Big Size EPDM Resilient Seat Gate Valve AWWA Standard

The gate plate of a resilient-seated gate valve typically employs an integral encapsulation process. The rubber sealing face is capable of compensating for minor imperfections on the sealing interface via elastic deformation, thereby achieving zero leakage. Meanwhile, a triple-layered O-ring seal is fitted around the valve stem, providing highly effective protection against medium leakage.

1. The big size gate valve has ultra large flow capacity, extremely low pressure loss

The large-diameter design is suitable for large flow transmission needs such as main pipelines and pump stations. When fully open, the gate completely separates from the flow channel, and the flow channel is straight through. The fluid resistance coefficient is extremely low, far lower than that of butterfly valves and globe valves of the same caliber, which can effectively reduce the energy consumption of pump stations and reduce long-term operating costs.Not easy to accumulate debris: The bottom adopts a flat bottom design, similar to the pipeline, which is not easy to cause debris accumulation and allows the liquid to flow smoothly, especially suitable for fluid media containing impurities.

2. Corrosion resistant and wear-resistant, with a long service life

The valve body is mostly made of ductile iron material, with epoxy resin powder sprayed on the inner and outer surfaces, which is acid and alkali resistant, corrosion-resistant, and suitable for buried or humid harsh environments; The valve stem is made of stainless steel material and sealed with multiple O-rings to prevent rusting and jamming of the valve stem; The rubber sealing layer adopts wear-resistant ethylene propylene diene monomer (EPDM) or nitrile rubber (NBR), which has excellent anti-aging performance and extends the overall service life of the valve.

3. Easy to operate, compatible with remote control

Large caliber specifications can be equipped with electric and pneumatic actuators to achieve remote automation control and meet the regulation needs of smart pipeline networks; After optimizing the valve stem sealing structure, the friction resistance is reduced, and manual operation is more convenient. It also supports replacing the valve stem sealing ring under pressure without stopping the pump or water supply, which does not affect the continuous operation of the system.

Standard export wooden case packaging

The resilient-seated gate valve is a widely utilized for water supply and drainage, sewage treatment, HVAC systems, and light industrial fluid handling systems.