Male Adapter, MPT x Slip PVC Schedule 80 1-1/4" (836-012)
$5.89
The 836-012 is a 1-1/4" PVC Schedule 80 Male Adapter with a male pipe thread (MPT) on one end and a slip (socket) inlet on the other. This fitting serves as the transition point between a solvent-welded PVC pipe run and a female-threaded connection — threading into any standard 1-1/4" FPT fitting while accepting 1-1/4" PVC pipe via solvent cement on the socket end. It is among the most frequently specified adapters in industrial and commercial PVC piping systems wherever a solvent-weld main must connect to threaded valves, equipment ports, unions, or mechanical components.
Manufactured from dark gray PVC Schedule 80 compound, this adapter meets ASTM D2464 for the male threaded end and ASTM D2467 for the slip socket end, with NSF/ANSI 61 certification covering potable water contact applications. The heavier Schedule 80 wall thickness provides elevated pressure capacity and enhanced chemical resistance compared to Schedule 40 equivalents — critical in industrial process environments, chemical handling lines, and high-demand commercial systems where the added wall stock at the threaded connection reduces the risk of stress cracking at the thread roots under sustained pressure or thermal cycling.
The MPT end engages any standard 1-1/4" female NPT-threaded fitting with no additional tools beyond hand-tight plus wrench turns per standard NPT assembly practice — PTFE thread tape or an appropriate pipe thread sealant should be applied to the male threads before assembly to ensure a leak-free joint. The slip socket end follows standard Schedule 80 solvent cement procedure: clean, prime, and cement the mating pipe surface using a Schedule 80-compatible PVC cement per ASTM D2564. Because the threaded connection is the governing end for pressure rating purposes, system working pressure should be specified against the MPT end's published rating — consult Spears' technical data sheet for the confirmed working PSI at the 1-1/4" Schedule 80 male adapter before finalizing system design.
Specifications
| Attribute | Detail |
|---|---|
| Part Number | 836-012 |
| Manufacturer | Spears Manufacturing |
| Size | 1-1/4" |
| Connection Type | MPT (Male Pipe Thread) × Slip (Socket) |
| Schedule / Class | Schedule 80 |
| Material | PVC (Polyvinyl Chloride) |
| Color | Dark Gray |
| Threaded End Standard | ASTM D2464 |
| Socket End Standard | ASTM D2467 |
| Potable Water Listed | NSF/ANSI 61 |
| Joining Method — Slip End | Solvent Cement (ASTM D2564) |
| Joining Method — MPT End | Threaded (PTFE tape or thread sealant recommended) |
| Governing Pressure End | MPT End (verify PSI from Spears TDS) |
| Thread Type | NPT (National Pipe Taper) |
Industries & Applications
- Industrial Process Piping — Transitioning solvent-welded PVC process water, chemical transfer, and reagent distribution lines to threaded valves, pump ports, and instrumentation fittings in corrosive or high-pressure service environments
- Chemical Handling — Connecting Schedule 80 PVC solvent-weld pipe runs to threaded ball valves, check valves, or tank fittings in acid, alkali, and industrial reagent systems where the added wall thickness of Schedule 80 is required at the threaded joint
- Commercial Plumbing — Adapting 1-1/4" solvent-weld supply or drain lines to threaded mechanical components, unions, or equipment connections in commercial facilities
- Water Treatment & Purification — Transitioning between solvent-weld distribution mains and threaded filter housings, dosing equipment, and instrumentation ports in municipal and industrial water treatment systems
- Irrigation & Agriculture — Connecting Schedule 80 PVC solvent-weld mains to threaded zone valves, backflow preventers, and pump manifold ports in high-pressure irrigation systems
- HVAC & Mechanical Systems — Adapting solvent-weld PVC pipe to threaded mechanical equipment connections in chilled water, cooling tower, and condenser water systems where PVC is specified for corrosion resistance
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Male Adapter, MPT x Slip PVC Schedule 80 1-1/4" (836-012)
The 836-012 is a 1-1/4" PVC Schedule 80 Male Adapter with a male pipe thread (MPT) on one end and a slip (socket) inlet on the other. This fitting serves as the transition point between a solvent-welded PVC pipe run and a female-threaded connection — threading into any standard 1-1/4" FPT fitting while accepting 1-1/4" PVC pipe via solvent cement on the socket end. It is among the most frequently specified adapters in industrial and commercial PVC piping systems wherever a solvent-weld main must connect to threaded valves, equipment ports, unions, or mechanical components.
