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Valves for Chlor-Alkali Plants — Aberdeen

Aberdeen is the UK's oil capital and the operational hub for North Sea UKCS (UK Continental Shelf) production — home to over 1,000 energy companies including Shell, TotalEnergies, Harbour Energy, Wood Group, Petrofac, and Subsea7; the UKCS demands UKCA-marked and PED 2014/68/EU compliant gate valves, ball valves, and choke valves with NACE MR0175 sour service compliance for Clair Ridge, Elgin-Franklin, and Shetland Gas Plant service, plus subsea ball valves and ROV-operable gate valves for deepwater installations.

PVDF-lined butterfly valves for wet chlorine gas, Hastelloy C-276 and titanium ball valves for hydrochloric acid, and SS316L diaphragm valves for caustic soda (NaOH) service.

ASME B16.34ISO 9001:2015API 609 (Butterfly)EN 12756 (Valve Stuffing Boxes)ATEX / IECEx (Chlorine Zone 1)
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Chlor-Alkali Plants Valves — Available in Aberdeen

PVDF-Lined Butterfly Valve

PN 10 / PN 16

Wet chlorine gas isolation — PVDF lining (or solid PVDF body) is uniquely resistant to wet Cl₂; titanium disc for highest corrosion resistance

Materials: WCB or SS316 shell; PVDF lining; titanium disc; FKM seat for Cl₂ service  ·  Standards: API 609, Chlorine Institute Pamphlet 6, ATEX Zone 1
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Hastelloy C-276 Ball Valve

Class 150 / 300

Hydrochloric acid (all concentrations, up to 100°C) — only Hastelloy C-276 and titanium resist HCl above 10% concentration

Materials: Hastelloy C-276 (UNS N10276) body, ball, and stem; PTFE seats  ·  Standards: ASME B16.34, API 607 (fire-safe HCl service)
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SS316L Diaphragm Valve

PN 10 / PN 16

Caustic soda (NaOH 30–50%) process and transfer — SS316L body with EPDM diaphragm; also used for sodium hypochlorite

Materials: A351 CF3M (SS316L cast) or A182 F316L forged; EPDM diaphragm  ·  Standards: ASME B16.34, DIN 3202 (diaphragm valves)
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Titanium Ball Valve

Class 150 / 300

Brine service and wet chlorine — Grade 2 titanium resists both Cl₂ and HCl; used in electrolysis cell connections

Materials: Titanium Grade 2 (UNS R50400) body, ball, and stem; PTFE seats  ·  Standards: ASTM B265 (titanium sheet), ASME B16.34
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Chlor-Alkali Plants Industry in Aberdeen

Aberdeen is the UK's oil capital and the operational hub for North Sea UKCS (UK Continental Shelf) production — home to over 1,000 energy companies including Shell, TotalEnergies, Harbour Energy, Wood Group, Petrofac, and Subsea7; the UKCS demands UKCA-marked and PED 2014/68/EU compliant gate valves, ball valves, and choke valves with NACE MR0175 sour service compliance for Clair Ridge, Elgin-Franklin, and Shetland Gas Plant service, plus subsea ball valves and ROV-operable gate valves for deepwater installations.

Offshore Oil & GasSubsea EngineeringEPC & EPCI ContractorsMarine ServicesDecommissioning

Critical Valve Requirements

Wet chlorine gas — PVDF or PTFE-lined body, titanium disc; absolutely no iron, nickel-chromium alloys (attacked by wet Cl₂); no copper; FKM or PTFE packing only
Dry chlorine gas (< 20 ppm moisture) — carbon steel is surprisingly acceptable for dry Cl₂; however most plants keep SS316 or titanium as standard
Hydrochloric acid (all concentrations) — Hastelloy C-276 or titanium; SS316 only for dilute (<5%) cold HCl; NEVER use carbon steel
Caustic soda (NaOH) — SS316L acceptable for <70% NaOH; avoid aluminium (catastrophic SCC in NaOH); EPDM diaphragm valves preferred for slurry-free NaOH
Hydrogen gas from electrolysis — ATEX Zone 1; all electrical components on actuated valves must be Ex-certified
Brine (saturated NaCl) — titanium or rubber-lined butterfly; SS316 not reliable above 60°C in concentrated chloride

