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Valves for Carbon Capture & Storage (CCS) — Chengdu

Chengdu is the gateway to the Sichuan Basin — China's largest and most prolific natural gas producing region, operated by PetroChina Southwest Oil & Gas Field Company and CNOOC Sichuan; Sichuan's gas fields feed China's West-East Gas Pipeline system, requiring API 6D Class 600–1500 natural gas ball valves, fully welded body pipeline ball valves, and pneumatic actuated butterfly valves for compressor station and metering station service; Vajra Industrial Solutions supplies cryogenic-rated and gas-service ball valves for Sichuan Basin pipeline projects and Chengdu-area petrochemical and chemical plants, with complete API 6D, ASME B16.34, and CNPC Q/SY standard documentation.

SS316L gate and globe valves for amine absorber CO₂ capture, Class 900 Duplex ball valves for supercritical CO₂ compression and transport, and NACE-compliant valves for CO₂ geological storage.

NACE MR0175 / ISO 15156 (sour CO₂)ASME B16.34API 6DAPI 607 (Fire-Safe)ISO 15848-1 (Fugitive Emissions)
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Carbon Capture & Storage (CCS) Valves — Available in Chengdu

Globe Valve (Amine Service)

Class 150 / 300

Lean/rich amine absorber and stripper — hot amine (MEA/MDEA) is corrosive; SS316L with Stellite trim for erosion control

Materials: A351 CF3M (SS316L cast) body; Stellite 6 seat and plug; PTFE packing  ·  Standards: API 623, BS 1873, ASME B16.34
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Ball Valve (Supercritical CO₂)

Class 600 / 900

CO₂ compressor outlet and injection well isolation — supercritical CO₂ (> 73 bar) is an excellent solvent; seals must be CO₂-compatible

Materials: A890 Duplex 2205 or SS316L; PTFE seats; special CO₂-resistant elastomers (EPDM or HNBR rated for supercritical CO₂)  ·  Standards: API 6D, API 607, ISO 15848-1
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Gate Valve (CO₂ Pipeline)

Class 300 / 600 / 900

CO₂ trunk pipeline isolation — API 6D full-bore gate valves; same specification as natural gas pipelines but with CO₂-compatible seals

Materials: A216 WCB with SS316 trim (dry CO₂); A182 F316L for wet CO₂ + H₂S service  ·  Standards: API 6D, API 600, ASME B16.34
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Check Valve (CO₂ Compressor)

Class 300 / 600

CO₂ compressor inter-stage and discharge back-flow prevention

Materials: A351 CF8M SS316; PTFE seat; SS316 spring  ·  Standards: API 594, API 6D, ASME B16.34
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Carbon Capture & Storage (CCS) Industry in Chengdu

Chengdu is the gateway to the Sichuan Basin — China's largest and most prolific natural gas producing region, operated by PetroChina Southwest Oil & Gas Field Company and CNOOC Sichuan; Sichuan's gas fields feed China's West-East Gas Pipeline system, requiring API 6D Class 600–1500 natural gas ball valves, fully welded body pipeline ball valves, and pneumatic actuated butterfly valves for compressor station and metering station service; Vajra Industrial Solutions supplies cryogenic-rated and gas-service ball valves for Sichuan Basin pipeline projects and Chengdu-area petrochemical and chemical plants, with complete API 6D, ASME B16.34, and CNPC Q/SY standard documentation.

Natural Gas & PipelinePetrochemicalElectronics & SemiconductorPower GenerationChemical Manufacturing

Critical Valve Requirements

Wet CO₂ (CO₂ + H₂O) forms carbonic acid — attacks carbon steel at ppm level; SS316L mandatory for any wet CO₂ stream
Sour CO₂ (CO₂ + H₂S) — NACE MR0175 compliance required if H₂S partial pressure exceeds 0.0003 MPa threshold
Supercritical CO₂ seal compatibility — standard NBR/EPDM can swell and extrude in supercritical CO₂; only EPDM or HNBR grades specifically rated for CO₂ service
ISO 15848-1 fugitive emissions Class B or better — CCS projects have regulatory pressure to demonstrate zero leakage
Amine service valves — methyldiethanolamine (MDEA) and monoethanolamine (MEA) attack zinc and copper alloys; SS316L or WCB/SS316 trim only
Fire-safe API 607 for all CO₂ compressor and injection valve service — CO₂ does not burn, but co-firing with H₂S is a fire hazard in sour CCS

Why Chengdu's Natural Gas & Pipeline Sector Needs Carbon Capture & Storage (CCS) Valves

