The three-piece ball valve consists of three parts, the valve cover and the intermediate valve body, the three-piece ball valve is different from the two-piece ball valve and a piece of ball valve lies in the disassembly maintenance.
The three-piece ball valve is mostly fixed by four bolts and play a good fastening effect. The slice is much higher than one or two pieces of ball valve.
| Size | d | D | C | G | f | T | N | M | C1 | L | H | W |
| 15 | 15 | 95 | 65 | 45 | 2 | 16 | 4 | 14 | 52 | 130 | 68 | 123 |
| 20 | 20 | 105 | 75 | 58 | 2 | 18 | 4 | 14 | 55.5 | 150 | 80 | 133 |
| 25 | 25 | 115 | 85 | 68 | 2 | 18 | 4 | 14 | 62.5 | 160 | 84 | 133 |
| 32 | 32 | 140 | 100 | 78 | 2 | 18 | 4 | 18 | 76.9 | 180 | 92 | 190 |
| 40 | 38 | 150 | 110 | 88 | 3 | 18 | 4 | 18 | 86 | 200 | 98 | 190 |
| 50 | 50 | 165 | 125 | 102 | 3 | 20 | 4 | 18 | 107 | 230 | 103 | 190 |
| 65 | 65 | 180 | 145 | 122 | 3 | 18 | 4 | 18 | 134 | 290 | 143 | 264 |
| 80 | 80 | 200 | 160 | 138 | 3 | 20 | 8 | 18 | 155 | 310 | 154 | 264 |
| 100 | 100 | 220 | 180 | 158 | 3 | 20 | 8 | 18 | 192 | 350 | 183 | 503 |
The body material of the 3 pcs flanged ball valve is WCB & Stainless Steel. The body material of 2 pcs flanged ball valve is Gray Iron, Ductile Iron, Cast Steel, Stainless Steel.
The pressure 2pc & 3pc flanged ball valve is Class 150/300/600/900, PN10/16/25/40/63,5K/10K/16K.
Stardard: ANSI CLASS 125/150, DIN 3202 PN10/16,JIS 5K,10K
Face to face: MSS-SP-85, DIN 3202 F1
Connection flange type: Flange end
Three-piece flanged ball valve pressure resistance is much higher than two-piece type, which is more convenient for disassembly and maintenance; there is no difference in the pipeline connection
Generally, the warranty period is one year.
There is no friction when opening and closing. This function completely solves the problem of traditional valves affecting the sealing due to mutual friction between the sealing surfaces.
Top loading structure. The valves installed on the pipeline can be directly inspected and repaired online which can effectively reduce device shutdown and reduce costs.
Single valve seat design. It eliminates the safety problem due to abnormal pressure increase in the valve cavity.
Low torque design. The valve stem with a special structure design can be opened and closed easily with only a small handle.
When you invest in the 3 Piece Flanged Ball Valve from Ningjin Thriveon, you’re choosing a valve designed for operability and service-friendliness. The three-piece construction means that the center body containing the ball, seats and stem can be removed from the piping system while the flanged end caps remain bolted, greatly simplifying access for inspection, seat replacement or ball cleaning. This feature significantly reduces downtime compared with monolithic or two-piece valves. For procurement professionals and maintenance planners, this translates into lower life-cycle costs and less disruption to your operations. Additionally, because the flange ends allow standard bolt-on connection, installation and removal are straightforward, reducing labor and enabling faster turnaround. The high-quality sealing materials and precision machining of the valve components mean fewer unplanned service events—and when service is required, it's faster and more predictable. With Ningjin Thriveon’s support and our decade of engineering experience, you gain access not just to the valve itself but to the expertise to specify the right size, material, and connection scheme for your system. Ultimately, the 3 Piece Flanged Ball Valve provides you with maintenance efficiency, operational stability and peace of mind—the kind of performance that delivers both technical and commercial advantage.
A 3 Piece Flanged Ball Valve is engineered for high-performance fluid control across diverse industrial settings, from petrochemical systems to water treatment facilities. Unlike traditional one-piece or two-piece valves, the three-piece design allows for easy disassembly, cleaning, and reassembly without disconnecting the pipeline. This modular structure is particularly valued in industries requiring regular maintenance or contamination prevention. At Ningjin Thriveon Valve Co., Ltd., our 3 Piece Flanged Ball Valve combines precision engineering with durable materials such as stainless steel or carbon steel. The flanged ends simplify secure pipeline connections and ensure leak-free operation under high pressure or temperature variations. For engineers, this valve provides both functionality and reliability — enabling operators to perform on-site maintenance while maintaining process integrity. Another key advantage lies in its tight sealing mechanism. The precision-machined ball and resilient seats reduce torque and ensure smooth operation, minimizing wear over time. The flanged design offers versatility for integration in multiple piping standards like ANSI or DIN, making it an ideal choice for global applications. Procurement managers appreciate the cost efficiency that comes with reduced downtime and extended service life. For systems handling aggressive media or high-cycle operations, our valve guarantees consistent performance with minimal leakage risk. The result is improved operational reliability, lower maintenance cost, and enhanced worker safety. As a trusted supplier, Ningjin Thriveon Valve Co., Ltd. focuses on providing technical solutions rather than generic products. Our expert team tailors each 3 Piece Flanged Ball Valve to meet your specific operational parameters, ensuring precision control and long-term durability in every flow system.
In chemical processing environments, where reliability and corrosion resistance are critical, a 3 Piece Flanged Ball Valve provides unmatched safety and control. Designed for complex pipeline networks, this valve ensures full bore flow, minimizing pressure drop and allowing efficient transfer of aggressive fluids. At Ningjin Thriveon Valve Co., Ltd., our 3 Piece Flanged Ball Valve is crafted from high-grade materials resistant to chemical attack — ideal for applications involving acids, solvents, or high-viscosity fluids. The three-piece configuration offers a key advantage: it allows for quick cleaning and maintenance without complete line shutdown, ensuring continuous productivity and reduced downtime. Each valve’s flanged connection guarantees strong sealing integrity under high pressure, while the precision-engineered ball design provides smooth rotation even in heavy-duty cycles. Operators can easily replace internal components without dismantling the entire system, saving time and reducing waste. In chemical industries, safety standards are stringent. Our valve incorporates anti-blowout stems, reinforced seats, and fire-safe design options, making it suitable for high-risk environments. Its corrosion-resistant coating and polished surface prevent material buildup and contamination, extending lifespan while ensuring compliance with international standards. By selecting Ningjin Thriveon Valve Co., Ltd., buyers gain more than a component — they receive a reliable solution built for performance and safety. The 3 Piece Flanged Ball Valve is engineered for precision control, effortless maintenance, and long-term cost savings, protecting both people and processes in demanding chemical plants.
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+86-311-86935302
+86-311-86935302
Email Us:
info@thriveonvalve.com
South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China 
