Magnehelic Differential Pressure Gauge Dwyer 0-15 in wc 1/8″ NPT Taps

Description

Product Overview

The Dwyer Magnehelic Differential Pressure Gauge is engineered for precise differential pressure measurement across a range of industrial applications. Featuring a robust diaphragm positioned vertically for optimal response, the gauge delivers a clear 0‑15 inches water column (in wc) reading, while also accommodating pressure limits from -20 inches mercury to 15 psig. Constructed from high‑grade materials, the gauge resists corrosion and wear, ensuring long‑term stability even in harsh environments. The 1/8″ female NPT connections provide both side‑by‑side and back‑to‑back high and low pressure taps, simplifying installation on a variety of piping configurations. With a compact footprint of 6 × 3.8 × 6.8 inches and a lightweight design of 1.2 pounds, the unit integrates seamlessly into control panels, process enclosures, and field installations. Its clear, analog faceplate offers immediate visual feedback, reducing the need for auxiliary instrumentation and supporting rapid decision‑making on the shop floor.

Usage

Designed for air and non‑combustible gases, this gauge excels in HVAC systems, filtration units, boiler feedwater monitoring, and any process where accurate pressure differentials are critical. The vertical diaphragm orientation ensures consistent performance regardless of temperature fluctuations, which span from 20 °F to 140 °F (‑6.7 °C to 60 °C). Engineers and technicians appreciate the gauge’s ability to handle both low‑pressure differentials for delicate filtration media and higher differentials for robust process control. Its NPT tap design allows for straightforward connection to existing manifolds, reducing downtime during retrofits or new installations. The gauge’s durability makes it suitable for continuous operation in manufacturing plants, water treatment facilities, and petrochemical environments where reliability and precision are non‑negotiable.

Why Choose Us

Choosing the Dwyer Magnehelic Differential Pressure Gauge means selecting a product backed by decades of industry expertise and a commitment to quality. Dwyer Instruments, Inc. manufactures each gauge in a controlled environment, adhering to rigorous testing protocols that verify accuracy, repeatability, and environmental resilience. The gauge is covered by a comprehensive warranty and supported by a responsive technical service team that provides installation guidance, calibration assistance, and troubleshooting support. Unlike generic alternatives, this gauge offers a combination of precise measurement range, durable construction, and user‑friendly interface that translates into lower total cost of ownership. Customers benefit from reduced maintenance intervals, fewer calibration cycles, and confidence that the gauge will perform reliably under demanding operational conditions.

Key Features

• Accurate 0‑15 in wc differential range for precise monitoring
• Vertical diaphragm design ensures stable performance across temperature extremes
• 1/8″ NPT high‑low pressure taps simplify installation on existing piping
• Durable housing resists corrosion, suitable for harsh industrial environments
• Dedicated Dwyer support team provides expert assistance and warranty coverage

FAQ

What pressure ranges can this gauge measure?

The gauge measures differential pressures from -20 inches mercury up to 15 psig, with a clear 0‑15 inches water column display for routine monitoring.

Can the gauge be used with gases other than air?

Yes, it is compatible with air and non‑combustible gases, including natural gas when the appropriate option is selected.

How should the gauge be mounted for optimal performance?

For best results, mount the diaphragm in a vertical orientation as shown in the installation diagram. Alternate orientations may be used, but they require consultation with the manufacturer.

What maintenance is required to keep the gauge accurate?

Periodic visual inspection for physical damage and occasional calibration checks are recommended. The gauge’s robust construction minimizes the frequency of maintenance.

Is there a warranty or service plan available?

Dwyer provides a standard warranty covering manufacturing defects, and customers can access technical support and service options through authorized distributors.