Every item fully traceable

Standard document package

• Material test certificate, EN 10204 3.1: chemical composition and mechanical properties of the pressure-containing parts, traceable to heat number marked on the item. 3.2 certification by an independent inspector is available on request.
• Pressure test report, API 598 / API 6D: shell test, high-pressure and low-pressure seat tests, with test pressures, duration and acceptance criteria recorded per serial number.
• Certificate of origin: confirms the country of manufacture of every item, matching the manufacturer and origin stated in our quotation.
• Manufacturer's certificate of conformity: statement that the valve or fitting conforms to the design standard and the purchase order.
• Packing list and marking: items tagged with PO line number, tag number and heat number for easy receiving.

On request

• NACE MR0175 / ISO 15156 compliance statements for sour service
• Fire-safe certificates to API 607 and API 6FA
• Fugitive-emission test certificates to ISO 15848
• Cryogenic test reports
• NDE reports: dye penetrant, magnetic particle, ultrasonic, radiography
• PMI and hardness test reports
• Third-party inspection release notes from your nominated agency
• Inspection and test plans (ITP) agreed before manufacture or modification

Standards we supply against

• Valve design: API 600, API 602, API 603, API 608, API 609, API 594, API 6D, BS 1873, BS 1868, BS 1414, ASME B16.34, EN 593, ISO 17292
• Testing: API 598, API 6D, EN 12266, API 607, API 6FA, ISO 15848
• Materials: ASTM A216, A217, A351, A352, A105, A182, A350, A193, A194, A320, API 5L, A106, A312, A790, A234, A403
• Flanges, fittings and gaskets: ASME B16.5, B16.47, B16.9, B16.11, B16.20, B16.21, MSS SP-44, MSS SP-97
• Sour service: NACE MR0175 / ISO 15156, NACE MR0103

How to read a material test certificate

An EN 10204 material test certificate (MTC) is the document that proves what a valve, flange or pipe is made of. Reading one takes a minute once you know where to look: the heat number at the top ties the certificate to the melt of steel and must match the number stamped or tagged on the item; the material grade (for example ASTM A216 WCB or A182 F316) must match the purchase order and the piping class; the chemical analysis table lists carbon, manganese, silicon, phosphorus, sulphur and alloying elements, each within the limits of the grade; the mechanical properties table shows tensile strength, yield strength, elongation and, where the grade requires it, impact energy at the test temperature and hardness. For valves, the certificate covers the pressure-containing parts: body, bonnet or cover, and often the disc or ball and stem.

EN 10204 3.1 vs 3.2

A 3.1 certificate is issued by the manufacturer's own quality department, independent of production, on the basis of the manufacturer's tests. It is the standard document for valves and piping materials and is what Pakistani operators mean when they ask for "MTC 3.1". A 3.2 certificate is the same test data countersigned by an independent inspector, either the purchaser's representative or a third-party agency such as SGS, Bureau Veritas, TÜV or Lloyd's, who witnesses the tests or verifies them against the records. Specify 3.2 when the piping class, the project's inspection and test plan or the end user's QA procedure calls for it, typically on high-class, sour-service, cryogenic or critical-service items. We arrange the inspector and the visit in Dubai or at the manufacturer; allow one to three weeks and the agency's fee.

What is not an MTC

A trader's "certificate of conformity" on its own letterhead, a type-test report for a different valve, or a certificate whose heat number does not appear on the item are not material test certificates and will be rejected by any competent inspector. Every MTC we supply comes from the manufacturer and carries the heat number marked on the item.

API licences, authorisation letters and why tenders get rejected

Pakistani operators and their engineering consultants evaluate valve bids on documents as much as on price. Public tender evaluations by OGDCL, PPL, SNGPL and others show the same reasons for disqualification, year after year: the bidder quoted "API 6D" but did not attach the manufacturer's API monogram licence; the bid named a manufacturer but carried no authorisation letter from that manufacturer for the tender; the country of origin on the offer did not match the manufacturer's plant; the fire-safe or NACE compliance was stated by the bidder, not certified by the manufacturer. Each of these is avoidable, and our quotations are built to avoid them.

• API licence copy: the current certificate from the American Petroleum Institute showing the manufacturer, plant address, licence number, the specification (API 6D, 600, 602, 608, 609, 594) and the expiry date. We attach it for every manufacturer we quote.
• Manufacturer's authorisation letter: a letter on the manufacturer's letterhead naming the tender and the bidder, confirming that the manufacturer will supply through us and honour the warranty. Available from the manufacturers we hold stock of; send the tender reference and we obtain it.
• Country of origin: stated in the quotation per line and confirmed on the certificate of origin at shipment.
• Fire-safe and sour-service certificates: the manufacturer's API 607 or API 6FA fire-test certificate and the NACE MR0175 / ISO 15156 declaration on the manufacturer's material certificate, not a statement by the bidder.
• Test reports per serial number: API 598 or API 6D hydrostatic shell and seat test records with pressures, hold times and results, issued by the manufacturer for each valve.

Al Hakim's workshop

Modification, testing and actuation are carried out in the Dubai workshop of our sister company Al Hakim Flow Control Valves LLC, with calibrated test equipment and documented procedures. Witnessed testing and third-party inspection can be arranged there before shipment to Pakistan, saving time at site.

Receiving at site

We check every document package against the purchase order before dispatch, so that heat numbers on the certificates match the items in the crate and the markings on the valves. If your inspector needs a particular format, tell us at enquiry stage and we will build the package to suit.

Documentation by product line

What each page of the package covers depends on the product. The standard set for each line is listed on its page: gate valves, globe valves, check valves, ball valves, butterfly valves, forged steel valves, instrumentation valves, actuated valves, pipes & tubes, pipe fittings, flanges, gaskets, stud bolts & fasteners.