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API cast steel flanged gate valve is used for pipelines to connect or cut off medium in petroleum, chemical and thermal power, etc.
Characteristics:
1. Design is based on API, having reliable seal and good characteristics. The valve can work with imported equipments.
2. 600 LB disc and base is made of satellite, having wearing resistance, temperature resistance, long service life
3. Stem has been tempered and nitrided, having good corrosive resistance.
4. Adopt wedge elastic disc.
5. Gasket can be made of different materials to meet the requirement under various conditions.
Standard: API 600
Flange: ANSI B 16.5
Length: ANSIB 16.10
Butt welding: ANSI B16.25
Pressure-temperature: ANSI B16.34
Testing & Inspection: GB 13927
Parameter
Nominal Pressure(Lb) | Testing Pressure | Working Temperature(℃) | ||
Strength(water)(MPa) | Sealing(water) | Low-pressure sealing | ||
150 | 2.4 | 1.8 | 0.6 | ≤200 |
200 | 3.8 | 2.8 | 0.6 | ≤200 |
300 | 6.0 | 4.4 | 0.6 | ≤200 |
600 | 9.6 | 7.0 | 0.6 | ≤200 |
Materials
Body/bonnet | ZG1Cr18Ni9Ti | ZG00Cr18Ni10 | ZG1Cr18Ni12Mo2Ti | ZG00Cr17Ni14Mo2 | WCB |
Disc | ZG1Cr18NI9Ti | ZG00Cr18Ni10 | ZG1Cr18Ni12Mo2Ti | ZG00Cr17Ni14Mo2 | 1Cr13 |
Stem | 1Cr18Ni9Ti | ooCr18Ni10 | 1Cr18Ni12Mo2Ti | ooCr17Ni14Mo2 | 1Cr13 |
Packing | PTFE | PTFE | PTFE | PTFE | Graphite |
Gasket | 304L+PTFE | 304L+PTFE | 316L+PTFE | 316L+PTFE | Graphite +304 |
Gland | ZG1Cr181Ni10 | ZG00Cr18Ni10 | ZG1Cr18Ni12Mo2Ti | ZG00Cr17Ni14Mo2 | WCB |
Packing grading ring | 1Cr18Ni9Ti | 00Cr18Ni10 | 1Cr18Mi12Mo2Ti | 00Cr17Ni14Mo2 | 1Cr13 |
Bolt | 1Cr171Ni2 | 1Cr171Ni2 | 1Cr171Ni2 | 1Cr171Ni2 | 35CrMoA |
Nut | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 45 |
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