What is a grooved butterfly valve?

Grooved butterfly valve is a special type of valve. The following is a detailed explanation of it:

1. Definition and working principle

Grooved butterfly valve refers to a device that uses worm gear and worm gear transmission, and then the cam rotates to press or release the contact on the signal device according to the predetermined position, and outputs “on” and “off” electrical signals accordingly to display the opening and closing status of the butterfly valve.

2. Classification

Grooved butterfly valves are mainly divided into two types:

• Handle groove butterfly valve: The valve is controlled by manually operating the handle.
• Turbine groove butterfly valve: It uses a worm gear transmission mechanism to operate the valve by rotating the turbine, and can output electrical signals for remote monitoring.

3. Structure and material

• Structure: The groove butterfly valve consists of a valve body, a valve plate, a valve stem, a sealing ring and other components. The valve body is welded with thick-walled seamless pipes, and the valve plate is ductile iron, which is reliable and durable.
• Materiale: The groove butterfly valve is mainly made of carbon steel, and the valve plate is made of ductile iron, which is more durable than cast iron, more beautiful in appearance, and more affordable.

4. Features and advantages

1. Quick installation: The groove clamp connection and the corresponding pipe fittings are used to install the pipeline, without welding, which increases the installation speed.
2. Lightweight and easy to operate: The clamp connection is light in weight, with a small number of bolts, easy to install, and no special skills are required.
3. Reliable sealing: The scientific structural design and unique C-type rubber sealing ring achieve triple sealing and ensure the reliability of the seal.
4. Safe and reliable: Due to the mechanical assembly, no welding and no open flames, there is no welding slag to turbid the pipeline, which can ensure the safety of the construction site.
5. Economical and practical: Due to the quick installation, no special skills are required, and the installation rework rate is low, the comprehensive installation cost can be reduced by 30~50% compared with the flange.
6. Small space occupation: The space occupied by the groove clamp connection is about 70% of the flange, which is suitable for occasions with narrow space.
7. Easy maintenance: Safe and reliable product quality, as long as it is properly installed, the pipeline will pass the pressure test once, operate safely, and usually do not need maintenance, and the spare parts do not need to be replaced for decades.
8. Wide applicability of pipes: Grooved clamp connections can be used to connect various seamless steel pipes, galvanized steel pipes, welded steel pipes, stainless steel pipes, copper pipes and other metal pipes.
9. Flexible connection: The pipeline connected by the flexible groove clamp connection is a flexible system, which can absorb the length displacement of the pipe due to temperature changes and allow the pipe to have a certain offset angle.

5. Application field

Grooved butterfly valves are widely used in water supply and drainage, fire protection, petroleum, chemical, pharmaceutical, steel and other pipelines for cutting off or regulating. Specific application scenarios include but are not limited to:

• Pipeline system: such as water supply, drainage, fire protection, etc., used to effectively cut off or regulate the flow of fluids.
• Industrial equipment: used to control the flow and direction of gas or liquid, such as when used with fans, pumps and other equipment.
• Water conservancy projects: used to control the speed and direction of water flow in fields such as reservoirs and river management.
• Construction industry: mainly used in heating systems and air-conditioning systems, to achieve automatic adjustment of indoor temperature by controlling the flow path and time of hot water.
• Environmental protection projects: used in sewage treatment and water purification, to achieve emission standards and resource recovery by controlling the treatment and discharge of different components in sewage.

In summary, groove butterfly valves have been widely used and recognized in many fields due to their unique structural design and superior performance characteristics.