简要说明：KW牌的DEMCO型蝶阀产品：估价：200，规格：NEC71X-200PSI，产品系列编号：齐全

NEC Wafer butterfly valves (Pinless)       

Suitable for ASME CLASS150 flange

Standard: API609, API598

Sizes available: 2" - 12"

Features:

Long neck , bi-direction sealing, integral flange seal, pinless disc, one-piece

body, blowout proof stem,10-position locking handle/ gear operated

Body:Epoxy coated cast iron/ductile iron, carbon steel, stainless steel

Disc:Ductile iron nickel plated, aluminum bronze,  304SS, 316SS

Stem:416SS, 316SS, Monel

Seat: NBR, EPDM, Viton,  Hypalon     

Chemical and petrochemical      

Oil and gas drilling and production      

Water and waste water    

Marine and government       

Power      

Agriculture       

Mining and materials

Dry bulk handling