Tee, Slip x Slip x Slip PVC Schedule 80 3" x 1" (801-335)

The 801-335 is a 3" x 1" Schedule 80 PVC Reducing Tee with Slip x Slip x Slip connections. This fitting maintains a full 3" cemented main run on both inline sockets while introducing a 1" slip branch socket off the side — all three connections are solvent-weld, making the entire assembly a fully cemented, permanent, pressure-rated branch fitting with no threaded ports. The two inline run sockets accept standard 3" Schedule 80 PVC pipe, preserving the full bore of the main line through the fitting, while the 1" branch socket receives 1" PVC pipe for a permanent cemented branch connection off the main run.

The all-slip configuration is the defining distinction between the 801-335 and any FPT-branch equivalent at this size — where an FPT branch version terminates the branch at a threaded valve, gauge, sensor, or equipment connection, the 801-335 is designed to continue the branch into a cemented 1" PVC pipe run downstream of the tee. The branch here is a permanent pipe extension. Once cemented, no connection in the assembly can be disassembled without cutting pipe — the all-slip 801-335 is the correct specification when the 1" branch continues as a cemented PVC pipe run to a downstream component, drain point, secondary circuit, or sub-system. If the branch terminates at a threaded connection rather than continuing as pipe, an FPT-branch equivalent at this size is the more efficient specification.

The 3" to 1" size differential places the 801-335 in the small-branch tier of the 3" Schedule 80 reducing tee family — a large-capacity main tapping to a branch one-third of the run diameter. Like the 1/2" branch variants (801-333, 802-333), this is not a flow-splitting configuration. The 1" branch is a limited-flow cemented pipe extension: a small-diameter bypass spur, a chemical injection line continuing as cemented PVC, a recirculation return, a drain branch, a vent connection, or any other minor cemented pipe branch that must originate permanently from the 3" main. The full capacity of the 3" run passes through the inline sockets undisturbed; the 1" branch draws a defined, small portion of that flow through a permanently bonded pipe extension off the side of the main.

Within the 3" Schedule 80 all-slip reducing tee series, the 801-335 sits between the 801-334 (3/4" branch) and the 801-337 (1-1/2" branch) in the branch size progression. Buyers stepping through this series should confirm the branch outlet size carefully — adjacent part numbers in the 801-33x tier differ by a single digit, and the correct SKU is determined entirely by the downstream branch pipe size required. The 3" run sockets and 1" branch socket are visually distinct at this size pairing — clearly different in diameter during installation — which reduces the risk of incorrect pipe insertion before cementing, though a deliberate size confirmation before primer application remains prudent practice on any reducing tee assembly.

The 3" run sockets require a full two-step primer and cement application with thorough coverage of the complete socket interior and pipe end surface given the larger joint surface area at this diameter. The 1" branch socket receives the same two-step approach. On a tee, run and branch sockets should be assembled in a sequence that allows each joint adequate set time, with each pipe held in alignment through the set period before the joint is allowed to cure undisturbed.

Schedule 80 wall thickness ensures the fitting meets the pressure and chemical resistance demands of industrial and commercial service environments, and the dark gray rigid PVC compound provides broad resistance to acids, bases, and industrial chemicals throughout the service life of the installation.

Specifications:

⚠️ Note: In a reducing fitting, the smallest port governs the pressure rating. All three sockets are permanent solvent-weld connections — once cemented, no connection can be broken without cutting pipe. Use primer before cementing all three sockets — do not skip the priming step on the 3" run sockets at this diameter. The 1" branch socket is a cemented pipe extension — if the downstream branch terminates at a threaded valve, gauge, or instrument rather than continuing as PVC pipe, specify an FPT branch equivalent instead. Confirm 801-335 (1" branch) vs. 801-334 (3/4" branch) and 801-337 (1-1/2" branch) before ordering — adjacent part numbers differ by a single digit. Consult manufacturer derating tables for elevated-temperature service.

Industries & Applications:

• Chemical Processing — Introduces a permanent 1" cemented chemical bypass spur, injection line, or recirculation return off a 3" chemical distribution main where the branch continues as cemented PVC pipe rather than terminating at a threaded fitting, with the all-slip assembly eliminating threaded joints at the branch point in corrosive-service piping systems
• Water & Wastewater Treatment — Used on 3" treatment plant distribution headers and process piping mains where a permanent 1" PVC pipe branch must be introduced for a low-flow sub-circuit, drain spur, recirculation return, or secondary process connection that continues as a cemented pipe run downstream of the tee rather than terminating at a threaded instrument or valve port
• Industrial Process Piping — Introduces a permanent 1" PVC cemented branch off a 3" process water, cooling water, or chemical line on plant piping and skid assemblies where the branch continues as a cemented run to a downstream drain point, bypass circuit, heat exchanger connection, or secondary process system
• Pump Station & Equipment Connections — Installed on 3" pump discharge or suction mains where a permanent 1" PVC bypass line, recirculation spur, or drain branch must originate from the main as a continuing cemented pipe run, with the all-slip configuration providing a cleaner assembly than a tee plus downstream slip-to-thread adapter combination
• Irrigation & Agricultural Systems — Used on 3" pressurized supply mains where a permanent 1" PVC branch pipe to a small-flow sub-circuit, chemical injection spur, or drip zone lateral must tie into the main and continue as a fully cemented pipe run downstream of the branch point, particularly where the downstream connection is another cemented PVC fitting rather than a threaded valve
• Municipal & Utility Infrastructure — Applied on 3" municipal water distribution and pump station mains where a permanent 1" PVC service branch, blow-off spur, or minor sub-distribution pipe must originate from the main at a defined point and continue as a cemented pipe run to a downstream assembly, valve box, or service connection point