Male Adapter, MPT x Slip PVC Schedule 80 2-1/2" (836-025)

The 836-025 is a 2-1/2" PVC Schedule 80 male adapter with a male pipe thread (MPT) inlet and a slip (socket) outlet, designed to transition a male-threaded PVC pipe end or fitting into a solvent-welded socket connection. The MPT inlet threads directly into any standard 2-1/2" female pipe thread (FPT) port — on a valve, pump, equipment nozzle, or threaded fitting — while the slip outlet accepts a standard 2-1/2" PVC pipe end joined with solvent cement and primer per ASTM D2564, continuing the pipeline as a permanent, pressure-rated solvent-welded run downstream of the threaded connection point.

Manufactured from rigid, dark gray PVC compound conforming to ASTM D1784 cell classification requirements, the Schedule 80 wall construction delivers higher pressure ratings and greater mechanical strength than Schedule 40 equivalents at the same pipe size. This makes the 836-025 the correct choice for high-pressure chemical lines, industrial process piping, and any Schedule 80 system where the transition point between a female-threaded port and a solvent-welded pipe run must maintain full Schedule 80 pressure integrity throughout. PTFE thread tape or appropriate thread sealant should be applied to the MPT threads before assembly to ensure a leak-resistant seal at the threaded inlet.

At the 2-1/2" size, the male adapter is a large-diameter specialty fitting that appears in a specific and well-defined set of industrial and municipal applications — primarily at pump suction and discharge connections, large valve outlets, strainer assemblies, and equipment nozzles where a 2-1/2" female-threaded port must transition to a solvent-welded distribution or process line. The 2-1/2" pipe size is less common than neighboring 2" and 3" sizes but appears with consistent regularity in Schedule 80 chemical, industrial, and municipal systems — buyers sourcing this adapter are almost always matching an existing system specification rather than selecting from a range of options. The male adapter threads into a female port — making correct gender identification before ordering essential at this large pipe size, where a misorder represents a meaningful project delay and procurement cost. Buyers who need to transition a male-threaded pipe end or fitting into a female-threaded port should order the female adapter (835-series) instead, and this distinction should be confirmed before placing an order.

Specifications:

Industries & Applications:

• Industrial Process Piping — Transitioning 2-1/2" female-threaded equipment ports, large valve bodies, and pump connections into solvent-welded Schedule 80 pipe runs in high-pressure chemical distribution, cooling water, and process fluid systems where full Schedule 80 pressure integrity must be maintained at the transition point
• Chemical Processing — Corrosion-resistant thread-to-slip transitions at vessel nozzles, chemical feed equipment, and pump assemblies in acid, caustic, and aggressive fluid service where all-PVC Schedule 80 construction eliminates metal corrosion, galvanic incompatibility, and contamination concerns at the connection point
• Municipal Water & Wastewater — Connecting 2-1/2" female-threaded pump flanges, valve outlets, and equipment nozzles to solvent-welded Schedule 80 distribution and process piping at pump stations and treatment facilities where large-diameter threaded-to-solvent transitions are required at equipment interfaces
• Irrigation & Agriculture — Transitioning female-threaded pump discharge and valve connections into solvent-welded 2-1/2" Schedule 80 mainline pipe runs in high-pressure large-scale irrigation systems where the 2-1/2" pipe size serves a primary distribution or trunk main function
• HVAC & Mechanical — Connecting female-threaded mechanical equipment ports and large valve bodies to solvent-welded Schedule 80 chilled water and condenser water pipe runs in commercial mechanical rooms where the 2-1/2" size bridges major distribution circuits
• Aquaculture & Water Treatment — Thread-to-slip transitions at large pump connections, filter equipment nozzles, and valve assemblies in recirculating system piping where downstream runs are solvent-welded 2-1/2" Schedule 80 PVC and the upstream equipment interface is female-threaded