Dwyer 4002 Capsuhelic Differential Pressure Gauge

About Dwyer 4002 Capsuhelic Differential Pressure Gauge

Dwyer 4002 Capsuhelic Differential Pressure Gauge

Dwyer Instruments 4002

Capsuhelic Differential Press. Gauge, 0-2 in H2O, brass case

Differential Pressure Gage, Range 0-2.0" w.c., For Vertical Scale Position Only. 

The Capsuhelic gauge is designed to give fast, accurate indication of differential pressures. The gauge 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 gauge, the Capsuhelic gauge contains a simple, frictionless movement that permits full scale readings as low as 0.5 in H2O. The pressure being measured is held within a capsule which is an integral part of the gauge. This containment of the pressure permits the use of the gauge on system pressures of up to 500 psig, even when differentials to be read are less than 0.1 in H2O. The diaphragm-actuated Capsuhelic gauge requires no filling liquid which might limit its outdoor applications. Zero and range adjustments are made from outside the gauge, and there is no need to disassemble the gauge in normal service. Note: May be used with Hydrogen. Order a Buna-N diaphragm. Pressures must be less than 35 psi.

Product Highlights

Brass case

0-2 in H2O

Robust Industrial Design

The Dwyer 4002 Capsuhelic Gauge is engineered for demanding industrial environments. Its rugged black case, precision-molded housing, and IP54 enclosure rating deliver durability and resistance to dust and limited moisture. The gauges materials, including acrylic, aluminum, and Buna-N, ensure longevity and reliable performance, even under constant use.


Clear, Accurate Display

Featuring a 4-inch diameter analog display, the gauge offers a clear view of pressure differentials with a scale range from 0 to 2 inches H2O. The white aluminum dial with black markings and a black aluminum pointer make readings simple and precise. With 2% full-scale accuracy, users can trust the results in critical applications.


Simple Installation and Adjustment

The 4002 Capsuhelic includes mounting brackets and screws for hassle-free surface or panel installation. Its external screw-type zero adjustment makes recalibration easy without disassembling the unit, saving time and effort during maintenance routines. The 1/8" NPT connections allow secure attachment to pressure sources.