General Specification
Reference Standard | EN – 837 / IS 3624-1987 / ASME |
Model | G 31 221 / 222 |
Application | Industrial process pressure measurement |
Type | Weather proof (KPG10) / Glycerine Filled (KPG20) |
Nominal Diameter | 2 1/2” (63 mm) 4” (100 mm) 6” (150 mm) |
Case Material | 304 St.St. |
Bezel Material | 304 St.St. |
Bezel fitting | Bayonet Bezel |
Stem/ Socket Material | 304St.St. |
Sensing Element | 304 St. St / 316L St.St Bourdon tube |
Joint | Argon arc welded |
Movement | SS304 |
Pointer | Black Aluminium - |
Dial | White coated Aluminium |
Marking | Black ‘or’ Black and red combination for dual scale |
Scale | Single / Dual |
Standard Unit | kg/cm2 / kg/cm2 with psi (All other standard engineering units are available on request) |
Mounting | Please refer the mounting chart |
Thread | 1/4” / 3/8” / ½” NPT / BSPP / BSPT; M 20 X 1.5 |
Window | Polycarbonate / Acrylic / Toughened glass |
Available in | Pressure / Compound / Vacuum |
Minimum Range | 0 to -0.6 kg/cm2 / bar |
Maximum range | 0 to -1 kg/cm2 / bar |
Over Pressure | 130% FS Short time |
Case filling liquid | Glycerine / non-conductive fluid for Electric contact |
Accuracy | +
/- 0.5%,1% ‘or’1.6% of FSD |
Additional Fitment | Optional* |
Calibration Certificate | Factory calibration certificate shall be provided