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2 inches.


Each disc seal will include a double bladder. This means two bladders will be included in the purchase of each disc seal. The double bladders are engineered to provide a leakproof seal.


Cherne has designed the disc seals by using a lightweight, corrosion-resistant aluminum. The disc seals also include handles that assist for easy transporting and installation.


The disc seal sizes range from 24 inches to 96 inches.

Part Number  Disc Seal Size Max Back Pressure Bypass Diameter Weight
102418  24 IN 5 PSI 2 IN 65.52 LB
102718  27 IN 5 PSI 2 IN 74.72 LB
103018  30 IN 5 PSI 2 IN 85.07 LB
103318  33 IN  5 PSI 2 IN 95.05 LB
103618  36 IN 5 PSI 2 IN 105.38 LB
103918  39 IN 5 PSI 2 IN 126.72 LB
104218  42 IN 5 PSI 2 IN 138.35 LB
104518  45 IN 5 PSI 2 IN 150.32 LB
104818  48 IN 5 PSI 2 IN 162.69 LB
105418  54 IN 5 PSI 2 IN 188.45 LB
106018  60 IN 5 PSI 2 IN 215.58 LB
106618  66 IN 5 PSI 2 IN 244.06 LB
107218  72 IN 5 PSI 2 IN 329.34 LB
107818  78 IN 5 PSI 2 IN 367.29 LB
108418  84 IN 5 PSI 2 IN 405 LB
109018  90 IN 5 PSI 2 IN 444.39 LB
109618  96 IN 5 PSI 2 IN 485.13 LB

 


5 PSI.


Cherne Disc Seals are designed to block flow or provide bypass flow in underground pipes with a low backpressure. Used for pipe construction, rehabilitation, cleaning and testing, these plugs can be separated into two halves to effortlessly fit through any manhole.


5 seconds


Yes. There is a video on the Cherne page on YouTube that demonstrates how a joint tester works. Owner’s Manuals with specific instructions on assembling and using Cherne Joint Testers can be found in technical section of the Cherne website.


Smoke bombs have a one year shelf life from the date of manufacture. The shelf life on the mineral oil used in liquid smoke is indefinite.

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