...for Maximum Reliability Below Grade

Clamp-All HI-TORQ 125 couplings have the thickest, strongest shield and the highest torque clamps in the industry.  Clamp-All HI-TORQ 125 couplings have no equal.  They provide maximum strength, resistance to corrosion and shear for below ground applications in expansive soils.  Installation is quick, secure and trouble free.

• HI-TORQ 125 couplings are effective for joining all high-risk DWV piping systems, above or below grade, up to 15 psi (105 kPa) working pressure.

• HI-TORQ 125's thicker shield and flexible rigidity provides maximum strength to maintain alignment and resist shear forces in more demanding below grade applications.

• HI-TORQ 125's worm drive clamps take a full 125 in./lbs. (14N/m) of torque, the highest in the industry without equal.

• HI-TORQ 125 couplings have just two clamps for sizes through 4" (100 mm), four clamps on sizes 5" (125 mm) to 10" (250 mm) and six clamps on sizes 12" (300 mm) and 15" (350 mm) --- for quicker installation.

• HI-TORQ 125 provides maximum performance and reliability:

  1. Shields are 24 gauge type 304, 18-8 chromium nickel stainless steel for exceptional corrosion and shear resistance.

  2. Durable one-piece molded Neoprene gasket features two sets of sealing beads, and a unique interlocking design which centers the sleeve within the housing for easy installation and added stability.

  3. Slotted shield design compensates for mismatched pipe/fitting diameters and maintains alignment.

  4. Worm-drive screws are 305 stainless steel for high corrosion resistance.

  5. Approved to FM 1680 Class I, 15 PSI; Listed by IAPMO - #2189; Refer to the SBCCI Evaluation Report #9488 for Code Compliance;  See BOCA Evaluation Services, Inc.  Research Report No #94-20

High Performance Coupling Specifications

Hubless cast iron soil pipe and fittings shall be joined using HI-TORQ 125 couplings, manufactured by Clamp-All, for all storm and sanitary drain, waste & vent systems above and below grade.

Couplings shall be constructed of type 304 stainless steel with 305 stainless steel worm-drive screws.  The gasket material shall be neoprene and conform to ASTM C-564.