BHEL Vellore Taper Ring & Plug Gauge Tender 311/101.6/210 Dia 95% Blue Match NABL 2026

Bidders must submit NABL-inspected taper ring and plug gauges with diameters 311, 101.6, and 210 mm. Include blue matching certification showing 95% minimum accuracy, NABL inspection report, and conformance notes. The tender allows ±25% quantity variation; ensure delivery timelines align with the option clause and provide all required documentation.

Submit NABL lab inspection report for both gauge types, blue matching/conformity certificate (95% min), technical compliance notes for diameters 311/101.6/210 mm, and any OEM authorizations if applicable. Include supplier qualifications demonstrating capacity to meet metrology-grade accuracy.

Gauges must include taper ring and taper plug sets in diameters 311 mm, 101.6 mm, and 210 mm. Ensure blue matching between rings and plugs to at least 95% accuracy and obtain NABL lab inspection with a formal report submitted with the bid.

Delivery periods may be extended by the option clause when quantity changes occur. Extension is calculated as (Increased quantity ÷ Original quantity) × Original delivery period, with a minimum extension of 30 days unless the original period exceeds that.

Bidders must procure both taper ring and taper plug gauges and obtain an inspection report from a NABL-certified lab. The bid requires submission of the NABL inspection report evidencing conformance to blue-matching and diameter specifications.

Taper ring gauges must be blue-matched with their corresponding taper plug gauges, achieving a minimum of 95% matching accuracy. This color-coding ensures traceability and proper pairing during quality checks.

Eligibility includes prior experience with precision gauge supply or similar metrology tools, NABL-compliant inspection capabilities, and ability to provide OEM authorizations if required. Bidders must demonstrate capacity to meet diameter tolerances and blue-matching standards.