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Dwyer 4004 Capsuhelic Differential Pressure Gauge

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Dwyer 4004 Capsuhelic Differential Pressure Gauge

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MOQ : 12 Pieces

Dwyer 4004 Capsuhelic Differential Pressure Gauge Specification

Sensor Type
Capsule-Type Differential Pressure Sensor

Outer Size
4-1/2 inch (114 mm) Diameter

Thread
1/8 NPT Female

Bourdon Tube
Not Applicable (Capsule Sensing Element)

Grade
Industrial

Display
Analog

Seal Material
Buna-N

Material
Cast Aluminum Case, Acrylic Lens, Buna-N Diaphragm

Dial Material
White Finished Aluminum

Pointer Material
Black Finished Aluminum

Processing Type
Machined and Anodized

Diameter
114 mm (4-1/2 inch)

Glass Size
Full View, Clear Acrylic Lens

Mount Type
Surface Mount or Flush Panel Mount

Scale Range
0-4 in. H2O (Inches of Water)

Accuracy
2% of Full Scale

Finishing
Corrosion-Resistant Anodized Aluminum Housing

Measure Pressure Of
Air and Compatible Gases

Accessories
Two 1/8 NPT Plugs, Two Mounting Brackets, and Screws

Dwyer 4004 Capsuhelic Differential Pressure Gauge Trade Information

Minimum Order Quantity
12 Pieces

Payment Terms
Cash Against Delivery (CAD), Cash on Delivery (COD), Paypal, Telegraphic Transfer (T/T), Cash in Advance (CID), Cheque, Cash Advance (CA)

Sample Policy
Sample costs shipping and taxes has to be paid by the buyer

Main Export Market(s)
Australia, North America, South America, Eastern Europe, Middle East, Western Europe, Asia, Central America, Africa

Main Domestic Market
All India

About Dwyer 4004 Capsuhelic Differential Pressure Gauge

Dwyer 4004 Capsuhelic Differential Pressure Gauge

Dwyer Instruments 4004

Capsuhelic Differential Press. Gauge, 0-4 in H2O, brass case

Differential Pressure Gage, Range 0-4.0" 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

0-4 in H2O

High-Precision Differential Pressure Measurement

Utilizing a capsule-type sensor, the Dwyer 4004 Capsuhelic Differential Pressure Gauge provides accurate pressure readings (2% of full scale) for air and compatible gases. The analog display allows for continuous monitoring, whether it is surface or panel mounted, and the robust build ensures reliable performance in industrial environments.

Rugged and Durable Design

Constructed from corrosion-resistant anodized aluminum and a clear acrylic full-view lens, this gauge is built to withstand challenging conditions. The Buna-N diaphragm and carefully machined parts guarantee long operational life, while its general-purpose enclosure is suitable for indoor industrial applications.

Flexible Installation and Simple Maintenance

The gauge includes two 1/8" NPT plugs, mounting brackets, and screws for secure installation. Its external zero adjustment screw allows on-site calibration without disassembly, minimizing maintenance downtime. Compatible with both surface and flush panel mounting, it provides versatile application in varied settings.

FAQs of Dwyer 4004 Capsuhelic Differential Pressure Gauge:

Q: How do I install the Dwyer 4004 Capsuhelic Differential Pressure Gauge?

A: The Dwyer 4004 can be installed using the provided mounting brackets and screws for either surface mount or flush panel mount configurations. Connect the 1/8" NPT high and low pressure ports to your process lines, ensuring compatibility with air or compatible gases only.

Q: What gases and pressures can this gauge measure?

A: This gauge is designed to measure the differential pressure of air and compatible gases, with a working pressure up to 200 kPa (29 psi). Overpressure protection safeguards up to 172 kPa (25 psi) to prevent damage to the sensing element.

Q: When should I use the external zero adjustment screw?

A: Use the external zero adjustment screw to recalibrate the gauge, particularly if you notice a drift in readings or after long-term use. This adjustment can be performed without removing the gauge from its installation, ensuring maintenance is quick and efficient.

Q: Where is the Dwyer 4004 most effectively used?

A: This differential pressure gauge is ideal for industrial applications where reliable air or compatible gas measurement is needed, such as HVAC systems, filtration monitoring, and process control within general-purpose, non-weatherproof indoor environments.

Q: What are the benefits of the capsule-type differential pressure sensor?

A: The capsule-type sensor provides high sensitivity and consistent accuracy (2% of full scale) for low-range differential pressure measurements, making it especially suited for precise monitoring in demanding industrial conditions.

Q: How do I maintain and clean the gauge?

A: Regularly inspect the clear acrylic lens for visibility and wipe clean with a soft, damp cloth. Periodically check the zero setting, and recalibrate as necessary using the external zero adjustment screw. Ensure all seals remain intact for optimal performance.

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