
Drain Plug / Leak Seal Enclosures & Clamps
- Installs while equipment is energized
- No oil draining from radiator banks
- Removable without permanent modification
WOSB Certified
OSHA-Certified Technicians
ISNetworld Approved
Dresser Coupling Leak Repair Clamps support targeted sealing of leaks in transformer radiator banks, tap changer compartments, oil-filled circuit breaker drain valves, and other substation apparatus. The solution uses a fitted enclosure, set screws, crush teeth, and non-adhering rubber-based sealant to reduce disassembly, avoid draining oil, and help minimise equipment downtime.


A dresser coupling is a mechanical pipe or fitting connection designed to join components and accommodate installation or repair requirements. For leak-repair applications, the relevant solution may be a fitted enclosure or clamp positioned around a leaking drain plug or valve. TDS product information describes an aluminium enclosure secured with set screws and crush teeth, with the void filled using non-adhering rubber-based sealant.
Provide details about the apparatus and leak location for technical review.

Seal transformer and circuit breaker drain leaks in substations while reducing disassembly and potential equipment downtime.

Address leaks in transformer and electrical substation apparatus supporting generating plant maintenance requirements.

Support outsourced substation maintenance scopes with targeted drain plug and valve leak-sealing solutions.

Add specialised leak-sealing support for transformer, circuit breaker, and other substation apparatus repair work.
Discuss the leaking apparatus, component, and repair conditions with TDS technical personnel.
TDS personnel work exclusively in substations, applying specialised low-pressure leak-sealing knowledge to transformers, circuit breakers, and related apparatus.
Clamp and enclosure solutions can reduce traditional teardown requirements, with installation possible while equipment remains energised when conditions allow.
Experienced technical consultants and technicians help identify the leaking component and select a focused repair approach for the equipment.
Share your equipment type, leak location, and repair requirements. TDS can review the application and discuss an appropriate sealing approach.
For immediate assistance, feel free to give us a direct call at 775-586-8300. You can also send us a quick email at kfitzgerald@TDSgroup.biz.
For immediate assistance, feel free to give us a direct call at 775-586-8300. You can also send us a quick email at kfitzgerald@TDSgroup.biz.