Manufactured from dark gray PVC Schedule 80 compound, this adapter meets ASTM D2464 for the male threaded end and ASTM D2467 for the slip socket end, with NSF/ANSI 61 certification covering potable water contact applications. The heavier Schedule 80 wall thickness provides elevated pressure capacity and enhanced chemical resistance compared to Schedule 40 equivalents — critical in industrial process environments, chemical handling lines, and high-demand commercial systems where the added wall stock at the threaded connection reduces the risk of stress cracking at the thread roots under sustained pressure or thermal cycling.
The MPT end engages any standard 1-1/4" female NPT-threaded fitting with no additional tools beyond hand-tight plus wrench turns per standard NPT assembly practice — PTFE thread tape or an appropriate pipe thread sealant should be applied to the male threads before assembly to ensure a leak-free joint. The slip socket end follows standard Schedule 80 solvent cement procedure: clean, prime, and cement the mating pipe surface using a Schedule 80-compatible PVC cement per ASTM D2564. Because the threaded connection is the governing end for pressure rating purposes, system working pressure should be specified against the MPT end's published rating — consult Spears' technical data sheet for the confirmed working PSI at the 1-1/4" Schedule 80 male adapter before finalizing system design.
Specifications
| Attribute | Detail |
|---|---|
| Part Number | 836-012 |
| Manufacturer | Spears Manufacturing |
| Size | 1-1/4" |
| Connection Type | MPT (Male Pipe Thread) × Slip (Socket) |
| Schedule / Class | Schedule 80 |
| Material | PVC (Polyvinyl Chloride) |
| Color | Dark Gray |
| Threaded End Standard | ASTM D2464 |
| Socket End Standard | ASTM D2467 |
| Potable Water Listed | NSF/ANSI 61 |
| Joining Method — Slip End | Solvent Cement (ASTM D2564) |
| Joining Method — MPT End | Threaded (PTFE tape or thread sealant recommended) |
| Governing Pressure End | MPT End (verify PSI from Spears TDS) |
| Thread Type | NPT (National Pipe Taper) |
Industries & Applications
- Industrial Process Piping — Transitioning solvent-welded PVC process water, chemical transfer, and reagent distribution lines to threaded valves, pump ports, and instrumentation fittings in corrosive or high-pressure service environments
- Chemical Handling — Connecting Schedule 80 PVC solvent-weld pipe runs to threaded ball valves, check valves, or tank fittings in acid, alkali, and industrial reagent systems where the added wall thickness of Schedule 80 is required at the threaded joint
- Commercial Plumbing — Adapting 1-1/4" solvent-weld supply or drain lines to threaded mechanical components, unions, or equipment connections in commercial facilities
- Water Treatment & Purification — Transitioning between solvent-weld distribution mains and threaded filter housings, dosing equipment, and instrumentation ports in municipal and industrial water treatment systems
- Irrigation & Agriculture — Connecting Schedule 80 PVC solvent-weld mains to threaded zone valves, backflow preventers, and pump manifold ports in high-pressure irrigation systems
- HVAC & Mechanical Systems — Adapting solvent-weld PVC pipe to threaded mechanical equipment connections in chilled water, cooling tower, and condenser water systems where PVC is specified for corrosion resistance
- Part #:
- 836-012
- Product Family:
- Sch 80 PVC
- Carton Qty:
- 10
- Pallet Qty:
- 3200
- Size:
- 1-1/4"
