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Valves for Ammonia & Fertiliser Plants - Sur

Sur on Oman's eastern coast is the home of Oman LNG at Qalhat - a three-train liquefaction complex producing around 10.4 million tonnes per year of LNG for export, supported by upstream gas processing, the large Sur independent power project, and a growing port and industrial base; LNG and cryogenic service impose the most demanding valve requirements in the Sultanate - cryogenic gate, ball, and globe valves in A352 LCC and SS 316 with BS 6364 extended bonnets for LNG service down to -162 degrees C, API 6D full-bore pipeline ball valves for feed-gas and send-out lines, NACE MR0175 valves for sour feed-gas processing, fire-safe API 607 valves for all hydrocarbon duty, and ASME B16.34 Class 300-900 gate and globe valves for gas treating, refrigerant, and utility systems; Oman LNG and PDO specifications, cryogenic type-testing, and full MTCs are mandatory; Vajra Industrial Solutions supplies Sur LNG shutdown teams, power-plant operators, and their EPC and maintenance contractors with cryogenic valve packages, API 6D pipeline valves, and ASME B16.34 process valves with full specification compliance and export documentation.

High-pressure WC9 gate valves, LF2 ball valves, and NACE MR0103-compliant valves for ammonia synthesis loops, urea reactors, and fertiliser production systems.

API 6DAPI 526 (PSV)NACE MR0103ASME B16.34API 598
API 6D Certified
ASME B16.34
ISO 9001:2015
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Ammonia & Fertiliser Plants Valves - Available in Sur

Gate Valve (A217 WC9)

Class 600 / 900 / 1500

High-temperature, high-pressure synthesis loop isolation; hydrogen service at 200–300 bar

Materials: A217 WC9 (Cr-Mo alloy steel), A182 F22 forged for smaller sizes  ·  Standards: API 600, ASME B16.34, API 598
View Gate Valve (A217 WC9) options for Sur

Ball Valve (A350 LF2)

Class 150 / 300

Cryogenic liquid ammonia storage (−33°C) - extended bonnet, anti-static, fire-safe

Materials: A350 LF2, A182 F316L for urea service; PTFE seats rated to −46°C  ·  Standards: API 6D, API 607, BS 6364 (cryogenic)
View Ball Valve (A350 LF2) options for Sur

Safety Relief Valve

Class 300 / 600 / 900

Synthesis loop, NH₃ storage sphere, and urea reactor overpressure protection per API 526

Materials: A351 CF8M (SS316), A216 WCB with Stellite trim for high-cycle service  ·  Standards: API 526, API 527, ASME Section VIII
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Globe Valve (IBR)

Class 300 / 600

Steam service on cogeneration boiler - IBR Form III-C/III-E certification mandatory

Materials: A216 WCB to Class 600; A217 WC6/WC9 for high-temperature steam above 425°C  ·  Standards: IBR 1950, ASME B16.34, IS 9395
View Globe Valve (IBR) options for Sur

Ammonia & Fertiliser Plants Industry in Sur

Sur on Oman's eastern coast is the home of Oman LNG at Qalhat - a three-train liquefaction complex producing around 10.4 million tonnes per year of LNG for export, supported by upstream gas processing, the large Sur independent power project, and a growing port and industrial base; LNG and cryogenic service impose the most demanding valve requirements in the Sultanate - cryogenic gate, ball, and globe valves in A352 LCC and SS 316 with BS 6364 extended bonnets for LNG service down to -162 degrees C, API 6D full-bore pipeline ball valves for feed-gas and send-out lines, NACE MR0175 valves for sour feed-gas processing, fire-safe API 607 valves for all hydrocarbon duty, and ASME B16.34 Class 300-900 gate and globe valves for gas treating, refrigerant, and utility systems; Oman LNG and PDO specifications, cryogenic type-testing, and full MTCs are mandatory; Vajra Industrial Solutions supplies Sur LNG shutdown teams, power-plant operators, and their EPC and maintenance contractors with cryogenic valve packages, API 6D pipeline valves, and ASME B16.34 process valves with full specification compliance and export documentation.

LNG (Oman LNG Qalhat - 3 trains, ~10.4 MTPA)Natural Gas Processing & ExportPower Generation (Sur IPP - 2,000 MW+ combined cycle)Petrochemicals & Fertilisers (nearby)Ports, Shipbuilding & EPC

Critical Valve Requirements

Hydrogen service valves must comply with NACE MR0103 (refinery sour service) - hardness limits on body, trim, and fasteners
Ammonia service - extended bonnets for cryogenic applications below −29°C; fire-safe design per API 607
Urea melt valves - SS316L trim with PTFE packing; no copper-based alloys (urea attacks copper)
IBR certification for all steam valves above 3.5 kg/cm² - Form III-C material cert and Form III-E hydraulic test
API 526 compliance for all pressure safety valves; back-pressure correction for superimposed back-pressure
Anti-static and fire-safe design for liquid NH₃ storage valves - API 607 7th edition minimum

Why Sur's LNG (Oman LNG Qalhat - 3 trains, ~10.4 MTPA) Sector Needs Ammonia & Fertiliser Plants Valves

