On 2018-08-08 14:48:54
knife gate valves of thirteen features
Type knife gate valve has the advantages of simple and compact structure, reasonable design, lightweight materials, sealing is reliable, flexible and convenient operation, small volume, smooth channel, small flow resistance, light weight, easy to install, easy to remove, etc, thoroughly solved the common gate valve, flat gate valve, globe valve, regulating valve, butterfly valve, ball valve, valve, such as the weight of the big, big flow resistance, the area is large, difficult problems, such as installation, can replace the cut-off valve and control valve, can in the work pressure 1.0 MPa to 2.5 MPa, in the case of temperature - 29-550 ℃ to work normally. The knife gate valve has shear function, which can scrape the adhesive on the sealing surface and automatically remove sundries. The stainless steel gate can prevent the seal leakage caused by corrosion.
Type knife gate valve is suitable for mining coal in power plants, slag discharge, urban sewage treatment, food, paper making, medicine, petroleum, chemical industry such as oil, water, steam pipe road, connected or truncated slurry pipeline, gold mineral powder, sand, slag, coal slurry, pulp, wood pulp, tailings, fibers, dust, chemical sewage, sedimentation tank, asphalt, the export of silo, fruits, cereals, abattoir wastewater, etc.
1. The sealing surface of the lifting gate can be scraped to remove the adhesive things on the sealing surface and automatically remove debris.
2. Stainless steel gate plate can prevent seal leakage caused by corrosion, and fine grinding and polishing treatment can obtain better seal effect. The bottom of the knife plate is processed into a blade shape, which has the function of cutting off soft materials such as fiber, pulp and wood pulp, and has a good opening and closing function. A hard PTFE mud scraper is installed on the upper end of the knife plate to prevent dust, gravel and other abrasions into the packing box, which can significantly improve the life of the knife plate.
3. The stainless steel body is firm and durable, the reinforcing rib design of the body improves the strength of the body, and the double-headed screw is used to open and close more quickly.
4. The whole stainless steel material can prevent corrosion and damage. The valve body and packing culm are all made of precision casting, in which the valve body is cast as a whole with flange, and the material can be 304, 316, 316L, WCB, 2Crl3 according to the user's needs. The sealing ring is made of PTFE reinforced PTFE, which is corrosion-resistant, wear-resistant and non-slag.
5. The full round DC channel is designed with no slag and no blocking.
6. Scientific upper sealing stuffing box design makes the upper sealing safe, effective and durable.
7. Short structure length can save raw materials, installation space, and effectively support pipe strength.
8. Triangular support saves raw materials and ensures required mechanical properties.
9. Guide blocks on the knife gate valve body to ensure proper movement of the gate plate. The extrusion block ensures the effective seal of the gate.
10. Knife gate valve can also be optional driving mechanism.
11. V-gate can be used as regulating valve.
12. Compact design, small space, light weight, cheap price, easy to install, wear-resisting and anti-blocking measures, easy to maintain, easy to use and long life, and optional drive device.
13. The valve plate has five support points, so that the valve plate has a good alignment. Plate does not offset when valve is closed and subjected to back pressure.