This is a washer non-return valve. It’s used for water pump outlets and pipeline systems in pump-valve systems. It’s a critical sealing part. It falls under the category of Diaphragms & Sealing Gaskets and Fluid-Tight Diaphragms for water control applications.It’s made specifically to work with Sealed Fluid Transfer Pumps and pipeline sealing systems. It has an irregular polygonal shape. This shape fits the specific cavity structure of water pump outlets and pipeline systems. It makes sure the diaphragm coordinates tightly with surrounding components after installation.The diaphragm has mounting holes. These holes let it be fixed firmly to the corresponding positions of the water pump outlet or pipeline. You can use screws or other fasteners to fix it. This stops the diaphragm from moving when hit by water flow. So it keeps a stable water-stop function.There’s a prominent raised structure in the middle of the diaphragm. This design helps it seal better when water pressure changes. When forward water flow passes through, the raised part can change shape a little. This lets water flow smoothly. When water tries to flow backward, the raised part fits the valve seat tightly under water pressure. It blocks backflow effectively. Its structural design meets the precision requirements of Pressure Seal Components and Gasket & Membrane Assemblies in water supply systems.
Product Features
1. Functions
1)Preventing Water Backflow:Its core function is to block water in the pipeline. It stops water from flowing back to the water pump or upstream pipeline when the pump stops working. For example, in municipal water supply systems, when the water pump pauses, the water-stop diaphragm stops water in the pipe network from flowing back. This avoids water hammer effects. It also protects the water pump and pipeline system from damage. This backflow prevention role helps Sealing Elements for Valves and Mini Sealed Valve play their safety functions better in water systems.
2)Maintaining System Pressure:It helps keep the pressure in the pipeline system stable. When the pump is working, the washer non-return valve stops unnecessary pressure loss. After the pump stops, it stops the pressure from dropping quickly. This makes sure the pipeline system can start working normally again fast when restarted. This pressure maintenance capability helps Sealed Fluid Direction Control Valve and Micro Sealed Hydraulic Pump (used in precision water pressure control) work more efficiently.
3)Protecting Equipment:It stops water backflow from hitting and wearing components. Like water pump impellers and valves. This makes the water pump and other related equipment last longer. It also reduces the cost of maintaining and replacing equipment. This protective effect meets the durability requirements of Sealed Diaphragm Pump supporting components.
2. Required Characteristics
1)High Elasticity and Flexibility:The diaphragm is under frequent water pressure. So it must have good elasticity and flexibility. During long-term use, it goes through countless deformations. It needs to bounce back to its original shape quickly. This avoids fatigue damage. It also keeps the water-stop performance effective. This mechanical property is like the elastic requirements of Diaphragms & Sealing Gaskets in dynamic water-sealing scenarios.
2)Superior Sealing Performance:It must seal well with the valve seat. Within a certain water pressure range, it must stop water leakage completely. This is a key characteristic for effective water stopping. Even a little leakage may make the system pressure unstable. It could also affect the normal operation of equipment. This sealing reliability meets the strict leak-proof standards of Pressure Seal Components and Fluid-Tight Diaphragms in water systems.
3)Corrosion Resistance:The water that pumps move may have various chemical components. Like disinfectants and minerals. So the material of the washer non-return valve must be very resistant to corrosion. Common materials used are corrosion-resistant rubbers. Like EPDM rubber and fluoroelastomer. These materials stop the diaphragm from being eroded by substances in water. This makes sure the diaphragm lasts long and works well. This resistance meets the material standards of Sealing Elements for Valves in environments where they touch water.
4)Sufficient Mechanical Strength:It must stand water pressure and impact. Even under continuous high-pressure water flow, it won’t crack or tear. This makes sure it keeps stable water-stop performance under all kinds of complex working conditions. This structural strength meets the durability requirements of Gasket & Membrane Assemblies in high-pressure water systems.
