The use of butterfly valve selection criteria

Use of butterfly valve selection criteria 1, suitable for larger diameter valves (such as DN600 and above) 2, the structure of the short length of the occasion should use a butterfly valve 3, should not be used for high temperature and pressure piping systems, generally used in ≦ 80 degrees, ≦ 1.0Mpa crude oil, oil, water and other media. 4, due to the butterfly valve relative to the gate valve, the ball valve pressure loss is relatively large, so the butterfly valve is not suitable for pressure loss in the pipeline system 5, the need for flow control in the pipeline should be used in 6, opening and closing fast requirements occasions In the choice of butterfly valve 7, usually in the throttling control and mud medium, requiring short structural length, opening and closing speed, low pressure cutoff (pressure difference is small) is recommended to use butterfly valve 8, adjustable in both places, narrow mouth channel, low noise , A gasification phenomenon, a small amount of leakage to the atmosphere, with corrosive media, optional butterfly valve. In special circumstances, throttling regulation, or require strict sealing, or severe wear and tear, cryogenic (cryogenic) conditions such as the use of butterfly valves, the use of special design metal seal adjustment device of tri-eccentric or double eccentric butterfly valve.

Flap Disc Making Machine

New generation full automatic Flap Disc machine adopts brand new design concept,many parts were optimized compared with former generation,the whole structure is more precise and more stable, thus flap disc stability and durability is effectively improved. full automatic flap disc machine can automatically upload backing,detect backing,quantitatively feeding,flap cutting and setting, shaping and automatically download finished flap discs with high automation. Flap disc quality is very good and under control.


Main Features
A. Head System
â‘  Using lift model to ensure that the product defect rate less than 1%~2%
â‘¡ Using Head tilt operation to finish T29 type producing
â‘¢ When converting different types of products can be achieved quickly adjusted conversion.
â‘£ Muted effect,low noise and vibration,excellent durability,the worker operation improved,environment has been greatly improved.
⑤ An inspection system to prevent an erroneous operation.
â‘¥ High utilization of emery cloth strips.
B. Turntable System
Each Pallet smooth transition fast, precise positioning,good durability.
C. Gluing System
â‘  Smart thermostat water circulation system.For adhesive road achieve comprehensive heating.In order to get better performance of the glue,ensure the stability of setting abrasive sheets.
â‘¡ Gluing system with the last design,ensure accuracy of the glue volume,consistency and durability,the stability of product quality is guaranteed.
D. Convey Machine
All intelligent automatic feeding,feed off,abrasive cloth roll can be change quickly and easily.


The related abrasive products we can supply is Flap Disc Adhesive , Bonded Abrasives ( Cutting Wheels and Grinding Wheels ), Abrasive Sanding Disc, Flap Disc Backing Pad and Abrasive Flap Disc, if you have any needs about abrasive tools, please kindly feel free to contact us.

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Zhengzhou Jiading Abrasive Manufacturing Co.,Ltd , https://www.jd-abrasives.com