The cast iron wafer type butterfly valve drives the opening and closing of the butterfly plate through the rotation of the valve stem, achieving precise regulation or rapid switching of the fluid. When the butterfly plate is parallel to the pipeline, the valve is fully open and the fluid can pass through unimpeded; when the butterfly plate is rotated 90° to a vertical state, the valve is completely closed. This design not only makes operation convenient and responsive, but also ensures low flow resistance loss. In order to improve the sealing performance, the butterfly plate usually adopts an elastic sealing design to effectively prevent medium leakage and ensure the stability and safety of the system.
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What does SF-DL do?
Hand valve is a kind of manual stop valve and applicable to one-way flow.It also can be used for the liquid of freezing,refrigeration and air conditioning;and it is also used in inhale&heating pipes.
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Wafer structure: The wafer design can be directly clamped between two flanges without additional connectors and supporting equipment, thus simplifying the installation process and saving installation space, which is very suitable for pipeline systems in narrow spaces.
Durable cast iron material: The valve body is made of high-quality cast iron, with excellent corrosion resistance and durability, suitable for handling neutral liquids such as water and air, ensuring long-term stable operation in harsh environments.
Quick switching and adjustment: The flow rate is opened and closed by rotating the butterfly plate, and the full open or full closed state can be achieved by rotating 90°. It is easy to operate, has low fluid resistance, and is sensitive to response.
Quick Detail
◆ With nylon valve core,durable sealing surface,long service life.
◆ With a stainless steel diaphragm which can avoid leaking during service life.
◆ Just turn one and a half circle to make the valve full open or full closed.Simple operation,flexible start, no noise.
◆ Applicable refrigerant medium: For R22,R134A,R410A,R502,R407C etc.
◆ Medium temperature:-25℃-+100℃
◆ Maximum working pressure:4.5MPa
FAQ
1. How to install a cast iron wafer type butterfly valve?
The installation of a cast iron wafer butterfly valve is very convenient. Simply clamp the valve between the pipe flanges and tighten the bolts through the flange holes on both sides without the need for additional support structures. This wafer design makes it particularly suitable for piping systems with limited installation space.
2. Is the cast iron wafer butterfly valve suitable for high temperature or high pressure environments?
In general, cast iron wafer butterfly valves are suitable for medium and low pressure and medium temperature fluid environments. For special scenarios with high temperature or high pressure, it is recommended to choose butterfly valves made of higher strength materials (such as stainless steel) to ensure safety.
3. What are the driving methods of cast iron wafer type butterfly valves?
The valve supports a variety of driving methods, including manual, pneumatic and electric. Manual operation is suitable for low-frequency switching occasions, pneumatic is suitable for scenarios with rapid response requirements, and electric is suitable for systems that require remote control and automated management.
4. How to maintain a cast iron wafer butterfly valve?
The maintenance of cast iron wafer butterfly valves is relatively simple. Regularly check the seals and valve stems and remove impurities to avoid seal failure or increased operating resistance. If the seal is worn, the sealing material can be replaced to extend the service life. The valve body is made of cast iron and it is recommended to avoid using it in an environment containing highly corrosive media.
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