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Valves for Water Treatment & Desalination — Ulsan

Ulsan is South Korea's industrial powerhouse — home to SK Innovation's Ulsan refinery (840,000 bpd, South Korea's largest), S-OIL's Onsan refinery (669,000 bpd), and Hyundai Heavy Industries' shipyard (world's largest single shipbuilding complex); the city's LNG receiving terminals require cryogenic-rated ball valves and butterfly valves per KGS (Korean Gas Safety) and API 6D standards; Vajra Industrial Solutions supplies API 6D ball valves, ASME B16.34 gate and globe valves, and fire-tested butterfly valves to Ulsan refineries and shipbuilding contractors — Korean customs HS code declarations, EN 10204 3.1 MTCs, and Korean Industrial Standards (KS) compliant documentation provided.

Butterfly, gate, check, and diaphragm valves for water treatment, RO desalination, and municipal water distribution — DI, CS, SS 316 materials.

EN 593 (Butterfly valves)AWWA C504 / C509 / C515ISO 9001:2015IS 780 / IS 14846BS EN 1171 (Cast iron gate valves)
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ASME B16.34
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Water Treatment & Desalination Valves — Available in Ulsan

Concentric Butterfly Valve

PN 6 / PN 10 / PN 16

Most common isolation and throttling valve for water treatment — low cost, large bore availability, EPDM seat

Materials: Ductile iron (GGG-50/GJS-500-7), SS 316 for saline/high-chlorine service  ·  Standards: EN 593, AWWA C504, IS 13095
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Resilient-Seated Gate Valve

PN 10 / PN 16 (AWWA 150 psi)

Full-bore isolation in buried service, pumping stations, and distribution networks

Materials: Ductile iron with rubber-encapsulated wedge, fusion-bonded epoxy coating  ·  Standards: AWWA C509 / C515, IS 14846, EN 1171
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Swing Check Valve

PN 10 / PN 16

Pump discharge anti-backflow protection in pumping stations and rising mains

Materials: Ductile iron or DI with SS 316 disc, EPDM seat  ·  Standards: EN 12334, AWWA, IS 5312
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Diaphragm Valve (Rubber-Lined)

PN 10 / PN 16

Chemical dosing and slurry handling in WTP filter backwash and sludge lines

Materials: DI body with natural rubber or EPDM lining; PP or PVDF for chemical service  ·  Standards: ISO 16138, EN 13397
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Water Treatment & Desalination Industry in Ulsan

Ulsan is South Korea's industrial powerhouse — home to SK Innovation's Ulsan refinery (840,000 bpd, South Korea's largest), S-OIL's Onsan refinery (669,000 bpd), and Hyundai Heavy Industries' shipyard (world's largest single shipbuilding complex); the city's LNG receiving terminals require cryogenic-rated ball valves and butterfly valves per KGS (Korean Gas Safety) and API 6D standards; Vajra Industrial Solutions supplies API 6D ball valves, ASME B16.34 gate and globe valves, and fire-tested butterfly valves to Ulsan refineries and shipbuilding contractors — Korean customs HS code declarations, EN 10204 3.1 MTCs, and Korean Industrial Standards (KS) compliant documentation provided.

Oil Refining (SK Innovation, S-OIL)Petrochemical ManufacturingShipbuilding & Offshore (Hyundai Heavy Industries)LNG Receiving TerminalsAutomotive Manufacturing (Hyundai Motor)

Critical Valve Requirements

Drinking water contact compliance: WRAS / NSF 61 / IS potable water certification for epoxy coatings and elastomers
Corrosion protection: fusion-bonded epoxy (FBE) or Rilsan (polyamide) coating for buried ductile iron valves
EPDM elastomers — chlorine and ozone resistant for treated water service
Large bore availability — DN 200–DN 1200 butterfly valves for major distribution mains
Actuator compatibility for remote operation in WTP control systems
Extended service life (20–40 years expected) — heavy-duty ductile iron construction

Why Ulsan's Oil Refining (SK Innovation, S-OIL) Sector Needs Water Treatment & Desalination Valves

