What is a Y40 40mm Pressure Gauge?
The Y40 radial 40mm pressure gauge uses a copper-alloy Bourdon tube for stable indication in compact equipment. Suitable for air compressors, pneumatic systems and small machinery. Multiple threads (M10×1, G1/8, NPT1/8) and pressure ranges available. Manufactured under ISO 9001 quality control, offering reliable and cost-effective monitoring for OEM applications.
Typical Applications
- Pneumatic systems: compressors, regulators, tools
- Compact HVAC equipment and refrigeration units
- Gas regulators for laboratory and industry (non-critical use)
- Portable machinery and small equipment
- Hydraulic test pumps and service tools
- General industrial gases and low-viscosity liquids
Product Features
- Wide media compatibility: Suitable for air, water and non-corrosive liquids and gases
- Flexible ranges: Available from vacuum to high pressure applications
- Reliable mechanism: Proven Bourdon tube design for stable indication
- Compact design: 40 mm dial ideal for space-limited equipment
Technical Specifications
Product Name: Leierda Y40 Pressure Gauge with Radial Mounting, 40mm Dial
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: lower mount (radial)
Mounting: direct 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 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 – 40 mm Pressure Gauge
Q1: What is a 40mm pressure gauge used for?
A 40 mm pressure gauge is mainly used for local indication on equipment such as air compressors, pneumatic systems, pumps and portable machinery where space is limited.
Q2: Is a 40mm pressure gauge suitable for panel mounting?
No. Due to its small dial size, it is designed for close-range observation on equipment rather than long-distance panel reading.
Q3: What media can the Y40 40mm pressure gauge measure?
It is suitable for air, water, oil and other non-corrosive liquids or gases compatible with copper alloy wetted parts.
Q4: What connection threads are available?
Common options include M10×1, G1/8 and NPT1/8. Other connections can be customized.
Q5: Can the pressure range be customized?
Yes. Multiple pressure ranges are available from vacuum to high pressure depending on application requirements.
Q6: What is the accuracy class of the Y40 40mm pressure gauge?
The standard accuracy is Class 2.5, suitable for general industrial monitoring.
Q7: Is this gauge suitable for outdoor use?
It can be used outdoors in normal environments, but direct exposure to strong vibration, pulsation or corrosive atmosphere should be avoided unless special versions are selected.
Q8: How do I choose the correct pressure range for a 40 mm pressure gauge?
The working pressure should normally be within 30–70% of the full scale to ensure longer service life and stable indication.
Q9: Can the Y40 pressure gauge be supplied with OEM branding?
Yes. Custom dial printing, logo marking and packaging are available for OEM and private label orders.