Gate Valves or Parallel Gate Valves are designed for drilling mud manifold and high-pressure pipelines. Gate Valves are forged from high quality alloy steel with heat treatment as per API 6A and NACE MP0175.requirement, seal surface of plate are welded with chromium for corrosion. Gate Valves are available in flange end connection and union end connection from 21/16in～41/16in O.D. with working pressure 10000psi (72MPa), and the material level is from AA to FF.