Ulsan is South Korea's industrial powerhouse — home to SK Innovation's Ulsan refinery (840,000 bpd, South Korea's largest), S-OIL's Onsan refinery (669,000 bpd), and Hyundai Heavy Industries' shipyard (world's largest single shipbuilding complex); the city's LNG receiving terminals require cryogenic-rated ball valves and butterfly valves per KGS (Korean Gas Safety) and API 6D standards; Vajra Industrial Solutions supplies API 6D ball valves, ASME B16.34 gate and globe valves, and fire-tested butterfly valves to Ulsan refineries and shipbuilding contractors — Korean customs HS code declarations, EN 10204 3.1 MTCs, and Korean Industrial Standards (KS) compliant documentation provided. Key facilities in the Ulsan area — including SK Innovation Ulsan Refinery (840,000 bpd — South Korea's largest), S-OIL Onsan Refinery (669,000 bpd), Hyundai Heavy Industries Ulsan Shipyard (world's largest) — rely on Concentric Butterfly Valve for their oil refining (sk innovation, s-oil) operations. Vajra Industrial Solutions supplies Concentric Butterfly Valve, Resilient-Seated Gate Valve, Swing Check Valve, Diaphragm Valve (Rubber-Lined) for water treatment & desalination projects across Ulsan, with full EN 593 (Butterfly valves) and AWWA C504 / C509 / C515 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 Ulsan

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

Also serving: SK Innovation Ulsan Refinery (840,000 bpd — South Korea's largest), S-OIL Onsan Refinery (669,000 bpd), Hyundai Heavy Industries Ulsan Shipyard (world's largest), Korea Gas Corporation (KOGAS) Tongyeong LNG terminal, Hyundai Motor Ulsan plant (1.5M cars/yr)

FAQ — Water Treatment & Desalination Valves in Ulsan

Do you supply water treatment & desalination valves in Ulsan?
Yes. Vajra Industrial Solutions supplies Concentric Butterfly Valve, Resilient-Seated Gate Valve, Swing Check Valve, Diaphragm Valve (Rubber-Lined) for water treatment & desalination applications in Ulsan, Ulsan. Ulsan is South Korea's industrial powerhouse — home to SK Innovation's Ulsan refinery (840,000 bpd, South Korea's largest), S-OIL's Onsan refinery (669,000 bpd), and Hyundai Heavy Industries' shipyard (world's largest single shipbuilding complex); the city's LNG receiving terminals require cryogenic-rated ball valves and butterfly valves per KGS (Korean Gas Safety) and API 6D standards; Vajra Industrial Solutions supplies API 6D ball valves, ASME B16.34 gate and globe valves, and fire-tested butterfly valves to Ulsan refineries and shipbuilding contractors — Korean customs HS code declarations, EN 10204 3.1 MTCs, and Korean Industrial Standards (KS) compliant documentation provided. We offer export documentation and delivery to Ulsan in 7–14 business days with full documentation and third-party inspection.
What certifications are required for water treatment & desalination valves in Ulsan?
For water treatment & desalination in Ulsan, the applicable standards are: EN 593 (Butterfly valves), AWWA C504 / C509 / C515, ISO 9001:2015, IS 780 / IS 14846, BS EN 1171 (Cast iron gate valves), WRAS / NSF 61 (Drinking water contact). 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 water treatment & desalination valves to Ulsan?
Standard stock sizes: export documentation and delivery to Ulsan 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 butterfly valve standard applies to water treatment in India?
For water treatment in India, butterfly valves are specified per IS 13095 (Indian Standard for butterfly valves for water supply and sewerage), EN 593 (European standard), or AWWA C504. IS 13095 is the most common for domestic municipal projects. The valve body is typically ductile iron (GGG-50 per ISO 1083 or IS 1865) with EPDM seat. For export-oriented projects or international standards (World Bank, JICA-funded), EN 593 or AWWA C504 is specified.
What valves are used in RO desalination plants?
RO desalination plants use several valve types: High-pressure butterfly valves or ball valves (in SS 316 or Duplex) for RO membrane train isolation; energy recovery devices (ERD) require high-cycle valves with precise control; brine reject lines use SS 316 due to high chloride concentration; pre-treatment (clarification, filtration) uses ductile iron butterfly valves. All valves in contact with potable water must comply with NSF 61 or equivalent.

Other Application Guides for Ulsan

Oil & Gas PipelinesPharmaceutical & Biotech (Cleanroom / Hygienic)LNG & Cryogenic ServiceRefinery & Petrochemical ProcessPower Generation (Thermal, Gas, Hydro)Marine & Offshore ServiceMining & Mineral ProcessingHVAC & Building ServicesChemical & Petrochemical ProcessingHygienic Food & Beverage ProcessingHydrogen & Clean Energy ServiceDesalination & High-Purity WaterPulp & Paper Industry

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Water Treatment & Desalination Valves — Ulsan

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Standards

EN 593 (Butterfly valves)
AWWA C504 / C509 / C515
ISO 9001:2015
IS 780 / IS 14846
BS EN 1171 (Cast iron gate valves)
WRAS / NSF 61 (Drinking water contact)

Product Categories

Gate Valves Butterfly Valves Check Valves Diaphragm Valves

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