200 DGR

At a Glance

In the Hirlekar Precision Model 200 DGR, the movement of the diaphragm 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.


Accuracy ±2% of the FSD (Ascending)
Migration Zero Migration from high to low port
Range 0-0.25 to 0-7 bar
0-5 to 0-100 psi
First marking on scale 15% of the FSD
Sensing element Diaphragm
Wetted Parts Diaphragm, body material, SS 302 spring & ceramic magnet
Case Material Stainless steel (SS 304)
Dial size Inch: 2.5, 3.5, 4.0, 4.5, 6.0
mm: 63, 80, 100, 115, 150
Mounting Direct, front flange, 2” pipe & surface mounting
Maximum working pressure 200 bar / 3000 psi
Maximum process temperature 80°C/ 175°F
Body material Aluminum, Brass & SS 316
Seals Buna-N, Viton & EPDM
Window Standard: Float glass
Optional: Toughened glass, acrylic & safety glass
Connection Standard: ¼” NPT(F)
Optional: ¼” BSP (F) with adaptor
Porting In-line, rear, bottom, in-line & bottom
Over range protection Up to the max. working pressure from high side only. Never pressurize only LP side beyond 25 bar.
Protection for gauge & switch IP 65 / NEMA-4
+91 98 2304 3051
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