Butterfly valve is used for isolating or regulating flow and its function allows for quick shut off. There are many different kinds of butterfly valves, each adapted for different pressures and different usage in the industry.
End flange: ANSI b 16.1, ASTM b 16.47, en 1092, as 2129, ISO pn10/16, JIS b2212/2213, bs 10 table d, bs 10 table e, bs4504
Face to face: ANSI b 16.10, API 609, bs5155 short, ISO5752(series 13), DIN3202 f16
Top flange: ISO 5211
Normal pressure: DN40-DN600(1.5"-24") PN1.0/1.6mpa(150/200psi) DN700-DN1200(28"-48") PN1.0mpa(150psi)
Body: Cast iron/ductile iron/wcb/carbon steel/al-bronze/CF8, ss304/CF8m, ss316
Disc: Ductile iron/ni-plated ductile iron/nylon-plated ductile iron/al-bronze/rubber lined disc/1.2501/1.4529/CF8/CF8m/hastelloy alloy/monel
Stem: Ss416/ss304/ss316/ss431/17-4pH/monel/carbon steel 45/45#
Seat: NBR/hypalon/EPDM/neoprene/nr/wear-resistant EPDM/viton/silicon/heat-resistant EPDM/white EPDM/EPDM/PTFE
Suitable temperature: Normal temperature -45 - 150
Medium: Fresh water, Sewage, Sea water, Air, Vapor, Medicine, Oil, etc
1.These products are mainly used for pipeline flow, pressure and temperature control of various industrial automation producting, for example: Electricity, petrifaction, metallurgy, environmental protection, energy management, fir-fighting systems.
2.Simultaneously they have good fluid control properties, and can operate simply.
3.They are not only widely used in general industries as petroleum, coal gas, chemical engineering, water treatment, but also used in the cooling water system of thermal power plant.