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Chemical Sealed Pressure Gauge (Screwed Type)Diaphragm sealed gauge commonly known as "chemical seal" gauge are designed and recommended to isolate the measuring system of a pressure gauge from corrosive, pasty or dangerous fluid depending on the viceosity, pressure, temperature, solidification of a particular process medium.

The diaphragm seal has been filled under vacuum with the transmitting liquid, the pressure gauge/diaphragm seal assembly must never be dismantled.

A carefully designed corrogated diaphragm is used to achieve maximum flexibility and linearity with sufficient stroke to provide the displacement needed to produce full deflection of the sensing element.

Chemical Sealed Pressure Gauge ( Flanged Type)The diaphragm is argon arc welded to the top chamber to ensure a perfect selling "No LEAK". In some cases the diaphragm is coated OR lined with a second membrane (teflon). The welded construction facilitates removal of the gauge for repair/service without process shut down.

The displacement of the diaphragm is transmitted to the bourdon sensing element, through solidly filled liquid having low cubical expansion with greater temperature stability.

The gauge indicator is either directly fitted with the sealed chamber OR by means of capillary tube, thus permitting easier mounting OR the remote reading of the pressure.

TECHNICAL SPECIFICATIONS :

TYPE DIAGHRAM SEALED STANDARD FITMENT Blow out disc
ACCURACY +/- 1% of range span
DIAL SIZE 100 & 150 mm STANDARD RANGES Pressure : 0 –1,1.6,2,2.5,4,6,10,16,25,
40,60,100,160,250,400 & 600 kg/cm2
WINDOW Clear glass-standard shatter proof glass-optional Vacuum: 0 to 760 mm
Hg Vac
Compound: (-)1 to (+)3, 5, 9, 15 & 24 kg/cm2
BOURDON TUBE MATERIAL AISI 316 ss
MOVEMENT MATERIAL AISI 316 SS SEALED UNIT
CONSTRUCTION
Diaphragm welded with SS chamber
SHANK MATERIAL AISI 316 SS Diaphragm Loosely placed in between Top & Bottom chamber
ENCLOSURE Die cast aluminium weather proof Stove enamelled black-Standard

Pressed AISI 304 ss-Optional
SENSING ELEMENT

DIAPHRAGM MATERIAL

Diaphragm


AISI 316 ss

ENCLOSURE TYPE IP65
MOUNTING Local (Direct) Local (Surface/Wall Projection) Flush Panel (remote sensing) SEALING LIQUID

TOP CHAMBER

Silicone oil

AISI 304 SS

CONNECTION LOCATION Bottom for direct & surface / Wall / Projection mounting

Back for flush panel mounting

BOTTOM CHAMBER & CONNECTION MATERIAL AISI 316 SS

 

CONNECTION BSP (M) " NPT (M) M20 x 1.5mm (M) – Standard
CAPILLARY PROTECTION Spiral / Sheath Flanged as per BS, ASA & DIN
LENGTH OF CAPILLARY Standard-2 Metres

Available upto 10 Metres

 

 

CAPILLARY MATERIAL AISI 316 ss
CAPILLARY PROTECTION MATERIAL AISI 304 ss

Diaphgram operated chemical sealed pressure gauge bottom entry
Diaphgram operated chemical sealed pressure gauge back entry

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