What is the EN 837-1 standard?

EN 837-1 Standard

The EN 837-1 standard specifies the requirements for design, construction, performance, and testing of Bourdon tube pressure gauges used in a wide range of industries. These gauges are crucial for ensuring accurate pressure measurement and maintaining safety across various applications, including industrial processes, environmental management, and technical instrumentation.

Table of Contents

1. Introduction to EN 837-1
2. Design and Construction
3. Performance Requirements
4. Testing Specifications
5. Guanshan Instruments Company Solutions
6. References

1. Introduction to EN 837-1

The EN 837-1 standard provides guidelines for Bourdon tube pressure gauges, which are commonly utilized due to their reliability and accuracy in measuring pressure ranges from 0.6 to 1,600 bar. These guidelines ensure the safe operation and consistency of pressure gauges across diverse applications.

2. Design and Construction

Pressure gauges covered by EN 837-1 are designed with a Bourdon tube mechanism. Material selection for these gauges is critical and includes stainless steel, brass, and other alloys for corrosion resistance and durability. The standard mandates that the construction of the gauges must meet specific criteria for mechanical stability, robustness, and ability to withstand environmental factors.

3. Performance Requirements

EN 837-1 defines performance parameters such as accuracy classes, which range from 0.1% to 2.5% of the full-scale deflection. These accuracy classes ensure that the pressure readings are precise and reliable. Additionally, the standard sets limits on permissible error, hysteresis effects, and operational temperature ranges from -20°C to +60°C, ensuring gauges function correctly under varying conditions.

4. Testing Specifications

The standard describes various tests to verify the performance and safety of pressure gauges, including:

• Pressure Cycling Test: Verifies durability over repeated pressure cycles.
• Overpressure Test: Ensures the gauge can withstand pressure surges without damaging accuracy.
• Environmental Testing: Assesses gauge performance under specific temperature and humidity conditions.

5. Guanshan Instruments Company Solutions

Guanshan Instruments offers a range of pressure gauge solutions compliant with EN 837-1 standards. Their products feature:

• High precision with accuracy classes up to 0.1%
• Robust construction with corrosion-resistant materials
• Comprehensive testing against EN 837-1 requirements, ensuring optimal performance and safety

Guanshan Instruments has implemented quality assurance processes to ensure each gauge meets or exceeds the standard specifications, providing reliable pressure measurement solutions across industries.

6. References

• European Committee for Standardization (CEN). (1996). EN 837-1: Pressure gauges - Part 1: Bourdon tube pressure gauges - Dimensions, metrology, requirements and testing.
• Guanshan Instruments Company Product Specifications. Retrieved from www.guanshaninstruments.com