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CHERNE Clean-Seal Plugs
Cherne Clean-Seal plugs are installed on a PVC, ABS or cast iron tee for removing the backsplash of test water during stack testing of the drain, waste and vent (DWV) plumbing systems, keeping the work area & plumber dry. These easily installable plugs can seal both plastic & hard-to-seal cast iron threaded cleanouts and feature a removable snifter valve inflation fitting that is field repairable....Read more
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CWorking Mechanism
- Insert the plug into the pipe or application area by threading it into a standard test tee at a distance at least equal to the pipe diameter to prevent protruding of the plug.
- Connect one end of the inflation hose to the plug inflation fitting (such as Schrader valve) and the other end to the line pressure, pump or another supply pressure device.
- If another fitting is available, connect a pressure read-back hose to the fitting. The other end of the second hose should be connected to a calibrated gauge.
- Block / brace the plug properly before inflating the plug. Inflate the plug to its rated inflation pressure through the inflation hose.
- Stabilise the plug for a short moment before testing the pipe or application. After finishing the test or application, release all the back pressure & plug pressure until the plug is completely deflated.
- Remove the blocking / bracing system before removing the plug from the pipe. Store the plug securely according to the storage instructions.
Features
- Cherne Clean-Seal plugs can handle a maximum head pressure of 30 feet (9.1 metre) & maximum back pressure of 13 psi (0.9 bar).
- Their natural rubber body with high-impact ABS threads provide a leak-tight seal & enhanced durability.
- They can operate at temperatures ranging from 0 to 125 degrees F.
- These plugs are inflated using air / gas pressurised at 30 psi (2.1 bar) or 35 psi (2.4 bar).
- They are NPT-sized with nominal sizes ranging from 1.5 to 4 inches.
Compatible Accessories
- Cherne Inflation - Read Back Hoses: These pressure read-back hoses work with these plugs for supplying a pressurised gas supply. They are equipped with gauges for precise inflation or deflation.
Standards and Approvals
- ISO 9001
- OSHA
Frequently Asked Questions
How to determine the size of the plug required?
Users should determine the pipe's internal diameter (ID) and then choose a plug according to the ID for the application.
What are the points to remember before installing these plugs?
- Select a plug having the proper size according to the pipe size & design.
- Always measure the maximum back pressure that the plug must withstand. Choose the plug accordingly.
- Verify that the inside diameter of the pipe is within the plug's minimum and maximum sealing size range.
- Calibrated gauges & appropriate hoses should be used to inflate or deflate the plugs.
- Clean the pipe of any debris or foreign substance to reduce damage to the plug. Clean the plug with a mild soap & water without using any cleaning agent.
- Check the plug for any crack, corrosion, cut, leaks or loose fittings by inflating the plug with 1 PSIG pressure after every use.
- A backup system may be chosen to prevent injury in case of a plug failure.
- A properly designed blocking or bracing device must be used to restrain any plug movement due to forces behind the plug.
How to store these Cherne Clean-Seal plugs?
These plugs must be stored in a dry place below 110 degrees F and away from sunlight & ozone or ultra-violet light sources.
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