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Center line-type butterfly valve
Center line-type butterfly valve is usually used for temperature ≤120℃, nominal pressure ≤ 1 6mpa water supply and drainage, gas pipeline for flow regulation and cut off the role of the fluid
Application
Center line-type butterfly valve is usually used for temperature ≤120℃, nominal pressure ≤ 1.6mpa in electric power, petroleum, food, medicine, chemical industry, textile, paper and other water supply and drainage, gas pipeline to adjust the flow and cut off the fluid role.
Characteristic
• The structure of the midline butterfly valve is characterized by the stem axis, butterfly plate center, body center in the same position; Sealing materials for rubber, ptfe and other materials;
• Novel design, reasonable, unique structure, light weight, opening and closing speed;
• Butterfly valve operation torque is small, easy to operate, labor-saving dexterity;
• Small size, light weight, small installation space, low cost, can be installed at any position, easy maintenance;
• Seals can be replaced, reliable sealing performance to achieve two-way sealing zero leakage;
• Valves can be clipped or flanged;
• Drive mode is worm gear drive, manual, pneumatic or electric.
Design Guides
| Design and manufacture | Structure length | Connector size | Inspection and test | Pressure and temperature reference |
| NB/T47044、 GB/T 12238 |
GB/T 12221 | GB/T9124.1、JB/T79、GB/T 17241.6 | GB/T13927 | NB/T47044、 GB/T 12224、 GB/T 17241.1 |
Product Range
| Nominal pressure | PN2.5、PN6、PN10、PN16 | |
| Nominal size | DN50～DN1200 | |
| Body matenal | WCB、HT250、HT300、QT400-15、QT450-10 | |
| Test pressure(MPa) | Strength test (Water pressure) | 1.5×P(38℃ pressure rating) |
| Sealing test (Water pressure) | 1.1×P(38℃ pressure rating) | |
| Applicable Temperature | -29℃～120℃ | |
| Applicable medium | Water, steam, oil, air, gas, sewage, etc | |
Note：
1、The valve beyond the above specifications can be customized according to user requirements;
2、The applicable temperature range of each valve shall be subject to the actual pressure bearing material of the valve.