Valves for LNG & Cryogenic Service - Mailiao

Name: Vajra Industrial Solutions
Address: 3rd Floor, 348, Aristo Complex, Opp. Sanghani Skyz, Navrachna University Road, Bhayali TP-2, Vadodara, Gujarat, 391410, IN
Telephone: +91-9979774557
Price range: $$

Extended-bonnet ball, gate, and globe valves for LNG, liquid nitrogen, liquid oxygen, and other cryogenic service - low-temperature impact tested materials.

BS 6364 (Cryogenic valves)ASME B16.34 Annex FAPI 6DEN 13942ASTM A350 LF2 / LF3

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API 6D Certified

ASME B16.34

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LNG & Cryogenic Service Valves - Available in Mailiao

Cryogenic Ball Valve (Extended Bonnet)

Class 150 / 300 / 600 / 900

Quarter-turn operation with extended bonnet to keep packing above cryogenic temperature; fire-safe in LNG service

Materials: A351 CF8M, A182 F316L, A350 LF2 (forged) - SS 316 stem and trim · Standards: BS 6364, API 6D, ASME B16.34, API 607

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Cryogenic Gate Valve (Extended Bonnet)

Class 150 / 300 / 600

Full-bore, straight-through isolation for LNG storage vessel and pipeline isolation

Materials: A350 LF2 (forged), A351 CF3M (cast SS316L low carbon), A182 F316L · Standards: BS 6364, ASME B16.34, API 600

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Cryogenic Globe Valve (Extended Bonnet)

Class 150 / 300 / 600

Flow control and throttling in LNG process and vent/flare systems

Materials: A350 LF2, A182 F316L, A351 CF3M · Standards: BS 6364, ASME B16.34

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Cryogenic Check Valve

Class 150 / 300

Non-return service on LNG pump discharge and send-out systems

Materials: A350 LF2, A351 CF8M, F316L · Standards: BS 6364, API 594, ASME B16.34

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LNG & Cryogenic Service Industry in Mailiao

Integrated PetrochemicalNaphtha CrackingOil RefiningPolymers & PlasticsCogeneration Power

Critical Valve Requirements

Charpy V-notch impact testing at design temperature (−46°C to −196°C) per ASTM A370

Extended bonnet design to maintain stem packing above −20°C minimum

Cryogenic testing per BS 6364: gas bubble leak test at operating temperature

Materials: ASTM A350 LF2 (forged) or A351 CF8M/CF3M (cast) - not A216 WCB

Fire-safe design (API 607) for LNG and flammable cryogenic fluids

Full-bore design where pigging or slug control is required

Seat material rated for cryogenic temperature - PTFE (to −200°C) or PEEK

Why Mailiao's Integrated Petrochemical Sector Needs LNG & Cryogenic Service Valves

Mailiao in Yunlin County hosts the Formosa Petrochemical (FPCC) Mailiao complex, one of the world's largest integrated petrochemical sites built around the Sixth Naphtha Cracker with a refinery, multiple olefins and aromatics trains, polymer plants, and captive cogeneration, served by a dedicated industrial port; naphtha-cracking, olefins, and polymer service drives demand for API 6D ball and gate valves in carbon and alloy steel for cracker, quench, and fractionation loops, cryogenic valves for ethylene and light-ends, low-fugitive-emission and bellows-seal valves for VOC service, high-temperature globe and check valves for furnace and steam systems, and API 526 relief valves; ASME B16.34, API standards, and international EPC specifications apply with full material certification and PMI; Vajra Industrial Solutions supplies Mailiao petrochemical operators and Taiwanese EPC contractors with cracker-grade, cryogenic, and low-emission valve packages with East Asia logistics. Key facilities in the Mailiao area - including Formosa Plastics FPCC Mailiao complex, Mailiao industrial port, Sixth Naphtha Cracker (No.6 Naphtha) - rely on Cryogenic Ball Valve (Extended Bonnet) for their integrated petrochemical operations. Vajra Industrial Solutions supplies Cryogenic Ball Valve (Extended Bonnet), Cryogenic Gate Valve (Extended Bonnet), Cryogenic Globe Valve (Extended Bonnet), Cryogenic Check Valve for lng & cryogenic service projects across Yunlin, with full BS 6364 (Cryogenic valves) and ASME B16.34 Annex F compliance documentation - EN 10204 3.1 material test certificates, API 598 pressure test reports, and third-party inspection co-ordination available for every order.

