Product reference standards:
Design and Manufacturing: GB12234
Structural length: GB12221
Pressure and temperature rating: GB9131 GB/T74 HG20604
Connecting flange: JG/T79 GB9113 HG20593-20635
Testing and Inspection: GB13927 JB/T9092
Product Usage
High pressure flange connected steel gate valve is suitable for cutting off or connecting media on pipelines in various working conditions such as petroleum, chemical, and thermal power plants with nominal pressure PN10.0-25.0Mpa and working temperature -29-600 ℃. Applicable media include water, oil, steam, etc. The operation modes include manual, gear transmission, electric, etc.
Product Structure Features:
1. Meet the requirements of advanced domestic and international standards, with reliable sealing, excellent performance, and beautiful appearance.
2. The sealing surface of the gate and valve seat is made of iron-based alloy or Stellite cobalt based hard alloy, which is wear-resistant, high-temperature resistant, corrosion-resistant, has good scratch resistance, and has a long service life.
3. The valve stem has undergone quenching and surface nitriding treatment, which provides good corrosion resistance and abrasion resistance.
4. Adopting a wedge-shaped elastic gate structure, rolling bearings are installed for medium and large diameters, resulting in low friction and easy opening and closing.
5. Various piping flange standards and flange sealing surface types can be adopted to meet various engineering needs and user requirements.
Material specifications for the main components of Z541H/Y high-pressure steel gate valve:
| Valve body |
WCB |
A105 |
Cr5Mo |
ZGCr18Ni9Ti |
| Valve Cover |
WCB |
A105 |
Cr5Mo |
ZGCr18Ni9Ti |
| Bracket |
WCB |
A105 |
Cr5Mo |
ZGCr18Ni9Ti |
| Gate plate |
WCB |
twenty-five |
Cr5Mo |
ZGCr18Ni9Ti |
| Valve stem |
2Cr13 |
2Cr13 |
38CrMoA1、25Cr2MoV |
1Cr18Ni9Ti |
| Valve seat |
twenty-five |
twenty-five |
three hundred and four |
three hundred and four |
| sealing ring |
304. Reinforced flexible graphite |
| Packing material |
Enhanced flexible graphite |
| stem nut |
ZCuA110Fe3 |