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I ccnilical Ossaiplt on Weaver products are constructed from Aicryn0 I hreaded'bulkheads, B2, B3, and B6 will seal TPE and Celcon® polvacetal. These products to either a flat or curved surface, due to the design resist corrosion and common fuels and chemicals. of the seals. The B5 seals to a flat surface with a Nitrile rubber,which is only given a two, five or fiat gasket, and seals to a curved surface with a ten year life rating by manufacturers and the 7-:.S. ury J.S. curved gasket. Military, is not used in Weaver boots. Threaded bulkheads have an installation advan- Weaver bulkheads are designed so that adjust- tage over studded bulkheads. The studded bulls- mens can be made without breaking concrete and head requires a hole for each stud to be drilled into removing back fill. After installation,the seal and the sump wall as well as a hole for the pipe.The reducer on the threaded bulkhead can be tightened threaded bulkhead requires only one hole to be or replaced from inside the sump or dispenser pan. drilled in the sump and then the parts are screwed The front plate reducer on the studded bulkhead together. This factor can reduce labor cost and can be tightened or replaced from inside the sump also reduce installation time. or dispenser pan. Sinusoidal Alcr,m bands are used to strengthen The studded bulkheads seal to either flat or the attachment of corrugated pipe on retractable curved surfaces due to the flexible design of the systems to Weaver bulkheads. front plates and back plates. _ reducer o arc aTa able. either I _ - th c sac ® - the studded bulkheads The Double Sided dispenserpan. integral Moiling Reducer The attachment of the Bulkhead (part 4 B51DR- first step band clamp to corrugated pipe on has a reducer and seal ons retr actabie systems is strengthened by the use both sides of the sump or dispense:pan. The of a sinusoidal Alc.yn band. This will compensate for standard reducer on the outside of the sump or the corrugated pipe pulling dispenser pan is square _ on the bulkhead during shouldered,sealing to the back fill. I — I The rolling part of the secondary pipe or the I reducer will absorb the corrugated pipe on retractable systems. The , stress of non-perpendicular integral roiling reducer on penetrations of pipe the inside has two steps. through the sump wall or The first step band clamp next to the bulkhead body is for dispenser pan wall.T fie rolling feature will lesson the stress termination of the secondary pan of the piping system or on the mouth of the reducer and improve the scaling capability the corrugated pipe of a retractable system. of the band clamps. This option is critical in flex The secondary part of the piping system will be one pipe installations and fiberglass reinforced pipe installations of the following;the secondary laver of a coaxial fle^ were the layout of the pipe requires bends,arcs,or elbows pipe,the secondary layer of a coaxial tibergiass reinforced as the pipe negotiates the bulkhead of the sumo or pipe,or the secondary pipe of a standard fiberglass dispenser pan. reinforced pipe installation. The second step band clamp The double sided integral rolling reducer bulkhead seals the bulkhead reducer to the primary pipe or the performs e,�emely well and is highly recommended in secondary layer of coaxial flex pipe on retractable areas with high water tables. systems. The double sided design will not allow ground water or Add a test valve to the integral reducer,and the back fill into the bulkhead eliminating problems due to interstitial space between the secondary and primary pipe freezing and thawing of ground water.This style can be can be air tested, filled with a non-permeabie agent increasing the integrity integral reducers that terminate secondary parts of of the bulkhead sealing the pipe to the stnnp or dispenser the piping system at the bulkhead eliminate the need for pan.Double sided bulkheads add the environmental terminating reduces and test reducers on the inside of the security of secondary containment to pipe conduit sump or dispenser pan. This option is an important entry fttdrigs. consideration with Iimited space inside the sump or i at