Reducing Tee, Slip x Slip x Slip PVC Schedule 40 5" x 5" x 3" (401-488)
$49.73
The 5" x 5" x 3" PVC Schedule 40 Reducing Tee (Part No. 401-488) is a large-diameter, white-body fitting designed to introduce a 3" branch connection off a 5" Schedule 40 PVC main line. The two run ports maintain the full 5" bore for straight-through flow continuity, while the branch port steps down to 3" — all three ports accepting solvent-cement joints in a slip (socket) configuration, producing a rigid, leak-resistant assembly suited to the high-volume flow applications where large-diameter Schedule 40 PVC is the specified material.
The two-step branch reduction from 5" to 3" is the defining characteristic of this tee. Compared to the adjacent 401-490 (5" × 4" branch), the 3" branch represents a more deliberate flow partitioning decision — the branch circuit carries substantial capacity but is intentionally sized at two nominal diameters below the main run, reflecting a system design where the branch serves a meaningful secondary function rather than a near-equal parallel circuit. This configuration is common at system branch points where a 5" trunk or transmission main feeds a 3" distribution run, zone header, or equipment supply line, allowing the main run to continue at full 5" capacity through the fitting while delivering a well-defined 3" branch flow at the junction.
The two-step reduction also makes this tee a practical specification wherever a same-size 5" tee is already part of the assembly design and a downstream reducing bushing or coupling on the branch would add unwanted length or joint complexity. By integrating both the branch connection and the size reduction into a single fitting, the 401-488 keeps the branch outlet compact and the overall assembly clean — a meaningful advantage at large diameters where each additional fitting and solvent-cement joint represents a real cost and labor increment.
As with all 5" Schedule 40 fittings, this reducing tee occupies a less-common tier of the nominal pipe size sequence. Buyers sourcing a 5" × 3" reducing tee have a confirmed project specification where both 5" and 3" have been deliberately selected as the relevant diameters, and the availability of this exact size combination in a single Schedule 40 white PVC fitting is often the deciding procurement factor for the installation.
Manufactured from Type I, Grade I PVC compound, this fitting conforms to ASTM D2466 dimensional standards and is compatible with Schedule 40 PVC pipe and solvent cements meeting ASTM D2564.
Specifications:
| Attribute | Detail |
|---|---|
| Part Number | 401-488 |
| Material | PVC (Polyvinyl Chloride) — Type I, Grade I |
| Color | White |
| Schedule | Schedule 40 |
| Fitting Type | Reducing Tee |
| Connection Type | Slip x Slip x Slip (Socket — All Three Ports) |
| Run Size | 5" |
| Branch Size | 3" |
| Dimensional Standard | ASTM D2466 |
| Solvent Cement Standard | ASTM D2564 |
| Listings / Certifications | NSF-listed (verify with manufacturer datasheet) |
| Suitable Pipe Schedule | Schedule 40 PVC Pipe |
| Temperature Rating | Up to 140°F (60°C) at rated pressure |
| Chemical Resistance | Good resistance to acids, alkalis, and general-purpose chemical environments within Schedule 40 pressure ratings |
Industries & Applications:
- Municipal Water Distribution — Branch connections off 5" transmission or distribution mains to 3" service laterals, zone headers, and sub-distribution runs where the branch requires meaningful but not near-full-run flow capacity
- Large-Scale Irrigation — Three-way distribution points on 5" agricultural and landscape irrigation mains where a 3" branch supplies a zone header, lateral distribution run, or pump station connection at a defined flow rate below the main run capacity
- Industrial Process Water — Branch feed connections on 5" process water and cooling water systems where a 3" circuit must be tapped off the main run at a two-size reduction without downstream reducing hardware on the branch outlet
- Stormwater & Site Drainage — Three-way junction points on large-diameter stormwater conveyance systems where a 3" branch collection or discharge line must be introduced off a 5" main conveyance run
- Water & Wastewater Treatment — Distribution and collection system branch points on 5" PVC plant infrastructure where a 3" branch circuit supplies process connections, recirculation loops, or secondary treatment distribution headers
- Commercial & Institutional Construction — Large-site utility and fire suppression system branch points on 5" PVC mains where a 3" branch feeds zone entries, building service connections, or secondary distribution sub-headers
- Retrofit & System Expansion — Branch junction fittings on existing 5" Schedule 40 PVC infrastructure where a new 3" circuit must be introduced at a system branch point without modifying or upsizing the existing main line
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Reducing Tee, Slip x Slip x Slip PVC Schedule 40 5" x 5" x 3" (401-488)
The 5" x 5" x 3" PVC Schedule 40 Reducing Tee (Part No. 401-488) is a large-diameter, white-body fitting designed to introduce a 3" branch connection off a 5" Schedule 40 PVC main line. The two run ports maintain the full 5" bore for straight-through flow continuity, while the branch port steps down to 3" — all three ports accepting solvent-cement joints in a slip (socket) configuration, producing a rigid, leak-resistant assembly suited to the high-volume flow applications where large-diameter Schedule 40 PVC is the specified material.
