Features .Compact Design .Bolted or Threaded Cover .Perforable or Mesh Lined Stainless Steel Screens .Suitable for Liquid, Gas or Steam .Materials Available in Carbon Steel, Stainless Steel and Monel .Size Ranges from 1/2" through 12"NB .Design & Manufacture: ANSI B16.34 .Face to Face Dimension: Manufacture Standards .Ends Dimension: ASME B16.5, ASME B16.47 .Inspect & Test: API 598