3D Low temperature carbon steel gate valve is reliable, closed tightly and the pressure is reduced. The design covers a wide range of requirements to meet any customer needs from general to harsh service conditions.
3D Low temperature carbon steel gate valve meets the requirements of the latest edition of API600 and ASME B16.34.
Size: NPs 2 "~ 66" (DN50 ~ dn1650)
Pressure rating: ASME class150 ~ 2500 (PN16 ~ pn420)
Valve body material: carbon steel, stainless steel, alloy steel, duplex stainless steel
End connection: RF, BW, RTJ
Operation: manual, pneumatic, electric, hydraulic.
Low temperature gate valves have the following advantages
The fluid resistance is small, and the sealing surface is less brushed and eroded by the medium.
Opening and closing is labor-saving.
The flow direction of the medium is unrestricted, without disturbing the flow and reducing the pressure.
The utility model has the advantages of simple shape, short structural length, good manufacturability and wide application range.
The disadvantages of low temperature gate valve are as follows:
It is easy to cause erosion and scratch between sealing surfaces, which is difficult to maintain.
The overall dimension is large, which requires a certain space for opening and closing, and the opening and closing time is long.
The structure is complex.
The types of gate width can be divided into wedge gate valve and parallel gate valve according to the configuration of sealing surface. Wedge gate valve can be divided into single gate pole type, double gate plate type and elastic gate type; Parallel gate valves can be divided into single gate plate and double gate plate. According to the thread position of the valve stem, it can be divided into rising stem gate valve and Non rising stem gate valve.
The installation and maintenance of low temperature gate valve shall pay attention to the following matters:
The hand wheel, handle and transmission mechanism are not allowed to be used for lifting, and collision is strictly prohibited.
Double gate valves shall be installed vertically (i.e. the valve stem is in the vertical position and the handwheel is at the top).
The gate valve with bypass valve shall open the bypass valve before opening (to balance the pressure difference at the inlet and outlet and reduce the opening force).
The gate valve with transmission mechanism shall be installed according to the provisions of the product operation manual.
If the valve is often opened and closed, lubricate it at least once a month.
Structural features:
For a long time, the common gate valves used in the market generally have the phenomenon of water leakage or rust. The elastic seat seal gate valve produced by our enterprise by introducing European high-tech rubber and valve manufacturing technology overcomes the defects of poor sealing and rust of common gate valves. The elastic seat seal gate valve uses the compensation effect of slight elastic deformation of elastic gate to achieve good sealing effect, The valve has the advantages of light switching, reliable sealing, good elastic memory and service life. It can be widely used as regulating and intercepting devices on the pipelines of tap water, sewage, construction, petroleum, chemical industry, food, medicine, light textile, electric power, shipping, metallurgy, energy system, etc.
