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ABOUT HUBS AND CLAMPS |
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Provided
links give access to illustrations and/or additional information. |
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Clamp installation instructions |
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You may install a WOODCO USA clamp in any orientation desired. Prior to installation of the clamp, clean and lubricate the tapered contact surfaces of the hubs and the clamp with extreme pressure grease. Coated bolts and nuts do not require lubrication. Keep clamp halves matched and turned so that all marking appears on the same side of the clamp. When installing, keep the spacing between the clamp halves approximately equal. Put the bolts, nuts, and washers in place and arranged as shown below. Perform the tightening of the nuts so as to draw the clamp together evenly on each side. Tighten fluoropolymer coated bolts to the recommended bolt torque. To obtain the bolt torque for a particular clamp, identify the clamp by it's number designation and select this clamp number on the WOODCO USA Clamp Slide Rule Program. Confirm make up on API Spec 16A hubs using RX and BX ring gaskets by observing, through the gaps, that the hub faces have come into contact. Note: Older style hubs using RX ring gaskets will have stand-off between the hubs. This stand-off will equal the stand-off between API 6B flanges sealed with the same RX gasket. After make up, clearance between the hub neck O.D. and the clamp I.D. should appear uniform. Excessive torque to achieve make up indicates some problem with fit or finish (rust on clamp or hub mating surfaces can result in difficulty during make up). Protect the mating surfaces of hub connections and clamps in the same manner as ring grooves when not in use. Clamps or clamp hubs, if allowed to rust, lose their dimensional accuracy and finish and may become unusable. See Inspection and Storage of API Clamp Hub Equipment. |
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WOODCO USA provides Web Site Tools for identification, estimating, and reference only. Do not use this information for manufacturing or inspection. Users of these tools should not use them as a substitute for professional engineering advice. Anyone making use of the information presented does so at his own risk and assumes any and all liability resulting from such use. FOR FURTHER INFORMATION, OR TO LEARN MORE ABOUT WOODCO USA PRODUCTS AND SERVICES, CONTACT: WOODCO USA |
