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Pressure Instruments

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About Pressure Instruments

Pressure instruments measure the pressure of air, gas, water, oil and hydraulic fluid in pipes, tanks, compressors, pumps and machines. Pressure gauges are fitted in plants, boilers, compressed air lines, hydraulic systems, water supply and HVAC, and are used by maintenance, instrumentation and quality teams to monitor equipment and check that it runs within safe limits.

Choose the range so the normal working pressure sits in the middle third of the dial, which gives a good reading and protects the gauge from overload. Check the unit, such as bar, MPa, kg/cm2 or psi. Bourdon tube gauges are mechanical and need no power, while digital gauges give a clear reading, may record peak values and are easier to read precisely. Check the dial size, the connection thread size and type, such as G, NPT or M threads, and whether the connection is at the bottom or back. Glycerine-filled gauges damp needle vibration on pumps and compressors. Use the right material for the fluid, fit a snubber or siphon where needed, and calibrate gauges at regular intervals.

We list INSIZE bourdon tube and digital pressure gauges at prices that include GST, with a GST invoice on every order and delivery across India. Plants and maintenance teams buying several units can ask for a bulk quotation.

Questions buyers ask

What pressure range should I choose for a gauge?

Choose a range where your normal working pressure falls in the middle part of the dial, roughly half to two-thirds of full scale.

What is the difference between a bourdon tube and a digital pressure gauge?

A bourdon tube gauge is mechanical and needs no power. A digital gauge shows a numeric reading and may record peak values.

How do I match the gauge connection?

Check the thread size and type, such as G, NPT or metric, on the product page and match it to your fitting.

Do prices include GST?

Yes. Prices include GST and every order gets a GST invoice.