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Valves for Chlor-Alkali Plants - Sohar Port

Sohar Port and Freezone is Oman's most rapidly growing industrial hub - the 4,500-hectare integrated port and industrial zone hosts OQ's Sohar Refinery (116,000 bpd crude processing, producing naphtha, diesel, kerosene, LPG, and fuel oil, requiring ASME B16.34 process valves, API 600 gate valves, and API 598-tested butterfly valves for CDU, reformer, and LPG treating units), OQ Chemicals (methanol, polypropylene, and paraxylene complex requiring ASME B16.34 Class 150-600 valves for methanol synthesis, PP polymerisation, and aromatics processing), Oman Copper (smelter and refinery requiring rubber-lined butterfly valves and SS 316 slurry valves for copper concentrate slurry and acid plant circuits), Vale Sohar Fertiliser (880,000 tonnes/year urea - requiring ASME B16.34 globe valves, gate valves, and safety relief valves for ammonia synthesis, CO2 removal, urea synthesis, and prilling circuits), and Jindal Shadeed Iron and Steel (India's Jindal Group - 3.5 million tonne/year DRI and steel mill requiring high-temperature gate valves, steam safety valves, and cooling water butterfly valves); Sohar's valve requirements follow Oman national procurement standard OPAL (Oil and Gas Producers Alliance) combined with international API, ASME, and NORSOK standards for PDO and OQ projects; Vajra Industrial Solutions supplies Sohar Port industrial zone procurement teams and EPC contractors with API 6D, ASME B16.34, and NACE MR0175-compliant industrial valve packages with full export documentation for Oman customs.

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 Sohar Port

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 Sohar Port

Sohar Port and Freezone is Oman's most rapidly growing industrial hub - the 4,500-hectare integrated port and industrial zone hosts OQ's Sohar Refinery (116,000 bpd crude processing, producing naphtha, diesel, kerosene, LPG, and fuel oil, requiring ASME B16.34 process valves, API 600 gate valves, and API 598-tested butterfly valves for CDU, reformer, and LPG treating units), OQ Chemicals (methanol, polypropylene, and paraxylene complex requiring ASME B16.34 Class 150-600 valves for methanol synthesis, PP polymerisation, and aromatics processing), Oman Copper (smelter and refinery requiring rubber-lined butterfly valves and SS 316 slurry valves for copper concentrate slurry and acid plant circuits), Vale Sohar Fertiliser (880,000 tonnes/year urea - requiring ASME B16.34 globe valves, gate valves, and safety relief valves for ammonia synthesis, CO2 removal, urea synthesis, and prilling circuits), and Jindal Shadeed Iron and Steel (India's Jindal Group - 3.5 million tonne/year DRI and steel mill requiring high-temperature gate valves, steam safety valves, and cooling water butterfly valves); Sohar's valve requirements follow Oman national procurement standard OPAL (Oil and Gas Producers Alliance) combined with international API, ASME, and NORSOK standards for PDO and OQ projects; Vajra Industrial Solutions supplies Sohar Port industrial zone procurement teams and EPC contractors with API 6D, ASME B16.34, and NACE MR0175-compliant industrial valve packages with full export documentation for Oman customs.

Oil Refining (OQ - Sohar Refinery, 116,000 bpd)Petrochemicals (OQ Chemicals - methanol, polypropylene, ammonia)Copper Smelting (Oman Copper - OQ, 325,000 tonnes/year)Fertilisers (Vale Sohar fertiliser complex - 880,000 t/yr urea)Steel (Jindal Shadeed Iron and Steel - 3.5 million tonnes/year)Offshore Fabrication & Marine (Oman Drydock nearby Duqm, Port of Sohar logistics)

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 Sohar Port's Oil Refining (OQ - Sohar Refinery, 116,000 bpd) Sector Needs Chlor-Alkali Plants Valves

