The key part of bellow sealed globe valves is mental below. It is the connection between cover and stems with automatic roll welding. The mental bellow can keep the stem part no leakage.
Application
The hot oil system, steam system, hot and cold water system, etc.
Advantage
1.Bellow seal element. The key part of bellow sealed globe valves is mental below. It is the connection between cover and stems with automatic roll welding. The mental bellow can keep the stem part no leakage.
2.Double seal design(bellows+packing). Bellow and packing can protect against leakage and provide an excellent seal.
3.Grease nipple. It can direct lubricate the stem, nut, and sleeve.
4.Ergonomic handwheel. It provides longer service life and easier operation.
Technical specification
Design standard: ASME B16.34
Face to face dimension: ASME B16.10
Flanged ends: ASME B16.5
Test & inspection: API 598
Performance specification
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Nominal Pressure |
PN |
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Test Pressure |
Strength test |
1.5PN |
MPa |
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Sealing test |
1.1PN |
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Gas seal test |
0.6 |
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Bellows test |
1.1PN |
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Suitable temp |
-196℃~600℃ |
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