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Valves for Chlor-Alkali Plants — Port Harcourt

Port Harcourt is the centre of Nigeria's oil and gas industry — Nigeria Liquefied Natural Gas (NLNG) at Bonny Island (6 LNG trains, 22 mtpa capacity) is Nigeria's flagship LNG facility, operated by Shell, TotalEnergies, Agip, and NNPC; Shell SPDC, TotalEnergies, Eni, and Chevron all operate major onshore and offshore production assets from PH, requiring API 6D ball valves, gate valves with NACE MR0175 sour service trim, and butterfly valves for produced water and gas processing systems; Vajra Industrial Solutions exports to PH-based EPC contractors and end-users with complete ISO 9001 documentation, country of origin certificates, and SON (Standards Organisation of Nigeria) compliance data sheets.

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 Port Harcourt

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 Port Harcourt

Port Harcourt is the centre of Nigeria's oil and gas industry — Nigeria Liquefied Natural Gas (NLNG) at Bonny Island (6 LNG trains, 22 mtpa capacity) is Nigeria's flagship LNG facility, operated by Shell, TotalEnergies, Agip, and NNPC; Shell SPDC, TotalEnergies, Eni, and Chevron all operate major onshore and offshore production assets from PH, requiring API 6D ball valves, gate valves with NACE MR0175 sour service trim, and butterfly valves for produced water and gas processing systems; Vajra Industrial Solutions exports to PH-based EPC contractors and end-users with complete ISO 9001 documentation, country of origin certificates, and SON (Standards Organisation of Nigeria) compliance data sheets.

Oil & Gas ProductionLNG & PetrochemicalRefinery & DownstreamOffshore & FPSOEPC Contractors

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 Port Harcourt's Oil & Gas Production Sector Needs Chlor-Alkali Plants Valves

Port Harcourt is the centre of Nigeria's oil and gas industry — Nigeria Liquefied Natural Gas (NLNG) at Bonny Island (6 LNG trains, 22 mtpa capacity) is Nigeria's flagship LNG facility, operated by Shell, TotalEnergies, Agip, and NNPC; Shell SPDC, TotalEnergies, Eni, and Chevron all operate major onshore and offshore production assets from PH, requiring API 6D ball valves, gate valves with NACE MR0175 sour service trim, and butterfly valves for produced water and gas processing systems; Vajra Industrial Solutions exports to PH-based EPC contractors and end-users with complete ISO 9001 documentation, country of origin certificates, and SON (Standards Organisation of Nigeria) compliance data sheets. Key facilities in the Port Harcourt area — including NLNG (Nigeria LNG) Bonny Island plant, Shell SPDC (Shell Petroleum Development Company) PH operations, TotalEnergies Akpo and Egina FPSO — rely on PVDF-Lined Butterfly Valve for their oil & gas production 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 Rivers State, 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 Port Harcourt

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

Also serving: NLNG (Nigeria LNG) Bonny Island plant, Shell SPDC (Shell Petroleum Development Company) PH operations, TotalEnergies Akpo and Egina FPSO, Agip/Eni Port Harcourt, Notore Chemical Industries (fertiliser)

FAQ — Chlor-Alkali Plants Valves in Port Harcourt

Do you supply chlor-alkali plants valves in Port Harcourt?
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 Port Harcourt, Rivers State. Port Harcourt is the centre of Nigeria's oil and gas industry — Nigeria Liquefied Natural Gas (NLNG) at Bonny Island (6 LNG trains, 22 mtpa capacity) is Nigeria's flagship LNG facility, operated by Shell, TotalEnergies, Agip, and NNPC; Shell SPDC, TotalEnergies, Eni, and Chevron all operate major onshore and offshore production assets from PH, requiring API 6D ball valves, gate valves with NACE MR0175 sour service trim, and butterfly valves for produced water and gas processing systems; Vajra Industrial Solutions exports to PH-based EPC contractors and end-users with complete ISO 9001 documentation, country of origin certificates, and SON (Standards Organisation of Nigeria) compliance data sheets. We offer export documentation and delivery to Port Harcourt in 7–14 business days with full documentation and third-party inspection.
What certifications are required for chlor-alkali plants valves in Port Harcourt?
For chlor-alkali plants in Port Harcourt, 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 Port Harcourt?
Standard stock sizes: export documentation and delivery to Port Harcourt 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 — Port Harcourt

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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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