Active Member
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[China]
Address: Jianshe South Street, Yuhua District, Shijiazhuang City, Hebei Province, China
Contact name:Ada Chen
China • Yuanda Valve Group Co., Ltd. |
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The valve can be widely used in the clean water system of municipal
pipe network, water heating system, construction and other
industries. It can not only quickly connect or cut off the medium,
but also quickly adjust the medium flow. The valve can be used on
the pipeline or equipment of non corrosive medium to intercept,
connect and regulate the flow.
When the handle of the valve is rotated by 90 °, the valve shaft
also rotates. The valve shaft drives the butterfly plate to rotate
to open or close. The dial and the handle meet to adjust the flow
| Type | DN | Ф | A | B | Z-Φd | L |
| D371X-10/16Q | 40 | 125 | 74 | 116 | 4-Φ19 | 43 |
| 50 | 125 | 74 | 116 | 4-Φ19 | 43 | |
| 65 | 145 | 82 | 124 | 4-Φ19 | 46 | |
| 80 | 160 | 89 | 132 | 4-Φ19 | 46 | |
| 100 | 180 | 106 | 186 | 4-Φ19 | 52 | |
| 125 | 210 | 119 | 195 | 4-Φ19 | 56 | |
| 150 | 240 | 136 | 212 | 4-Φ23 | 56 | |
| 200 | 295 | 170 | 225 | 4-Φ28 | 60 |
| Part Name | Part material |
| Body | Ductile iron |
| Seat | Ductile iron＋EPDM |
| Disc | Ductile iron |
| Stem | Carbon steel ,SS |
1. The structural dimensions shall comply with GB/T12221, with
small volume, light weight and easy operation.
2. The structure adopts a half shaft structure, which can be
quickly opened when operating at 90 °; The disc plate has high
strength, large flow area, small current resistance and energy
saving.
3. The medium can flow through both sides of the flange butterfly
valve in any direction to achieve the purpose of connection or cut
off.
1. The valve is installed on the pipeline for opening and closing,
and can also be used for regulation and throttling.
2. The valve can be installed in any direction.
3. Clean the pipe and valve cavity before installation.
4. The valve shall be free from large external force after
installation.
5. The valve is installed on the pipeline that has been closed for
a long time, and it should be opened and closed regularly.
6. When the local minimum temperature is lower than 4 ℃, thermal
insulation protection shall be carried out; As the end valve, the
tracing pipe or jacket shall be used for heating to prevent the
pipe wall temperature from being lower than 0 ℃.
7. It is strictly prohibited to install and use it on the pipeline
that is subject to vibration or rapid change of medium temperature.
8. The operating conditions shall be consistent with the
requirements in the performance specification
