Pipeline ValvesSolutions
API 6D Certified Pipeline Valve Manufacturer for Oil & Gas Transmission
You need pipeline valves that hold under pressure, perform over decades, and ship with full documentation. Gowin manufactures API 6D certified ball valves, gate valves, check valves, and DBB valves — engineered specifically for oil and gas transmission pipelines, compressor stations, and metering systems worldwide.
Complete Range of API 6D Pipeline Valves
From mainline isolation to emergency shutdown, every pipeline node demands a specific valve. Gowin's full product range is engineered to API 6D, available in multiple pressure classes, sizes, and actuation configurations.
API 6D Pipeline Ball Valves
Trunnion mounted and floating designs for full-bore, bi-directional sealing in high-pressure oil and gas pipelines. Full bore keeps pressure drop minimal over long-distance transmission. Anti-static and fire-safe construction standard.
- Blow-out proof stem + anti-static device — API 607 compliant
- Top-entry & side-entry for in-line maintenance without removal
- Gas-over-oil, pneumatic, electric actuated versions available
API 6D · API 600 Pipeline Gate Valves
Slab gate valves for through-conduit, piggable pipeline service. Full through-conduit design allows complete pigging without removing the valve — keeping your maintenance schedule on track without shutting down operations.
- Through-conduit slab gate — full-bore pigging without valve removal
- Pressure-energized seats for long-term tight shutoff
- Suitable for above-ground, buried, and offshore installations
API 6D Pipeline Plug Valves
Lubricated and non-lubricated plug valves for reliable on/off isolation in oil and gas pipelines. Quarter-turn operation with a tapered or cylindrical plug provides tight shutoff across a wide range of pressures and temperatures.
- Quarter-turn operation for fast, positive shutoff
- Lubricated design extends service life in abrasive media
- Compact body — low face-to-face dimensions for tight installations
API 6D Pipeline Check Valves
Swing check valves that protect your pipeline and compressor equipment from damaging backflow. Non-slam design prevents water hammer in high-velocity gas lines. Self Close by Back Pressure — no external power or operator intervention needed.
- Non-slam swing disc — prevents water hammer in gas pipelines
- Top-entry construction allows in-line inspection without removal
- Self Close by Back Pressure — no external power or actuation required
DBB DBB Valves
Double block and bleed valves deliver dual isolation in a single compact body — replacing two separate valves for instrument connections, pressure tapping points, and chemical injection lines. Verified zero-pressure cavity before every maintenance job.
- Two independent seats — upstream and downstream isolated simultaneously
- Integrated bleed port confirms zero-pressure before any work begins
- One body replaces two valves, halving leak points and installation cost
Our pipeline valve range covers every node of your transmission system — from mainline block stations to compressor outlets. All API 6D certified, full OEM/ODM customization available for bore size, material, pressure class, and actuation. Send your project bill of materials and we'll respond within 24 hours.
Browse All Products Request a QuoteWhy Choose Gowin as Your
Pipeline Valve Manufacturer
Every pipeline valve supplier will tell you their products are reliable. Here is what sets Gowin apart — in certifications, testing capability, documentation, and engineering support.
API 6D & Fire-Safe Certified
Your EPC contractor or end-user operator requires API certification — not a declaration, a monogram. Gowin holds the API 6D monogram. Every pipeline valve is also fire-safe certified to API 607 and API 6FA, so your procurement documentation is complete from day one of ordering.
- API 6D monogram for pipeline ball, gate, check, plug valves
- API 607 & API 6FA fire-safe certification across product range
- ISO 9001, ISO 14001, OHSAS 45001 quality management
- TS — China Special Equipment Production License
ISO17025 In-house Lab
Shell testing, seat leakage, anti-static, torque, and low-temperature tests are all conducted in Gowin's own ISO17025-accredited lab — not outsourced. Every valve ships with traceable test reports tied to individual serial numbers. You don't wait for third-party lab schedules to delay your delivery.
- Hydrostatic body & seat leakage testing per API 598 / API 6D
- Anti-static device testing for gas pipeline compliance
- Torque testing for actuator sizing verification
- Low-temperature testing down to -196°C for cryogenic service
Third-Party Inspection & Full Documentation
Gowin fully supports TPI by SGS, Bureau Veritas, Lloyd's Register, Intertek, and any client-nominated agency. Witnessed testing is arranged at the factory. Standard documentation meets the requirements of major oil & gas operators and global EPC contractors.
- Material Test Reports (MTR) with full chemical & mechanical traceability
- Hydrostatic & pneumatic test certificates per API 6D / API 598
- Dimensional inspection reports & compliance certificates
- NDE reports (RT, UT, MT, PT) as required by project specification
Custom Engineering Support
Non-standard bore sizes, duplex and super duplex materials, NACE sour service, ATEX actuation, extended bonnets — Gowin's engineering team handles project-specific requirements that standard catalog products cannot meet. When your project has specs beyond catalog items, you need a real manufacturer.
