Test Gauge By A. N. Instruments Pvt. Ltd.

ELASTIC PRESSURE GAUGES INDICATE THE RELATIVE DIFFERENCE BETWEEN THE PRESSURE OF THE MEDIUM AND THE SURROUNDING ATMOSPHERE. THE CONSTRUCTION IS SIMPLE AND ROBUST; NO ADDITIONAL SOURCE OF ENERGY IS NEEDED FOR ITS OPERATION. AMONG THE EXISTING TYPES OF SENSING/ ELASTIC ELEMENTS.
* BOURDON TUBE : THESE ARE USED FOR MEASUREMENT OF PRESSURE AND VACUUM AND ARE SUITABLE FOR ALL CLEAN AND NON-CLOGGING LIQUID AND GASEOUS MEDIA. THE BOURDON TUBE IS A THIN WALLED TUBE OF OVAL CROSS SECTION WHICH MAY BE OF 'C' FORM OR SPIRALLY WOUND. THIS TUBE EXPANDS WHEN PRESSURE IS APPLIED INTERNALLY; THIS EXPANSION IS CONVERTED INTO ROTATION OF A CONCENTRIC POINTER WITH A GEAR MOVEMENT. THE READING INDICATED ON A DIAL BY THE POINTER IS PROPORTIONAL TO THE PRESSURE APPLIED. C-TYPE BOURDON TUBES ARE USED FOR LOW PRESSURE RANGES AND HELICAL/ SPIRAL TUBES FOR HIGHER PRESSURE RANGES.