Support vertical pipe at each floor. The riser clamp bolts around a vertical pipe and bears on the floor slab or structural steel, carrying the pipe's weight at each story. Electro-galvanized finish, IPS sizing. Two-piece clamp bolts around the pipe Bearing ears rest on the floor slab or structural steel Carries vertical pipe (riser) weight at each floor Electro-galvanized (zinc) coating for general corrosion resistance Manufactured to MSS SP-58 pipe support standards ✔ In Stock — Ships Same Day or Next Business Day✔ Used by contractors and professionals✔ Designed for reliable jobsite performanceOverviewRiser clamps carry the weight of vertical pipe at floor penetrations. Two halves bolt around the pipe and the projecting ears bear on the slab or structural steel, transferring load at each story. Electro-galvanized for general indoor corrosion resistance.Common Uses Supporting vertical pipe risers in multi-story buildings Water, steam, and HVAC risers Commercial and institutional mechanical systems At floor penetrations and structural bearing points Key Features Two-piece bolted design Load-bearing ears Electro-galvanized for general corrosion resistance MSS SP-58 / SP-69 Type 8 Specifications Type Riser Clamp (Empire Fig. 50) Finish Electro-Galvanized Pipe Sizing IPS Standard MSS SP-58 / SP-69 Type 8 Load Ratings by Pipe SizeMaximum recommended load by pipe size, per Empire Fig. 50 engineering data. Match to your pipe's nominal size and apply your project's factor of safety. Pipe Size Max. Rec. Load (lb) 1/2–1-1/2" 255 2" 300 2-1/2" 400 3" 530 3-1/2" 670 4" 810 5" 1,500 6" 1,600 8–10" 2,500 12–14" 2,700 16–30" 2,900 Listings & Standards MSS SP-58 / SP-69 Type 8 UL & ULC Listed (2–8") Competitor Cross-Reference PVF Pro (Empire Fig. 50) Cooper B-Line Tolco Riser / Extension Clamp B3373 6 Cross-reference is for identification only. Cooper B-Line® and Tolco® are trademarks of their respective owners (Eaton), which are not affiliated with or endorsing Empire Industries or PVF Pro. Always confirm fit and load rating for your application.Frequently Asked QuestionsWhat is a riser clamp?It supports vertical pipe (a riser) by clamping around the pipe and bearing on the floor slab or structural steel, carrying the pipe's weight at each floor.What size do I need?Match the clamp to your pipe's nominal size (IPS). Buying in volume? Contact us for contractor pricing or bulk discounts.Fewer reorders. Lower cost per job. Keeps your crew stocked.