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3 PIECE BALL VALVE

3 PIECE BALL VALVE

Structural Features

• The valve body is composed of three forged steel pieces bolted together.

• The valve core, seat, and seals are all housed in the middle valve body section.

• Common connection methods: threaded (NPT/BSP), welded, quick-connect.

• Generally small diameter: mainly DN6~DN100.

• Mostly floating ball structure, reliable sealing, and compact size.

Product Description

Working Principle

• The ball rotates 90° with the valve stem to achieve full open/full close.

• The floating ball automatically adheres to the valve seat under medium pressure, achieving a seal.

• Disassembly is simple: just loosen the bolts on both sides to remove the core assembly entirely; no pipe disassembly is required.

 

Main Advantages

1. Extremely Convenient Disassembly and Maintenance
No need to cut pipes or move the valve; simply replace the core assembly. Suitable for cleanroom, food, and chemical applications with frequent maintenance.

2. Excellent Sealing and Low Flow Resistance
Full-bore design, large flow rate, and virtually no pressure loss.

3. Good Pressure and Temperature Resistance
Forged steel material, pressure resistance up to PN16/PN40/Class 300, more reliable than ordinary cast iron valves.

4. Wide Range of Applications
Can be made with soft or hard seals, suitable for water, oil, gas, weak acids and alkalis, solvents, etc.

5. Compact Size and Moderate Cost
Small installation space, high cost-effectiveness.

 

Applicable Operating Conditions

• Chemical, water treatment, fine chemical, pharmaceutical, food industries

• Instrumentation, small-diameter pipelines, skid-mounted equipment

• Piping requiring frequent cleaning, maintenance, and seal replacement

 

Common Materials

• Valve body: 304 / 316L stainless steel

• Ball/stem: 304 / 316

• Seal: PTFE, reinforced PTFE

• Operating temperature: -20℃~200℃

Online Inquiry

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Three-Way Ball Valve

Three-Way Ball Valve

Structural Features

• Valve body is a three-way structure with L- or T-shaped ports.

• The ball has an L-shaped or T-shaped channel.

• Mostly a floating ball structure; some large-diameter models are fixed ball.

• Common connections: threaded, flanged, welded, quick-connect.

• Actuation methods: manual, pneumatic, electric.

Pneumatic Floating Ball Valve

Pneumatic Floating Ball Valve

Structural Features

• The ball has no lower support shaft; it is held only by the valve seats at both ends, allowing for slight floating under medium pressure.

• The valve stem is top-mounted, connecting to the ball, and is only responsible for rotation, not bearing axial pressure.

• Double-sided sealing: When closed, the ball is pushed towards the outlet valve seat by the medium pressure, forming a self-tightening seal.

• Simple structure: The valve body, ball, valve seat, valve stem, and stuffing box have few components, making maintenance convenient.

Working Principle

• Opening: Rotate the valve stem 90°, aligning the ball's through-hole with the pipeline, allowing smooth media flow.

• Closing: Rotate the valve stem 90° in the opposite direction, aligning the ball's through-hole perpendicular to the flow path; media pressure pushes the ball tightly against the outlet valve seat, with a tighter seal at higher pressures.

Fixed Ball Valve

Fixed Ball Valve

Structural Features

• The valve core is a fixed shaft structure, positioned by bearings/sleeves at the top and bottom.

• The valve core itself does not move back and forth; sealing is achieved by the valve seat pressing against the valve core.

• It is a bidirectional sealing structure.

• Common connections: flange connection, welded connection.

3 PIECE BALL VALVE

3 PIECE BALL VALVE

Structural Features

• The valve body is composed of three forged steel pieces bolted together.

• The valve core, seat, and seals are all housed in the middle valve body section.

• Common connection methods: threaded (NPT/BSP), welded, quick-connect.

• Generally small diameter: mainly DN6~DN100.

• Mostly floating ball structure, reliable sealing, and compact size.

+86 19858780995

+86 19858780995

+86 19858780995

+86 19858780995

19858780995@163.com