Refrigeration Pressure Gauge Glycerin Filled, 4″ (100 mm) Dial, Dual Scale -1 to 38 Bar / -30 inHg to 550 PSI, Temperature Scales for R22, R134a, R404a & R407a, Panel Mounting Back Entry, 1/4″ BSP SS Ferrule Tube Fittings, SS Material

Description

Japsin Instrumentation Refrigeration Pressure Gauge – Precision for HVAC & Cooling Systems

When it comes to refrigeration and HVAC systems, accuracy, durability, and ease of use are the most important requirements. The “Ji” Japsin Instrumentation Refrigeration Pressure Gauge is designed to meet these needs with exceptional precision and robust engineering. Manufactured with high-grade stainless steel and compliant with EN 837-1 standards, this gauge provides reliable performance across a wide range of refrigeration applications, including commercial cooling units, industrial HVAC plants, cold storage, and heat pump systems.

Reliable Dual-Scale Measurement

This refrigeration pressure gauge is built with a large 4″ (100 mm) dial for clear visibility and quick readings. It features a dual scale:

• -1 to 38 bar

• -30 inHg to 550 PSI

The dual scale allows operators to take readings in both metric and imperial units, making it suitable for global use. Whether working in vacuum or high-pressure conditions, this gauge ensures dependable measurement for precise system monitoring.

Integrated Refrigerant Temperature Scales

Unlike standard pressure gauges, this model includes temperature scales for multiple refrigerants. This makes it highly convenient for service engineers and technicians who need to evaluate system conditions quickly without referring to external charts. The gauge covers the following refrigerant saturation temperature ranges:

• R22: -60°C to +80°C

• R134a: -60°C to +90°C

• R404a: -50°C to +70°C

• R407a: -50°C to +70°C

This multi-refrigerant compatibility ensures versatility in a variety of applications, from traditional cooling systems to modern HVAC installations.

Durable Stainless Steel Construction

Designed for demanding environments, the gauge features a stainless steel case, stainless steel wetted parts, and a bayonet-type enclosure. These construction elements protect the gauge against corrosion, moisture, and mechanical stress, ensuring long service life even in challenging industrial conditions.

The clear polycarbonate lens ensures excellent visibility while protecting the dial from dust and impact. The black aluminum pointer provides precise alignment, while the glycerin filling reduces vibration and pulsation for steady, accurate readings.

Vibration-Resistant with Glycerin Filling

One of the standout features of this refrigeration pressure gauge is its glycerin-filled design. In refrigeration systems, frequent fluctuations and vibrations can cause unstable readings and premature wear of internal parts. The glycerin dampens these effects, stabilizing the pointer movement and extending the gauge’s operational life.

This makes the gauge ideal for systems where pulsations are common, such as compressor discharge lines and high-pressure circuits.

Easy Installation & Secure Connections

The gauge is designed for panel mounting with a back entry connection, allowing seamless integration into control panels and refrigeration units. It uses a 1/4″ BSP stainless steel ferrule tube fitting, providing a leak-free and secure connection for reliable long-term operation.

The bayonet-type case enhances safety and ensures that the gauge remains properly sealed under varying operating conditions.

Accuracy & Compliance

The Japsin refrigeration pressure gauge is manufactured to Class 1.6 accuracy (EN 837-1 standard), which guarantees precision in measurement. This level of accuracy is crucial in refrigeration, where small variations in pressure or temperature can significantly impact system performance, efficiency, and safety.

Applications

This refrigeration pressure gauge is suitable for a wide range of applications, including:

• Commercial Refrigeration Systems: Cold rooms, walk-in freezers, chillers, and supermarket display units.

• HVAC Installations: Air conditioning systems, industrial HVAC plants, and central cooling units.

• Cold Storage Facilities: Ensuring temperature-sensitive goods are maintained under strict conditions.

• Heat Pumps & Modern Cooling Systems: Providing accurate measurement for energy-efficient systems.

• Service & Maintenance: A must-have tool for technicians servicing refrigeration and HVAC systems.

Why Choose Japsin Instrumentation?

Japsin is a trusted name in the process and control instrumentation industry. With decades of expertise, Japsin instruments are known for their precision, durability, and compliance with global standards. Each refrigeration pressure gauge is carefully engineered to deliver accurate readings, long service life, and easy usability, making it a reliable choice for professionals worldwide.

By choosing Japsin, you are investing in an instrument that not only performs exceptionally but also reduces downtime, improves efficiency, and ensures system reliability.

Japsin Instrumentation – Since 1974