ball valve seat materials ball valve seat materials
metal seat butterfly valve
Figure Number Abbreviation

- AT-RLW Concentric Rubber Lined Butterfly Valves - WAFER Type
- AT-RLS Concentric Rubber Lined Butterfly Valves - SEMI-LUG Type
- AT-RLL Concentric Rubber Lined Butterfly Valves - LUG Type
- AT-RLF Concentric Rubber Lined Butterfly Valves - FLANGE Type

Standard Compliance
Cephas Valve Rubber Lined Butterfly valves conform to ISO 5752, MSS SP67, JIS B 2032, JIS B 2064, API 609, BS5155, in general.
Production Range
SIZE Working Pressure Working Temperature
DN 50 to DN 4000 (2 inch ~ 160 inch) Up to 16bar -20 ~ +160

ball valve seat materials is a valve which can be used for isolating or regulating flow. The closing mechanism takes the form of a disk. Operation is similar to that of a ball valve, which allows for quick shut off. ball valve seat materials are generally favored because they are lower in cost to other valve designs as well as being lighter in weight, meaning less support is required. The disc is positioned in the center of the pipe, passing through the disc is a rod connected to an actuator on the outside of the valve. Rotating the actuator turns the disc either parallel or perpendicular to the flow. Unlike a ball valve, the disc is always present within the flow, therefore a pressure drop is always induced in the flow, regardless of valve position.

ball valve seat materials is from a family of valves called quarter-turn valves. The "butterfly" is a metal disc mounted on a rod. When the valve is closed, the disc is turned so that it completely blocks off the passageway. When the valve is fully open, the disc is rotated a quarter turn so that it allows an almost unrestricted passage of the fluid. The valve may also be opened incrementally to throttle flow.
There are different kinds of ball valve seat materials, each adapted for different pressures and different usage. The resilient butterfly valve, which uses the flexibility of rubber, has the lowest pressure rating. The high performance ball valve seat materials, used in slightly higher-pressure systems, features a slight offset in the way the disc is positioned, which increases the valve's sealing ability and decreases its tendency to wear. The valve best suited for high-pressure systems is the triple offset ball valve seat materials, which makes use of a metal seat and is therefore able to withstand a greater amount of pressure.