Product Features
1. Functions
1)Sealing Function:It’s a core sealing part in solenoid valves of automated equipment. When the solenoid valve is turned on or off, and the valve core moves, the rubber layer stretches and changes shape. The metal part works with this movement. Together, they let the solenoid valve’s air or fluid circuits switch between sealing and conduction. It stops media (like gas or liquid—such as hydraulic oil and compressed air in automated production lines) from leaking. This makes sure the solenoid valve controls things accurately. And that makes the automated equipment work precisely. For example, in automated assembly lines, solenoid valves control cylinders. These solenoids rely on this sealing diaphragm to keep sealing well. This guarantees the cylinder pistons extend and retract precisely. Its sealing performance meets the strict standards of Pressure Seal Components and Sealing Elements for Valves in high-precision automated systems.
2)Pressure Transmission and Cushioning:It helps the solenoid valve transmit pressure and act as a cushion. When the media pressure changes, the rubber layer stretches and changes shape based on how much pressure there is. This adjusts the balance of pressure inside the solenoid valve. At the same time, it cushions the impact of pressure changes on parts like the solenoid valve core. This protects the hydraulic and pneumatic systems of the solenoid valve and automated equipment. It makes the equipment last longer. For instance, in the hydraulic control system of automated presses, the solenoid valve sealing diaphragm buffers the pressure impact of hydraulic oil. This stops the valve core from getting damaged. This function helps Sealed Diaphragm Pumps and Micro Sealed Hydraulic Pumps manage pressure better.
3)Media Isolation:It separates different media and parts inside the solenoid valve. It stops impurities in media (like hydraulic oil and compressed air) from contaminating critical parts. Such as the solenoid valve’s electromagnetic components and valve core. It also stops different media from mixing together. This makes sure the hydraulic and pneumatic systems of automated equipment stay clean and work stably. For example, in automated cleaning equipment, it stops impurities in the cleaning fluid from entering the electromagnetic part of the solenoid valve. If those impurities got in, they would affect the equipment’s control accuracy. This isolation role meets the protective requirements of Fluid-Tight Diaphragms in complex media environments.
2. Required Characteristics
1)High Sealing Performance:This is the most critical performance requirement. Under the pressure environment of solenoid valves in automated equipment (pressures differ by equipment—from low-pressure pneumatics to high-pressure hydraulics), it must seal well for a long time and stay stable. The media leakage must be extremely low. Whether the solenoid valve is opening and closing many times, or holding pressure for a long time, it should keep sealing effectively. If it doesn’t, it might cause the automated equipment to fail in control. It could also waste media, or even cause safety accidents. This sealing reliability is as good as that of Pressure Seal Components and Gasket & Membrane Assemblies in high-pressure fluid systems.
2)Media Compatibility:It must resist common media in automated equipment. Like hydraulic oil (different types of mineral oil, synthetic oil), compressed air (which may have a little moisture and oil), and various industrial liquids (water, chemical reagents). After touching these media, the rubber layer should not swell, change shape, get old, or crack. The metal part should not rust or corrode. This makes sure the sealing diaphragm’s physical and chemical properties stay stable. It can then meet the needs of long-term equipment operation. For example, in chemical automated equipment, it must resist corrosion from chemical reagents. This compatibility meets the material standards of Diaphragms & Sealing Gaskets in harsh media environments.
3)Fatigue Resistance and Wear Resistance:Solenoid valves in automated equipment work very often. Maybe several to dozens of times every minute. So the sealing diaphragm must stand high-frequency elastic deformation and friction. Like the friction from touching the solenoid valve cavity and valve core. It needs to be very resistant to fatigue. After millions or more operation cycles, the rubber layer should not develop cracks or get damaged. The metal part should not wear out. This keeps it sealing well and its structure intact. It makes sure the automated equipment works stably without stopping. For instance, in automated assembly lines where solenoid valves work at high frequencies, the sealing diaphragm needs extremely high fatigue resistance. This durability meets the service life standards of Sealing Elements for Valves in high-cycle use scenarios.
4)Dimensional Precision and Stability:It must have extremely high dimensional precision. The buckles of the metal part, the outer size of the rubber layer, and the internal installation position of the solenoid valve must match with strict tolerance. Usually, this tolerance is within a very small range—like ±0.05mm, or even more precise. Besides that, it should keep good dimensional stability under different temperature and humidity conditions. Automated equipment works in all kinds of environments. Like high temperature, low temperature, and humid places. It should not change size because of heating expansion or cooling contraction. If it did, that would affect sealing and how well it fits during installation. For example, in automated cold chain equipment, it must keep its size stable in low-temperature environments. This precision meets the manufacturing standards of Fluid-Tight Diaphragms for automated equipment.
5)Good Elasticity and Toughness:The rubber layer needs the right amount of elasticity. This lets it stretch and change shape smoothly when the solenoid valve is working. It can then seal well and adjust pressure. It should also have a certain degree of toughness. This stops it from breaking or shattering easily under pressure, friction, or impact. The metal part must also have enough strength and toughness. It works together with the rubber layer. This makes sure the sealing diaphragm’s overall performance is good. For example, in the pneumatic control system of automated robotic arms, the solenoid valve sealing diaphragm relies on elasticity to control air circuits precisely. This balance of mechanical properties meets the performance requirements of Diaphragms & Sealing Gaskets in dynamic fluid control.