- F51 duplex, F53 super duplex for corrosive & sour service pipelines
- NACE MR0175 / ISO 15156 compliant materials for H₂S service
- Custom actuator packages: fail-safe, SIL-rated, gas-over-oil
- 24-hour engineering response for project specifications
Pipeline Valve Solutions for Every
Transmission Application
Oil and gas transmission pipelines are not all the same. Isolation requirements at a block station differ from what a compressor station or metering skid demands. Gowin supplies the right valve for each node in your pipeline system.
Isolation
Full-bore trunnion ball valves and slab gate valves are the standard choice for mainline block valve stations. Full-bore design ensures unrestricted pigging, while bi-directional sealing maintains integrity under fluctuating pressures across long-distance natural gas and oil pipelines.
Transmission
Natural gas transmission pipelines demand valves with anti-static devices, fire-safe construction, and full-bore flow paths to minimize pressure drop over hundreds of kilometers. Gowin's industrial gas valves are tested to API 6D and fire-safe certified to API 607, giving you compliance confidence from day one.
Stations
Suction and discharge valves at compressor stations face rapid cycling, high differential pressure, and vibration. Gowin supplies pneumatic and gas-over-oil actuated pipeline ball valves configured for fast-action operation — ensuring your compressor station keeps gas moving without unplanned shutdowns.
Block Stations
Large-bore trunnion ball valves and heavy-duty DBB valves are the standard for critical pipeline isolation. The true full-bore design ensures unrestricted passage for intelligent pigs, while the integrated double block and bleed capability allows operators to safely verify zero-leakage isolation without interrupting the primary mainline flow.
Shutdown
Trunnion ball valves are the industry-standard choice for pipeline emergency shutdown applications. Their quarter-turn operation delivers rapid, positive closure, while fire-safe construction to API 607 and API 6FA ensures the seat and stem seals remain effective even under fire conditions. Gowin's actuated trunnion ball valves are configurable with spring-return fail-safe pneumatic or gas-over-oil actuators for reliable on-demand closure — independently of instrument air or electrical supply.
Pipelines
Offshore and subsea pipeline valves face seawater corrosion, high differential pressure, and extreme remote conditions. Gowin supplies duplex F51 and super duplex F53 pipeline valves with NACE MR0175 compliant materials and full corrosion protection packages for demanding offshore service.
See Gowin's Pipeline Valvesin Action
From raw material to finished API 6D certified pipeline valve — every step of Gowin's manufacturing process is engineered for reliability. Watch how our pipeline ball valves and gate valves are produced, tested, and prepared for global delivery.
How to Select the Right
Pipeline Valve
Not sure which valve fits your pipeline? Compare valve types in the table below, or use the interactive selector to get a matched product recommendation in seconds.
| Valve Type | Primary Function | Best Application | Pressure Class | Standard |
|---|---|---|---|---|
| Ball Valve | On/off isolation | High-pressure mainline block, fail-safe shutdown, DBB | 150–2500 | API 6D |
| Slab Gate Valve | On/off isolation | Piggable pipelines, buried service | 150–2500 | API 6D / API 600 |
| Check Valve | Backflow prevention | Compressor outlet, pump protection | 150–1500 | API 6D |
| Butterfly Valve | On/off / throttling | Large-diameter, lower-pressure lines | 150–600 | API 609 |
| Actuated Ball Valve | Fail-safe shutdown | Fire-safe shutdown, SIS-integrated safety applications | 150–2500 | API 607 · 6FA |
| DBB Valve | Double isolation | Instrument isolation, injection lines | 150–2500 | API 6D / API 608 |
② Pressure class? Class 600+ typically requires trunnion-mounted design with pressure-energized seats.
③ Automated shutdown? Specify actuated trunnion ball valve with fail-safe actuator + API 607 fire-safe certification.
Not sure which valve fits your pipeline? Answer 3 questions below and get an instant product match — including a direct link to the right Gowin valve for your application.
2Pressure Class
3Operating Medium
Pipeline Valve Specifications
at a Glance
Use the table to quickly check whether Gowin's pipeline valves match your project requirements. For parameters outside these ranges or special configurations, contact our engineering team directly.
| Parameter | Range / Standard |
|---|---|
| Design Standard | API 6D, ASME B16.34 |
| Fire-Safe Standard | API 607, API 6FA |
| Quality Standard | ISO 9001, ISO 14001 |
| Size Range | NPS 2" – 56" (DN50 – DN1400) |
| Pressure Class | Class 150 – 2500 (ASME) |
| Temperature Range | -196°C to +450°C |
| Body Materials | WCB, LCB, LCC, WC6, WC9, CF8, CF8M, F316, F51 Duplex, F53 Super Duplex |
| Special Materials | Inconel, Monel, Hastelloy (on request) |
| Sour Service | NACE MR0175 / ISO 15156 |
| End Connections | Flanged RF / RTJ, Butt Weld (BW), Socket Weld |
| Actuation | Manual, Pneumatic, Electric, Gas-over-Oil |
| Testing Standard | API 598, API 6D, API 607, API 6FA |
| Lead Time — Standard | 4–6 weeks (NPS 2"–16", Class 150–600) |
| Lead Time — Custom | 8–14 weeks (large bore / high pressure / special material) |
Actuation & Configuration
Options for Pipeline Valves
The right valve body is only half the solution. How your valve operates — and how fast it responds — is equally critical in pipeline service. Gowin supplies fully configured valve-actuator assemblies, factory-tested before shipment.
