-
Watching this video willVideo unavailable.
consume data if you are not using WI-FI
Please check your network. 
Manual/Electric/Pneumatic/Hydraulic Industrial Usage Waste Water Treatment Large Double Flanged Butterfly Valve/Gas Regulator/Solenoid Valve /Ball Valve
Purchase Qty. / FOB Price:
Get Latest PriceQuick Details
Quick Details
Product Details
The main characteristics of flanged butterfly valve are:1, small and light, easy disassembly and maintenance, and can be installed in any position.
2, simple structure, compact, small operating torque, 90° turn to open quickly.
3, the flow characteristics of straight line, good regulation performance.
4. The connection between butterfly plate and valve stem adopts no pin structure to overcome the possible internal leakage point.
5, butterfly plate outer circle using spherical shape, improve the sealing performance and prolong the service life of the valve, with pressure open and close more than 50,000 times still maintain zero leakage.
6, the sealing parts can be replaced, and the sealing is reliable to achieve two-way sealing.
7, butterfly plate can be spraying coating according to user requirements, such as nylon or ptfe.
8, the valve can be designed as flange connection and clamping connection.
9, the driving mode can choose manual, electric or pneumatic.
Flange butterfly valve is suitable for temperature ≤120ºC or ≤150ºC, nominal pressure ≤ 1.6mpa water supply and drainage, sewage, food, heating, gas, ship, hydropower, metallurgy, energy system and textile industries, especially for two-way sealing and valve corrosion occasions, as flow regulation and closure medium.
| ||
| Body | Cast Iron Ductile Iron Carbon Steel Stainless Steel AL-Bronze | |
| Disc | Ductile Iron Carbon Steel Stainless Steel AL-Bronze | |
| Shaft | Stainless Steel Monel K500 | |
| Seat | BUNA NBR EPDM VITON PTFE HEPDM Neoprene Hypalon Natural rubber |
1. The valve must be kept in a dry and ventilated room, and the valve plate should be opened 4-5 degrees.
2. Long-term storage should be checked regularly. Machined surfaces should be cleaned of surface dirt once every 6 months.
3. When installing, carefully check whether the use of the valve is consistent with the performance specifications.
4. Before installation, installation and debugging personnel should carefully read the operation manual, electric device manual, circuit diagram, etc., and be familiar with the installation and debugging procedures.
5. Pay attention to the following items during installation:
A. Check whether there are sundries in the valve channel and sealing surface, and clean them in time. The valve should be installed in time after unpacking, and do not loosen the fastening bolts of the valve at will.
B. When butterfly valve is installed, the butterfly plate should be in the closed position.
6. The connecting bolts between the butterfly valve and the pipeline should not be tightened individually at one time, but should be tightened alternately in the corresponding direction of the circumference to prevent the flange breakage or leakage caused by uneven tightening.
7 butterfly valve is generally one-way use, installation should be noted, the direction of the arrow on the valve body represents the pressure direction of the medium when the valve is closed.
8. Butterfly valve can be installed in any Angle of the pipeline, but should not be inverted, usually vertical or horizontal installation.
9. If you need to adjust the flow during use, adjust the opening position of the driving device for control.
10. When the electric butterfly valve leaves the factory, the opening and closing stroke of the control mechanism has been adjusted well. In order to prevent the direction of the power supply from being wrong, the butterfly valve should be manually switched to the half-open position for the first time, and then switch to check whether the direction of the indicating disk is consistent with the direction of the valve.
11. Seal test must be carried out after valve repair.
The company covers an area of about 15,000 square meters, more than 200 employees, 15 technical personnel, the company mainly produces water series of valves, butterfly valves, gate valves and check valves, as well as other customers ordered
This year, we passed the DNV and ABS certificates
1.We have enough stock and can deliver in short all year round, because we are actually a manufacturer.
2.We are amenable to advice in choosing type of valve or others for customers.
3.Normally, OEM and ODM can be accepted.
4.We also offer designed drawing and technical supports.
5.Fast and quick response if you need any assistance.