Quality & Testing
Quality is built into the process, not inspected in at the end — traceable material, controlled machining, documented testing and consistent packing on every order.
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Fittings That Seal the First Time
At Kalpataru Pipe & Fittings, our quality policy is simple: supply instrumentation fittings and valves that meet the ordered specification, seal reliably in service and arrive with complete, honest documentation.
We achieve this by verifying raw material before machining, controlling dimensions during production, pressure testing before packing and keeping heat-number traceability from bar stock to finished part — while continually improving our processes and reducing our environmental impact in line with ISO 14001 and ZED principles.
- MTC-verified raw material
- Heat code traceability
- Thread gauge inspection
- Pressure tested
- Documented results
- Continual improvement
Our Quality Assurance Process
Incoming Material Check
Bar stock and forgings checked against the mill test certificate (MTC) for grade, size and heat number.
PMI
Positive material identification confirms the alloy chemistry before the material is released to machining.
In-Process Inspection
Dimensional checks at set intervals during CNC machining on bores, lengths, hex sizes and sealing faces.
Thread Gauging
NPT, BSP, BSPT and other threads verified with plug and ring gauges for correct form and engagement.
Hydro / Pneumatic Testing
Shell and seat testing of valves and pressure testing of fittings to confirm leak-tight performance.
Final Inspection
Visual, marking and quantity check against the order before parts are bagged, tagged and packed.
Documentation
Material certificates and test certificates compiled and dispatched with the consignment.
Tests & Inspections We Perform
| Test / Inspection | Method | Applied To |
|---|---|---|
| Hydrostatic Shell Test | Body pressurised with water above rated working pressure, held and checked for leakage or deformation | Needle, manifold, gauge, mono flange, ball & check valves |
| Seat Leak Test | Air / nitrogen applied against the closed seat, checked air-under-water for bubbles | Needle, manifold, ball & check valves |
| Pneumatic Test | Air / nitrogen pressure test with leak detection | Tube fittings, valves, air headers |
| PMI | Positive material identification of alloy chemistry | Raw material & finished parts in SS and alloy grades |
| Dimensional Inspection | Vernier, micrometer and height gauge checks against drawing | All fittings, valves and accessories |
| Thread Gauging | Plug and ring thread gauges (NPT, BSP, BSPT, UNF, Metric) | All threaded ends |
| Hardness Test | Hardness check on material and critical components | Bar stock, ferrules, valve stems |
| Visual Inspection | Surface finish, burrs, sealing faces and marking | 100% of finished products |
Documents Supplied With Your Order
EN 10204 3.1 MTC
Material test certificate with heat number, chemical composition and mechanical properties.
Test Certificate
Pressure test and inspection report for the supplied valves and fittings.
Third Party Inspection
TPI by your nominated agency — available on request.
NACE Compliance
Material conforming to NACE requirements for sour service — available on request.
Oxygen Cleaning
Cleaning for oxygen service — available on request.
Heat Code Traceability
Heat numbers marked and recorded so every part can be traced back to its material certificate.
Certified & Registered
ISO 14001
Environmental management system certification, issued by AQSR (USAC accredited).
ZED Certified
Zero Defect Zero Effect certification — quality manufacturing with minimal environmental impact.
MSME Registered
Registered Micro, Small & Medium Enterprise under the Government of India.
Quality Questions Answered
Are all your products pressure tested?
Do you provide EN 10204 3.1 material certificates?
Can a third party inspect the material before dispatch?
Do you offer NACE compliant material or oxygen cleaning?
Need Certified Fittings for Your Project?
Send your bill of materials and inspection requirements — we will quote with documentation and delivery schedule.