Reducing Tee, Slip x Slip x Slip PVC Schedule 40 4" x 4" x 1" (401-417)
The 401-417 is a PVC Schedule 40 reducing tee with a 4" slip (socket) run and a 1" slip (socket) branch outlet, all joined by solvent cement welding per ASTM D2564. The two 4" run ports accept standard 4" PVC pipe ends for a permanent, pressure-rated inline connection, while the 1" slip branch accepts a standard 1" PVC pipe end — creating a fully solvent-welded, three-way reducing junction with no threaded connections at any port.
Manufactured from rigid PVC compound conforming to ASTM D1784 cell classification requirements, this fitting delivers the corrosion resistance, chemical compatibility, and long service life associated with Schedule 40 PVC across a wide range of commercial, industrial, and municipal piping systems. The Schedule 40 wall thickness provides reliable pressure-rated performance for both pressurized distribution systems and gravity-flow applications.
The 401-417 is the all-slip counterpart to the 402-417 (4" x 4" x 1" FPT branch) and occupies a well-defined position in the lower-middle range of the 4" all-slip reducing tee series — the 1" branch is larger than the minimal-flow tap sizes of the 401-415 (1/2") and 401-416 (3/4"), carrying enough flow capacity for dedicated service connections, small zone supply lines, and chemical injection circuits, while remaining clearly subordinate to the 4" mainline as a controlled branch. The all-slip configuration is the characteristic that governs the entire application context of this fitting: all three joints are permanent solvent welds, and none can be disconnected without cutting pipe. This makes the 401-417 the correct choice when the 1" branch is a designed-in permanent element of the piping system — a fixed chemical injection line, a dedicated zone feed that will never be relocated, a permanent air vent connection, or a long-term low-to-moderate flow service branch that is integral to the system layout rather than a serviceable connection point. The 1" branch size sits at a meaningful threshold within the series: at 3/4" and below, permanently solvent-welded branch connections are routine because the downstream elements are typically small and inexpensive to replace by cutting and re-piping if needed. At 1" and above, the downstream connected system elements — zone valves, flow control fittings, inline strainers — are substantial enough that the permanent nature of the branch joint deserves deliberate consideration before installation. Buyers who have any requirement to service, remove, or reconfigure the 1" branch connection in the future should select the 402-417 (FPT branch) instead, which provides an identical run configuration with a threaded 1" outlet that remains fully serviceable throughout the system's life.
Specifications:
| Attribute | Detail |
|---|---|
| Part Number | 401-417 |
| Material | PVC (Polyvinyl Chloride) |
| Schedule / Class | Schedule 40 |
| Fitting Type | Reducing Tee |
| Run End Connection | Slip (Socket) x Slip (Socket) |
| Branch End Connection | Slip (Socket) |
| Run Size | 4" x 4" |
| Branch Size | 1" |
| Connection Method | Solvent Cement Weld (all ports) |
| Pressure Rating | Rated per ASTM D2466 (temperature and size dependent) |
| Temperature Range | Up to 140°F (60°C) for pressure service |
| Color | White/Gray (PVC natural) |
| Standards | ASTM D2466, ASTM D1784 |
| Listing | NSF/ANSI 61 (potable water contact) |
Industries & Applications:
- Irrigation & Agriculture — Permanent 1" branch connections off 4" mainline headers for fixed zone valve feeds, dedicated chemical injection lines, and permanent low-to-moderate flow service branches in large-scale pressurized irrigation systems where the branch is a long-term installation requiring no future serviceability at the joint
- Municipal Water & Wastewater — Permanent service taps, fixed chemical dosing injection points, and dedicated low-flow branches off 4" distribution mains at pump stations and treatment facilities where an all-solvent-weld 1" branch connection is specified as a permanent system element
- Industrial Process Piping — Permanent 1" branch taps off 4" process fluid and cooling water mainlines for fixed chemical injection ports, dedicated air vent connections, permanent sample lines, and low-to-moderate flow service branches in fully solvent-welded piping systems
- HVAC & Mechanical — Permanent 1" branch connections off 4" chilled water and condenser water mainlines for fixed condensate drain taps, dedicated air vent lines, and permanent low-flow service branches in commercial mechanical rooms where all-slip construction is specified throughout
- Commercial Plumbing — Permanent low-to-moderate flow branch connections off 4" distribution headers for fixed zone feeds, dedicated equipment supply lines, and permanent service branches where the branch is a designed-in system element with no future removal requirement
- Fire Suppression — Permanent inspector test connection feeds, fixed pressure gauge taps, and dedicated instrument branches off 4" sprinkler system mains where an all-solvent-welded 1" branch is specified as part of a fully bonded system installation
The 401-417 is a PVC Schedule 40 reducing tee with a 4" slip (socket) run and a 1" slip (socket) branch outlet, all joined by solvent cement welding per ASTM D2564. The two 4" run ports accept standard 4" PVC pipe ends for a permanent, pressure-rated inline connection, while the 1" slip branch accepts a standard 1" PVC pipe end — creating a fully solvent-welded, three-way reducing junction with no threaded connections at any port.
