Bullhead Tee, Slip x Slip x Slip PVC Schedule 80 8" x 8" x 12" (801-591)

This 8" x 8" x 12" Schedule 80 PVC Bullhead Tee (Slip x Slip x Slip) provides a heavy-duty all solvent-cement three-way flow collection junction where the perpendicular branch outlet is intentionally larger than both inline run ends — accepting 8" PVC pipe at both run ends for permanent large-diameter solvent-cement bonds while providing a larger 12" slip socket branch outlet for a permanent solvent-cement bond to the downstream collector or trunk main. Constructed in dark gray Schedule 80 PVC, it is designed for the demanding pressure performance, chemical resistance, and mechanical strength requirements of large-diameter municipal water distribution, industrial process piping, and heavy commercial irrigation trunk main assemblies where combining flow from two major 8" socket distribution runs into a single 12" socket trunk or header is the standard large-diameter collection junction configuration.

The two 8" slip socket run ends accept 8" PVC pipe for permanent large-diameter solvent-cement bonds forming the inline run portion of the fitting, while the 12" slip socket branch outlet accepts 12" PVC pipe for a permanent large-diameter solvent-cement bond on the downstream trunk main — the enlarged 12" branch accommodating the combined flow volume from both 8" run legs. This all-socket bullhead configuration is the correct choice when both the upstream 8" run assemblies and the downstream 12" trunk continuation are all-socket cemented PVC systems requiring a flow collection junction at this size combination. At 8" x 12", this bullhead tee is an industrial-grade fitting appearing in large-diameter municipal water distribution systems where two 8" transmission or distribution main sections must consolidate into a 12" trunk; in large-scale agricultural and municipal irrigation systems where dual 8" supply zones or pump station discharge headers must combine into a 12" primary distribution trunk; and in large industrial process water systems where parallel 8" distribution headers must collect into a 12" return or recirculating trunk.

Installation of large-diameter Schedule 80 PVC socket fittings at 8" and 12" requires significantly different procedures and materials than small-bore installations. Apply heavy-bodied, slow-set PVC solvent cement rated for large-diameter joints at both the 8" run end sockets and the 12" branch socket per ASTM D2564 procedures and manufacturer guidance for fittings above 4" nominal diameter — standard-body cements are not appropriate for joints of this size. Apply primer to both the pipe exterior and fitting socket interior at each port before cement application. The cement application sequence, working time, and cure time for large-diameter 8" and 12" joints are substantially longer and more critical than for small-bore joints — follow manufacturer published procedures for large-diameter solvent cement joints precisely, including the requirement for a full-circumference cement bead at each joint face after assembly. Joints at this size require mechanical support and alignment during assembly and should not be disturbed during the cure period; support the fitting and pipe sections independently to prevent joint stress during cure. Full cure time before pressurization must be observed per manufacturer guidelines for large-diameter joints, which are substantially longer than small-bore cure times. Derate pressure ratings for elevated temperatures per published derating curves.

Specifications:

Industries & Applications:

• Municipal Water Distribution — Collects combined flow from two 8" socket municipal water transmission or distribution main sections into a continuing 12" socket trunk main in municipal water distribution systems where parallel supply zones, pump station discharge headers, or distribution grid sections must consolidate at a large-diameter all-socket bullhead tee junction in the most compact single-fitting collection body available at the 8" x 12" size combination
• Large-Scale Irrigation — Agricultural & Municipal — Combines flow from two 8" socket primary supply or pump station discharge runs into a continuing 12" socket trunk main or primary distribution header in large-scale agricultural, golf course, and municipal irrigation systems where dual 8" pump station discharge lines or primary supply zones must consolidate into a 12" trunk for distribution to secondary header networks
• Industrial Process Piping — Provides a large-diameter all-socket flow collection junction where two 8" socket process water distribution headers, cooling water supply runs, or recirculating system return lines must consolidate into a continuing 12" socket trunk or collection main in industrial manufacturing, power generation, and chemical processing facilities where large-diameter all-socket PVC construction is specified throughout
• Water Treatment & Potable Water Systems — Collects flow from two 8" socket filter effluent runs, treatment train distribution headers, or backwash collection lines into a continuing 12" socket trunk or collection main in large-scale water treatment plants and municipal distribution systems where NSF/ANSI 61 compliance and large-diameter all-socket PVC construction are required at the primary collection junction
• Wastewater & Industrial Effluent — Consolidates two 8" socket process effluent, cooling water return, or secondary treatment collection runs into a continuing 12" socket trunk or discharge main in industrial and municipal wastewater treatment facilities where large-diameter Schedule 80 PVC construction is specified for chemical resistance throughout the collection system
• Fire Protection — Large-Diameter Grid Systems — Provides a large-diameter all-socket flow collection junction in large commercial, industrial, and municipal fire suppression distribution systems where two 8" socket grid feed or zone supply mains must consolidate into a 12" socket primary supply trunk at the main grid collection point