双重把蝴蝶阀门

Double Flanged Butterfly Valve Features: 1) Small size and light weight, easy installment and maintenance 2) Simple and compact structure, quick 90-degree on and off operation, minimized torque, energy saving 3) Long usage life, standing tens of thousands of opening / closing operation testing 4) Flow curve tending to be a straight line, excellent regulation performance 5) Bubble tight sealing without leakage under the pressure test 6) A wide selection of materials, applicable for various liquids Inner packing: carton Outer packing: wooden case