Quality Assurance

Certifications & Standards

ISO 9001:2015 certified manufacturing — every Bell Engineering gauge is tested, calibrated and documented before dispatch. View and download our quality certificates below.

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Compliance

Manufacturing Standards We Follow

All Bell Engineering pressure gauges are manufactured, tested and calibrated as per internationally recognised standards.

✔ ISO 9001:2015 (QMS)
✔ EN 837-1 (Bourdon tube gauges)
✔ IS 3624 (Indian Standard)
✔ ASME B40.100 (US Standard)
✔ IP 65/67/68 (Ingress protection)
✔ ATEX / Ex-proof (on request)

🏅 Our Quality Certificates

Click View Certificate to open the PDF in a viewer. Use the Download button to save a copy.

ISO 9001:2015 Certified Quality Management System

ISO 9001:2015 Certified Quality Management System

Bell Engineering & Marketing is an ISO 9001:2015 certified manufacturer of precision pressure gauges, vacuum gauges, temperature gauges, and industrial instrumentation products. Our certification reflects our commitment to quality manufacturing, process control, customer satisfaction, and international standards compliance for industrial and export markets.

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Udyam Registration Certificate

Udyam Registration Certificate

Bell Engineering & Marketing is officially registered under the Government of India’s Udyam Registration system as a recognized MSME manufacturer of pressure gauges, vacuum gauges, temperature gauges, and industrial instrumentation products. This certification strengthens our credibility for industrial supply, OEM manufacturing, exports, and government-approved business operations across India and international markets.

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CE Certification for Pressure Gauges

CE Certification for Pressure Gauges

Bell Engineering & Marketing holds CE Certification for its industrial pressure gauges and instrumentation products, demonstrating compliance with European quality, safety, and performance standards. This certification supports our global export capabilities and ensures reliable performance for industrial, OEM, oil & gas, chemical, power, and process industry applications worldwide.

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ZED Certification

ZED Certification

Bell Engineering & Marketing is certified under the ZED (Zero Defect Zero Effect) Certification Scheme, recognizing our commitment to quality manufacturing, operational excellence, environmental responsibility, and sustainable industrial practices. This certification reflects our dedication to producing reliable pressure gauges and industrial instrumentation products with high precision, minimal defects, and eco-friendly manufacturing standards.

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IP68 Protection Certification

IP68 Protection Certification

Bell Engineering & Marketing’s IP68 certified pressure gauges and industrial instruments are designed for superior protection against dust, moisture, and water ingress in demanding industrial environments. This certification ensures reliable performance, durability, and long-term accuracy for applications in chemical plants, oil & gas, marine, power, water treatment, and outdoor industrial operations.

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EN 837-1 Compliance Certificate

EN 837-1 Compliance Certificate

Bell Engineering & Marketing manufactures pressure gauges in compliance with EN 837-1 standards, ensuring high accuracy, safety, reliability, and performance for industrial pressure measurement applications. This certification demonstrates adherence to internationally recognized European standards for pressure gauges used in process industries, oil & gas, power plants, chemical industries, and industrial automation systems.

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Quality Process

Our Testing & Calibration Process

Every gauge goes through a rigorous 6-step quality process before leaving our facility.

01

Raw Material Inspection

All incoming SS 316, brass and other materials inspected against material test certificates.

02

In-Process Calibration

Bourdon tube calibrated at multiple points using deadweight testers with NABL-traceable standards.

03

Leak & Pressure Test

100% pressure tested at 1.5× rated pressure with dry nitrogen for minimum 5 minutes.

04

Accuracy Verification

Pointer accuracy verified against calibrated reference gauges at 0%, 50% and 100% of span.

05

Final QC Inspection

Visual, dimensional and functional check. CE marking, range and accuracy class marked on dial.

06

Batch Documentation

Test certificate, calibration report and packing list issued with full lot traceability.

Need Certified Gauges?

Request Certificate Copies or Calibration Reports

We provide ISO 9001:2015 certificate, calibration certificates, material test certificates and test reports. Contact us with your batch or order number.

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