Pressure gauges with tubular spring (Bourdon tube)

Production:: WIKA (Germany)

Tubular spring represent a circular bent tube with an oval cross section. Fluid pressure acts on the inner side of this tube, resulting in an oval cross-section takes an almost circular shape. In the result of the curvature of the spring tube, stresses are induced in the rings of the tube to unbend the spring. Not clamped end of the spring executes a movement proportional to the pressure. The motion passed by a hand mechanism for a scale.

To measure pressure up to 40 or 60 bar is applied, as a rule, bent with an angle of spiral of about 270 degrees. circular spring. For pressure measurements, with higher values used springs with several superimposed windings and the same winding diameter (coil spring), or with spiral coils lying in the same plane (flat spiral spring). Tubular springs have a relatively low thrust force. Therefore overload protection can be performed only with restrictions.

the Readings are in the range from 0 ...0,6 to 0 ... 4000 bar with accuracy (class) from 0.1 to 4.0%.

Pressure gauge type 111.10 Production: WIKA (Germany)
	Application: for gaseous and liquid media, low viscosity, not crystallizing, not aggressive to copper alloys; Measuring range: 0...0.6 to 0...400 bar; Accuracy class: 2,5 %(1,6 % - to order); Units: bar, kg/cm²,MPa;
Pressure gauge type 111.12 Production: WIKA (Germany)
	Application: for gaseous and liquid media, low viscosity, not crystallizing, not aggressive to copper alloys; Measuring range: 0...0.6 to 0...400 bar; Accuracy class: 2,5 %(1,6 % - to order); Units: bar, kg/cm²,MPa;
Pressure gauge type 111.16 Production: WIKA (Germany)
	Application: for gaseous and liquid media, low viscosity, not crystallizing, not aggressive to copper alloys; Measuring range: 0...0.6 to 0...400 bar; Accuracy class: 2,5 %; Units: bar, kg/cm²,MPa;
Pressure gauge type 111.11 Production: WIKA (Germany)
	Application: equipment used in welding, cutting and similar processes; Measuring range: 0...0.6 to 0...400 bar; Accuracy class: 2,5 %(1,6 % - to order); Units: bar, kg/cm²,MPa;
Pressure gauge type 113.13 Production: WIKA (Germany)
	Application: Measuring points with high dynamic pressure loads or vibrations; Measuring range: 0...1 to 0...400 bar; Accuracy class: 2,5 %; Units: bar, kg/cm²,MPa;
Pressure gauge type 213.53 Production: WIKA (Germany)
	Application: Unfavourable operating conditions, pulsation and vibration; Measuring range: 0...0.6 to 0...400 bar; Accuracy class: 1,0, 1,6 %; Units: bar, kg/cm²,MPa;
Pressure gauge type 131.11 Production: WIKA (Germany)
	Application: for aggressive or gaseous media, liquid media, which do not clog the measuring system; Measuring range: 0...1 to 0...1000 bar; Accuracy class: 2,5 %; Units: bar, kg/cm²,MPa;
Pressure gauge type 212.20 Production: WIKA (Germany)
	Application: sturdy design for industrial applications, designed in compliance with industrial safety requirements; Measuring range: 0...0.6 to 0...600 bar; Accuracy class: 1,0 %; Units: bar, kg/cm²,MPa;
Pressure gauge type 232.50, 233.50 Production: WIKA (Germany)
	Application: processing industries: chemicals/petrochemicals, power sector, onshore and offshore mining, environmental technology, mechanical engineering and machinery; Measuring range: 0...0.6 to 0...1600 bar; Accuracy class: 1,0, 1,6 %; Units: bar, kg/cm²,MPa;
Pressure gauge type 232.30, 233.30 Production: WIKA (Germany)
	Application: increased security requirements, processing industries: chemicals/petrochemicals, power sector, onshore and offshore mining, environmental technology, mechanical engineering and machinery; Measuring range: 0...0.6 to 0...1600 bar; Accuracy class: 1,0, 1,6 %; Units: bar, kg/cm²,MPa;
Pressure gauge type 213.40 Production: WIKA (Germany)
	Application: measuring points with high dynamic pressure loads or vibrations; Measuring range: 0...0.6 to 0...1000 bar; Accuracy class: 1,0, 1,6 %; Units: bar, kg/cm²,MPa;
Pressure gauge type 214.11 Production: WIKA (Germany)
	Application: for gaseous and liquid media, low viscosity, not crystallizing, not aggressive to copper alloys; Measuring range: 0...0.6 to 0...400 bar; Accuracy class: 1,0, 1,6 %; Units: bar, kg/cm²,MPa;
Pressure gauge type 222.30, 223.20 Production: WIKA (Germany)
	Application: high pressure, processing industries: chemicals/petrochemicals, power sector, onshore and offshore mining, environmental technology, mechanical engineering and machinery; Measuring range: 0...2000 to 0...7000 bar; Accuracy class: 1,0 %; Units: bar, kg/cm²,MPa;
Pressure gauge type 232.36, 233.36 Production: WIKA (Germany)
	Application: in terms of the random, short-term overloads, reaching 4-fold range values, processing industries: chemicals/petrochemicals, power sector, onshore and offshore mining, environmental technology, mechanical engineering and machinery; Measuring range: 0...0.6 to 0...40 bar; Accuracy class: 1,0 %; Units: bar, kg/cm²,MPa;
Pressure gauge type 312.20 Production: WIKA (Germany)
	Application: high-precision measurement for laboratories; Measuring range: 0...0.6 to 0...600 bar; Accuracy class: 0,6 %; Units: bar, kg/cm²,MPa;
Pressure gauge type 342.11 Production: WIKA (Germany)
	Application: high-precision measurement for laboratories; Measuring range: 0...1 to 0...1600 bar; Accuracy class: 0,1 %; Units: bar, kg/cm²,MPa;
Pressure gauge type 332.30, 333.30 Production: WIKA (Germany)
	Application: high-precision measurement for laboratories; Measuring range: 0...0,6 to 0...1600 bar; Accuracy class: 0,6 %; Units: bar, kg/cm²,MPa;