DX 20

At a Glance

In the Hirlekar Precision Model DX 20, the movement of the diaphragm, hence that of the corresponding piston magnet, is converted into appropriate calibrated rotary movement of the pointer through a magnetic connection. This type of diaphragm model is used in applications where no migration of the media from high pressure side (HP) to low pressure side (LP) is permitted.
In case of condensation: New EP series engineering polymer case is recommended. In operating condition with frequent temperature fluctuations, condensation may occur on the glass affecting visibility. Hirlekar Precision’s EP Series Engineering polymer cases can be easily opened and cleaned on site.
Model DX 20 is also available in a bar/psi dual scale.


Accuracy ±5% of the FSD (Ascending)
Migration Zero Migration from high to low port
Range 0-0.16 to 0-2 bar
0-2.4 to 0-30 psi
First marking on scale 15% of the FSD
Sensing element Diaphragm
Wetted Parts SS 316 body, SS 302 spring, diaphragm and ceramic magnet
Case Material Stainless steel (SS 304)
Dial size Inch: 3.5, 4.0
mm: 80, 100
Mounting Direct, 2” pipe & surface mounting
Maximum working pressure 100 bar
Maximum process temperature 80°C/ 175°F
Enclosure Engineering polymer
Seals Buna-N, Viton diaphragm & ‘O’ rings
Window Standard: Float glass
Optional: Toughened glass, acrylic & safety glass
Connection Standard: ¼” BSP (F)
Optional: ¼” NPT (F)
Porting In-line
Over range protection Up to the max. working pressure from high side only.
Protection for gauge & switch IP 65 / NEMA-4
+91 98 2304 3051
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