Sur on Oman's eastern coast is the home of Oman LNG at Qalhat - a three-train liquefaction complex producing around 10.4 million tonnes per year of LNG for export, supported by upstream gas processing, the large Sur independent power project, and a growing port and industrial base; LNG and cryogenic service impose the most demanding valve requirements in the Sultanate - cryogenic gate, ball, and globe valves in A352 LCC and SS 316 with BS 6364 extended bonnets for LNG service down to -162 degrees C, API 6D full-bore pipeline ball valves for feed-gas and send-out lines, NACE MR0175 valves for sour feed-gas processing, fire-safe API 607 valves for all hydrocarbon duty, and ASME B16.34 Class 300-900 gate and globe valves for gas treating, refrigerant, and utility systems; Oman LNG and PDO specifications, cryogenic type-testing, and full MTCs are mandatory; Vajra Industrial Solutions supplies Sur LNG shutdown teams, power-plant operators, and their EPC and maintenance contractors with cryogenic valve packages, API 6D pipeline valves, and ASME B16.34 process valves with full specification compliance and export documentation. Key facilities in the Sur area - including Oman LNG / Qalhat LNG complex (3 liquefaction trains), Sur Independent Power Project (2,000 MW+), Qalhat gas processing and export terminal - rely on Gate Valve (A217 WC9) for their lng (oman lng qalhat - 3 trains, ~10.4 mtpa) operations. Vajra Industrial Solutions supplies Gate Valve (A217 WC9), Ball Valve (A350 LF2), Safety Relief Valve, Globe Valve (IBR) for ammonia & fertiliser plants projects across Ash Sharqiyah, with full API 6D and API 526 (PSV) 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 Sur

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

Also serving: Oman LNG / Qalhat LNG complex (3 liquefaction trains), Sur Independent Power Project (2,000 MW+), Qalhat gas processing and export terminal, Sur port and dhow-building yards

FAQ - Ammonia & Fertiliser Plants Valves in Sur

Do you supply ammonia & fertiliser plants valves in Sur?
Yes. Vajra Industrial Solutions supplies Gate Valve (A217 WC9), Ball Valve (A350 LF2), Safety Relief Valve, Globe Valve (IBR) for ammonia & fertiliser plants applications in Sur, Ash Sharqiyah. Sur on Oman's eastern coast is the home of Oman LNG at Qalhat - a three-train liquefaction complex producing around 10.4 million tonnes per year of LNG for export, supported by upstream gas processing, the large Sur independent power project, and a growing port and industrial base; LNG and cryogenic service impose the most demanding valve requirements in the Sultanate - cryogenic gate, ball, and globe valves in A352 LCC and SS 316 with BS 6364 extended bonnets for LNG service down to -162 degrees C, API 6D full-bore pipeline ball valves for feed-gas and send-out lines, NACE MR0175 valves for sour feed-gas processing, fire-safe API 607 valves for all hydrocarbon duty, and ASME B16.34 Class 300-900 gate and globe valves for gas treating, refrigerant, and utility systems; Oman LNG and PDO specifications, cryogenic type-testing, and full MTCs are mandatory; Vajra Industrial Solutions supplies Sur LNG shutdown teams, power-plant operators, and their EPC and maintenance contractors with cryogenic valve packages, API 6D pipeline valves, and ASME B16.34 process valves with full specification compliance and export documentation. We offer export documentation and delivery to Sur in 7–14 business days with full documentation and third-party inspection.
What certifications are required for ammonia & fertiliser plants valves in Sur?
For ammonia & fertiliser plants in Sur, the applicable standards are: API 6D, API 526 (PSV), NACE MR0103, ASME B16.34, API 598, IBR (Steam Valves), IS 2825. 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 ammonia & fertiliser plants valves to Sur?
Standard stock sizes: export documentation and delivery to Sur 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 valve material should I use for anhydrous ammonia service?
For liquid ammonia (−33°C to ambient), use A350 LF2 carbon steel body with PTFE seats and SS316 trim - no copper, brass, or zinc alloys. For synthesis loop gas (H₂/N₂ at 150–300 bar), use A217 WC9 (Cr-Mo alloy) gate valves verified against the API 941 Nelson curves for hydrogen attack. For urea melt (185°C, 150 bar), SS316L is mandatory - carbamate in the loop attacks carbon steel rapidly.
Do ammonia plant valves need NACE MR0103 certification?
NACE MR0103 (Materials Resistant to Sulfphide Stress Cracking in Corrosive Petroleum Refining Environments) applies when H₂S is present - common in ammonia plants using natural gas feedstock via desulphurisation. Key requirement: body and trim hardness ≤ HRC 22 (Rockwell C). If your feedstock is H₂S-free coal or electrolysis, NACE may not be mandatory, but most licensors (Haldor Topsoe, KBR, Casale) specify it as a precaution.

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Ammonia & Fertiliser Plants Valves - Sur

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Standards

API 6D
API 526 (PSV)
NACE MR0103
ASME B16.34
API 598
IBR (Steam Valves)
IS 2825