Double Chain Clamp
General Information
The Mathey Dearman Double Chain Clamp is a heavy-duty vessel clamp designed for alignment and reforming of pipes and vessels up to 20’ (6 m) in diameter with Schedule 80 wall thickness. Our Double Chain Clamps also align Schedule 80 pipe and heavier when no reforming is required. The extra heavy-duty Jackbars and Main Block provide the brute strength necessary to accomplish even the toughest reforming jobs. Models 10” to 36” through 10” to 54” come with a Level and Support Device. All other models come with a cable hoist. The Double Chain Clamp is available in steel and stainless steel versions and is shipped in a wooden crate.
FEATURES:
PRECISE | Numerous Jackbars provide clamping pressure exactly where needed for perfect alignment
TOUGH | Reforms and aligns pipe with Schedule 80 wall thickness
ADAPTABLE | Fits extremely large range of pipe diameters
CONFORMING | Jackbar pads pivot independently to handle uneven pipe and fitting surfaces
Joints on large pipe or tube shells up to 20’ (6096 mm) in diameter can be aligned, reformed and welded without removing the clamp, saving time and improving weld quality.
Universal Chain Clamp Includes:
(2) Nickel plated or stainless steel high-strength leaf chains
Extra heavy-duty stainless steel Jackbars-quantity as listed in specifications
Double chain Main block with (2) Fine Adjustments
Level and Support Device (D251-1060 model and larger supplied with cable hoist)
Jackscrew Wrench
Parts and Operating Manual
***PRODUCT IMPROVEMENT*** All (D251 Series) Double Chain Clamps will now come with a set of Magswitch on/off magnets to allow for more safe and efficient setup of the clamps.
Specifications
*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.
WARNING: DOUBLE CHAIN CLAMPS 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.
NOTE: ALL DOUBLE CHAIN CLAMPS WITH 16 OR MORE JACKBARS INCLUDE CABLE HOIST. SMALLER CLAMPS INCLUDE LEVEL AND SUPPORT DEVICE.
