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WHERE THERE'S PIPE, THERE'S MATHEY
Dearman Sleeve Clamp
Parts & Operating Manual
HEAVY DUTY SLEEVE CLAMP
STANDARD SLEEVE CLAMP
Revised: 3/2016
P. O. Box 472110, Tulsa, OK 74147-2110 USA
Toll Free: 800-725-7311
918-447-1288 Office
918-447-0188 Fax
www.mathey.com
MODEL # ______________________
SERIAL # ______________________
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Summary of Contents for Mathey Dearman DB-724
- Page 1 WHERE THERE’S PIPE, THERE’S MATHEY Dearman Sleeve Clamp Parts & Operating Manual HEAVY DUTY SLEEVE CLAMP STANDARD SLEEVE CLAMP Revised: 3/2016 P. O. Box 472110, Tulsa, OK 74147-2110 USA Toll Free: 800-725-7311 918-447-1288 Office 918-447-0188 Fax www.mathey.com MODEL # ______________________ SERIAL # ______________________...
- Page 2 Operation of this equipment should be in accordance with the instructions provided in this manual. No Mathey Dearman equipment should ever be used in a manner other than as described in this manual. Operators should wear approved PPE at all times while using this equipment. PPE includes hard hat, ANSI approved eye protection, gloves, steel toe boots and protective clothing.
- Page 3 Pressure required to clamp the pipe sleeves to the outside diameter of the pipe will vary depending on pipe diameter, pipe wall thickness, and tensile strength of the pipe sleeve. If in doubt with regards to the necessary clamping requirements, contact Mathey Dearman Inc. at (800) 725‐7311.
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Page 4: Table Of Contents
Table of Contents Safety Warranty Warnings 1.0 Publications 2.0 General Description 3.0 Work Instruction 4.0 Storage 5.0 Recycling of Components 6.0 Maintenance APPENDIX: A APPENDIX: B pg. 4... -
Page 5: Warranty
WARRANTY INFORMATION For Warranty Information visit www.mathey.com pg. 5... -
Page 6: Safety
Mathey Dearman at 1-800-725-7311 or 1-918-447-1288. WARNING: Do not use any hand pump other than the D106-Kit with the DB-724, DB-724SS, DB- 748, or DB-748SS. Doing so can lead to damage to the device, pipe, sleeves, and serious injury and/or death. -
Page 7: Publications
PUBLICATIONS – • Refer to the following standards or their latest revisions for more information: OSHA, SAFETY AND HEALTH STANDARDS, 29CFR 1910, obtainable from the Superintendent of Documents, U.S. • Government Printing Office, Washington, D.C. 20402 ANSI Standard Z49.1, SAFETY IN WELDING AND CUTTING, obtainable from the American Welding Society, 550 N.W. •... -
Page 8: General Description
The purpose of the Dearman Sleeve Clamp is to clamp a variety of pipe sleeves to the outside diameter of a pipe. The Dearman Sleeve Clamp is available in a Standard models (DB-724 & DB-748), as well as a Heavy Duty models (DC-724 and DC-748). - Page 9 Mathey Dearman (at 1-800-725-7311 or 1-918-447-1288) with any questions. WARNING: Under no circumstances should additional chain be added to the Mathey Dearman Sleeve Clamp to increase its operating range without contacting Mathey Dearman at 1-800-725-7311 or 1-918-447-1288. Figure 1: Standard Dearman Sleeve Clamp Components Figure 2: Heavy Duty Dearman Sleeve Clamp Components pg.
- Page 10 Pump Kit Qty. – 1 Required Qty. – 1 Qty. – 1 Qty. – 1 Qty. – 1 Qty. – 1 Qty. – 1 STANDARD SLEEVE CHAIN CLAMP DB-724 DB-100 DB-300 6 1/2 DB-301 DD-200 DB-702 DB-703 DB-704 D106-KIT D862...
- Page 11 (Note: The different chain materials are not captured by this picture. It merely illustrates the difference between a DB chain and a DC chain). Table 4: Chain and Connecting Links Corresponding To Each Sleeve Chain Clamp Connecting Standard Chain Clamp Chain Link DB-300 DB-301 DB-724, DB-748 DB-300S DB-301S DB-724SS, DB-748SSS DC-300 DC-301 DC-724, DC-748 DC-300S DC-301S DC-724SS, DC-748SS...
