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- 1/2 in Plain Riser Clamp Phd 550
PHD Pipe Riser Clamp, Series: FIG 550, 1/2 in Pipe, 220 lb, 19 ft-lb, Low Carbon Steel, Plain, 9 in L, Domestic
3/8 x 1-1/4 in bolt When possible the clamp should be placed under a coupling, hub or welded lugs on steel pipe Bolt torques should be per industry standards