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Valves for Biogas & Biomass Plants — 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.

SS316L ball valves for biogas with H₂S, PVDF-lined butterfly valves for digestate, and IBR-certified gate valves for biomass-fired cogeneration steam boilers.

NACE MR0103 (H₂S service)ASME B16.34IBR 1950 (Biomass Steam)ATEX Zone 1 (Biogas)API 607 (Fire-Safe)
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API 6D Certified
ASME B16.34
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Biogas & Biomass Plants Valves — Available in Ulsan

Ball Valve (SS316L, Biogas)

Class 150 / 300

Biogas header isolation — H₂S + CO₂ + moisture environment; fire-safe and anti-static for ATEX Zone 1

Materials: A182 F316L forged body; SS316L ball; PTFE or FKM seats; anti-static spring  ·  Standards: API 607, API 6D, ATEX Zone 1
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Butterfly Valve (Rubber-Lined)

PN 10 / PN 16

Digestate and slurry transfer — abrasive, fibrous, pH 7–8; rubber lining protects body from abrasion

Materials: WCB body; EPDM lining and seat; SS316L disc for digestate corrosion resistance  ·  Standards: EN 593, API 609, ASME B16.34
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Gate Valve (IBR Biomass Steam)

Class 300 / 600

Biomass-fired boiler steam headers — IBR Form III-C and III-E mandatory for Indian biomass plants

Materials: A216 WCB (to 425°C); A217 WC6 for superheated steam above 425°C  ·  Standards: IBR 1950, ASME B16.34, API 600
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Pinch Valve

PN 6 / PN 10

Digestate with high solids content — no internal moving parts; self-cleaning sleeve; pneumatic pinch for slurry isolation

Materials: WCB body; natural rubber or EPDM sleeve; SS316L air connection  ·  Standards: ASME B16.34, EN ISO 6708
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Biogas & Biomass Plants 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

Biogas area (digester headspace, gas collection headers) — ATEX Zone 1; all actuators and accessories must carry Ex certification
H₂S in biogas — SS316L minimum for all wetted metallic parts; check NACE MR0103 if H₂S > 50 ppm partial pressure threshold
Digestate with fibrous solids — no wedge gate valves (fibre packs in cavity); use knife gate, rubber-lined butterfly, or pinch valves
Biogas fire-safe valves — all isolation valves on biogas headers must be fire-safe per API 607; biogas forms explosive mixtures at 5–15% vol in air
IBR certification for all biomass steam valves above 3.5 kg/cm² — Form III-C and III-E required
CIP compatibility for digestate valves — rubber seats must withstand 80°C caustic soda wash cycles during cleaning

Why Ulsan's Oil Refining (SK Innovation, S-OIL) Sector Needs Biogas & Biomass Plants 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 Ball Valve (SS316L, Biogas) for their oil refining (sk innovation, s-oil) operations. Vajra Industrial Solutions supplies Ball Valve (SS316L, Biogas), Butterfly Valve (Rubber-Lined), Gate Valve (IBR Biomass Steam), Pinch Valve for biogas & biomass plants projects across Ulsan, with full NACE MR0103 (H₂S service) and ASME B16.34 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 — Biogas & Biomass Plants Valves in Ulsan

Do you supply biogas & biomass plants valves in Ulsan?
Yes. Vajra Industrial Solutions supplies Ball Valve (SS316L, Biogas), Butterfly Valve (Rubber-Lined), Gate Valve (IBR Biomass Steam), Pinch Valve for biogas & biomass plants 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 biogas & biomass plants valves in Ulsan?
For biogas & biomass plants in Ulsan, the applicable standards are: NACE MR0103 (H₂S service), ASME B16.34, IBR 1950 (Biomass Steam), ATEX Zone 1 (Biogas), API 607 (Fire-Safe), API 598, 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 biogas & biomass plants 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.
Do biogas plant valves need ATEX certification?
Yes. The area around biogas digesters, gas collection headers, and biogas processing equipment is classified as ATEX Zone 1 (explosive atmosphere present intermittently during normal operations) or Zone 2 (present infrequently). All electrical equipment including valve actuators, solenoid valves, and limit switches must carry ATEX Ex-d or Ex-e certification for Zone 1. Pneumatic actuators without electrical components are inherently safe for Zone 1 if they use instrument air (not biogas) as the motive medium.
What is the best valve type for digestate with high solids content?
For digestate slurry (2–10% total solids, fibrous plant material), rubber-lined butterfly valves and pinch valves outperform conventional wedge gate or ball valves. Rubber-lined butterfly valves (DN80–DN600, EPDM lining, SS316L disc) provide good abrasion resistance and easy CIP compatibility. Pinch valves (elastomer sleeve) are best for the highest solids content where complete bore clearance is required. Avoid wedge gate valves — fibrous material packs into the body cavity and prevents gate seating.

Other Application Guides for Ulsan

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Biogas & Biomass Plants Valves — Ulsan

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Standards

NACE MR0103 (H₂S service)
ASME B16.34
IBR 1950 (Biomass Steam)
ATEX Zone 1 (Biogas)
API 607 (Fire-Safe)
API 598
IS 2825

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