Concentric Butterfly Valve

Middle line rubber butterfly valve is widely used in chemical, petroleum, electric power, metallurgy, food and other industries of the pipeline system. In the chemical industry, it is often used to control the flow of corrosive chemicals; In the petroleum industry, it can be used to control the delivery of oil products; In the power industry, it can be used to control the flow of steam and water. In addition, it is also widely used in sewage treatment, water supply and drainage systems, and HVAC systems.

• Compact structure: The center line rubber lined butterfly valve has compact structure design, small space, and is easy to install and use in the pipeline system.

• Good sealing performance: the rubber lining is closely fitted with the seat to form a reliable sealing structure and effectively prevent media leakage.

• Strong corrosion resistance: rubber lining can resist the erosion of a variety of corrosive media, especially suitable for the control of corrosive media in chemical, petroleum and other industries.

• Fast opening and closing: the valve can be opened and closed by rotating the butterfly plate 90 degrees, which is easy and fast to operate.

• Good adjustment performance: By adjusting the rotation Angle of the butterfly plate, the flow rate of the medium can be controlled to achieve accurate flow regulation.

Design Standard:     API 609, EN593

Connection Flange: ASME B16.5,JIS, ISO 7005-2, GOST PN10/16

Top Flange:              ISO 5211

Face to Face:           API 609A, EN558 20 serial

Test Standard:         API 598, EN12266-1

Working Pressure:   CLASS150 CLAS300 JIS10K JIS20K PN10 PN16

Materials:                Body QT450, WCB, CF8, CF8M, CF3, CF3M etc.

                                Disc WCB, CF8, CF8M, CF3, CF3M etc.

                                Seat EPDM, NB, PTFE etc.

Types：                   Lug, Wafer, Flanged