Motorized Butterfly Valve

Description

The electrically actuated butterfly valve is used for on-off control of water and other media compatible with the materials of construction.

What is a Motorized Butterfly Valve?

A motorized butterfly valve is a type of valve which can be used for isolating or regulating flow. The closing mechanism is the disc, which sits in the center of the valve body. The disc is connected to a handle or actuator via the shaft, which passes from the disc through the top of the valve body.

ZECO motorized butterfly valve is suitable for the occasion of flow regulation. Because the butterfly valve disc and stem components still have the problem of resisting medium flow in the pipeline, the pressure loss of the butterfly valve is still greater than that of the gate valve. Therefore, the influence of pressure loss should be considered when selecting a motorized butterfly valve as the regulating or switching valve. But the structure of the butterfly valve length is short, the overall height will be short many compared to other valves, at the same time open speed by electric, gear or handle faster than many other valve operation, at the same time has good flow control characteristics, so the use of motorized butterfly valve range is very wide, usually as the regulation of motorized valves and motorized switch valve is used in petroleum, chemical industry, power plants, pharmaceutical, shipbuilding, metallurgy, and other industrial areas, at the same time as the pipeline system of the cut-off valve, control valve, and check valve. ZECO, as a professional manufacturer of motorized butterfly valves, usually uses specially designed metal sealed triple eccentric or double eccentric butterfly valves as recommended products for users under special working conditions.

How does a Motorized Butterfly Valve work?

A motorized butterfly valve operates by changing the position of a round disc that is located within a pipeline. The disc is the size of the pipe circumference, which allows it to create a reliable seal during instances when it is necessary to restrict or stop the flow of process media. Motorized butterfly valves are available in a variety of sizes, so any factory will be able to order one that specifically fits and operates within their pipelines. The most common ranges of sizes for butterfly valves and their discs are between a couple of inches and a couple of feet, although larger industrial applications of this particular valve may span quite a bit larger than those typical ranges.

When a motorized butterfly valve disc is in the closed position, the pipeline is completely blocked and flow is stopped. The disc for the valve is attached to the valve shaft, which is then controlled by a motor. When this motor moves the valve to the open position, the disc is parallel to the pipeline and liquids are able to flow past the disc on either side. There is still a drop in flow volume because the disc itself is still present within the pipeline. However, flow is permitted to pass. If flow needs to be throttled, controlled, or regulated for volume as production needs to change, the motor can turn the disc to a position where it is partially open. If a changing amount of process media volume flow is needed for production, the motorized butterfly valve can adjust during the process to supply appropriate amounts of liquid.

Applications of Electrically Actuated Butterfly Valve

Butterfly valves are isolating valves used on water supply networks, in the interconnections of networks, in the factories, in pumping stations, on the general networks, and on the fire protection networks in industrial sites.

Features of Motorized Butterfly Valves

• 1. The mounting pad of ZECO motorized butterfly valve is designed as per ISO 5211. It is easy for the user to configure the standard electric actuator by himself or directly by ZECO’s fully configured electric actuator delivery;
• 2. The upper and lower stem of ZECO motorized butterfly valve is designed for anti-blow out. This design prevents the risk of a blowout when maintenance is required;
• 3. The seal of ZECO motorized butterfly valve is designed for fire safety. Sealing is not resilient seated and can meet API 607 fire test requirements;
• 4. The torque of ZECO motorized butterfly valve is low. Users can match a lower gear than the conventional electric actuator, saving costs.
• Overloading protection keeps the valve and your project safe
• Multiple control methods for choice
• Weather-proof protection class which suitable for outdoor uses
• ISO 5211 mounting standard which could suitable for all types of a butterfly valve
• Available in adjusting the open/close angle to make the flow control more easily
• Strict quality control with ISO9001:2015 to ensure a low failure rate of the actuator
• Provide wafer/lugged/flanged/tri-clamp butterfly valves to meet your pipeline requirements.
• Large size range for choice and that could meet your pipeline size.
• Easy installation and easy maintenance. Long service life span.
• All butterfly valve has passed the material test. Eco friendly.
• High flow, lightweight, multiple connection types for choice

Material of Motorized Butterfly Valves

No	Part	Material
1	Body	ASTM A351 CF8M
2	Seal Ring	Graphite + SS316
3	Retainer Flange	ASTM A182 F316
4	Pin	ASTM A276 316
5	Disc	ASTM A351 CF8M
6	Stem	ASTM A276 316
7	Stem Packing	Graphite
8	Stem Beating	SS316 + PTFE
9	Bolt	ASTM A193 B8M
10	Nut	ASTM A194 8M
11	Yoke	ASTM A216 WCB