsh offers gauges with Accuracy ±0.25% F.S., ±0.5% F.S., ±1% F.S., ±1.5%, ±2-3%F.S.

Operating Pressure Range

The full scale reading of the pressure gauge should be twice the operating range.

Chemical compatibility of operating media with Working Parts of Gauge

1. Case & Ring: Adarsh offers case in material Mild Steel, Stainless Steel and Phenolic Case.

Select the case material as per the chemical compatability of the ambient conditions.

2. Wetted Parts: Available in Brass or SS316. Select as per corrosion properties of the operating media.

3. Diaphragm Seals: Use of Diaphragm Seals is a must for viscous and other corrosive media.

Please refer the Diaphragm Seals page form more information.

Operating Temperature Range of Media

Use of appropriate working parts is a must for temperature criteria:

1. Brass Working Parts (soldered): Suitable upto 65 deg C max temp.

2. Brass Working Parts (silver brazed): Suitable upto 120 deg C max temp.

3. SS316 Parts (Argon Welded): Suitable for higher temp. ranges

4. Use of Syphon: A syphon is recommended for steam and other high temperature vapours to protect the internal parts of a gauge

5. Diaphragm Seals : A diaphragm seal can be used to isolate the gauge from high temperature media.

Vibration, Pulsation and Shock

Glycerin Filling: Liquid filling is an excellent solution for vibrating and pulsation applications.

Use of Pulsation Dampner: Dampner reduces the pulsation and surges of application media.

Mounting Options: For applications involving mechanical vibration gauges the should be mounted on a seperate panel. Use of flexible hoses is also a good option.