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Industrial Supply Syndicate

Sealed Diaphragm Pressure Gauge

Sealed Diaphragm Pressure Gauge
Business Type Manufacturer, Exporter, Supplier, Retailer
Enclosure Die Cast Aluminum Weather Proof case or SS 304 Bayonate Case
Dial size 63, 100 & 150mm
Range 0 to 1 Kg/cm2 up to 250 kg /cm2 in Pressure, Compound.
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Preferred Buyer From

Location Worldwide

Product Details

Bourden AISI SS 316.
Movement AISI SS 304
Sensing Element AISI SS 316 / Spring Steel diaphragm
Diaphragm Protection Teflon, Silver foil (For Chlorine) Stainless Steel.
Top Chamber SS-304
Bottom chamber SS 304 / SS 316.
Blowout Disc Provided
Pointer Aluminum , Zero Adjustment pointer
Dial Aluminum with Black / Red Marking in White Background
Window 3mm mm thick Transparent Glass / Shatter-proof Glass
Over Range Protection 30% above Max. Pressure
Mounting Direct with Bottom Entry.
Connection Flange type or Standard threaded type 3/8” or ½” BSP / NPT (M) SS 304 or SS 316
Capillary Up to 5 Mtrs solid drawn Steel Capillay with SS armour (Optional)
Accuracy +/- 1% FSD
Optional Glycerin Filled & Contact and Alarm.

INDUS make Diaphragm Sealed pressure gauges, also known as Chemical Seal Gauge are recommended where the fluid is highly corrosive, contaminated, viscous or liable to crystallize inside the system. Diaphragm seals is use to isolate the measuring system of the gauge from the corrosive Liquid. The gauge above the diaphragm seal is filled with Silicon Oil, which transmit the pressure acting on diaphragm to the bourdon tube. The gauge and diaphragm seal can also be separated with capillary tube up to 5Mtr in length.

Features :

  • Case with or without Glycerin filling.
  • Can be fitted with electrical Contact for Alarms & Signals for various process applications.
  • For Use upto Full Scale Value.
  • Available in measuring Units like Kg/Sqcm, PSI, BAR, MPa, Kpa & Dual Scale.
  • PTFE Coating (optional) for use in corrosive materials.


It is mainly used as a protection device to prevent corrosion, clogging or freezing of Bourden tube element from material such Urea, Tar, Crude, Slurry etc. in Chemical Plant & Machineries, Refineries, Power Plants, Steel & Fertilizer Plants etc.


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