Description
Our Double Chain Clamps also align Schedule 120 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 120 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
- 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
| Model | Description | Pipe Size Range in (mm) | Est. Shipping Weight |
| D251-1036 | Double Chain Clamp | 10-36 (254-914) | 106 lbs / 92.7 kg |
| D251-1036SS | Double Chain Clamp – Stainless Steel | 10-36 (254-914) | 106 lbs / 92.7 kg |
| D251-1048 | Double Chain Clamp | 10-48 (254-1219) | 264 lbs / 118.8 kg |
| D251-1048SS | Double Chain Clamp – Stainless Steel | 10-48 (254-1219) | 264 lbs / 118.8 kg |
| D251-1054 | Double Chain Clamp | 10-54 (254-1372) | 286 lbs / 128.7 kg |
| D251-1054SS | Double Chain Clamp – Stainless Steel | 10-54 (254-1372) | 286 lbs / 128.7 kg |
| DC-400 | Level and Support Device (Carbon) | Not included Order seperately | 14 lbs. / 6.3 kg |
| DC-400SS | Level and Support Device (Stainless Steel) | Not included Order seperately | 14 lbs. / 6.3 kg |
| 251-1060 | Double Chain Clamp | 10-60 (254-1524) | 328 lbs / 14 kg |
| D251-1060SS | Double Chain Clamp – Stainless Steel | 10-60 (254-1524) | 328 lbs / 149 kg |
| D251-1072 | Double Chain Clamp | 10-72 (254-1829) | 387 lbs / 174 kg |
| D251-1072SS | Double Chain Clamp – Stainless Steel | 10-72 (254-1829) | 387 lbs / 174 kg |
| D251-1084 | Double Chain Clamp | 10-84 (254-2134) | 442 lbs / 199 kg |
| D251-1084SS | Double Chain Clamp – Stainless Steel | 10-84 (254-2134) | 442 lbs / 199 kg |
| D251-1096 | Double Chain Clamp | 10-96 (254-2438) | 498 lbs / 224 kg |
| D251-1096SS | Double Chain Clamp – Stainless Steel | 10-96 (254-2438) | 498 lbs / 224 kg |
| D251-10108 | Double Chain Clamp | 10-108 (254-2743) | 554 lbs / 249 kg |
| D251-10108SS | Double Chain Clamp – Stainless Steel | 10-108 (254-2743) | 554 lbs / 249 kg |
| D251-10120 | Double Chain Clamp | 10-120 (254-3048) | 610 lbs / 275 kg |
| D251-10120SS | Double Chain Clamp – Stainless Steel | 10-120 (254-3048) | 610 lbs / 275 kg |
| D251-1011F | Double Chain Clamp | 10-132 (254-3353) | 660 lbs / 297 kg |
| D251-1011FSS | Double Chain Clamp – Stainless Steel | 10-132 (254-3353) | 660 lbs / 297 kg |
| D251-1012F | Double Chain Clamp | 10-144 (254-3658) | 710 lbs / 320 kg |
| D251-1012FSS | Double Chain Clamp – Stainless Steel | 10-144 (254-3658) | 710 lbs / 320 kg |
| D251-1014F | Double Chain Clamp | 10-168 (254-4267) | 810 lbs / 365 kg |
| D251-1014FSS | Double Chain Clamp – Stainless Steel | 10-168 (254-4267) | 810 lbs / 365 kg |
| D251-1016F | Double Chain Clamp | 10-192 (254-4877) | 910 lbs / 410 kg |
| D251-1016FSS | Double Chain Clamp – Stainless Steel | 10-192 (254-4877) | 910 lbs / 410 kg |
| D251-1018F | Double Chain Clamp | 10-216 (254-5486) | 1010 lbs / 455 kg |
| D251-1018FSS | Double Chain Clamp – Stainless Steel | 10-216 (254-5486) | 1010 lbs / 455 kg |
| D251-1020F | Double Chain Clamp | 10-240 (254-6096) | 1110 lbs / 500 kg |
| D251-1020FSS | Double Chain Clamp – Stainless Steel | 10-240 (254-6096) | 1110 lbs / 500 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.
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.