0-30 Psi Glycerin Liquid Filled Low Pressure Gauge, 2.5″ Dial Size, 1/4″ NPT Lower Mount, 304 Stainless Steel Case, for Water Pipe, HVAC, Water Oil Air Pressure Test

Description

Product Overview

The BPSSDI 0-30 Psi Glycerin Liquid Filled Low Pressure Gauge is engineered for precision and durability in demanding industrial environments. Housed in a robust 304 stainless steel case, the gauge protects internal components from corrosion and mechanical wear, ensuring a long service life even when exposed to moisture, oil, or harsh chemicals. The 2.5″ dial features a dual scale in Psi and Bar, calibrated to 2.5% accuracy, allowing technicians to read pressure values quickly and confidently. Glycerin filling eliminates pointer flutter caused by vibration and pulsation, preserving the integrity of the measurement and extending the gauge’s reliability. The gauge is equipped with a 1/4″ NPT lower‑mount thread, compatible with a wide range of pipe fittings, and includes a strip of adhesive tape for a secure, leak‑free installation.

Designed for versatility, this gauge can be used across multiple sectors, including HVAC systems, water treatment facilities, oil pressure testing rigs, and general industrial pressure monitoring. Its compact dimensions—4.72 x 3.14 x 1.97 inches—and lightweight construction (3.52 ounces) make it easy to handle and install in tight spaces. The gauge’s temperature tolerance from -40°C to 70°C ensures accurate performance in both cold storage environments and hot production lines. With a best‑seller rank of #5,175 in Industrial & Scientific and a 4.7‑star rating from over 130 verified customers, the BPSSDI gauge has earned a reputation for reliability and value.

Usage

When measuring water pressure in residential or commercial plumbing systems, the gauge provides instant feedback on system performance, helping plumbers diagnose low‑flow issues or verify proper pressure settings. In HVAC applications, the gauge monitors refrigerant line pressures, enabling technicians to fine‑tune system efficiency and prevent compressor damage. For oil testing, the gauge’s glycerin‑filled design resists the pulsating forces typical of hydraulic circuits, delivering stable readings that support accurate calibration of pumps and valves. The gauge also excels in air pressure testing for pneumatic tools, where its low‑pressure range (0‑30 Psi) matches the requirements of most hand‑held compressors and blow‑guns.

Installation is straightforward: simply thread the 1/4″ NPT lower‑mount fitting onto the pipe, apply the supplied adhesive tape to ensure a tight seal, and tighten the gauge by hand. The gauge’s clear dial can be read from a distance of up to 3 feet, reducing the need for close‑up inspection in hazardous or confined areas. Its weather‑resistant construction allows it to be mounted outdoors or in environments with temperature fluctuations, making it a reliable choice for field service engineers and on‑site maintenance crews.

Why Choose Us

BPSSDI stands behind every gauge with a commitment to quality control and customer satisfaction. Each unit undergoes rigorous testing for accuracy, leak resistance, and durability before it leaves the factory, ensuring that you receive a product that meets or exceeds industry standards. The use of premium 304 stainless steel for the case and brass for the wetted parts guarantees resistance to corrosion, even when measuring aggressive fluids such as oil or chemically treated water.

Our glycerin‑filled technology is a hallmark of BPSSDI engineering, providing a smooth, vibration‑free operation that protects the internal mechanism from wear caused by rapid pressure changes. This design choice not only improves measurement stability but also reduces the frequency of recalibration, saving you time and maintenance costs. Additionally, the gauge is backed by a responsive after‑sales support team that offers technical assistance, replacement parts, and a straightforward warranty process.

Choosing BPSSDI means investing in a gauge that delivers consistent performance across a broad temperature range, supports a variety of pipe sizes with its standard 1/4″ NPT thread, and offers the flexibility of multiple pressure ranges through our extensive SKU lineup. Whether you need a gauge for low‑pressure water testing or higher‑range industrial applications, our catalog provides the exact model you require, all at a competitive price point.

Key Features

• Stainless steel case protects against corrosion and extends gauge lifespan
• Glycerin filling eliminates pointer flutter for stable, accurate readings
• Dual‑scale 2.5″ dial shows both Psi and Bar, simplifying conversion
• 1/4″ NPT lower‑mount thread fits standard pipe fittings for easy installation
• Responsive customer support and warranty ensure peace of mind after purchase

FAQ

What is the advantage of a glycerin‑filled gauge?

Glycerin filling dampens the movement of the internal pointer, preventing flutter caused by vibration or pulsating pressure. This results in smoother, more reliable readings and protects the delicate internal mechanism from wear, especially in high‑frequency or high‑vibration environments.

Can this gauge be used for oil pressure testing?

Yes. The gauge’s brass wetted parts are compatible with non‑corrosive liquids such as oil, and the stainless steel case provides resistance to oil‑related contaminants. Its temperature range of –40°C to 70°C also covers typical oil testing conditions.

How do I install the gauge on a pipe?

Thread the 1/4″ NPT lower‑mount fitting onto the pipe end, apply the included adhesive tape to create a seal, and tighten the gauge by hand until snug. No additional tools are required, and the clear dial allows for easy reading once installed.

What maintenance is required?

The gauge is designed for low‑maintenance operation. Periodic visual inspection for physical damage and verification of calibration against a known standard are recommended. If the gauge is exposed to extreme conditions, a recalibration may be necessary to maintain accuracy.

Is there a warranty?

All BPSSDI gauges come with a one‑year limited warranty covering manufacturing defects. Our support team is available to assist with troubleshooting, replacement parts, or warranty claims should any issues arise during normal use.