1-1/2" Male Adapter, MPT x Slip PVC Schedule 80 (836-015)

The 836-015 is a 1-1/2-inch Schedule 80 PVC male adapter with a male pipe thread (MPT) connection on one end and a slip (socket) connection on the other. Both ends are the same 1-1/2-inch nominal size — this is a straight connection-type transition fitting with no size reduction. The fitting transitions a permanently solvent welded Schedule 80 PVC pipe run to a male NPT threaded end that inserts directly into a female NPT threaded port on valves, pumps, filter housings, equipment nozzles, and fittings. The slip socket end receives the upstream pipe for permanent solvent weld assembly; the MPT end is the male external thread that threads into the mating female connection.

Distinguishing the 836-015 male adapter from the 835-015 female adapter is the most critical product selection decision in the Schedule 80 PVC adapter category, and the most common source of mismatched orders. The 836-015 MPT end is a male external thread — it inserts outward into a female threaded port that surrounds and engages it. The 835-015 FPT end is a female internal thread — it receives a male threaded fitting that inserts into it. Selecting the correct adapter requires confirming the gender of the mating connection: if the equipment port, valve body inlet, or fitting that the adapter must connect to has internal female threads, the 836-015 male adapter is correct; if the mating connection has external male threads that must insert into something, the 835-015 female adapter is correct. Getting this right at the point of ordering eliminates the most prevalent return scenario in PVC adapter procurement.

At 1-1/2 inches, the 836-015 is among the most widely used Schedule 80 PVC adapter sizes across industrial, commercial, and residential piping. The 1-1/2-inch MPT thread form is encountered across a broad range of equipment with female NPT ports: gate valve body inlets, globe valve connections, union body ports, filter vessel nozzles, tank outlet fittings, strainer housings, and a wide range of chemical process equipment where the internal female thread accepts the male adapter's external thread directly. The slip socket pipe end creates a permanent, pressure-rated joint with the upstream Schedule 80 PVC pipe run, while the MPT end threads into the downstream female port with PTFE thread tape or appropriate thread sealant for a leak-resistant, pressure-rated assembled connection.

The Schedule 80 construction of the 836-015 distinguishes it from Schedule 40 male adapters used in lower-pressure or non-industrial service. The additional wall thickness of Schedule 80 provides higher pressure rating capability, greater resistance to mechanical damage at the threaded end during assembly and service, and the consistency of gray PVC construction throughout a Schedule 80 piping system where mixing schedules introduces visible inconsistency and potential specification non-compliance. For applications where Schedule 40 white PVC is appropriate throughout the system, the 436-series Schedule 40 male adapter provides the same connection-type transition function at a lower pressure rating.

The slip socket end is manufactured and dimensioned to ASTM D2467 standards for Schedule 80 PVC socket fittings; the MPT end conforms to ASTM D2464 for Schedule 80 PVC threaded fittings. Thread form conforms to ANSI/ASME B1.20.1 for NPT compatibility across manufacturers and mating female ports. The fitting is manufactured from virgin PVC compound conforming to ASTM D1784 Cell Classification 12454.

Specifications:

Pressure rating is for water service at 73°F. Both ends are the same 1-1/2-inch nominal size — no governing differential between ends. Derate for elevated temperatures and aggressive chemical service per manufacturer guidelines. Thread the MPT end into female NPT ports with PTFE thread tape or appropriate thread sealant — do not overtighten large Schedule 80 PVC male threads into female ports; hand tight plus one to two turns with a wrench is appropriate for most service conditions. Solvent weld the slip end per standard Schedule 80 PVC cement procedures and allow full cure before pressurizing.

Industries & Applications:

The 836-015 Schedule 80 male adapter is a standard transition fitting across industrial, chemical, commercial, and residential piping wherever 1-1/2-inch Schedule 80 PVC pipe runs must terminate at or connect into female NPT threaded ports on valves, pumps, filter housings, and equipment:

• Valve Connections — Pipe-to-valve connection-type transitions on 1-1/2-inch Schedule 80 PVC lines where gate valves, globe valves, ball valves, and check valves have female NPT body inlets that accept the male adapter's MPT end directly — one of the broadest application categories for this adapter size, spanning isolation valves, throttling valves, and backflow prevention assemblies across industrial, commercial, and utility piping
• Pump Connections — Terminating 1-1/2-inch Schedule 80 PVC suction and discharge lines at pump body inlet and outlet ports where female NPT pump connections receive the MPT end directly; the inverse of the 835-015 female adapter application at pump connections where the pump body instead has male NPT ports requiring a female adapter
• Swimming Pool & Spa Equipment — Connection-type transitions on 1-1/2-inch Schedule 80 PVC pool and spa recirculation piping at pump body inlets and outlets, filter vessel nozzles, heater connections, and valve body ports where female NPT equipment connections accept the male adapter's external thread — a standard fitting in Schedule 80 pool equipment room piping where the correct adapter gender depends on the specific equipment connection type
• Chemical Processing & Water Treatment — Connection transitions on 1-1/2-inch Schedule 80 chemical feed, chlorination, acid dosing, and reagent distribution lines where chemical equipment nozzles, metering pump inlets, and treatment skid ports have female NPT connections that receive the MPT end of the adapter at the terminus of the permanent solvent weld pipe run
• Filter & Strainer Connections — Terminating Schedule 80 PVC supply lines at filter housing and strainer body inlet and outlet nozzles where 1-1/2-inch female NPT ports accept the male adapter's external thread — particularly common on filter housings and Y-strainers where the vessel body nozzle is female threaded and the connecting pipe run is solvent weld PVC
• Tank & Vessel Outlet Connections — Transitioning 1-1/2-inch Schedule 80 PVC lines from chemical storage tank outlets, process vessel drain connections, and reservoir outlet nozzles where the vessel fitting or tank outlet is female NPT threaded and the downstream pipe run is permanently routed Schedule 80 PVC requiring a solvent weld connection at the adapter's slip end
• Industrial Process Piping — Connection-type transitions on 1-1/2-inch Schedule 80 process headers, utility water lines, and chemical distribution runs at equipment connections, control valve inlets, and inline instrument housings where female NPT threaded inlet ports receive the male adapter's external thread at the terminus of the permanently routed pipe run
• Agricultural & Irrigation Systems — Pipe-to-equipment transitions on pressurized 1-1/2-inch Schedule 80 irrigation and pump discharge lines connecting to female NPT valve bodies, filter housings, and flow control equipment at system service and control points where the equipment connection is female threaded and the upstream pipe run is permanent solvent weld Schedule 80 PVC