US regions

Choke and kill fittings and manifold parts for the Gulf of America

Offshore choke and kill systems are built to API Standard 53, which federal rules for the Gulf of America, the Gulf of Mexico on older charts, call up for BOP systems. We supply the 4130 parts inside them.

Studded cross: a forged block with a ring groove and studs on each of its four faces, bores meeting in the middleStudsRing groove, each faceOne forged 4130 block
Studded cross: the compact junction choke and kill manifolds are built from.

We supply offshore drilling contractors, rig equipment makers and Louisiana service companies with the AISI 4130 parts of choke and kill systems: long sweeps and double-back elbows, heavy-wall pipe and fittings, studded tees and crosses, API 6A flanges, clamp hub connections and fabricated manifolds, made to API Standard 53 and API 6A requirements without the API Monogram. Parts are made in India and delivered to Lafayette, Houma and the supply bases on the Louisiana coast.

What offshore rigs ask of high-pressure equipment

Federal rules set the frame. For the outer continental shelf, 30 CFR 250.730 requires BOP systems to meet API Standard 53 and the applicable provisions of API 6A and API 16C. API Standard 53 sets how choke and kill lines turn: through targeted fittings or bends of large radius, which is where 4130 long sweeps, double-back elbows and targeted blocks come in. The Federal Gulf of America produced about 1.9 million barrels of crude oil a day in 2025.

Offshore orders also carry heavier paperwork and marine conditions: third-party inspection by the classification society or agency you name, EN 10204 3.2 certificates, CRA inlay of ring grooves and bores where the specification calls for it, and coatings for salt air. All of it is written into the quotation, line by line.

What offshore buyers order from us

Choke and kill line fittings, studded blocks, flanges and hubs, and manifolds to drawing lead offshore orders.

Getting parts to the Louisiana coast

Containers land at Port Houston or New Orleans and go by truck to Lafayette, Houma or the Port Fourchon supply bases, or to the yard building the equipment. The quotation can stop at an Indian port or a US port, or your forwarder can carry it to your door.

Nearby regions: Houston, TX, Haynesville.

We have no US office or US stock: every order is made to your line list and ships from India with its EN 10204 3.1 certificates, packing list and commercial invoice. Your customs broker files the entry and confirms the duties. The steps, documents and marking rules are in ordering from India.

Working across time zones

India Standard Time is 10 hours 30 minutes ahead of Central time in summer and 11 hours 30 minutes ahead in winter, so our working day in India falls during your night. Email sales@vixonpiping.com or WhatsApp +91 74338 71355 at any hour, and send drawings and line lists with the request so nothing waits for a second round of questions.

Example line item

Example line item

Long sweep elbow, 90°, 3 in XXS bore, butt weld to ASME B16.25, AISI 4130 quenched and tempered, 85 ksi min yield, 110 ksi min tensile, for 15,000 psi choke line, Charpy at -20 °F, EN 10204 3.2 with third-party inspection, 6 pcs

Frequently asked questions

Is it the Gulf of Mexico or the Gulf of America?

The same water. US federal agencies have used Gulf of America since 2025; many specifications and charts still say Gulf of Mexico. Either name on your order is fine.

Can parts be inspected by a classification society?

Yes. The society or agency you name can witness stage and final inspection at our works, and EN 10204 3.2 certificates are issued with them.

Sources

Send us your 4130 line list

A BOM, a line list or a drawing all work. For each line item, tell us:

  • Product and geometry, for example a 90° long radius elbow or a 2 in FIG 1502 integral tee
  • Size and wall: NPS and schedule, or OD by ID
  • Working pressure, strength level and heat treatment, for example 15,000 psi, 75K, quenched and tempered
  • Sour service, temperature class, tests, quantity and destination
Request a quote WhatsApp +91 74338 71355

Or email sales@vixonpiping.com. Small mixed orders are welcome, and every enquiry gets a reply.

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