Butterfly Valve
Overview
Butterfly valve is a kind of valve that uses disc type opening and closing parts to turn back and forth about 90° to open, close and adjust the fluid passage. Butterfly valve not only has simple structure, small size, light weight, low material consumption, small installation size, small driving torque, easy and fast operation, but also has good flow regulation function and closing and sealing characteristics at the same time. One of the fastest growing valve varieties. Especially in industrialized countries such as the United States, Japan, Germany, France, and Italy, butterfly valves are widely used, and the variety and quantity of them are still expanding, and they are developing to high temperature, high pressure, large diameter, high sealing, long life, Excellent adjustment characteristics and multi-functional development of a valve, its reliability and other performance indicators have reached a high level, and have partially replaced globe valves, gate valves and ball valves. With the advancement of butterfly valve technology, butterfly valves will become the dominant valve form in the foreseeable short period of time, especially in the field of medium and low pressure applications of large and medium-sized ports.
Product composition
Product introduction
Features ·
· Fully rubber-lined valve body design
· Through shaft without pin, arc valve plate
· Two-way pressure bearing, two-way sealing
· Stem triple seal
· A variety of material configurations, application of different media
Overview application
· Centerline rubber-lined media valves are widely used in power, metallurgy, chemical, food, municipal, and electric power systems as cut-off or regulating devices for liquid, gas, and semi-fluid pipelines, such as wet desulfurization, water treatment, fire protection, and municipal piping etc.
Technical Parameters
· Nominal diameter, DN50-DN3000(2"-120")
· Pressure rating: PN6-PN16(clss150)
· Working temperature: 20°C-200C , connection method: clip, lug, flange
Main material
· Valve body: ductile iron, carbon steel, stainless steel
· Valve plate: ductile iron, stainless steel, duplex steel, alloy steel, etc.
· Seats: EPDM, NBRVITON, etc.
Double eccentric high performance butterfly valve
Features
· Adopt IS05211 standard top flange
· Integral valve stem, online pre-tightening packing
· The sealing surface has small friction, low torque and low wear
· One-way seal and two-way seal two sealing options
· High pressure resistance, corrosion resistance, wear resistance, long service life
· Applicable to working conditions such as frequent switching, vacuum and high vacuum
· Two-way full differential pressure level VI seal
Overview application
· Double eccentric butterfly valve is a long-life, energy-saving butterfly valve. Its structure is designed on the principle of eccentricity; it is widely used in pipelines with corrosive media such as metallurgy, electric power, petroleum, chemical industry, air, gas, combustible gas, and water supply and drainage, such as seawater desalination, air separation, high and medium pressure condensate, gas Wait for working conditions.
Technical Parameters
· Nominal diameter, DN50-DN1600(2"-64")
· Pressure rating: PN6-PN100(class150-600)
· Working temperature: ~200°C
· Connection method: lug, flange, clip
Main material
· Valve body: carbon steel, stainless steel
· Valve plate: carbon steel, stainless steel Seat: R-PTFE, PPL, stainless steel
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