Questions & Answers (FAQs)
Heat Exchanger Products Corporation
55 Industrial Park Road
Hingham, MA 02043
Tel. 781-749-0220
Fax. 781-740-8738
HEPCO@HEPCOplugs.com
55 Industrial Park Road
Hingham, MA 02043
Tel. 781-749-0220
Fax. 781-740-8738
HEPCO@HEPCOplugs.com
Typically Asked Questions Regarding HEPCO Silicone Tube Plugs
Q: What temperatures can the HEPCO plugs be used at?
A: The HEPCO Silicone Tube Plugs maintains it's flexibility from -75° F through 585° F.
Q: What is the maximum pressure range for the HEPCO Silicone Tube Plug?
A: HEPCO double silicone tube plugs are tested at 200 psi pressure and are not recommended for high pressure use. Single plugs are typically used for 60 psi and below.
Q: Can it be used in a nuclear facility for plugging heat exchangers with low level radiation?
A: The silicone expandable part is rated for 109 rads - the hytrel (washers and collars) at 107.
Q: How long will the HEPCO plug last in service?
A:The HEPCO Silicone Tube Plug has a 20 to 30 year service expectancy at 100° F to 250° F - much longer at lower temperatures.
Q: Can it only be used in cooling water applications?
A: No - it can be used for almost any heat exchanger application circulating acids, except where solvents are being used.
Q: Can the HEPCO plug be used in coated heat exchangers?
A: It is one of the only expandable plugs that is recommended for this application.
Q: Will it provide a better seal than other plugs?
A: In almost all cases, it will seal better because of it's tremendous flexible qualities. It will conform to almost any tube distortion or pitted surface area.
Q: What other benefits are there in using the HEPCO Silicone Tube Plug?
A: It will not distort tube or tube sheets like metal plugs
It is easily installed
It will not fail due to cracking or rotting like rubber will
It can be re-used
It will not add to corrosion or galvanic problems because no metallic parts touch the inside of the tube
It is easily installed
It will not fail due to cracking or rotting like rubber will
It can be re-used
It will not add to corrosion or galvanic problems because no metallic parts touch the inside of the tube