There are three types of valve cover designs for forged steel gate valves. The * type is a bolt type valve cover. Valves designed according to this design form have valve bodies and valve covers connected by bolts and nuts, and wound gaskets (made of 316 flexible graphite) sealed. When customers have special requirements, metal ring connections can also be used. The second design form is a welded valve cover. Valves designed according to this design form have valve bodies and valve covers connected by threads, When customers have special requirements for fully welded sealing, penetration welding connection can also be used. The third type is a self sealing valve cover. Valves designed according to this design form have a threaded connection between the valve body and the valve cover, and an internal pressure self sealing ring seal.
Item NO.:
XUVAL88-346Lead Time:
50 DaysProduct Orgin:
CHINABrand:
XUVALShipping Port:
ShanghaiPayment:
100%TTStructural holding points of Z41H forged steel flange gate valve:
1. Forged steel valves are suitable for medium high temperature and medium high pressure valves with nominal pressures of PN2.5, 4.0, 10.0, 14.0, 25.0Mpa, and nominal diameters of DN15~100mm. Applicable media include water, nitrogen hydrogen mixed gas, urea, and methylamine solution.
2. The valve stem and valve stem nut are driven by trapezoidal threads, and the threads comply with the provisions of GB5796. The valve stem head is designed with a conical upper sealing surface, which tightly matches the upper sealing seat of the valve cover when the valve is fully open, without any leakage.
3. The pressure bearing parts such as the valve body and valve cover are forged as a whole (tire model forging), and the valve body flange can also be welded. The connection forms of valves include flange connection, socket welding connection, and internal thread connection.
4. The connection between the valve seat and the valve body includes threaded connection, welding, and directly processing the alloy layer or stainless steel valve on the valve body. The thickness of the weld overlay is greater than or equal to 2mm.
5. For forged steel valves with a nominal pressure greater than 15.0Mpa, a pressure self tightening sealing structure is adopted, and the packing box and gate plate are both integrally forged to ensure compressive strength.
6. Forged steel valves are suitable for medium high temperature and medium high pressure valves with nominal pressures of PN2.5, 4.0, 10.0, 14.0, 25.0Mpa, and nominal diameters of DN10-50mm. Applicable media include water, nitrogen hydrogen mixed gas, urea, and methylamine solution.
7. The valve stem and valve stem nut are driven by trapezoidal threads, and the threads comply with the provisions of GB5796. The valve stem head is designed with a conical upper sealing surface, which tightly matches the upper sealing seat of the valve cover when the valve is fully open, without any leakage.
8. Pressure bearing components such as valve bodies and covers can be forged as a whole (tire model forging), and valve body flanges can also be welded. The connection forms of valves include flange connection, socket welding connection, and internal thread connection.
9. The connection between the valve seat and the valve body includes threaded connection, welding, and the addition of an alloy layer or stainless steel valve directly onto the valve body Made through work. The thickness of the weld overlay is greater than or equal to 2mm.
10. For forged steel valves with a nominal pressure greater than 15.0Mpa, a pressure self tightening sealing structure is adopted, and the packing box and gate plate are both integrally forged to ensure compressive strength.
Z41H Design and Manufacturing Standards:
1. Design and Manufacturing: ANSIB16.34 API600 API602
2. Flange size: ANSIB16.5
3. Pressure and temperature: ANSIB1.20.1
4. Structural length: ANSIB16.10
5. Welding connection size: ANSIB16.11If you are interested in our valves and want to know more details,please leave a message here,we will reply you as soon as we can.
Categories
Copyright © 2024 Tonglu Yongxin Valve Co.,Ltd.All Rights Reserved. Powered by dyyseo.com
IPv6 network supported