Dwyer-Capsuhelic Differential Pressure Gages

Feature:

The Capsuhelic® gage is designed to give fast, accurate indication of differential pressures. The gage may be used as a readout device when measuring flowing fluids, pressure drop across filters, liquid levels in storage tanks and many other applications involving pressure, vacuum or differential pressure.

Using the basic design of Dwyer’s time-proven Magnehelic® gage, the Capsuhelic® gage contains a simple, frictionless movement that permits full scale readings as low as 0.5 inch water column. The pressure being measured is held within a capsule which is an integral part of the gage. This containment of the pressure permits the use of the gage on system pressures of up to 500 psig, even when differentials to be read are less than 0.1 inch w.c. The diaphragm-actuated Capsuhelic® gage requires no filling liquid which might limit its outdoor applications. Zero and range adjustments are made from outside the gage, and there is no need to disassemble the gage in normal service.

Specifications:

Service

Aluminium Case : Air and compatible gases and oil based liquids.

Brass Case : Air and compatible gases and water based liquids

Wetted Materials

Ask agent

Housing

Die cast aluminium with impregnated hard coating, standard. Optional forged brass housing is required for water or water based fluids. Special material diaphragms available

Accuracy

±3% of full scale at 70°F (21.1°C). (±2% on 4000S models, ±4% on 4200, 4210, 4215, 4220, 4300, 4400, and 4500).

Pressure Limits

-20˝ Hg to 500 psig. (-0.677 bar to 34.4 bar).

Temperature Limits

20 to 200°F (-6.67 to 93.3°C).

Size

4˝ (101.6 mm) diameter dial face.

Mounting Orientation

Diaphragm in vertical position. Consult factory for other position orientations.

Process Connections

1/4˝ female NPT high and low pressure taps, duplicated - one pair top for air and gas, and one pair bottom for liquids.

Weight

3 lb, 3 oz (1.45 kg) aluminium case; 7 lb, 13 oz (3.54 kg) brass case.

Standard Accessories

Two 1/4˝ NPT plugs for duplicate pressure taps, four flush mounting adapters with screws and four surface mounting screws.