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Kobata DPGN, DPGD Differential Pressure Gauges

Made in Japan
Manufacturer: Kowata Keiki Seisakusho Co., Ltd.
Model: DPGN, DPGD

Product Information

Model: DPGN type, DPGD type (MODEL TYPE: DPGN, DPGD)

This differential pressure gauge features two Bourdon tubes as the pressure receiving element, measuring and indicating the pressure difference between two locations. The NV type incorporates our unique overpressure prevention mechanism, ensuring you can use it confidently without worrying about instrument damage due to overpressure from improper opening and closing of the bypass valve (pressure equalizing valve). We also manufacture the SUS type and remote diaphragm type for the main parts, accommodating various usage conditions such as specified fluids.

Furthermore, we offer two types of cases: the indoor Wappa type and the outdoor type with a dustproof and drip-proof structure. As a special specification, the gauge can function as a flow meter, indicating the liquid level in a sealed tank or converting the flow rate using the conversion scale.

Product Specifications

sizeφ150, φ200
shapeDPGN type (wall-mounted type), DPGD type (embedded type)
Normal reference pressureVarious pressures from 0 to 0.1 MPa to 0 to 8 MPa (up to 3.5 MPa is standard for liquid-contacting SUS specifications)
Differential pressure maximum scale1/3 or 1/5 of the normal reference pressure
Instruction formatConcentric type (270° scale)When the maximum differential pressure scale is 1/3 of the normal reference pressure
Eccentric type (90° scale)When the maximum differential pressure scale is 1/5 of the normal reference pressure
ConnectionG3/8B, G1/2B or diaphragm type
(please consult us regarding the shape and material of the flange and diaphragm)
Differential pressure indication accuracyWithin ±1.5% of maximum scale
ReproducibilityWithin ±1% of maximum scale
elementBourdon tube
Wetted Parts MaterialBourdon tubeC6872T, SUS316
Connection stockC3604BD, SUS316
CasestructureWappa type (indoor type), metal sealed screw lid type (outdoor type)
MaterialAC7A
ExteriorBlack semi-gloss baked finish
Permitted ambient temperature-5 to 45°C

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