Chengdu is the gateway to the Sichuan Basin — China's largest and most prolific natural gas producing region, operated by PetroChina Southwest Oil & Gas Field Company and CNOOC Sichuan; Sichuan's gas fields feed China's West-East Gas Pipeline system, requiring API 6D Class 600–1500 natural gas ball valves, fully welded body pipeline ball valves, and pneumatic actuated butterfly valves for compressor station and metering station service; Vajra Industrial Solutions supplies cryogenic-rated and gas-service ball valves for Sichuan Basin pipeline projects and Chengdu-area petrochemical and chemical plants, with complete API 6D, ASME B16.34, and CNPC Q/SY standard documentation. Key facilities in the Chengdu area — including PetroChina Southwest Oil & Gas Field Sichuan, CNOOC Sichuan natural gas operations, Chengdu Hi-Tech Industrial Development Zone — rely on Globe Valve (Amine Service) for their natural gas & pipeline operations. Vajra Industrial Solutions supplies Globe Valve (Amine Service), Ball Valve (Supercritical CO₂), Gate Valve (CO₂ Pipeline), Check Valve (CO₂ Compressor) for carbon capture & storage (ccs) projects across Sichuan, with full NACE MR0175 / ISO 15156 (sour CO₂) 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 Chengdu

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

Also serving: PetroChina Southwest Oil & Gas Field Sichuan, CNOOC Sichuan natural gas operations, Chengdu Hi-Tech Industrial Development Zone, Sichuan Basin Gas Grid (CNPC Southwest Pipeline), Sichuan Chemical Industrial Park (Luzhou)

FAQ — Carbon Capture & Storage (CCS) Valves in Chengdu

Do you supply carbon capture & storage (ccs) valves in Chengdu?
Yes. Vajra Industrial Solutions supplies Globe Valve (Amine Service), Ball Valve (Supercritical CO₂), Gate Valve (CO₂ Pipeline), Check Valve (CO₂ Compressor) for carbon capture & storage (ccs) applications in Chengdu, Sichuan. Chengdu is the gateway to the Sichuan Basin — China's largest and most prolific natural gas producing region, operated by PetroChina Southwest Oil & Gas Field Company and CNOOC Sichuan; Sichuan's gas fields feed China's West-East Gas Pipeline system, requiring API 6D Class 600–1500 natural gas ball valves, fully welded body pipeline ball valves, and pneumatic actuated butterfly valves for compressor station and metering station service; Vajra Industrial Solutions supplies cryogenic-rated and gas-service ball valves for Sichuan Basin pipeline projects and Chengdu-area petrochemical and chemical plants, with complete API 6D, ASME B16.34, and CNPC Q/SY standard documentation. We offer export documentation and delivery to Chengdu in 7–14 business days with full documentation and third-party inspection.
What certifications are required for carbon capture & storage (ccs) valves in Chengdu?
For carbon capture & storage (ccs) in Chengdu, the applicable standards are: NACE MR0175 / ISO 15156 (sour CO₂), ASME B16.34, API 6D, API 607 (Fire-Safe), ISO 15848-1 (Fugitive Emissions), API 598, ISO 21013 (CO₂ Safety). 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 carbon capture & storage (ccs) valves to Chengdu?
Standard stock sizes: export documentation and delivery to Chengdu 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 carbon steel valves be used in CO₂ service?
Dry CO₂ (water content below 50 ppm) does not corrode carbon steel — dried CO₂ from industrial sources is used in carbon steel pipelines. However, wet CO₂ (water-saturated gas or any liquid CO₂ + water) forms carbonic acid (pH ≈ 3.7 at 1 bar CO₂ partial pressure), which corrodes carbon steel rapidly (>10 mm/year in worst cases). Therefore: dry CO₂ pipeline and injection service — carbon steel A216 WCB acceptable with SS316 trim. Wet CO₂ anywhere in the process — SS316L mandatory. When in doubt, specify SS316L — the cost premium is small versus the corrosion risk.
What is the difference between CCS and carbon capture for enhanced oil recovery (CO₂-EOR)?
Carbon capture and storage (CCS) injects CO₂ into saline aquifers or depleted reservoirs for permanent geological storage. CO₂-EOR (Enhanced Oil Recovery) injects CO₂ into producing oil reservoirs to mobilise residual oil — the CO₂ is partially recycled from produced gas. Valve specifications are similar: both require Class 900–2500 forged SS316L or Duplex 2205 for injection service. CO₂-EOR streams have higher impurity (H₂S, hydrocarbons) requiring NACE MR0175. Pure CCS streams from power plant flue gas typically contain only CO₂ + traces of SO₂ and NOₓ — simpler chemistry, SS316L usually sufficient.

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Carbon Capture & Storage (CCS) Valves — Chengdu

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Standards

NACE MR0175 / ISO 15156 (sour CO₂)
ASME B16.34
API 6D
API 607 (Fire-Safe)
ISO 15848-1 (Fugitive Emissions)
API 598
ISO 21013 (CO₂ Safety)

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