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Uses and characteristics of manual butterfly valve (1)
The butterfly plate of the manual butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0°-90°. When the rotation reaches 90°, the valve is fully opened. The butterfly valve is […]
Installation instructions of the wafer type butterfly valve
Preparation before installation of wafer type butterfly valve: 1. Check whether the specifications and materials of the butterfly valve conform to the design before installation. 2. Before installation, clean the internal sand, dust, foreign matter and debris to avoid irregular movement or leakage. 3. The related piping should be properly suspended and fixed according to […]
The structural characteristics and uses of the wafer butterfly valve
The structural characteristics and uses of the wafer type butterfly valve: The unique design of three-way eccentricity enables frictionless transmission between the sealing surfaces and prolongs the service life of the valve. The elastic seal is produced by torque. The ingenious wedge-shaped design makes the valve have an automatic sealing function as the valve is […]
Comparison and analysis of the performance of the wafer butterfly valve
With the same nominal pressure and nominal diameter, ordinary which has better tightness and is not easy to leak? butterfly valve or gate valve? The airtightness of the gate valve is better than that of the butterfly valve, but there are also manufacturers’ butterfly valves that have better airtightness. The gate valve is large in […]
What is a wafer type butterfly valve
The butterfly valve plate of the wafer type butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical passage of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis, and the rotation angle is between 0°-90°. When the rotation reaches 90°, the valve is fully opened. This valve […]
Notes on selection and installation of butterfly valve
Product selection points of butterfly valves: 1. The main control parameter of the butterfly valve is the size. 2. The butterfly valve is a single-plate air valve. It has a simple structure, convenient processing, low cost, and easy operation, but the adjustment accuracy is poor. It is only suitable for the occasion of switching or […]
Common failures of butterfly valves and the characteristics of installation
Common errors of butterfly valves: The rubber elastomer in the butterfly valve will tear, wear, aging, perforate or even fall off during continuous use. The traditional thermal vulcanization process is difficult to meet the needs of on-site repair. Special equipment is used for repair, which consumes a lot of heat and electricity, which takes time […]
Applicable occasions of butterfly valve
Butterfly valves are suitable for flow regulation. Because the pressure loss of the butterfly valve in the pipeline is relatively large, the robustness of the butterfly plate to withstand the pressure of the pipeline medium when closing should also be considered. In addition, the working temperature limit of the elastic seat material must be considered […]
How to choose the right butterfly valve (2)
However, the following problems still exist during the use of this butterfly valve: 1. Due to the multi-layer soft and hard laminated seal ring fixed on the valve plate, when the valve plate is normally open, the medium forms a frontal flush on the sealing surface. The soft sealing tape in the metal sheet interlayer […]
How to choose the right butterfly valve (1)
When the butterfly valve is fully open to fully closed, it turns usually less than 90°. The butterfly valve and the butterfly stem itself have no self-locking capability. For the positioning of the butterfly plate, a worm gear reducer must be installed on the valve rod. The use of worm gear reducer can not only […]