Segmented Ball Valve

Segmented ball valve designed for throttling or on/off application in various applications including juice, starch, syrup, water and oil.

Segmented ball valve is one type of ball valves, its closure is a half ball with V type port which has sharp edges. during operation the valve, friction action will be occurred between its closures that producing a strong shearing force to the medium, and a fan-shaped area will be formed between V type port of the ball and the port of seat ring, so the section are of flow port can be changed, and the medium can be precisely regulated. it is a kind of regulating valve with angel rotation, having same sealing performance as common ball valves, so it simultaneously has both functions of regulating and on-off . Incorporating with pneumatic or electric actuators, it can be widely used in the automatic control systems in different industries.

Segmented ball valve features a characterized ball segment for high rangeability with splined stem connection for precise control, maintenance friendly segment-stem assembly, low friction shaft and thrust bearings for longer life, integral actuator mounting pads, and interchangeable seats.

segmented ball valve MAIN FEATURES

1. Lost-wax precision casting.
2. Fire safe design approved.
3. Built-in ISO 5211 direct mounting pad for easy automation.
4. Anti-static devices for ball-stem-body.
5. Blow-out proof stem.
6. pressure balance hold in ball slot.
7. TA-LUFT design approved

segmented ball valve PRODUCT FEATURES

INTEGRATED VALVE BODY

SEGMENT BALL

Characterized V port segment ball offers range-ability in 250:1, ideal for throttling applications in high consistency
Syrup services. The segment is carefully designed for optimum flow, hard coated spherical surface prevents galling.

self-lubricated bearing

The segment ball is fastened by adopting double bearings on upper and lower valve stems with good stability, so the contact surface with stem is bigger which have a high carrying capacity and low friction coefficient, that operating torque of valve is reduced.

METAL AND SOFT SEALING SEAT

Seat rings can be metal seats or PTFE soft seats depending on different working medium, sealing face of metal seats will be overlaid with hard alloy, while ball surface is hardened with hard chromium plated or spraying overlay, plasma nitriding and etc, so as to increase working life of sealing faces and improve temperature resistance. PTFE or RPTFE seats have excellent sealing performance, high corrosion resistance and wide applications.

ECONOMICAL PRACTICALITY

Light body weight, small stem torque, so it can be installed with smaller pneumatic or electric actuators, high cost-effective compared to same size or class of other kinds of regulating valves.

SMALL FLOW CONTROL

According to customer requirements on flow, different small CV valves can be provided to the segment ball valve with nominal diameter of 25mm, the micro flow can be accurately controlled, it is especially applicable for the control for micro flow.

segmented ball valve PARAMETER

SIZE: DN25~500
PRESSURE RATING: DIN PN16, PN25, PN40, ASME CL150, CL300, JIS10K, 20K
END CONNECTION: Flange for all sizes, Wafer for DN25~DN250
CONSTRUCTION: Integral, 2 pieces available
ACTUATED TYPE: Pneumatic Cylinder, Electric actautor, Manual Actuator
APPLICATION: Juice, Starch, Syrup, Water, Oil, Gas

segmented ball valve DESIGN STANDARD

END FLANGE: EN1092-1:2001, ASME B16.5, GB/T 9113.1-2010, JB/T 79.1-1994, HG 20592-2009
PRESSURE TEMPERATURE RATING: ISO7005-1, ASME 16.34-2003, GB/T 12224-2007
FACE TO FACE: Wafter type – Manufacturer standard, Flange type – ISA S75.04-1995, IEC/DIN 534-3-2
WORKING TEMPERATURE: Normal, Middle and High

segmented PRESSURE TEST STANDARD:

segmented ball valve FLOW CHARACTERISTICS

STRUCTURAL SKETCH OF DIFFERENT SEAT

Structural sketch for different metal seat and soft seat.