What is a Y40Z 40mm Back Mount Pressure Gauge?
The 40mm back mount pressure gauge (Y40Z) is designed for panel installation where the connection is positioned at the rear of the gauge. It provides clear front-facing indication on air compressors, pneumatic modules and compact machinery. The copper-alloy Bourdon tube ensures stable measurement, while multiple thread types and pressure ranges allow flexible OEM integration. Manufactured under ISO 9001 quality control for consistent industrial performance.
Typical Applications
- Compressor control panels
- Pneumatic control boxes
- Equipment housings and enclosures
- Machine front panels
- Regulators and distribution units
- OEM integrated equipment
Product Features
- Back mount connection for panel installation
- Front-facing readable indication
- Stable Bourdon tube measuring system
- Multiple connection and pressure range options
Technical Specifications
Product Name: Leierda Y40Z 40mm Back Mount Pressure Gauge
Nominal Size: ⌀40mm
Accuracy Class: Class 2.5
Scale Ranges: -0.1 … 0 MPa to 0 … 40 MPa
Pressure limitation:
- Static: 75% of full scale
- Dynamic: 66% of full scale
- Short time: 100% of full scale
Ambient temperature: -40 … +70 °C
Medium temperature: -40 … +70 °C
Temperature effect: ±0.4% of span per 10 °C deviation from reference temperature (20 °C)
Process connection: copper alloy
Connection thread: M10×1, G1/8, R1/8, NPT1/8 (others on request)
Connection location: back mount (axial)
Mounting: panel mounting
Case: black painted steel
Window: glass (standard), polycarbonate (optional)
Dial: black aluminum
Pointer: aluminum
Pressure element: Bourdon tube, copper alloy
Movement: copper alloy
Ingress protection: IP54
Certificates
Our 40mm back mount pressure gauge are manufactured in accordance with an ISO 9001 certified quality management system, ensuring consistent quality and reliability.Products comply with CE marking requirements and are certified to KS and EAC standards.Additional market-specific approvals are available upon request.This quality assurance system supports reliable use across a wide range of industrial and commercial applications.
FAQ – 40mm back mount pressure gauge
Q1: What is a 40mm back mount pressure gauge?
It is a compact pressure gauge with the process connection at the rear, designed to be installed through a panel or enclosure so the dial faces the operator.
Q2: Where is a back mount gauge typically installed?
Commonly on compressor control panels, pneumatic control boxes, regulator panels and machine housings where a front-facing indication is required.
Q3: What is the advantage compared with a radial gauge?
A back mount gauge allows flush panel installation and forward viewing, while a radial gauge is mounted directly on the pipe or equipment and read from the side.
Q4: What media can the gauge measure?
Air, water, oil and other non-corrosive liquids or gases compatible with copper-alloy wetted parts.
Q5: Is it suitable for oxygen or special gases?
Only specially cleaned and marked oxygen-service versions should be used for oxygen or hazardous gases. The standard version is for general industrial media.
Q6: What pressure ranges are available?
Ranges are available from vacuum to high pressure. The appropriate range should be selected so the working pressure stays within 30–70% of full scale.
Q7: What connection threads are offered?
Standard threads include M10×1, G1/8, R1/8 and NPT1/8. Other connections can be customized for OEM equipment.
Q8: How is the gauge installed into a panel?
The gauge body passes through the panel opening and is secured from the rear using a bracket or clamp so the dial remains flush with the front surface.
Q9: Does mounting orientation affect accuracy?
No. The gauge operates correctly in vertical or horizontal orientation once properly installed and free from excessive vibration.
Q10: Can it be used outdoors?
Yes, in normal industrial environments. For high humidity, vibration or pulsation conditions, a liquid-filled or higher-protection version is recommended.
Q11: What accuracy level does it provide?
Class 2.5 accuracy, suitable for general equipment monitoring and operational reference.
Q12: Can the gauge be customized for OEM use?
Yes. Dial printing, logo marking, special ranges, packaging and mounting accessories can all be customized.


