Differential Pressure Gauge JH Gauge 0 to 5 in H2O Aluminum Dual NPT

Description

Product Overview

The JH Gauge differential pressure gauge is engineered to deliver accurate differential pressure readings across a range of 0 to 5 inches of water. Constructed from solid aluminum, the instrument offers resistance to corrosion and mechanical wear, extending its service life in demanding industrial and commercial settings. The gauge features dual 1/8 inch female NPT taps, enabling simultaneous connection to high and low pressure points for true differential measurement. With a full‑scale accuracy of plus minus 2 percent, it provides reliable data for process control, system balancing, and safety monitoring.

Key specifications include a compact 4‑3/4 inch diameter housing, a weight of approximately one pound, and an operating temperature range from 20 F to 140 F. The clear, analog dial is calibrated in inches of water, allowing technicians to quickly interpret readings without the need for additional conversion tools. The gauge is compatible with a variety of fluid systems, including air handling units, blower assemblies, furnace drafts, and bubbler setups.

Usage

Designed for HVAC professionals, plant engineers, and maintenance technicians, this gauge excels in environments where precise pressure differentials are critical. In air handling systems, it can be used to monitor filter pressure drop, ensuring filters are replaced before efficiency declines. For furnace installations, the gauge helps verify proper draft conditions, contributing to safe combustion and optimal heat output. In fluid handling applications, such as bubbler systems or orifice plate installations, the instrument provides essential data for flow rate calculations and system diagnostics.

The gauge’s robust aluminum body tolerates the temperature fluctuations commonly encountered in both commercial buildings and industrial plants. Its dual NPT connections simplify installation on existing pipework, reducing downtime during maintenance or system upgrades. Because the device does not require power, it can be deployed in remote locations where electrical access is limited, making it a versatile tool for field technicians.

Why Choose Us

JH Gauge has a long history of manufacturing precision measurement instruments for industrial applications. Each differential pressure gauge undergoes rigorous quality control testing to verify accuracy, leak integrity, and durability before leaving the factory. The use of high‑grade aluminum ensures that the gauge resists dents and corrosion, providing consistent performance over years of service.

Our commitment to customer satisfaction includes a responsive technical support team that can assist with installation guidance, calibration procedures, and troubleshooting. We also offer a limited warranty that covers manufacturing defects, giving users confidence in the reliability of their investment.

By selecting this gauge, customers benefit from a balance of accuracy, durability, and ease of use that is difficult to match with competing products. The straightforward analog display eliminates the need for complex electronics, reducing potential points of failure and simplifying routine maintenance.

Key Features

• Accurate differential pressure measurement from 0 to 5 inches of water with plus minus 2 percent full‑scale accuracy.
• Durable aluminum housing resists corrosion and mechanical impact for long‑term reliability.
• Dual 1/8 inch female NPT taps enable easy connection to both high and low pressure points.
• Wide operating temperature range (20 F to 140 F) suitable for both commercial and industrial environments.
• Responsive technical support and warranty coverage provide peace of mind after purchase.

FAQ

What does a differential pressure gauge measure?

A differential pressure gauge compares the pressure between two points in a system and displays the difference. This is useful for monitoring filter loading, airflow balance, and pressure drops across components.

Can the gauge be used with liquids as well as gases?

Yes, the gauge can measure pressure differentials in both gas and liquid applications, provided the pressure range does not exceed the 0‑5 inch water limit and the connections are compatible with the fluid type.

How do I ensure the gauge remains accurate over time?

Regular calibration against a known reference standard is recommended, especially after exposure to harsh conditions or after any significant impact. Keeping the gauge clean and protecting it from extreme temperature spikes will also help maintain accuracy.

Is any special training required to install the gauge?

No special training is required. The dual 1/8 inch NPT taps are standard fittings that can be tightened with a wrench. Follow the manufacturer’s installation guide to ensure proper orientation and avoid over‑tightening.

What warranty does JH Gauge provide?

JH Gauge offers a limited warranty that covers manufacturing defects for a period specified in the product documentation. Contact our support team for details on warranty claims and service procedures.