Elastic seat seal gate valve, the main sealing element is a rubber covered integral gate plate, which generates a small amount of adaptive elastic deformation under the action of operating force and water pressure, and forms a sealing effect with the precision casting valve seat.

◆ Ductile iron investment casting shell

The valve body and bonnet are made of ductile iron with high strength and corrosion resistance. The valve seat and valve body are integrally precision cast, without any machining.

◆ Full diameter flat bottom runner

When the valve is fully opened, the gate is separated from the flow passage, and there is no groove at the bottom of the valve seat, so it is not easy to accumulate debris. It is the same as the straight pipe, and the flow resistance is low.

◆ All rubber coated rams

The frame is completely wrapped by rubber, and the cast iron is isolated from the medium without corrosion. The rubber soft seal is firmly and precisely bonded with the framework, and the overall hot vulcanization is formed.

◆ Integral copper nut

The ram nut is connected with the framework as a whole, and there is no empty stroke and looseness. Bronze material, self-lubricating with the valve stem, effectively reducing the operating torque.

◆ Ram guide rail system

There is a guide rail system between the valve body and the ram. When the ram is sealed, the bearing water pressure will not shift, and the rubber will not contact and wear when lifting, so as to prevent the valve rod from bending.

◆ Stainless steel valve rod

Stainless steel corrosion-resistant valve rod, trapezoidal thread rolling processing, smooth and wear-resistant screw teeth, effectively reduce operating torque, and improve service life.

◆ Double thrust bearing (non rising stem type DN≤300)

The valve stem neck is equipped with double thrust bearing, and the inverted valve stem can avoid being washed out by water pressure. Bronze material, self-lubricating with the valve stem, effectively reducing the operating torque.

◆ Axial seal of valve rod (non rising stem type)

Three O-rings, axial self sealing under water pressure, no trouble of packing adjustment. The top dust ring prevents external impurities from entering the shaft seal.

◆ Back sealing structure (non rising stem type DN≤300)

The patented back sealing structure allows the valve to replace the O-ring at the gland in case of emergency without water and at any angle opening.

◆ Middle flange connection

The high-strength socket head cap screw, hot melt adhesive and valve cover rubber ring are closed to isolate the screw from the working medium and the external environment.

◆ Double feet and lifting rings

For gate valves of all specifications, the valve body is integrally cast with two legs, and the valve cover is integrally cast with two rings for easy handling and storage.

◆ Non toxic anti-corrosion coating

The inner and outer surfaces of the valve are coated with non-toxic epoxy resin powder electrostatic coating, which has a long service life of anti-corrosion and can be directly used in the domestic drinking water, food and medicine industries.

◆ Multiple types of operation

The structure includes concealed rod type and exposed rod type. Hand wheel, T-handle, electric, pneumatic and other devices can be used for operation. Field indication of valve position, valve position signal output, password lock control, extended operating rod, direct buried device, etc. are available for selection.

◆ Convenient installation and construction

With flange, clamp groove, socket, spigot, mechanical joint, PE joint and other connection methods, the expansion function is optional, and it is convenient to connect with cast iron, steel, plastic and other pipes.