Flange ASTM Gate Valve is suitable for ANSI Class150 ~ 900, PN2.0 ~ 16.0mpa, JIS10 ~ 20K, working temperature -29 ~ 425℃ (carbon steel) and -40 ~ 500℃ (stainless steel) of the name of the pipeline, used to cut off or put through the medium in the pipeline. Through the selection of different materials, can be applied to water, steam, oil, nitric acid, acetic acid, strong oxidizing medium and urea and other media. Manual, bevel gear drive and electric, etc.
Features and Advantages:
1. The bearing parts of the valve are cast by precision casting process, and the surface quality handwheel is cast by malleable cast iron. The shape is matched with the handle, and the friction force is increased appropriately, which is convenient to open. And shows a clear "open", "off" signs.
2.Stem nut adopts high nickel ductile iron, "T" thread with stem to transfer torque.
3. The valve cover is equipped with oil cup, can regularly add solid lubricating oil, keep easy to open and close.
4. Packing gland and pressure sleeve separate design, to ensure the concentricity of the stem. Reasonable packing box design, to ensure no leakage valve, meet environmental requirements.
5.Bonnet with upper sealing ring, meet American Petroleum Institute API standards.
6.The middle flange connecting bolt of valve adopts double head bolt, which is convenient for maintenance and disassembly.
7.The stem head is forged as a whole and connected with the disc through a "T" groove to ensure strength.
8.The castings below DN250 are precision castings, and each batch of castings is marked with furnace number for easy tracking.
