This is a 3-port piston body for fluid control equipment in pump-valve systems, a core component of Precision Piston Assemblies and Multi-Port Piston Units designed for multi-channel fluid management. It works in tandem with Sealed Fluid Direction Control Valves and Sealed Fluid Transfer Pumps to ensure accurate fluid distribution, featuring an overall disc shape with irregular notches on the edge—these notches facilitate installation positioning and adaptation to other components. The piston body is equipped with three distinct holes arranged in a regular pattern; each hole has a spire-like raised structure, with a needle-shaped handle on top of the protrusion to enable better insertion into corresponding interfaces or pipelines. Made of rubber, it has a smooth surface without obvious textures or decorations, which helps reduce fluid resistance during flow and prevents impurity adhesion. Its structural design aligns with the functional requirements of Pistons and Hydraulic Piston Components in high-precision fluid control systems.
Product Features
1. Functions
1)Fluid Distribution and Control: In fluid control systems, the three holes correspond to different fluid channels, respectively, used for precise distribution and control of the flow direction and flow rate of different fluids. For example, in equipment requiring mixing of multiple chemical reagents in specific proportions, each hole can connect to the supply pipeline of a different reagent; through the movement of the piston, the channels are opened or closed to achieve quantitative delivery and mixing of reagents. This control function complements the multi-channel regulation capabilities of Sealed Diaphragm Pumps and Micro Sealed Hydraulic Pumps.
2)Pressure Balancing: It may also play a role in pressure balancing. During fluid flow, by adjusting the opening and closing states of the three holes, the internal pressure of the system is balanced, preventing damage to equipment caused by excessively high or low pressure and ensuring stable operation of the fluid system. This pressure management role supports the safe operation of Mini Sealed Valves and other pressure-sensitive components.
3)Sealing and Isolation: When certain fluid channels are not in use, the piston body can provide sealing and isolation to prevent cross-flow or leakage between different fluids, ensuring the independence and safety of each fluid channel. This sealing performance meets the strict standards of Hydraulic Piston Components and Sealed Fluid Direction Control Valves in multi-fluid systems.
2. Required Characteristics
1)Excellent Sealing Performance: To prevent fluid leakage, the piston body must have good sealing performance with the corresponding pipelines or interfaces. This requires the material itself to have a certain degree of elasticity, and ensures tight fitting between the holes and connectors in terms of processing precision. This sealing standard is consistent with the leak-proof requirements of Precision Piston Assemblies and Sealing Elements for Valves (relevant to piston systems).
2)Corrosion Resistance: Since it may come into contact with various fluids of different properties, including some corrosive chemical liquids, it needs to have strong corrosion resistance. This property complies with the material durability standards of Multi-Port Piston Units in harsh chemical environments.
3)Wear Resistance: During frequent piston movements, friction occurs between the piston body and related components; therefore, it needs to have good wear resistance to ensure its service life and operational reliability. This wear resistance aligns with the durability requirements of Reciprocating Pistons in high-cycle use scenarios.
4)Dimensional Stability: It must maintain dimensional stability under any temperature or pressure environment, avoiding dimensional deformation caused by thermal expansion/contraction or pressure changes, which would otherwise affect the precision of fluid control. This stability meets the manufacturing standards of Hydraulic Piston Components for high-precision fluid control equipment.
