Flanged gate valve is to use flange connection valve is one of the most common kind of valve. What are the features and benefits that it? Flanged gate valve features: light weight: ontology USES advanced ball black iron ( Ductile cast iron) , compared with traditional gate valves, the weight about 20% ~ 30% reduction in weight, easy installation and maintenance. Flat type brake block: traditional gate often wash the tube in the water after the external objects such as stone, wood, cement, iron filings, sundry sedimentation on the bottom of the valve such as the slots, easy to cause cannot close tightly and form slack phenomenon, at the bottom of the seal of the elastic base seat gate valves with the same flat as the pipe design, not easy to cause debris deposition, make the flow unimpeded. The whole plastic bags: ram is made of high quality rubber, outsourcing within the whole glue, rubber vulcanization technology in Europe after the vulcanization of gate to ensure accurate geometry size, and rubber and ductile cast gate then, fall off not easily and elastic memory preferred. Jingzhu valve: the Industrial Valves body adopts precision casting, precise geometry size inside the body to ensure the valve without the need for any finish sealing. Advantages: 1, small fluid resistance, sealing surface Chong brush and erosion by the medium. 2, open and close more effort. 3 the flow direction of medium, not restricted, disturbed flow, reduce the pressure. 4, the structure of the form is simple, short length, good manufacturing technology, wide application scope. Three, the disadvantages of gate valve as follows: 1, easy cause erosion and abrasion, surface maintenance more difficult. 2, appearance size is larger, open needs certain space, open and close time is long. 3, the structure is complex. Brake wide variety, according to the sealing surface configuration can be divided into soft-sealing gate valve and hard seal gate valves, explained below soft-sealing gate valve and hard seal gate valves under their respective characteristics. Flange soft-sealing gate valve features: flat type seat after the traditional gate often wash the tube in the water because of outside such as stone, wood, cement, iron filings, clutter, such as sedimentation on the bottom of the valve the slots, easy to cause cannot close tightly and form slack phenomenon, at the bottom of the seal of the elastic base seat gate valves with the same flat as the pipe design, not easy to cause debris deposition, make the flow unimpeded. Whole package the rubber valve is made of high quality rubber for overall, outsourcing, the European - Flow of rubber vulcanization technology make the valve after vulcanization can keep accurate geometry size, and rubber and ductile iron valves, then is not easy to fall off and elasticity hui yi jia. Corrosion resistant body adopts powder epoxy resin coating, can prevent the body of the corrosion and rust, and si can be used in the sewage system three 'O' type seal due to the valve stem is three, 'O' type sealing ring seal design can reduce the friction resistance is closed, sharply reduce leakage phenomenon and can not replace the sealing ring of water construction. Body with precision casting, precision casting body precise geometry size inside the body to ensure the valve without the need for any finish sealing. Made from light weight body with senior nodular cast iron, the weight than traditional gate about 20% reduction in weight 30%, easy installation and maintenance. Help to drink the body due to the internal life non-toxic epoxy resin coating, both internal and external surfaces of the valve in rubber completely lie without water rust or corrosion phenomenon, to drink. Flange hard seal gate Industrial Valves features: hard seal gate valve open-close part is ram, ram movement direction perpendicular to the direction of flow and the valve can only be fully open and close, not to adjust and throttling. Sealing face has two gate, two of the most commonly used mode gate valve sealing surface form a wedge, the wedge Angle vary with the valve parameters, usually in the form of 50, when the medium temperature is not high for 2 ° 52 & # 39; 。 Wedge gate valve of the damper can be made into a whole body, is called a rigid disc; Can also make it generates trace of deformation of ram, in order to improve the manufacturability, make up for the sealing surface Angle in the process of our processing deviation, this damper is called elastic disc. Normally hard seal gate valve sealing it belongs to the valve body material, it is more than soft seal, wear-resistant and heat-resistant pressure seal leakage level to level 4, soft seal leakage level to level 6. Under the condition of high temperature or conditions should be chosen in the form of hard seal gate valves.
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