Key Performance Features

The three-piece flanged design provides installation flexibility. Flange dimensions and face-to-face length can be customized so the valve can connect directly to the customer pipeline without field modifications, reducing installation cost.

Inside the body, every wetted component—including the ball, seat, body lining, flange lining and stem—is designed and assembled to keep the metal shell isolated from the process medium. This protects the body from corrosion, erosion and abrasion. Precision-ground ceramic ball and seat surfaces achieve ANSI Class VI shutoff. Structural ceramic hardness and low surface roughness reduce friction and operating torque. The actuator bracket conforms to ISO 5211, and quarter-turn electric or pneumatic actuators can be mounted through interchangeable brackets selected for the actuator interface. Because ceramic ball valves require less torque than soft- or metal-seated valves of the same size, contact our team for proper actuator sizing.

Excessive actuator output torque can damage the ceramic valve ball.

Corrosion Resistance

High-purity zirconia ceramic (ZrO₂), formed by cold isostatic pressing and high-temperature sintering, is chemically stable against most organic solvents and inorganic process media, except concentrated sulfuric acid and hydrofluoric acid. It does not contaminate the process and maintains its physical and chemical properties during long-term service in strong acids, strong alkalis and highly corrosive slurries.

Sealing and Flow Characteristics

The ceramic ball and seat form a precision-ground spherical seal with a surface roughness of Ra 0.1–0.4. High ceramic hardness and self-lubricating behavior support zero leakage (Class VI) while keeping operating torque well below comparable metal- or soft-seated ball valves, preventing torque-related ball damage.

The ball and seat mate without clearance, preventing solids from lodging between the sealing surfaces and causing sticking. O-port and V-port ball options are available. The O-port ball is primarily used for isolation; the V-port ball provides equal-percentage control for applications that require accurate, stable flow regulation. Its V-port can also shear particles and fibers and self-clean the sealing surfaces. Where control accuracy is less demanding, the O-port ball can also be used for throttling.

Abrasion Resistance

Zirconia structural ceramic has a hardness of approximately HRA 85, well above stainless steel and hard alloys. The high hardness and strength of the ceramic trim give fully lined ceramic ball valves excellent abrasion and erosion resistance in pneumatic powder conveying and slurries containing hard solids.

Fully lined ceramic hard-seated ball valves have demonstrated reliable performance in severe, high-abrasion and high-erosion lines across steel, metallurgy, petrochemical processing, mineral processing, thermal power, pulp and paper, and polysilicon operations.

Valve Size	Cvmax.
	O-Port	V-Port
1/2″	15	8
3/4″	34	18
1″	45	18
11/4″	63	35
11/2″	114	87
2″	227	122
21/2″	316	175
3″	482	240
4″	810	406
5″	1140	485
6″	1900	610
8″	2350
10″	3870
12″	5200