40mm Liquid Filled Back Connection Pressure Gauge

Product Introduction

The 40mm liquid filled back connection pressure gauge is designed for reliable pressure monitoring in compact industrial equipment. Its liquid-filled construction helps reduce pointer vibration and improve reading stability, making it suitable for applications exposed to pressure pulsation and mechanical shock.

Featuring a center back connection design, this gauge is commonly used in pneumatic systems, hydraulic equipment, pumps and OEM machinery where installation space is limited and consistent pressure indication is required.

Key Features

• 40mm compact dial size
• Back connection / center back mounting
• Glycerin or silicone oil filled
• Enhanced vibration resistance
• Improved pointer stability
• Clear and accurate pressure indication
• Suitable for panel installations
• Durable industrial construction
• Various pressure ranges available

Technical Specifications

Applications

• Pneumatic control systems
• Hydraulic equipment and machinery
• Air compressor pressure monitoring
• Water pump systems
• Industrial automation equipment
• OEM machinery manufacturing
• Control panels and instrument cabinets
• General industrial pressure measurement

Working Principle

The gauge utilizes a Bourdon tube sensing element that responds to changes in system pressure. As pressure increases, the Bourdon tube deforms slightly, transferring movement through internal gears to drive the pointer across the dial.

The filling liquid absorbs mechanical shock and pressure pulsation, contributing to smoother pointer movement and easier pressure observation.

FAQ

Why choose a 40mm pressure gauge?

A 40mm gauge is suitable for compact equipment where installation space is limited while still providing effective pressure indication.

What advantages does back connection offer?

Back connection designs improve front visibility and are commonly used in control panels and enclosed equipment.

Can this gauge operate in vibrating environments?

Yes. The liquid filling helps absorb vibration and reduces pointer instability during operation.

How should I determine the appropriate pressure range?

The selected range should accommodate normal operating pressure while allowing an adequate safety margin for temporary fluctuations.