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Rim Clamps - for Tough Reforming Jobs
Mathey Dearman Rim Clamps  

Rim Clamp Includes:
• Clamp frame
• Required number of jackscrews for the clamp size
• Flip-Up jackbars for mating pipe
• Stabilizer bars
• Level and support device attachment point
• Clamp wrench
• Parts and operating manual


Jackscrews apply pressure on specific high points to precisely reform and align the pipe or shells. Ideal for applications that require 100% weld and grind without releasing clamping pressure to prohibit cracking of partially completed welds.

The clamp can also be used to round the pipe or shell on which it is placed. All surfaces of the Rim Clamp that contact the pipe are made of stainless steel so that this clamp can be used for nuclear and other similar applications. 

The Clamp will reform 45,000psi tensile strength pipes up to Schedule 80, with out-of-round conditions up to 2" (51mm).


FEATURES:
• EXTREMELY ACCURATE fit-up on large diameter pipe or shells.
• Hi-Lo—Handles out-of-round conditions up to 2" (51mm).
• EASY ALIGNMENT AND REFORMING—Pressure can be applied to the high point of the pipe or vessel to reform it to the required shape.
• VERSATILE—The clamp can be used for steel or stainless steel applications.

NOTE: Please provide us with the following information in order to specify the Rim Clamp for your application.
1. Pipe diameter (inches or millimeters)

2. Pipe wall thickness (inches or millimeters)

3. Pipe tensile strength or type material

4. Horizontal or vertical application

5. Ambient temperature

PART NUMBER

PIPE SIZE
RANGE
(in / mm)

REFORMS PIP
TO SCHEDULE*

ALIGNS PIPE
TO SCHEDULE

DIMENSIONS
(in / mm)

EST. SHIPPING WT.
(lbs / kg)

D711-0406

4-6 / 102-152

80

120

18 x 18 x 11 1/2 /
457 x 457 x 292

40 / 18

D711-0608

6-8 / 152-203

80

120

18 x 18 x 11 1/2 /
457 x 457 x 292

50 / 23

D711-0810

8-10 / 203-254

80

120

23 x 23 x 12 1/ 2 /
584 x 584 x 318

70 / 32

D711-1012

10-12 / 254-305

80

120

23 x 23 x 12 1/ 2 /
584 x 584 x 318

90 / 41

D711-1214

12-14 / 305-356

80

120

34 x 32 x 12 /
864 x 813 x 305

120 / 54

D711-1416

14-16 / 356-508

80

120

40 x 48 x 20 /
1016 x 1219 x 508

190 / 86

D711-1618

16-18 / 406-457

80

120

40 x 48 x 20 /
1016 x 1219 x 508

240 / 108

D711-1420

14-20 / 356-508

80

120

40 x 48 x 20 /
1016 x 1219 x 508

280 / 126

D711-1824

18-24 / 457-610

80

120

40 x 48 x 20 /
1016 x 1219 x 508

350 / 158

D711-2026

20-26 / 508-660

80

120

40 x 48 x 20 /
1016 x 1219 x 508

360 / 162

D711-2228

22-28 / 559-711

80

120

40 x 48 x 20 /
1016 x 1219 x 508

380 / 171

D711-2632

26-32 / 660-813

80

120

44 x 48 x 20 /
1118 x 1219 x 508

400 / 180

D711-3036

30-36 / 762-914

80

120

44 x 48 x 20 /
1118 x 1219 x 508

420 / 189

D711-3440

34-40 / 864-1016

80

120

54 x 54 x 20 /
1372 x 1372 x 508

450 / 203

D711-3844

38-44 / 965-1118

80

120

58 x 58 x 20 /
1473 x 1473 x 508

490 / 221

D711-4248

42-48 / 1067-1219

80

120

62 x 62 x 20 /
1575 x 1575 x 508

510 / 230

D711-4450

44-50 / 1118-1270

80

120

62 x 62 x 20 /
1575 x 1575 x 508

610 / 275

D711-4652

46-52 / 1168-1321

80

120

62 x 62 x 20 /
1575 x 1575 x 508

610 / 275

D711-5056

50-56 / 1270-1422

80

120

70 x 41 x 24 /
1778 x 1041 x 610

680 / 306

D711-5460

54-60 / 1372-1524

80

120

74 x 42 x 24 /
1880 x 1067 x 610

750 / 338

D711-5864

58-64 / 1473-1626

80

120

78 x 45 x 24 /
1981 x 1168 x 610

820 / 369

D711-6268

62-68 / 1575-1727

80

120

84 x 47 x 24 /
2134 x 1194 x 610

880 / 396

D711-6672

66-72 / 1676-1829

80

120

86 x 49 x 24 /
2184 x 1245 x 610

950 / 432



Clamp Type

Pipe Tensile
Strength

Material

Pipe Diameter

 

PSI

Mpa

 

4"-12"

14" - 24"

32" - 48"

50" - 60"

62" - 72"

STD

45,000

310

X45

1/2"

3/4"

1"

1 1/8"

1 1/4""

 

 

 

 

Pipe Wall Thickness





RIM CLAMP ACCESSORIES

 

Assembly/Parts
Description

Rim Clamp Size
(in / mm)


JACKBARS

DR-300

4 - 14 / 102 - 356

DR-700

14 - 72 / 356 - 1829


JACKSCREWS

DC-501

4 - 14 / 102 - 356

DR-500

14 - 72 / 356 - 1829


WRENCHES

D900-002 3/4" / 19mm

4 - 14 / 102 - 356

D900-003M 7/8" / 22.2mm

14 - 72 / 356 - 1829


LEVEL & SUPPORT DEVICE

DA-400S*

4 - 8 / 102 - 203

DB-400S*

4 - 20 / 102 - 508

DC-400

18 - 72 / 457-1829

DC-400S*

18 - 72 / 457 - 1829


*Stainless steel

 

 



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