The right choice of their own butterfly valve 9 methods

There are many kinds of butterfly valves, users need to select the butterfly valve according to the specific use of the butterfly valve, the first thing to be clear is the diameter of the pipeline, according to the pipeline needs to clear the discharge capacity of the butterfly valve, can allow the flow resistance, the diameter of the valve seat hole and so on, and choose the appropriate material according to the temperature of the pipeline.

1, the need for flow regulation, can choose worm gear and worm drive, pneumatic or electric with V-shaped opening adjustment butterfly valve.

2, oil, natural gas transmission main line, need to clean the pipeline, and buried in the ground, the selection of full diameter, all welded structure of the butterfly valve; Buried on the ground, choose full diameter welded connection or flange connection of the butterfly valve; Branch pipe, flange connection, welding connection, full diameter or reduced diameter butterfly valve.

3, metallurgical system, power system, petrochemical device, urban heating system in the high temperature medium pipeline system or device, can choose metal to metal sealing butterfly valve.

4, refining unit catalytic cracking unit pipeline system, can choose lifting rod type butterfly valve.

5, the transmission pipeline and storage equipment of product oil, the use of flanged butterfly valve.

6. In the oxygen piping system of the metallurgical system, the fixed ball butterfly valve with flange connection should be selected after strict degreasing treatment.

7, chemical system of acid, alkali and other corrosive media device and piping system, should choose austenitic stainless steel manufactured, PTFE valve seat sealing ring stainless steel butterfly valve.

8, city gas and natural gas pipeline, the selection of flange connection and internal thread connection of the floating butterfly valve.

9, low temperature medium piping system and device, should be selected with the low temperature butterfly valve cover.