Sohar Port and Freezone is Oman's most rapidly growing industrial hub - the 4,500-hectare integrated port and industrial zone hosts OQ's Sohar Refinery (116,000 bpd crude processing, producing naphtha, diesel, kerosene, LPG, and fuel oil, requiring ASME B16.34 process valves, API 600 gate valves, and API 598-tested butterfly valves for CDU, reformer, and LPG treating units), OQ Chemicals (methanol, polypropylene, and paraxylene complex requiring ASME B16.34 Class 150-600 valves for methanol synthesis, PP polymerisation, and aromatics processing), Oman Copper (smelter and refinery requiring rubber-lined butterfly valves and SS 316 slurry valves for copper concentrate slurry and acid plant circuits), Vale Sohar Fertiliser (880,000 tonnes/year urea - requiring ASME B16.34 globe valves, gate valves, and safety relief valves for ammonia synthesis, CO2 removal, urea synthesis, and prilling circuits), and Jindal Shadeed Iron and Steel (India's Jindal Group - 3.5 million tonne/year DRI and steel mill requiring high-temperature gate valves, steam safety valves, and cooling water butterfly valves); Sohar's valve requirements follow Oman national procurement standard OPAL (Oil and Gas Producers Alliance) combined with international API, ASME, and NORSOK standards for PDO and OQ projects; Vajra Industrial Solutions supplies Sohar Port industrial zone procurement teams and EPC contractors with API 6D, ASME B16.34, and NACE MR0175-compliant industrial valve packages with full export documentation for Oman customs. Key facilities in the Sohar Port area - including OQ Sohar Refinery (116,000 bpd, naphtha, diesel, LPG - integrated with Sohar Port), OQ Chemicals Methanol Plant (Sohar Port - 1,000 tonnes/day methanol), Oman Copper (OQ minority stake - Sohar copper smelter, 325,000 t/yr) - rely on PVDF-Lined Butterfly Valve for their oil refining (oq - sohar refinery, 116,000 bpd) 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 Al Batinah North Governorate, 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 Sohar Port

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

Also serving: OQ Sohar Refinery (116,000 bpd, naphtha, diesel, LPG - integrated with Sohar Port), OQ Chemicals Methanol Plant (Sohar Port - 1,000 tonnes/day methanol), Oman Copper (OQ minority stake - Sohar copper smelter, 325,000 t/yr), Vale Sohar (urea fertiliser, 880,000 t/yr - Oman-Vale partnership), Jindal Shadeed Iron and Steel (3.5 Mtpa DRI and steel, Sohar Port)

FAQ - Chlor-Alkali Plants Valves in Sohar Port

Do you supply chlor-alkali plants valves in Sohar Port?
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 Sohar Port, Al Batinah North Governorate. Sohar Port and Freezone is Oman's most rapidly growing industrial hub - the 4,500-hectare integrated port and industrial zone hosts OQ's Sohar Refinery (116,000 bpd crude processing, producing naphtha, diesel, kerosene, LPG, and fuel oil, requiring ASME B16.34 process valves, API 600 gate valves, and API 598-tested butterfly valves for CDU, reformer, and LPG treating units), OQ Chemicals (methanol, polypropylene, and paraxylene complex requiring ASME B16.34 Class 150-600 valves for methanol synthesis, PP polymerisation, and aromatics processing), Oman Copper (smelter and refinery requiring rubber-lined butterfly valves and SS 316 slurry valves for copper concentrate slurry and acid plant circuits), Vale Sohar Fertiliser (880,000 tonnes/year urea - requiring ASME B16.34 globe valves, gate valves, and safety relief valves for ammonia synthesis, CO2 removal, urea synthesis, and prilling circuits), and Jindal Shadeed Iron and Steel (India's Jindal Group - 3.5 million tonne/year DRI and steel mill requiring high-temperature gate valves, steam safety valves, and cooling water butterfly valves); Sohar's valve requirements follow Oman national procurement standard OPAL (Oil and Gas Producers Alliance) combined with international API, ASME, and NORSOK standards for PDO and OQ projects; Vajra Industrial Solutions supplies Sohar Port industrial zone procurement teams and EPC contractors with API 6D, ASME B16.34, and NACE MR0175-compliant industrial valve packages with full export documentation for Oman customs. We offer export documentation and delivery to Sohar Port in 7–14 business days with full documentation and third-party inspection.
What certifications are required for chlor-alkali plants valves in Sohar Port?
For chlor-alkali plants in Sohar Port, 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 Sohar Port?
Standard stock sizes: export documentation and delivery to Sohar Port 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 - Sohar Port

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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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