DIAPHRAGM PRESSURE GAUGES | | |
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Brief introduction: | | | |
Diaphragm pressure gauge is composed of a conventional pressure measuring |
instuments,a connector and a diaphram seal .this combination enables a general |
purpose pressure gauge to measure media of stong corrosion,high temperature, |
high viscosity,containing suspended matter or crystallizing. | |
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Applications: | | | |
diaphragm gauges are university used in petrochemical,alkali,chemical fiber, |
pharmaceutical,metallurgical,and food industies | |
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Corrosion-proof properties | | |
Choose various pressure gauges combined with appropriate separator according to |
enviromental conditions.Choose material of diaphragm and housing compatible with |
corrosive media. | | | |
Diraphragm meterial:0Cr17N112M02(316);MONEL(Cu30Ni70);Hastelloy(H276c); |
TANALUM(Ta);Fluoroplastic(F4) | | |
Flange material:0Cr17N112M02;316+F4 | | |
Seals material:Nitrile Rubber;Viton,Silicone rubber;Fluoroplasitc | |
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Configuration principle: | | |
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This illustraiton shows the operating principle of the diaphragm pressure gauge. |
the diaphragm is deflected by the pressure of medium P,and an equivalent |
pressure P" is generated.with transmitting through working fluid,the pressure P' |
deflect the elastic element of a pressure measuring instrument which thereafter |
shows the pressure value | | |
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Level Difference of diaphragm pressure gauge seals liquid | |
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When a diaphragm pressure gauge is mounted with pressure gauge and diaphragm |
seal at different positions,the effect of level difference should be taken into |
consideration(especially for a diaphragm gauge with capillary).As the illustration |
shows,with a S.G.of the working fluid at approx.1 and a level differnce of 1m, |
the pressure difference is approx 0.01mpa/cm2 | | |