Anti-theft gate valve is based on the heating system on the unit is not paid in time and theft often occur on the oil losses caused by the incident and discuss the successful design of the valve products. The valve has a good anti-theft performance (three insurance), switch easily, the sealing effect is stable, with long life and other characteristics. Anti-theft gate valve has the following advantages: 1, the flow resistance is small. The valve body inside the media channel is straight through, the medium into a straight line flow, flow resistance. 2, more effort when opening and closing. Is compared with the shut-off valve, because either open or closed, gate direction of motion perpendicular to the media flow direction. Height, opening and closing time long. Gate opening and closing stroke larger, drop is carried out by the screw. 3, water hammer phenomenon is not easy to produce. The reason is a long time off. 4, the medium can flow in any direction on both sides, easy to install. Gate valve on both sides of the channel is symmetrical. 5, the length of the structure (the distance between the shell connecting the two end faces) smaller. 6, sealing surface easy to wear, affecting the service life. When opening and closing, the two sealing surfaces of the gate and the valve seat frictionally slide with each other, which easily causes abrasion and abrasion under the action of medium pressure, affects the sealing performance and shortens the service life. 7, the price is more expensive. More contact sealing surface, processing more complex, especially the sealing surface of the gate seat is not easy to process, but more parts. 8, the shape is simple, the structure of short length, manufacturing technology is good, a wide range of applications. 9, Compact structure, good valve rigidity, smooth passage, small flow resistance, stainless steel and hard alloy sealing surface, long service life, PTFE packing, reliable sealing, light and flexible operation. The shortcomings of the anti-theft gate valve are as follows: between the sealing surface easily lead to erosion and abrasion, maintenance more difficult. Large size, open the need for a certain space, open and close a long time. The structure is more complex. Zhakuang types, according to the sealing surface configuration can be divided into wedge gate valve and parallel gate valve, wedge gate valve can be divided into: single gate type, double gate type and elastic gate type; parallel gate valve Can be divided into single gate and double gate type. According to the thread position of the stem division, can be divided into Ming rod valve and dark rod gate valve two. Structural features: For a long time the general gate valve used in the market is widespread leakage or rust phenomenon, the introduction of the European high-tech rubber and valve manufacturing technology produced by the seat block valve seat to overcome the poor general valve seal, rust and other defects , The elastic seat sealing gate valve uses the compensation function of elastic deformation of the elastic gate plate to achieve a good sealing effect. The valve has the advantages of light and reliable switch, good sealing, good elasticity memory, and service life. It can be widely used as regulating and intercepting device on the body pipelines such as tap water, sewage, construction, petroleum, chemical, food, medicine, textile, electricity, shipbuilding, metallurgy and energy system. Gate valve features: Light weight: The body made of advanced ball black cast iron, the weight of traditional gate valve to reduce the weight of about 20% to 30%, easy installation and maintenance. Flat-type brake: the traditional gate valve is often washed by the water after the tube is due to foreign objects such as stones, wood, cement, iron filings, debris and other siltation in the valve groove, likely to cause close can not close the formation of water leakage, Elastic seat gate valve at the bottom with the same flat with the hose design, not easy to cause debris siltation, the fluid flow unimpeded. Overall encapsulation: The gate adopts high-quality rubber for overall and outsourced rubber. The first-class rubber vulcanization technology in the country enables the vulcanized gate to ensure accurate geometrical dimensions, and the rubber and ductile gate then firmly and easily fall off Elastic memory good. Casting body: the valve body using precision casting, precise geometry allows the valve body without any finishing to ensure that the valve seal.