The two-step branch reduction from 5" to 3" is the defining characteristic of this tee. Compared to the adjacent 401-490 (5" × 4" branch), the 3" branch represents a more deliberate flow partitioning decision — the branch circuit carries substantial capacity but is intentionally sized at two nominal diameters below the main run, reflecting a system design where the branch serves a meaningful secondary function rather than a near-equal parallel circuit. This configuration is common at system branch points where a 5" trunk or transmission main feeds a 3" distribution run, zone header, or equipment supply line, allowing the main run to continue at full 5" capacity through the fitting while delivering a well-defined 3" branch flow at the junction.
The two-step reduction also makes this tee a practical specification wherever a same-size 5" tee is already part of the assembly design and a downstream reducing bushing or coupling on the branch would add unwanted length or joint complexity. By integrating both the branch connection and the size reduction into a single fitting, the 401-488 keeps the branch outlet compact and the overall assembly clean — a meaningful advantage at large diameters where each additional fitting and solvent-cement joint represents a real cost and labor increment.
As with all 5" Schedule 40 fittings, this reducing tee occupies a less-common tier of the nominal pipe size sequence. Buyers sourcing a 5" × 3" reducing tee have a confirmed project specification where both 5" and 3" have been deliberately selected as the relevant diameters, and the availability of this exact size combination in a single Schedule 40 white PVC fitting is often the deciding procurement factor for the installation.
Manufactured from Type I, Grade I PVC compound, this fitting conforms to ASTM D2466 dimensional standards and is compatible with Schedule 40 PVC pipe and solvent cements meeting ASTM D2564.
Specifications:
| Attribute | Detail |
|---|---|
| Part Number | 401-488 |
| Material | PVC (Polyvinyl Chloride) — Type I, Grade I |
| Color | White |
| Schedule | Schedule 40 |
| Fitting Type | Reducing Tee |
| Connection Type | Slip x Slip x Slip (Socket — All Three Ports) |
| Run Size | 5" |
| Branch Size | 3" |
| Dimensional Standard | ASTM D2466 |
| Solvent Cement Standard | ASTM D2564 |
| Listings / Certifications | NSF-listed (verify with manufacturer datasheet) |
| Suitable Pipe Schedule | Schedule 40 PVC Pipe |
| Temperature Rating | Up to 140°F (60°C) at rated pressure |
| Chemical Resistance | Good resistance to acids, alkalis, and general-purpose chemical environments within Schedule 40 pressure ratings |
Industries & Applications:
- Municipal Water Distribution — Branch connections off 5" transmission or distribution mains to 3" service laterals, zone headers, and sub-distribution runs where the branch requires meaningful but not near-full-run flow capacity
- Large-Scale Irrigation — Three-way distribution points on 5" agricultural and landscape irrigation mains where a 3" branch supplies a zone header, lateral distribution run, or pump station connection at a defined flow rate below the main run capacity
- Industrial Process Water — Branch feed connections on 5" process water and cooling water systems where a 3" circuit must be tapped off the main run at a two-size reduction without downstream reducing hardware on the branch outlet
- Stormwater & Site Drainage — Three-way junction points on large-diameter stormwater conveyance systems where a 3" branch collection or discharge line must be introduced off a 5" main conveyance run
- Water & Wastewater Treatment — Distribution and collection system branch points on 5" PVC plant infrastructure where a 3" branch circuit supplies process connections, recirculation loops, or secondary treatment distribution headers
- Commercial & Institutional Construction — Large-site utility and fire suppression system branch points on 5" PVC mains where a 3" branch feeds zone entries, building service connections, or secondary distribution sub-headers
- Retrofit & System Expansion — Branch junction fittings on existing 5" Schedule 40 PVC infrastructure where a new 3" circuit must be introduced at a system branch point without modifying or upsizing the existing main line
- Part #:
- 401-488
- Product Family:
- Sch 40 PVC
- Carton Qty:
- 5
- Pallet Qty:
- 120
- Size:
- 5"
