Application of Bourdon Tube Pressure Gauge

Water Supply

Chemical Processing Plant

Agricultural Irrigation

Automotive

Marine

Aerospace

HVAC

Advantage of Bourdon Tube Pressure Gauge

Low Cost

Simple Construction

High Measurement Accuracy

Available in Wide Variety of Range

Use with Heavy Vibration Application and Dynamic Pressure Load

Reference Standards of Bourdon Tube Pressure Gauge

ANSI B40.1

EN837

Operating Principal of Bourdon Tube Pressure Gauge

This pressure gauge is attached to a pipeline at the inlet pipe (A). The inlet pipe is held in place by the socket block (B), Pressure flows into the stationary end of the Bourdon tube (C). The pressure is distributed through the C-shaped Bourdon tube (D). As a result of this pressure, the C-shape straightens. A pivot and pivot pin (E) connect the straightening movement with the sector gear (F) at the moving end of the Bourdon tube. Due to the gearing system, the movement at the moving end of the Bourdon tube is amplified so that a very slight pressure change results in a considerable motion of the indicator needle (G). Generally, the indicator moves from left to right in a circular path over a calibrated scale. A decrease in pressure will result in the Bourdon tube returning to its original position.

Category of Bourdon Tube Pressure Gauge

Standard Dry Pressure Gauge

Standard Dry Pressure Gauge is suitable for measuring the pressure of liquid, gas, steam or vacuum which are non-crystalloid and non-concretionary, and have no danger of explosion and do not erode steel and copper alloy.

Nominal Size	1.5" (40), 2" (50), 2.5" (63), 3.5" (80), 4" (100), 6" (150)
Pressure Range	-1—0 to 24bar, 0—1000bar 30inHg—15000psi
Accuracy	±1%，±1.6%，±2.5%
Working Temp.	-20℃--70℃
Case	Stainless Steel, Steel, Plastic
Bourdon Tube	Phosphor Bronze
Connection	Brass or Stainless Steel
Movement	Brass or Stainless Steel
Dial	Aluminium, Black
Window	Glass or Plastic
Thread	1/8", 1/4", 3/8", 1/2" PT BSP NPT
Connection	1/2", 3/8", 1/4", 1/8" BSP NPT PT

Liquid Filled Pressure Gauge

Liquid Filled Pressure Gauge is filled with damping liquid with good performance of shock proof, it is suitable for locations where the pressure of medium changes intensely and pressure shock exists or pressure is released suddenly, it can measure the gas and liquid, ect.

Nominal Size	1.5" (40), 2" (50), 2.5" (63), 3.5" (80), 4" (100), 6" (150)
Pressure Range	-1—0bar, 0—1000bar
Accuracy	±1%，±1.6%，±2.5%
Working Temp.	-20℃--70℃
Case	Stainless Steel
Ring	Stainless Steel, Bayonet Type or Crimped Type
Bourdon Tube	Phosphor Bronze or Stainless Steel ≤60bar: C Type >60bar: Helical Type
Connection	Brass or Stainless Steel
Movement	Brass or Stainless Steel
Dial	Aluminium, Black
Window	Glass or Plastic
Thread	1/8", 1/4", 3/8", 1/2" PT BSP NPT
Connection	1/2", 3/8", 1/4", 1/8" BSP NPT PT
Fill	Glycerine (Standard) SiIicone (Optional)
Gasket/Filling Cap	Neoprene or Silica Gel

Stainless Steel Pressure Gauge

Stainless Steel Pressure Gauge is suitable for measuring the pressure of liquid, gas and stem or vacuum, which are non-crystalloid and non-concretionary, and have no danger of explosion and do not erode steel.

Nominal Size	1.5" (40), 2" (50), 2.5" (63), 3.5" (80), 4" (100), 6" (150)
Pressure Range	-1—0bar, 0—1000bar
Accuracy	±1%，±1.6%，±2.5%
Working Temp.	-20℃--70℃
Case	Stainless Steel with Pressure Vent
Ring	Stainless Steel, Bayonet Type
Bourdon Tube	Stainless Steel ≤60bar: C Type >60bar: Helical Type
Connection	Stainless Steel
Movement	Stainless Steel
Dial	Aluminium, Black
Window	Glass
Thread	1/8", 1/4", 3/8", 1/2" PT BSP NPT
Connection	1/2", 3/8", 1/4", 1/8" BSP NPT PT
Fill	Glycerine (Standard) SiIicone (Optional)
Gasket/Filling Cap	Neoprene or Silica Gel

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