Delivery to Mailiao

Vajra Industrial Solutions offers export documentation and delivery to Mailiao in 7–14 business days. Emergency dispatch available for plant shutdowns and critical site requirements.

Also serving: Formosa Plastics FPCC Mailiao complex, Mailiao industrial port, Sixth Naphtha Cracker (No.6 Naphtha), Yunlin offshore corridor

FAQ - LNG & Cryogenic Service Valves in Mailiao

Do you supply lng & cryogenic service valves in Mailiao?

Yes. Vajra Industrial Solutions supplies Cryogenic Ball Valve (Extended Bonnet), Cryogenic Gate Valve (Extended Bonnet), Cryogenic Globe Valve (Extended Bonnet), Cryogenic Check Valve for lng & cryogenic service applications in Mailiao, Yunlin. Mailiao in Yunlin County hosts the Formosa Petrochemical (FPCC) Mailiao complex, one of the world's largest integrated petrochemical sites built around the Sixth Naphtha Cracker with a refinery, multiple olefins and aromatics trains, polymer plants, and captive cogeneration, served by a dedicated industrial port; naphtha-cracking, olefins, and polymer service drives demand for API 6D ball and gate valves in carbon and alloy steel for cracker, quench, and fractionation loops, cryogenic valves for ethylene and light-ends, low-fugitive-emission and bellows-seal valves for VOC service, high-temperature globe and check valves for furnace and steam systems, and API 526 relief valves; ASME B16.34, API standards, and international EPC specifications apply with full material certification and PMI; Vajra Industrial Solutions supplies Mailiao petrochemical operators and Taiwanese EPC contractors with cracker-grade, cryogenic, and low-emission valve packages with East Asia logistics. We offer export documentation and delivery to Mailiao in 7–14 business days with full documentation and third-party inspection.

What certifications are required for lng & cryogenic service valves in Mailiao?

For lng & cryogenic service in Mailiao, the applicable standards are: BS 6364 (Cryogenic valves), ASME B16.34 Annex F, API 6D, EN 13942, ASTM A350 LF2 / LF3, ASTM A182 F316L, MSS SP-134. All valves are supplied with full documentation including material test reports (EN 10204 3.1/3.2), pressure test certificates, and dimensional inspection reports. Third-party inspection (TPI) by EIL, Bureau Veritas, Lloyd's Register, or the client's nominated inspector can be arranged.

What is the delivery time for lng & cryogenic service valves to Mailiao?

Standard stock sizes: export documentation and delivery to Mailiao in 7–14 business days. Custom sizes and special materials (Duplex, Hastelloy, P91): 4–8 weeks manufacturing lead time. Express dispatch available for urgent site requirements. Contact us at +91-9979774557 or sales@vajravyuh.com with your specification and required delivery date.

What is an extended bonnet on a cryogenic valve?

An extended bonnet (also called a top-entry or long-bonnet valve) has an elongated bonnet section that moves the stem packing away from the extremely cold process fluid. This prevents the packing material from being exposed to cryogenic temperature (where it would lose elasticity and leak), and prevents atmospheric moisture from freezing around the packing gland. The extension length is calculated based on the process temperature and the acceptable minimum packing temperature.

What ASTM material is used for cryogenic valves?

For LNG (−162°C) and liquid nitrogen (−196°C): ASTM A351 CF8M or CF3M (cast SS 316/316L) and ASTM A182 F316L (forged). For liquid CO₂ and −46°C service: ASTM A350 LF2 (forged low-temperature carbon steel), Charpy impact tested at −46°C. Standard A216 WCB carbon steel must never be used in cryogenic service below −29°C.