Detailed performance: butterfly valve features and methods of use

Butterfly valve (butterflyvalve) refers to the closing piece (disc or disc) as a disc, rotating around the valve shaft to achieve a valve on and off, mainly in the pipeline cut off and throttling purposes. Butterfly valve opening and closing pieces is a disc-shaped disc, the valve body around its own axis of rotation, so as to achieve the purpose of opening and closing or regulation. The butterfly valve fully open to the whole is usually less than 90 °, the butterfly valve and the butterfly itself does not have self-locking ability, in order to disc positioning, to install a worm reducer on the stem. The use of worm reducer, not only can make the disc self-locking ability to stop the butterfly plate in any position, but also to improve valve performance. Industrial butterfly valve features high temperature, high pressure range, the valve nominal diameter, the valve body made of carbon steel, the valve ring using a metal ring instead of rubber ring. Large high temperature butterfly valve welded steel manufacturing, mainly for high temperature medium smoke duct and gas pipelines. The advantages of butterfly valves are as follows: 1, quick and easy opening and closing, effort, fluid resistance, you can often operate. 2, simple structure, small size, light weight. 3, you can transport the mud, the liquid accumulated in the pipe port at least. 4, under low pressure, can achieve a good seal. 5, adjust the performance. The shortcomings of the butterfly valve are as follows: 1, the use of pressure and small working temperature range. 2, poor sealing. Butterfly valve can be divided according to the structure of the bias plate, vertical plate, inclined plate and lever. According to the sealing form can be divided into more sealed and hard seal two. Rubber seals are generally used rubber ring seal, hard seal is usually used metal ring seal. According to the connection type can be divided into flange connection and the clamp connection; According to the transmission can be divided into manual, gear transmission, pneumatic, hydraulic and electric several. Butterfly valve installation and maintenance should note the following: 1, the installation, the valve to stop in the closed position. 2, the opening position should be determined by the rotation angle of the disc. 3, with bypass valve butterfly valve, open the bypass valve should be opened before. 4, should be installed according to the manufacturer's installation instructions, the weight of the butterfly valve, should be set up a solid foundation.

Flux Cored Welding Wire Production Line

straight line wire drawing machine

no1, wire drawing machine usage: for the production of high carbon steel wire (steel cord, bead wire, spring wire, wire rope, etc.), stainless steel wire, low carbon steel wire (welding wire, galvanized steel wire, packing wire, nail making wire) , copper (alloy) wire, aluminum (alloy) wire
no2, wire drawing machine features: no reducer, no v-belt, no variable frequency motor; no electricity cabinet
working characteristics: 15% power saving, no accessories, low noisy at any speed ≤ 50db
no3, transportation and installation: designed into triple or quadruple or five-group according to need, it is convenient for transportation. only the aviation plug and quick plug can be connected to realize the whole unit connection of water, electricity and gas. the machine can be installed only by the expansion bolts fixed on the ground; the two machines are installed back to back seamlessly, saving 50% of the site, and the installation of each wire drawing machine is completed within 4 hours.
no4, transmission lubrication: wire drawing machine servo motor self-lubricating, 15 years no oiling
no5, matching: any mode, no need to adjust the electronic control parameters, free jump mode drawing
no6, production: high carbon steel wire, stainless steel wire, low carbon steel wire can be produced freely on the same machine
no7, cooling: the outer edge of the reel covers (servo motor) water tray, no dust and garbage enters the pipeline, cooling system
open, narrow slit water cooling, no fouling, no clogging, maintenance free
no8, speed: speed adjustment, stepless speed change, heavy load low speed, light load high speed, 0~300hz free
frequency operation efficiency is maintained above 95%
no9, servo motor: from China high speed rail group, with more than 10 years of experience of servo motor operation
inspection, ensure that each motor is rigorously tested by the national laboratory, and has a certificate of conformity and test data. the motor is water-cooled (the supplier provides the circulating water tank and condensing equipment at random) and the water temperature online detection and alarm system.
no10, the price: compared with the ordinary wire drawing machine, the price is 30% higher, and the saved electricity cost is recovered in two years.

Flux Cored Welding Wire Production Line,Flux Cored Wire Drawing Machine,Seamless Flux Cored Wire Production Line,Seamless Flux Cored Wire Product Line

Jiangyin Wanyi Machinery CO.,Ltd , https://www.wydrawmachine.com