D971X Wafer Type Butterfly Valves

D971X electric wafer soft sealing butterfly valve has the functions of servo operation inside the machine, position feedback of opening signal, position indication, manual operation, etc. It is strong in function, reliable in performance, simple in connection, precise in control, small in size, light in weight and small in flow resistance. , The flow coefficient is large, the structure is simple, and the sealing performance is good.
detail introduction

D971X Electric Soft Seal Butterfly Valve Electric Soft Seal Butterfly Valve Electric Butterfly Valve Pneumatic Wafer Type Soft Seal Butterfly Valve Pneumatic Flange Soft Seal Butterfly Valve

1. Product Description of D971X Electric Wafer Type Soft Seal Butterfly Valve

The purpose of the utility model is to design a vertical handwheel operating mechanism of a wafer type rubber-lined butterfly valve in which the force application direction and the rotation direction of the valve switch are in the same plane when the handle is operated. Material selection of main components of electric soft sealing butterfly valve: valve body material: cast iron, ductile iron, stainless steel, copper alloy, aluminum alloy; disc material: ductile iron, stainless steel, corrosion-resistant steel, titanium steel, copper alloy; valve seat: D , ethylene propylene glycol, neoprene, Hyporon, PTFE, natural rubber, etc. The electric soft-seal butterfly valve adopts a variety of parts and materials, and consists of a double eccentric wafer butterfly valve and a fine and small electric actuator.

Its structure is compact, the 90° rotary switch is easy, and the sealing is reliable. The electric soft-seal butterfly valve has a long service life and is widely used It is used as regulation and cut-off in the water supply and drainage of water plants, power plants, steel mills, papermaking, chemical industry, catering and other systems. The utility model relates to a valve, which is a vertical handwheel operating mechanism for a clip-type rubber-lined butterfly valve, which is particularly suitable for supporting use in underground pipelines such as water supply, sewage discharge, chemical industry, metallurgy and the like.

The main defect of the existing wafer-type rubber-lined butterfly valve handwheel operating mechanism is that the direction of force applied by the handle is not in the same plane as the direction of rotation of the valve switch. Difficult to switch on and off.
The technical solution of the utility model is that there is a casing and an upper cover connected to the casing, the main shaft installed in the casing is connected to the handwheel through the upper cover, a sealing device is arranged between the upper cover and the main shaft, and a tooth is arranged at the lower end of the upper cover There are teeth on the upper end of the groove and the main body to form a clutch, the main body is connected with the main shaft through a key, the lower part of the main shaft is provided with a return spring, the lower end of the main body is connected with the valve stem, and the bottom surface of the shell is connected with the flange of the wafer type rubber-lined butterfly valve.

The utility model is a vertical handwheel operating mechanism of a wafer type rubber-lined butterfly valve. Compared with the prior art, the force exerting direction of the handle and the rotation direction of the valve switch are in the same plane when the handle is operated. The operation is convenient and labor-saving, and the installation space is reduced; in addition, the spring installed on the shaft end is only compressed and not subject to the torsion of rotation, which can not only increase the life of the spring itself, but also prolong the reliability of the valve operation.Features
1. The valve adopts double eccentric structure, which has the sealing function of tighter and tighter, and the sealing performance is reliable.
2. The sealing material is made of stainless steel and butyl oil-resistant rubber, which has a long service life.
3. The rubber sealing ring can be located on the valve body or on the butterfly plate, and can be applied to media with different characteristics for users to choose.
4. The butterfly plate adopts frame structure, which has high strength, large flow area and small flow resistance.
5. The overall paint can effectively prevent corrosion and can be used for different media as long as the sealing material of the sealing valve seat is replaced.
6. The valve has a two-way sealing function. It is not controlled by the flow direction of the medium during installation, nor is it affected by the spatial position. It can be installed in any direction.
7. The valve has a unique structure, flexible operation, labor-saving and convenient.
It rotates around the axis, and the rotation angle is between 0° and 90°. When it rotates to 90°, the valve is fully open. Electric soft sealing butterfly valve is simple in structure, small in size and light in weight, and only consists of a few parts. And it only needs to rotate 90° to open and close quickly, the operation is simple, and the electric valve has good fluid control characteristics. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the maximum resistance when the medium flows through the valve body, so the pressure drop generated by the valve is very small, so it has better flow control characteristics. Butterfly valves have two types of seals: elastic seal and metal seal. Elastic sealing valve, the sealing ring can be inlaid on the valve body or attached to the periphery of the disc. If the butterfly valve is required to be used as flow control, the main thing is to correctly select the size and type of the valve. The structure principle of the butterfly valve is especially suitable for making large-diameter valves. Butterfly valves are not only widely used in general industries such as petroleum, gas, chemical, and water treatment, but also in cooling water systems in thermal power plants. Similar products also include pneumatic soft-sealed butterfly valves and manual soft-sealed butterfly valves.

executive body
The electric soft-sealed butterfly valve has a small operating torque, which is the smallest operating torque among all valves. It is the execution unit of the instrument in the automatic control system. It is powered by AC220V, AC380V or DC24V power supply voltage, and accepts from (DCS, PLC) system or The operation can be controlled by adjusting the current signal or voltage signal (4-20mA, 0-10mA or 1-5VDC) input by the instrument and operator. Turning the valve shaft 0~90° with the torque output by the angular stroke can complete the opening and closing action or the adjustment action.

product structure