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Manual wedge gate valve
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Nuclear grade cast steel wedge gate valve
2025-09-30
Nuclear grade cast steel wedge gate valve is used to cut off or connect the medium flow in the pipeline of large pressurized water reactor nuclear power plant systems under required operating conditions. Allow the medium to flow when the valve is opened; When the valve is closed, it should be ensured to be cut off. The valve can only be in the fully open or fully closed position. The prototype has passed comprehensive identification tests such as cold and hot life, cold and hot alternation, cold and hot cycle, fluid blockage, vibration aging, earthquake, and end loading, and can meet various functional requirements under operating conditions.
Technical Parameters
sealed structureElastic single gate (C-type), wedge double gate (K-type)
Design SpecificationsRCC-M、ASME、GB、NB
main materialCarbon steel, stainless steel, alloy steel, duplex steel
Sealing surface materialCobalt based alloys (STL), cobalt free alloys
structural formMiddle flange bolt
connection typeDocking welding, flange connection
Drive TypeManual, electric, pneumatic
Nuclear safety levelNuclear grade 1, 2, 3, non nuclear grade
caliberDN65-750
pressure ratingClass 150、300、400、600、800、900、1500； PN16、20、25、40、64、100、160、250