| Availability: | |
|---|---|
| Quantity: | |
API608 3PC Trunnion Mounted Ball Valve
Design Features
Three-piece structure: The valve body is divided into three parts, facilitating installation, maintenance and replacement of internal components and reducing downtime.
Trunnion-mounted ball design: The ball is fixed by trunnions, reducing the operating torque and improving the stability of the valve under high-pressure conditions.
Bi-directional sealing: It provides bi-directional sealing function to ensure reliable sealing of the medium in both forward and reverse directions.
Fireproof design: It complies with the API 607 and API 6FA fireproof testing standards and is suitable for flammable and explosive environments.
Anti-static design: It complies with the anti-static requirements of API 608 to ensure safety when used in flammable environments.
Multiple sealing materials: It offers a variety of sealing material options, such as PTFE, RPTFE, PEEK, etc., to adapt to different media and temperature conditions.
Low leakage design: It is equipped with a sealant injection system, which can inject sealant when the seals are damaged to ensure the tightness of the valve.
Blowout-proof stem design: The stem is designed with a blowout-proof structure to ensure safety under high-pressure working conditions.
Technical Specifications
Size range: 1/2" ~ 56" (DN15~DN1400)
Pressure rating: 150LB ~ 2500LB (PN20~PN420)
Standard temperature: -29°C ~ 220°C
Low temperature: -46°C ~ -196°C
High temperature: Over 220°C
Valve body materials: WCB, A217 WC6, CF8M, etc.
Seat materials: PTFE, RPTFE, PEEK, metal-to-metal, etc.
Connection methods: RF, RTJ, BW, etc., conforming to ASME B16.5 and ASME B16.47 standards.
Operation modes: Manual, gear operation, electric operation, pneumatic operation, etc.
Application Fields
Petroleum and natural gas industry: Used in long-distance pipelines, oil and gas field exploitation and transportation systems.
Chemical industry: For handling corrosive liquids and high-temperature and high-pressure media.
Oil refineries: Used for fluid control in the refining process.
Water treatment and power generation: Used for the control of water and steam systems.
Low-temperature applications: Such as liquefied natural gas (LNG) systems.
Underground and subsea applications: Suitable for underground pipelines and shallow water, deep water environments.
Manufacturing and Testing
Manufacturing process: Adopting forging, casting, welding and heat treatment processes to ensure the high strength and durability of the valve.
Non-destructive testing: Including ultrasonic testing (UT), radiographic testing (RT), magnetic particle testing (MT) and liquid penetrant testing (PT).
Pressure testing: The shell test pressure is 1.5 times the rated pressure, and the seat test pressure is 1.1 times the rated pressure to ensure zero leakage.
Fireproof testing: Complying with the API 607 and API 6FA fireproof testing standards.
Anti-static testing: Ensuring electrical continuity with a resistance not exceeding 10 ohms.
Certification and Compliance
API 608 certification: Complying with the API 608 standard to ensure product quality and performance.
Other certifications: Including ISO 9001, CE certification, NACE MR0175, etc.
Advantages
High-performance sealing: Providing 100% leak-free operation.
Low operating torque: The trunnion design reduces the operating torque, facilitating manual or gear operation.
Customization service: Offering multiple material options, operation modes and special coatings.
Global compliance: Complying with international standards and being suitable for the global market.
Easy maintenance: The three-piece structural design facilitates quick maintenance and component replacement.
Competitive Advantage
On Samples Buyer bear the air fee, but this fee will be reduced from order directly
On After Sales Free replacement if there is any quality problem
On Delivery Never delay delivery time
On Materials Ensure material pure
Ensure material pure
How to choose a forged or cast valve body: API 600 vs API 602 size limits, casting quality factor, NDT coverage, weld repair policy and cost crossovers.
How pressure seal bonnet valves work, why bolted bonnets stop at Class 900, seal ring materials, disassembly rules and the low-pressure leak signature.
A lift check valve closes in millimetres, not degrees. Disc lift, cracking pressure, chatter, and why steam and compressor duty punish a badly sized one.
Category A and Category B butterfly valves differ at the seat, not the body. What each one seals with, where each leaks, and what to put on the datasheet.
Butterfly vs gate valve compared by loss coefficient, pumping energy cost, weight, torque and leakage class, with selection rules and datasheet data.
How solid, flexible and split wedges differ in sealing, thermal binding and misalignment tolerance, plus selection rules and RFQ data.
The backseat, the gland and the blowout-proof stem decide whether a gate valve leaks at the stem, and whether it can be repacked with the line still live.
A fire-safe valve must still isolate after its soft seat has burned away. What API 607 and ISO 10497 test, and what the certificate does not cover.
How to size pneumatic valve actuators: valve torque, safety factors, spring-return vs double-acting, air pressure, stroking time and fail-safe position.
What the sleeve actually seals againstA sleeve type plug valve has three parts in the sealing path: a metal plug with a through port, a moulded sleeve of PTFE or PFA that wraps the plug and carries its own matching port, and a metal body liner behind the sleeve. Nothing is injected and nothing is gr
Bronze, 90/10 cupronickel, duplex, super duplex and Monel in seawater: what pits, what erodes, and how to write the material call-out.
Why check valves slam, what the Joukowsky surge really depends on, and how to select swing, dual plate and spring-loaded checks by flow deceleration.
Y-type, basket and duplex strainers sized by open area ratio: mesh openings in micron, clean and dirty pressure drop, and why baskets fail on steam.
Wafer, lug and double flanged butterfly valves compared: bolting, dead-end service, removal, gasket faces and where each body style fails.
Triple offset butterfly valves seal metal to metal with zero rubbing travel. Compare offsets, torque curves and seat materials for high temperature duty.
Learn about 5A gate valve material properties, pressure-retaining design, corrosion resistance and industrial applications. Explore J-VALVES solutions for demanding valve service requirements.
API 609 stops at NPS 60, AWWA C504 at 72 in. What really governs a DN2000 butterfly valve: offsets, shaft deflection, velocity and six failure chains.
Bellows seal globe valves fail at year two, not year ten. Three limits: cycle budget, fouled convolutions, load path. ISO 15848-1 classes included.
Discover how centerline wafer butterfly valves work, including disc design, seat sealing, flange installation and industrial applications. Explore J-VALVES valve solutions for water and general process systems.
Explore DBB reduced-bore ball valve design, sealing logic, oil and gas applications, and checks for materials, end connections, ratings, and test records.