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High-Quality Marine flange type manual operated butterfly valve Supplier, Manufacturers
Product Description
Product Performance Specification
| PARTS NAME | MATERIAL | CODE NAME |
|---|---|---|
| Body | QT400-15 | QT |
| WCB | G | |
| ZQAL9-2 | W | |
| Disc | ZQAL9-2 | W |
| CF8 | B1 | |
| CF8M | B2 | |
| Seal ring | NBR | N |
| FPM | F | |
| Stem | 1Cr13 |
| PN(MPA) Nominal Pressure | DN(mm) Nominal Diameter |
|---|---|
| 1 | 50~600 |
💧
Available Medium: Sea water, Fresh water, Air, Crude oil and finished oil at the temperature 80℃ and below 80℃
Using instruction:
1. For gasoline and other medium which temperature from 80℃ and 170℃, only the "FPM" can be used.
2. The valve is applicable to industrial of shipping, petroleum, chemical engineering, metallurgy, food etc.
⏹ 3. Fluid cutoff:
The opening and closing of the valve can be achieved by rotating the valve plate, thereby controlling the on - off of the fluid in the pipeline. This is convenient for the maintenance and repair of various pipeline systems, or for stopping the operation of certain systems as needed. For example, in the seawater cooling system of a ship, when it is necessary to repair the cooling pipeline or related equipment, the double - flange butterfly valve can be closed to cut off the flow of seawater, ensuring that the maintenance work can be carried out safely in a water - free environment.
📊 4. Flow regulation:
By changing the opening degree of the valve plate, the flow rate of the fluid in the pipeline can be adjusted. For example, in the fuel supply system of a ship, according to the load of the engine and the actual operation requirements, the double - flange butterfly valve can be used to accurately adjust the fuel flow rate to ensure that the engine receives the appropriate fuel supply and maintain its stable operation.
🔄 5. Flow direction control:
With the cooperation of other valves or pipeline layouts, the marine double - flange butterfly valve can also control the flow direction of the fluid, making the fluid flow between different pipelines or equipment according to the design requirements. For example, in the ballast water system of a ship, by operating the double - flange butterfly valve, the ballast water can be guided into different ballast tanks to achieve the balance adjustment and stability control of the ship.
Packaging
Frequently Asked Questions (FAQ)
What seal ring material should be selected for high-temperature media?
For gasoline and other media operating between 80℃ and 170℃, only the FPM (Fluororubber) seal ring should be used to guarantee performance and reliability.
What size ranges and pressure ratings are available for this valve?
The valve supports a nominal pressure of PN 1.0 MPa and comes in nominal diameter sizes ranging from DN50 mm to DN600 mm.
What media are compatible with standard operating conditions?
The valve handles sea water, fresh water, air, crude oil, and finished oil at standard operating temperatures of 80℃ and below.
Can this butterfly valve regulate medium flow in marine systems?
Yes, by adjusting the opening degree of the valve disc, precise flow rate control can be maintained for systems like marine fuel supplies.
What materials are available for the valve disc?
Disc material options include aluminum bronze (ZQAL9-2) and stainless steels (CF8 and CF8M), allowing compatibility with various corrosive marine media.