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Page 12: Work Instruction
Consult with the safety team for the appropriate number of sleeve chain clamps to use on a given pair of pipe sleeves. Mathey Dearman recommends a minimum number for a given sleeve length below in Table 6, equally spaced from each other and the ends of the sleeves. - Page 13 Mathey Dearman Sales at (918) 447-1288 or (800) 725-7311. If the Dearman Sleeve Clamp is either a DB-724, DB-724SS, DB-748, or DB-748SS model, verify that the hand pump is the D106‐KIT (rated to 5,000 psi, 344 bar). The hand pump on the D106-KIT will be clearly marked.
- Page 14 4. Verify the reservoir to the hydraulic cylinder is closed off by turning the pressure relief valve clockwise until it stops (see Figure 8). If it has not been closed off, hold the hydraulic hose vertical (with the open connector pointing up) while the reservoir is open, allowing the hydraulic fluid to drain back into the reservoir.
- Page 15 Installation 1. Verify that the lifting and/or retention device for the sleeves is still properly engaged before proceeding. 2. Allow the hydraulic cylinder to hang down; place the main block on top of the top sleeve, as illustrated in Figure 9. Figure 9: Main block placement Crush / Pinch Hazard: From this step forward, crush and pinch hazards exist at: point where roller chain contacts the repair sleeve...
- Page 16 3. Pull the hydraulic cylinder underneath the pipe, and wrap around the pipe/lower half of the sleeve, placing the cylinder in the main block such that the cylinder/piston head is resting in its engagement position (see Figure 10). Figure 10: Cylinder position after Step 3 4.
- Page 17 5. Pull the free end of the lifting chain through the main block until the slack between the chain and the sleeves has been removed as illustrated in Figure 12. Do not remove the sleeve lifting and retention device yet. Figure 12: Removing Excess Chain Slack For the heavy duty sleeve chain clamp, ensure the safety pin to the DC-100 main block is in place before proceeding.
- Page 18 6. Attach included safety whip check onto hydraulic connection on cylinder. Ensure the rubber ring on the safety whip check is positioned tight against the loop. Figure 14: Safety Whip Check added to Hydraulic Cylinder 7. Attach safety whip check to hand pump hose. Ensure the rubber ring on the safety whip check is positioned tight against the loop.
- Page 19 Operation 1. On each of the Dearman Sleeve Clamps, pump the handle on the hand pump assembly until the chain pulls tight and the cylinder visually indicates it has started to extend its ram. 2. Hold for 30 seconds. Visually check for hydraulic leaks before proceeding further. If leaks exist, open up the hydraulic reservoir on the hand pump to relieve the pressure and investigate further.
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Page 20: Storage
4.0 – STORAGE • Store the Dearman Sleeve Clamp in a clean, dry, and safe environment. • Use the provided storage box if all possible to prevent damage to any of the components. • Do not lay the chain clamp portion of the sleeve clamp on top of any hydraulic component (Hand Pump, Hydraulic Cylinder, Hydraulic Hose, and Pressure Gauge if installed). - Page 21 APPENDIX: A Optional Hand Pump Assembly with Gauge Kits pre‐assembled: Hand pump Model* Assembly w/ Gauge DB-724 D106G-KIT DB-724SS 5K PSI DB-748 (344 bar) DB-748SS DC-724 D105G-KIT DC-724SS 10K PSI DC-748 (689 bar) DC-748SS * ‐G variants of each model exist, in which the D105G‐KIT / D106G‐KIT are already included Optional Add‐on Gauge Kits to existing Hand Pump Assembly:...
- Page 22 APPENDIX: B Safety Whip Check Information Safety Whip WLL @ 7:1 SF Clamp Check 1,150 PSI DB-7XX, DB-7XXSS D101.09 DC-7XX, DC-7XXSS (79 bar) Working Load Limit (WLL) Information: Variables: 1/4” Hose (0.540” OD) 0.119” WT 10,000 PSI MAWP (689 bar) Max Allowable Pressure according to ANSI B31.3-2008: 15,762 PSI (1086.8 bar) Parting Strength (Based on the variables above): 1,129 LBS (77.84 bar) *Parting strengths were calculated using ANSI B31.3-2008...
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