For infrequently operated mainline block valves. Gear operators are standard for NPS 6" and above, reducing the torque required to safely operate large-diameter, high-pressure valves without powered actuation.
Spring-return or double-acting pneumatic actuators for fast-cycle or remote-operated pipeline valves. Ideal for compressor station inlet/outlet valves and automated block valve stations where response time is critical.
For remote-controlled pipeline valves where compressed air is unavailable. Available with modulating control, position feedback, and ATEX/IECEx certification for hazardous area installations along the pipeline route.
Uses pipeline gas pressure to power a hydraulic actuator — no external power or instrument air required. Delivers high torque output for large-bore Class 900–2500 valves at remote pipeline locations far from any power source.
Frequently Asked Questions
Pipeline Valves
Can't Find Your Answer?
Our engineering team responds to all technical enquiries within 24 hours. Send your pipeline specification and we'll recommend the right valve type, material, and configuration.
Ask Our EngineersQuote requests: 24–48 hours
TPI coordination: upon order confirmation
It depends on your function and pipeline conditions. Trunnion ball valves are the standard for high-pressure mainline isolation and fail-safe shutdown applications. Slab gate valves are preferred where pigging is required. Check valves prevent backflow at compressor outlets. DBB valves provide double isolation with bleed for instrument and injection connections. Send us your operating pressure, temperature, media, and pipeline size — we will recommend the right valve within 24 hours.
For oil and gas transmission pipelines, API 6D certified valves are the required standard. This covers trunnion ball valves, slab gate valves, swing check valves, and plug valves. All must meet API 6D design, testing, and documentation requirements. Gowin holds the API 6D monogram — every pipeline valve we supply is fully compliant.
Yes. Gowin's pipeline valves are designed and manufactured to API 6D (pipeline valves), API 607 and API 6FA (fire-safe), and ASME B16.34 (pressure-temperature ratings). Our quality management system is certified to ISO 9001. All valves are pressure-tested to API 598 before shipment, with full test reports provided.
Yes. Gowin fully supports TPI by SGS, Bureau Veritas, Lloyd's Register, Intertek, and any client-nominated agency. Standard documentation includes material test reports (MTR), hydrostatic and pneumatic test certificates, dimensional inspection reports, and compliance certificates. Witnessed testing is arranged at our factory.
Pressure class is determined by your maximum allowable operating pressure (MAOP) and temperature. Most long-distance transmission pipelines operate between Class 600 and Class 1500. Size is determined by your pipeline bore and required flow capacity. Provide your MAOP, operating temperature, and flow rate — our team can confirm the correct pressure class and nominal bore within 24 hours.
Standard materials include WCB (carbon steel) and CF8M (stainless steel) for general service. For corrosive media or sour gas (H₂S) service, we offer LCB, LCC (low-temperature), WC6, WC9 (alloy steel), F316/316L, F51 (duplex stainless), and F53 (super duplex). NACE MR0175 / ISO 15156 compliant materials are available for sour service pipelines.
Yes. All Gowin pipeline ball valves, gate valves, and butterfly valves can be supplied with pneumatic, electric, or gas-over-oil hydraulic actuators. Actuator sizing, fail-safe direction, and control accessories (limit switches, solenoid valves, positioners) are configured to your project specification. Fully assembled and factory-tested valve-actuator packages are available.
Ball valves are best for high-pressure on/off isolation and fail-safe shutdown applications — their quarter-turn operation delivers fast, positive closure making them the preferred choice for fire-safe and actuated pipeline applications. Gate valves are preferred for piggable pipelines and buried service. Check valves are self-actuating and used wherever backflow must be prevented. Butterfly valves suit large-diameter, lower-pressure lines where compact installation matters. Use the selector tool on this page, or contact our team with your pipeline specification.
Standard pipeline valves (NPS 2"–16", Class 150–600, WCB or CF8M) typically ship within 4–6 weeks. Large-bore valves (NPS 20" and above), high-pressure classes (Class 900–2500), special materials, or actuated assemblies require 8–14 weeks depending on scope. Contact us with your full bill of materials for a confirmed lead time.
Yes. Gowin provides pre-order engineering consultation to help finalize valve selection and specification. Installation and operation manuals (IOM) are supplied with every order. Our technical team is available for on-site support and troubleshooting after delivery. Spare parts — including seats, stems, seals, and actuator components — are stocked for all standard pipeline valve models.
Ready to Source Pipeline Valvesfor Your Project?
Tell us your pipeline specifications — operating pressure, temperature, media, size, and required standards. Our engineering team will respond within 24 hours with valve recommendations, a preliminary quote, and available documentation.
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