Manufactured from rigid PVC compound conforming to ASTM D1784 cell classification requirements, this fitting delivers the corrosion resistance, chemical compatibility, and long service life associated with Schedule 40 PVC across a wide range of commercial, industrial, and municipal piping systems. The Schedule 40 wall thickness provides reliable pressure-rated performance for both pressurized distribution systems and gravity-flow applications.
The 401-417 is the all-slip counterpart to the 402-417 (4" x 4" x 1" FPT branch) and occupies a well-defined position in the lower-middle range of the 4" all-slip reducing tee series — the 1" branch is larger than the minimal-flow tap sizes of the 401-415 (1/2") and 401-416 (3/4"), carrying enough flow capacity for dedicated service connections, small zone supply lines, and chemical injection circuits, while remaining clearly subordinate to the 4" mainline as a controlled branch. The all-slip configuration is the characteristic that governs the entire application context of this fitting: all three joints are permanent solvent welds, and none can be disconnected without cutting pipe. This makes the 401-417 the correct choice when the 1" branch is a designed-in permanent element of the piping system — a fixed chemical injection line, a dedicated zone feed that will never be relocated, a permanent air vent connection, or a long-term low-to-moderate flow service branch that is integral to the system layout rather than a serviceable connection point. The 1" branch size sits at a meaningful threshold within the series: at 3/4" and below, permanently solvent-welded branch connections are routine because the downstream elements are typically small and inexpensive to replace by cutting and re-piping if needed. At 1" and above, the downstream connected system elements — zone valves, flow control fittings, inline strainers — are substantial enough that the permanent nature of the branch joint deserves deliberate consideration before installation. Buyers who have any requirement to service, remove, or reconfigure the 1" branch connection in the future should select the 402-417 (FPT branch) instead, which provides an identical run configuration with a threaded 1" outlet that remains fully serviceable throughout the system's life.
Specifications:
| Attribute | Detail |
|---|---|
| Part Number | 401-417 |
| Material | PVC (Polyvinyl Chloride) |
| Schedule / Class | Schedule 40 |
| Fitting Type | Reducing Tee |
| Run End Connection | Slip (Socket) x Slip (Socket) |
| Branch End Connection | Slip (Socket) |
| Run Size | 4" x 4" |
| Branch Size | 1" |
| Connection Method | Solvent Cement Weld (all ports) |
| Pressure Rating | Rated per ASTM D2466 (temperature and size dependent) |
| Temperature Range | Up to 140°F (60°C) for pressure service |
| Color | White/Gray (PVC natural) |
| Standards | ASTM D2466, ASTM D1784 |
| Listing | NSF/ANSI 61 (potable water contact) |
Industries & Applications:
- Irrigation & Agriculture — Permanent 1" branch connections off 4" mainline headers for fixed zone valve feeds, dedicated chemical injection lines, and permanent low-to-moderate flow service branches in large-scale pressurized irrigation systems where the branch is a long-term installation requiring no future serviceability at the joint
- Municipal Water & Wastewater — Permanent service taps, fixed chemical dosing injection points, and dedicated low-flow branches off 4" distribution mains at pump stations and treatment facilities where an all-solvent-weld 1" branch connection is specified as a permanent system element
- Industrial Process Piping — Permanent 1" branch taps off 4" process fluid and cooling water mainlines for fixed chemical injection ports, dedicated air vent connections, permanent sample lines, and low-to-moderate flow service branches in fully solvent-welded piping systems
- HVAC & Mechanical — Permanent 1" branch connections off 4" chilled water and condenser water mainlines for fixed condensate drain taps, dedicated air vent lines, and permanent low-flow service branches in commercial mechanical rooms where all-slip construction is specified throughout
- Commercial Plumbing — Permanent low-to-moderate flow branch connections off 4" distribution headers for fixed zone feeds, dedicated equipment supply lines, and permanent service branches where the branch is a designed-in system element with no future removal requirement
- Fire Suppression — Permanent inspector test connection feeds, fixed pressure gauge taps, and dedicated instrument branches off 4" sprinkler system mains where an all-solvent-welded 1" branch is specified as part of a fully bonded system installation
- Part #:
- 401-417
- Product Family:
- Sch 40 PVC
- Carton Qty:
- 5
- Pallet Qty:
- 270
- Size:
- 4"