National standard stop valve DN80
Implementation Standard | ||||
Design and Manufacturing | Structural Length | Flange Dimensions | Pressure-Temperature | Test - Inspection |
GB12235 | GB12221 | GB9113JB79 | GB9131 | GB/T13927JB/T9092 |
Pressure Test | ||||||
Nominal Pressure | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 16.0 |
Strength Test | 2.4 | 3.8 | 6.0 | 9.6 | 15.0 | 24.0 |
Water Sealing Test | 1.8 | 2.8 | 4.4 | 7.0 | 11.0 | 18.0 |
Upper Sealing Test | 1.8 | 2.8 | 4.4 | 7.04 | 11.0 | 18.0 |
Gas Sealing Test | 0.4-0.7 | |||||
Materials and Properties of Main Parts | ||||||
Valve Body, Bonnet, Disc | Valve Stem | Sealing Surface | Gasket (Ring) | Packing | Working Temperature (℃) | Applicable Medium |
WCB | 2Cr13 | 13Cr STL Base Material PTFE Nylon | Reinforced Flexible Graphite 1Cr13/Flexible Graphite 1Cr13 08 Mild Steel 0Cr18Ni9Ti 0Cr17Ni12Mo2Ti XS550F(T) PTFE | Reinforced Flexible Graphite/Flexible Graphite SFB/260 SFP/260 PTFE | ≦425 | Water, Steam, Oil |
WC1 | 38CrMoAl 25Cr2MoV | ≦450 | ||||
WC6 | ≦540 | |||||
WC9 | ≦570 | |||||
ZGCr5Mo | ≦540 | |||||
ZG1Cr18Ni9Ti | 1Cr18Ni9Ti | ≦540 | Nitric Acid | |||
ZG1Cr18Ni12Mo2Ti | 1Cr18Ni12Mo2Ti | |||||
| Machinery & Equipment/Valves/Globe Valves | |
