Three-way ball valves can be L-shaped or T-shaped. L-shaped three-way ball valves have one inlet and one outlet, and the third port is used as a
bypass; T-shaped three-way ball valves have two inlets and one outlet, or one inlet and two outlets. Three-way ball valves are often used in piping
systems that require flow direction changes or bypass operations, such as in chemical, oil, natural gas, and water supply systems. Multi-way ball
valves can control the flow direction of fluids in multiple pipelines, allowing multiple operations on one valve, such as distributing, mixing, or isolating fluids. Multi-way ball valves are suitable for complex piping systems that require precise control of fluid distribution, such as petroleum refining,
chemical processing, multi-product pipeline transportation, etc.
◎ Design Standard: API6D, ASME B16.34, GB/T 19672, etc.
◎ Material: Carbon steel, Stainless steel, Alloy steel.
◎ Nominal Size: 2"~24"DN50~600
◎ Nominal Pressure: CLASS150LB~2500LB PN10~PN420
◎ Applicable Temperature: -60℃~250℃
◎ Operation Mode: manual, worm, pneumatic, electric, etc.
◎ Scope of Application: Widely used in production equipment in the petroleum, chemical, pharmaceutical and other industries. In these industries, three-way and multi-way ball valves can be used for opening and closing of various pipelines or flow control in the regulating system. For example, in the petrochemical production process, three-way and multi-way ball valves can control the mixing ratio of different oil products to meet production needs. In the pharmaceutical industry, three-way and multi-way ball valves are used to accurately control the flow direction and flow of liquid medicine to ensure the quality and safety of medicines. In the textile, food and other industries, three-way and multi-way ball valves also play an important role in controlling medium flow, distributing fluids, adding materials, etc.
The working principle of the three eccentric butterfly valve is based on its unique structural design, which achieves sealing and flow control functions through three eccentric distances: Structural Design: Three Eccentric Structure: The valve stem axis deviates from the center of the butterfly plate and the body center, and the rotation axis of the valve seat is at an angle to the axis of the valve body channel. This design enables the butterfly plate to form a wedge-shaped space with the valve seat when closed, achieving sealing through friction. Conical Sealing Surface: The periphery of the butterfly plate is machined into an external inclined conical surface, and the valve seat is an internal inclined conical surface, forming an elliptical contact surface. When closed, the butterfly plate achieves sealing through the asymmetric pressing force in the up and down directions, and the sealing becomes tighter as the pressure increases. Working Mechanism: Open State: The butterfly plate is separated from the valve seat, and the fluid passes through the channel; due to the eccentric design, during the opening process, the butterfly plate gradually detaches from the valve seat, reducing friction and operating torque. Closed State: The butterfly plate rotates 90° to contact the valve seat, forming a wedge-shaped space and achieving sealing through torque. Flow Regulation: During the opening rotation of the butterfly plate, the valve's flow area gradually increases, reducing fluid resistance and improving the flow coefficient, achieving flow regulation. Technical Advantages: Sealing Performance: The metal-to-metal hard sealing method can still maintain good sealing performance in high-temperature and high-pressure environments; Low Friction Operation: The eccentric design significantly reduces the operating torque and extends the valve's lifespan; Self-Locking Function: When closed, the butterfly plate becomes tighter under pressure, preventing the phenomenon of over-positioning. This valve is widely used in the petroleum, chemical, and power industries, and common structural connection forms include double flange type, welding type, lug type, and socket type, etc.
The Power Plant Check Valve has small fluid resistance, the medium channel inside the valve body is straight through, and the flow direction of the medium does not change when it flows through the check valve. The pressure self-tightening seal is used, and the two ends of the valve are usually welded. The valve flap closes quickly, the water hammer pressure is small, the body structure is simple, the production process is good, the sealing performance is good, and the sealing surface is less eroded when fully opened. A wide range of applications.
RAYS cast steel check valves are designed and manufactured to provide maximum service life and dependability. All check valves meet the design requirements of American Petroleum Institute standard API600 & 6D.BS EN 13709 and generally conform to American Society of Mechanical Engineers standard ASME B16.34. Valves are available in a complete range of body/cover materials and trims.