Reducing Tee, Slip x Slip x Slip PVC Schedule 40 4" x 4" x 3" (401-422)
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 401-422 is the all-slip counterpart to the 402-422 (4" x 4" x 3" FPT branch) and carries the same application context with a fundamentally different end-type character: all three ports are permanent solvent-welded connections, producing a fully bonded three-way junction with no threaded interfaces at any port. This makes the 401-422 the correct choice when a high-flow 3" branch is a permanent, fixed installation — a primary lateral supply line, a bypass circuit, a pump station branch header, or a major secondary distribution main that will never require removal, disconnection, or reconfiguration at the branch joint. The 3" branch is the largest outlet size in the 4" all-slip reducing tee series and carries the highest flow capacity of any branch in the 401-4xx family — at only a one-inch reduction from the 4" run, the branch is a near-primary-flow path rather than a subordinate tap, making this fitting appropriate for systems where the branch must handle substantial, sustained flow volume as a primary circuit rather than a secondary or service connection. Buyers who need the branch connection to remain serviceable — for future valve replacement, equipment removal, or system reconfiguration — should select the 402-422 (FPT branch) instead, which provides an identical run configuration with a threaded branch outlet that can be disconnected without cutting pipe.
Specifications:
| Attribute | Detail |
|---|---|
| Part Number | 401-422 |
| 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 | 3" |
| 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 high-flow 3" branch connections off 4" mainline headers for primary lateral supply lines, zone sector headers, and fixed bypass circuits in large-scale pressurized irrigation systems where the branch is a permanent primary flow path requiring no future serviceability
- Municipal Water & Wastewater — Permanent high-capacity branch connections off 4" distribution mains at pump stations, treatment facility headers, and water distribution system assemblies where a 3" branch carries substantial sustained flow to a secondary distribution main or service circuit
- Industrial Process Piping — Permanent three-way junctions in chemical distribution, cooling water, and process fluid systems where a 4" mainline must branch to a 3" primary distribution or bypass line in a fully solvent-welded system with no threaded interfaces
- Commercial Plumbing — Mechanical room distribution manifolds where a 4" supply header must permanently branch to a 3" primary service circuit, equipment supply main, or bypass assembly in an all-solvent-weld piping system
- Fire Suppression — Permanent high-flow branch connections off 4" sprinkler system mains where a 3" branch supplies a major circuit, riser connection, or system sectionalizing assembly as a fixed, fully bonded installation
- Aquaculture & Water Treatment — Permanent high-capacity three-way junctions in large recirculating aquaculture and water treatment systems where a 4" supply main must permanently branch to a 3" primary circuit header or treatment loop supply line
- Part #:
- 401-422
- Product Family:
- Sch 40 PVC
- Carton Qty:
- 5
- Pallet Qty:
- 200
- Size:
- 4"