Strength and Benefits Using 2-3/8" Pipe Vs 1-7/8"
Between 2002 and 2008 1-7/8” Schedule 40 pipe was in use with those that preferred the pipe/ post mount install system with vinyl fence mostly due the available post mounting devices at this time. When Slip Mount System introduced it's 2-3/8” post mount device in 2009 offering an improved performance both the internal pipe, vinyl post and the entire fence system having more strength overall.
This is what now made the 2-3/8" pipe a better choice!
Slip Mounts with other vinyl post structures such as sign posts, arbors and pergolas?
When using Longer pipe and vinyl posts use 3 or 4 Slip Mounts per pipe.
So how long has this install system been around?
Patent searches reveal many pipe to post mounting systems and devices had been in use for the propose of fixing or mounting wood and other materials to an upright pipe dating back over 50 years ago, however It was not until the vinyl fence industry grew in popularity and by 2002 we first seen the use of a pipe to post mounting system designed specifically for PVC fence posts. One of the original was referred by many as the “Star Post Adapter” invented by G. Elsasser, (see Fig. 1) Elsasser's design was created in having a center cavity, circle or square this allowing square tube or round pipe fitment also having had 4 extended fins or points formed like a star in order to fit a hollow square fence post profile, one would simply to fasten on (2) Star shaped adapters to an upright pipe using screws and sleeve over with a hollow PVC fence post.
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* Note when using 1-7/8" pipe and Slip Mounts along with our "Reducer Insert" it is recommended using Schedule 40 industrial grade pipe in all privacy applications. The use of 1-7/8" with light commercial grade is best suited for decorative or ornamental vinyl fence styles having less wind load.