Why Aberdeen's Offshore Oil & Gas Sector Needs Chlor-Alkali Plants Valves

Aberdeen is the UK's oil capital and the operational hub for North Sea UKCS (UK Continental Shelf) production — home to over 1,000 energy companies including Shell, TotalEnergies, Harbour Energy, Wood Group, Petrofac, and Subsea7; the UKCS demands UKCA-marked and PED 2014/68/EU compliant gate valves, ball valves, and choke valves with NACE MR0175 sour service compliance for Clair Ridge, Elgin-Franklin, and Shetland Gas Plant service, plus subsea ball valves and ROV-operable gate valves for deepwater installations. Key facilities in the Aberdeen area — including TotalEnergies Elgin-Franklin platform supply chain, Shell UK Shetland gas plant, Harbour Energy Aberdeen — rely on PVDF-Lined Butterfly Valve for their offshore oil & gas operations. Vajra Industrial Solutions supplies PVDF-Lined Butterfly Valve, Hastelloy C-276 Ball Valve, SS316L Diaphragm Valve, Titanium Ball Valve for chlor-alkali plants projects across Scotland, with full ASME B16.34 and ISO 9001:2015 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 Aberdeen

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

Also serving: TotalEnergies Elgin-Franklin platform supply chain, Shell UK Shetland gas plant, Harbour Energy Aberdeen, BP ETAP and Andrew Area, Wood Group (John Wood Group) Aberdeen HQ

FAQ — Chlor-Alkali Plants Valves in Aberdeen

Do you supply chlor-alkali plants valves in Aberdeen?
Yes. Vajra Industrial Solutions supplies PVDF-Lined Butterfly Valve, Hastelloy C-276 Ball Valve, SS316L Diaphragm Valve, Titanium Ball Valve for chlor-alkali plants applications in Aberdeen, Scotland. Aberdeen is the UK's oil capital and the operational hub for North Sea UKCS (UK Continental Shelf) production — home to over 1,000 energy companies including Shell, TotalEnergies, Harbour Energy, Wood Group, Petrofac, and Subsea7; the UKCS demands UKCA-marked and PED 2014/68/EU compliant gate valves, ball valves, and choke valves with NACE MR0175 sour service compliance for Clair Ridge, Elgin-Franklin, and Shetland Gas Plant service, plus subsea ball valves and ROV-operable gate valves for deepwater installations. We offer export documentation and delivery to Aberdeen in 7–14 business days with full documentation and third-party inspection.
What certifications are required for chlor-alkali plants valves in Aberdeen?
For chlor-alkali plants in Aberdeen, the applicable standards are: ASME B16.34, ISO 9001:2015, API 609 (Butterfly), EN 12756 (Valve Stuffing Boxes), ATEX / IECEx (Chlorine Zone 1), Chlorine Institute Pamphlet 6. 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 chlor-alkali plants valves to Aberdeen?
Standard stock sizes: export documentation and delivery to Aberdeen 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.
Can I use SS316 valves for chlorine service in a chlor-alkali plant?
No — wet chlorine gas (Cl₂ with moisture) attacks austenitic stainless steel, including SS316. The chromium oxide passive layer that protects SS316 is destroyed by Cl₂ + HCl attack, causing rapid pitting and stress corrosion cracking. For wet chlorine, specify PVDF-lined butterfly valves (PN 10) or titanium ball valves. Dry chlorine (confirmed < 20 ppm moisture) can use carbon steel, but most plants maintain PVDF or titanium as a standard to eliminate moisture moisture monitoring from the maintenance programme.
What valve material handles both chlorine and caustic service?
Titanium Grade 2 is the rare material that resists both wet chlorine gas and dilute caustic soda — making it the preferred choice for brine and cell liquor service where both Cl₂ and NaOH are present. However, titanium is expensive and not suited for concentrated hot NaOH (>70%, above 80°C — risk of titanium stress corrosion cracking in very hot concentrated alkali). For pure caustic service, SS316L diaphragm valves are more economical.

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Chlor-Alkali Plants Valves — Aberdeen

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Standards

ASME B16.34
ISO 9001:2015
API 609 (Butterfly)
EN 12756 (Valve Stuffing Boxes)
ATEX / IECEx (Chlorine Zone 1)
Chlorine Institute Pamphlet 6

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