ZFV PN64 flanged triple eccentric butterfly valve with metal seated sealing, PN64-DN250. These are the European standard butterfly valves manufactured by ZFV, flanged and three eccentric metal seated hard seal structures. Valve body material CF8M, disc material CF8M, sealing material is SS316+Graphite, RF flange. Reference standard of our production is: 

Design and manufacture:EN 593

Face-to-face:EN 558

Flanged ends:EN 1092-1

Inspection and test: EN 12266-1

EN standard is the European standard,Zhengfeng valve is a professional manufacturer for triple eccentirc butterfly valve.We can produce three eccentric multi layer metal hard seal and three eccentric soft sealing structure butterfly valve. Generally speaking,metal sheet and graphite laminated, metal steel sheet include 304 316 316L, S31803 and so on. Soft sealing is usually PTFE,RPTFE,NBR, EPDM, etc..The connection ways are flange type,wafer type,lug type, welding type and so on. Pressure of production specifications DN40-2000, PN6-150,150LB-900LB, NPS2-80. Product design and production in strict accordance with the design standards, Our production of three eccentric structure butterfly valve sealing performance can reach VI or A-level, which is called the standard