18 - Internal Coupling Kee Klamp Fitting

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0.39 LBS
Calculated at Checkout
18 - Internal Coupling Kee Klamp Fitting

An internal spigot providing a flush joint between two pipes of the same diameter. Not as strong as Type 14 and must not be used where a direct tensile load is applied. This fitting can only be used with schedule 40 steel pipe.

Danger: Type 18 coupling must not be used as a load bearing joint.

kee-klamp-18.jpg kee-klamp-18-profile.jpg
Fitting Type Bore Size
(Inside of Pipe)
Pipe A
(Schedule 40)
18-6 1” 6 2.99” .79”
18-7 1-1/4” 7 2.99” .79”
18-8 1-1/2” 8 3.74” .79”


Pipe For Your Structure

Kee Klamp safety components are produced in a range of standard sizes to suit schedule 40 steel pipe, sizes 1/4" nominal to 2” nominal bore; also equivalent sizes of tubing in other materials.

Tubing of other specifications can be used, providing the outside diameter is compatible with schedule 40 pipe. Pipe with a wall thickness of less than 1/8” can only be used in lightly loaded structure.

A Kee Klamp component (size 5 – 9) can support an axial load of 2,000 lbs per set screw with the set screw tightened to a torque of 29 lbs/ft. (Rating includes a safety factor of 2:1.) This is normally obtained when the set screw is fully tightened using a ratchet wrench. 

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