Single Jackscrew Chain Clamp

Single Jackscrew Chain ClampThe Single Jackscrew Chain Clamp reforms the mating side of the weld gap and is capable of reforming up to Schedule 40 pipe.* Each jackbar is equipped with its own jackscrew to exert pressure on the high points of the mating pipe, eliminating “Hi-Lo” as pipe and fittings are aligned. Pipe with wall thickness to Schedule 80 can be aligned with the Single Jackscrew Chain Clamp.* The Level and Support Device of the Chain Clamp allows elbows, tees, flanges and other fittings to be held safely and securely for alignment and welding. The Single Jackscrew Chain Clamp is available in nickel plated carbon steel chain and stainless steel chain versions to fit pipe from 1” to 54” (25 mm to 1372 mm) in diameter. Although all Mathey Dearman Chain Clamps feature stainless steel Jackscrews, Jackbars and Main Blocks, stainless steel chain should always be used for stainless steel and specialty alloy applications to avoid potential contamination.

FEATURES:

  • ACCURATE | Aligns within 1/64" (.4 mm) of an inch
  • HEAVY DUTY | Aligns pipe with wall thickness to Schedule 80
  • STRONG | Reforms mating pipe with wall thickness to Schedule 40
  • SAFER | Level and Support Device holds fittings safely and securely
  • VERSATILE | Aligns and reforms pipe, elbows, tees and other fittings

BENEFITS:

  • One Chain Clamp covers the range of 8 cage clamps
  • Pipe and fittings can be fully welded with clamp in place
  • Jackscrew contact points swivel to protect against marring the pipe
  • Optional Spacing Screws available to assist in setting weld gap
  • An add-on Jackbar can be added when additional reforming pressure is need.

Single Jackscrew Chain Clamp Includes:

  • Nickel plated carbon steel or stainless steel duplex roller chain
  • Stainless steel Single Jackscrew Jackbars, quantity as indicated in specifications
  • Stainless steel Main Block
  • Stainless steel Level and Support Device
  • Jackscrew Wrench
  • Heavy-duty Storage Box
  • Parts and Operating Manual

Specifications

Model Number of Jackbars Nominal Pipe Size Range in (mm) Reforms Pipe to Schedule* Aligns Pipe to Schedule Est. Shipping Weight
D231
3
1-8 (25-203) 40 80 21 lbs / 9 kg
D231SS
3
1-8 (25-203) 40 80 21 lbs / 9 kg
D232 7 4-16 (102-406) 40 80 68 lbs / 31 kg
D232SS 7 4-16 (102-406) 40 80 68 lbs / 31 kg
D233 8 10-36 (254-914) 40 80 144 lbs / 67 kg
D233SS 8 10-36 (254-914) 40 80 144 lbs / 67 kg
D234 13 10-54 (254-1372) 40 80 170 lbs / 79 kg
D234SS 13 10-54 (254-1372) 40 80 170 lbs / 79 kg

*Calculations are based on pipe with a tensile strength of 45,000 lbs per square inch / 3,164 kg per square centimeter

SS - Indicates clamp includes stainless steel chain. All clamps equipped with stainless steel Jackbars, Jackscrews, and Main Blocks.

NOTE: MATHEY DEARMAN CHAIN CLAMPS CAN BE RECONFIGURED FOR STAINLESS STEEL AND OTHER SPECIALTY ALLOY APPLICATIONS. REPLACE THE CARBON STEEL ROLLER CHAIN WITH STAINLESS STEEL CHAIN. (ALL OTHER COMPONENTS OF CHAIN CLAMPS ARE MADE OF STAINLESS STEEL)

THE SINGLE JACKSCREW CHAIN CLAMP SHOULD NEVER BE USED AS THE SOLE SUPPORT FOR THE PIPE OR TO LIFT THE PIPE. DO NOT EXCEED PIPE SIZE RANGE LISTED OR USE ANY TYPE OF CHAIN OTHER THAN SUPPLIED WITHOUT FIRST CONTACTING THE MATHEY DEARMAN SALES DEPARTMENT. USE OF CHAIN NOT SUPPLIED WITH THE CLAMP BY MATHEY DEARMAN WILL VOID THE CLAMP WARRANTY.