In the Hirlekar Precision Model D200 DPG, the movement of the piston is converted into appropriate calibrated rotary movement of the pointer through a magnetic connection. This type of piston model is used in applications where minor migration of the media from high pressure side (HP) to low pressure side (LP) is permitted.
Double dials mounted on both sides of the main body can be viewed from two sides. This type of gauge is popular on cartridge filters.
Specifications
Migration - Minor from high to low port
First marking on scale - 20% of the FSD
Wetted Parts - Body material, SS 302 spring, ceramic magnet & seals
Mounting - Direct
Seals - Buna-N, Viton & EPDM ‘O’ Rings
Window - Standard: Float glass
Optional: Toughened glass, acrylic & safety glass
Porting - In-line, bottom
Over range protection - Up to the max. working pressure from high & low side