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

NEC Lug 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