Reasonable price with best delivery time Eccentric steel butterfly valve Forged or Casting Class 150lbs-2500lbs Size from 1 ... longer 5. It has four sealing type: Compound film type, resilient seat type, resilient seat type, "u" type seat Specification: Nominal pressure PN2. ... , vapour, seawater, air with little dust Metal seated butterfly valve have advantage of light weight, cost effective and low ...