Reducer Coupling, Slip x Slip PVC Schedule 40 8" x 6" (429-585)
$66.40
Meta Title: 8" x 6" PVC Schedule 40 Reducing Coupling | Slip x Slip | Maxx-Supply
Meta Description: Buy the 8" x 6" PVC Schedule 40 Reducing Coupling (429-585) — slip x slip, NSF 61 listed, large-diameter inline size transition for commercial and municipal piping. Fast shipping at Maxx-Supply.
Product Description: The 8" x 6" PVC Schedule 40 Reducing Coupling (429-585) delivers a direct, inline size transition from an 8" primary line down to a 6" continuation run in a single solvent-welded fitting — no intermediate reducers, no additional fittings, no added joint complexity at the transition point. Both ends use slip (socket) connections for permanent, pressure-rated solvent-welded joints that maintain full structural integrity throughout the assembly.
At 8" inlet and 6" outlet, this is a large-format fitting operating at the upper end of the Schedule 40 PVC diameter range — purpose-built for the high-volume primary distribution headers, municipal transmission mains, and large-scale industrial process headers where this size combination appears in engineered system designs. The single-step reduction from 8" to 6" is a common transition in systems where a large transmission or supply main feeds a distribution header of meaningful but reduced capacity — keeping flow volume high while stepping down for a specific downstream run, zone, or equipment connection.
The slip configuration on both ends keeps the installation straightforward: both ports accept standard Schedule 40 pipe for solvent-welded assembly, and dimensional compliance with ASTM D2466 ensures compatibility with Schedule 40 pipe and fittings from all major manufacturers at both the 8" and 6" ends. NSF 61 certification confirms suitability for potable water contact, making this coupling appropriate for municipal water distribution, commercial plumbing, and potable water infrastructure applications alongside industrial and process uses.
Specifications:
| Specification | Detail |
|---|---|
| Part Number | 429-585 |
| Material | PVC (Polyvinyl Chloride) |
| Schedule | Schedule 40 |
| Fitting Type | Reducing Coupling |
| Connection Type | Slip x Slip |
| Large End Size | 8" |
| Small End Size | 6" |
| Pressure Rating | 160 PSI @ 73°F (6" end) |
| Temperature Range | Up to 140°F |
| Color | White |
| Standards | ASTM D2466, NSF 61 |
Industries & Applications:
- Municipal & Civil Water Distribution — inline size transitions from 8" transmission mains or supply headers down to 6" distribution mains in municipal water infrastructure
- Commercial Plumbing — primary supply header reductions in large commercial facilities, campus systems, and institutional buildings where 8" mains feed 6" distribution runs
- Industrial Process Piping — controlled inline diameter reductions on high-volume cooling water, process water, and plant utility headers where an engineered single-step transition is specified
- Fire Suppression — large-diameter inline reductions in main supply headers for commercial and industrial fire protection systems where PVC is approved for the application
- Irrigation & Agriculture — mainline-to-distribution inline reductions in large-scale agricultural and municipal irrigation systems stepping down from primary transmission to zone distribution headers
- Water & Wastewater Treatment — primary distribution and process header inline reductions in treatment plant piping systems
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Reducer Coupling, Slip x Slip PVC Schedule 40 8" x 6" (429-585)
Meta Title: 8" x 6" PVC Schedule 40 Reducing Coupling | Slip x Slip | Maxx-Supply
Meta Description: Buy the 8" x 6" PVC Schedule 40 Reducing Coupling (429-585) — slip x slip, NSF 61 listed, large-diameter inline size transition for commercial and municipal piping. Fast shipping at Maxx-Supply.
Product Description: The 8" x 6" PVC Schedule 40 Reducing Coupling (429-585) delivers a direct, inline size transition from an 8" primary line down to a 6" continuation run in a single solvent-welded fitting — no intermediate reducers, no additional fittings, no added joint complexity at the transition point. Both ends use slip (socket) connections for permanent, pressure-rated solvent-welded joints that maintain full structural integrity throughout the assembly.
At 8" inlet and 6" outlet, this is a large-format fitting operating at the upper end of the Schedule 40 PVC diameter range — purpose-built for the high-volume primary distribution headers, municipal transmission mains, and large-scale industrial process headers where this size combination appears in engineered system designs. The single-step reduction from 8" to 6" is a common transition in systems where a large transmission or supply main feeds a distribution header of meaningful but reduced capacity — keeping flow volume high while stepping down for a specific downstream run, zone, or equipment connection.
The slip configuration on both ends keeps the installation straightforward: both ports accept standard Schedule 40 pipe for solvent-welded assembly, and dimensional compliance with ASTM D2466 ensures compatibility with Schedule 40 pipe and fittings from all major manufacturers at both the 8" and 6" ends. NSF 61 certification confirms suitability for potable water contact, making this coupling appropriate for municipal water distribution, commercial plumbing, and potable water infrastructure applications alongside industrial and process uses.
Specifications:
| Specification | Detail |
|---|---|
| Part Number | 429-585 |
| Material | PVC (Polyvinyl Chloride) |
| Schedule | Schedule 40 |
| Fitting Type | Reducing Coupling |
| Connection Type | Slip x Slip |
| Large End Size | 8" |
| Small End Size | 6" |
| Pressure Rating | 160 PSI @ 73°F (6" end) |
| Temperature Range | Up to 140°F |
| Color | White |
| Standards | ASTM D2466, NSF 61 |
Industries & Applications:
- Municipal & Civil Water Distribution — inline size transitions from 8" transmission mains or supply headers down to 6" distribution mains in municipal water infrastructure
- Commercial Plumbing — primary supply header reductions in large commercial facilities, campus systems, and institutional buildings where 8" mains feed 6" distribution runs
- Industrial Process Piping — controlled inline diameter reductions on high-volume cooling water, process water, and plant utility headers where an engineered single-step transition is specified
- Fire Suppression — large-diameter inline reductions in main supply headers for commercial and industrial fire protection systems where PVC is approved for the application
- Irrigation & Agriculture — mainline-to-distribution inline reductions in large-scale agricultural and municipal irrigation systems stepping down from primary transmission to zone distribution headers
- Water & Wastewater Treatment — primary distribution and process header inline reductions in treatment plant piping systems
- Part #:
- 429-585
- Product Family:
- Sch 40 PVC
- Carton Qty:
- 4
- Pallet Qty:
- 96
- Size:
- 8"
