* API602, BS5352 steel wedge check valve design. * Swing type code : FS-1500, Piston type code : FP-1500 * Bolted Bonnet is standard, square forged bonnet. * Body seal for class 1500 is SS304 + Graphite material. * Welding Bonnet is optional, with round forged bonnet. * Terofox uses High Pressure Sealing for forged valve on pressure class 1500 and class 2500. * Valve Nameplate on the top of bonnet space * Material from forged carbon steel, stainless steel, dual-material such as F304/F304L, special material are all available. * Uni-directional flow path. * NACE MR0175 is our standard on A105 material
ASTM A105N