Flange ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline. The flange ball valve standard GB/T21465-2008 "Valve Terminology" is defined as: the opening and closing part (sphere) is driven by the valve stem and rotates around the axis of the valve stem.
Main structure size of Flange Ball Valve
The main technical parameters of Flange Ball Valve
Design standard: GB/T15185
Pressure test standard: GBT13927
Nominal pressure: 1.6MPa
Working temperature: 0℃-200℃
Applicable medium: water, steam, oil, etc.
Material of main parts
Valve body: gray iron / ductile iron
Bonnet: gray iron/ductile iron
Sphere: stainless steel
Sealing ring: PTFE
Flange ball valve is a new type of valve that is widely used. It has the following advantages:
1. The fluid resistance is small, and its resistance coefficient is equal to that of a pipe section of the same length.
2. Simple structure, small size and light weight.
3. It is tight and reliable. The sealing surface of the ball valve is made of plastic widely, which has good sealing performance and has been widely used in vacuum systems.
4. Convenient operation, rapid opening and closing, only need to rotate 90° from fully open to fully closed, which is convenient for remote control.
5. Convenient maintenance, simple structure of the ball valve, generally movable sealing ring, easy to disassemble and replace.
6. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and the medium will not cause erosion of the valve sealing surface when the medium passes.
7. It has a wide range of applications, with a diameter ranging from a few millimeters to a few meters, and can be applied from high vacuum to high pressure. This type of valve should generally be installed horizontally in the pipeline
1. If the customer has special requirements for the product, the following instructions must be provided in the order contract:
(a).Structure length; (b) Connection Type; (c) Nominal diameter;
(d) Product use medium and temperature and pressure range;
(e) Test, inspection standards and other requirements.
2. Our factory can assemble various driving devices according to customer requirements.
3. If the customer needs to customize a special valve, the meaning and requirements of the model should be correctly explained, and the contract should be signed under the conditions that the supplier and the buyer understand the same.
4. For futures and order customers, please call us and tell us the required valve model, specification, quantity, delivery time and location in detail. And prepay 50% of the total contract amount for the preparation of production materials.
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