Reducer Coupling, Slip x Slip PVC Schedule 80 1-1/2" x 1" (829-211)

The 829-211 is a 1-1/2" x 1" PVC Schedule 80 reducer coupling in a slip x slip configuration, providing a straight inline size reduction from a 1-1/2" pipe or fitting down to a 1" pipe or fitting via solvent cement bonding at both ends. The larger 1-1/2" slip socket accepts standard 1-1/2" pipe or a spigot-end fitting, while the 1" slip socket transitions the line down to the smaller diameter — all in a compact, inline profile without elbows, offsets, or directional changes.

The reducer coupling is one of the most fundamental fittings in any PVC piping toolkit, serving as the inline transition point wherever two different pipe sizes must be joined in a straight run. The 829-211 handles a one-step reduction — 1-1/2" down to 1" — which is among the most common size transitions in Schedule 80 systems, appearing frequently at pump discharge-to-distribution transitions, equipment outlet-to-mainline connections, header-to-lateral takeoffs, and wherever a larger supply line feeds a smaller distribution circuit.

The all-slip design bonds both ports permanently with solvent cement, producing a clean, monolithic inline joint with no mechanical connections, threaded interfaces, or O-rings to maintain. This makes the 829-211 well-suited for buried installations, enclosed mechanical spaces, and any system where joint permanence and long-term leak integrity are priorities.

Schedule 80's thicker wall construction delivers higher pressure ratings and greater resistance to mechanical stress and chemical exposure than Schedule 40, making this reducer coupling appropriate for demanding industrial, chemical, and process piping environments. The gray color is the standard Schedule 80 identifier, providing clear visual differentiation from white Schedule 40 components in mixed systems.

Solvent cement installation follows standard PVC practice — clean, prime, and cement both mating surfaces per ASTM D2564 procedures. Ensure the pipe is fully seated in each socket before the cement sets, as Schedule 80 socket fits leave minimal adjustment time once bonded.

Specifications:

Industries & Applications:

The 829-211 reducer coupling is used across virtually any Schedule 80 system requiring a straight, permanent inline size reduction from 1-1/2" to 1":

• Industrial Processing — Inline size reductions at pump discharge transitions, equipment outlet connections, and distribution header-to-lateral transitions in process piping where a permanent, compact solvent-weld reduction point is required
• Chemical Handling — Straight inline reductions in acid, alkali, and reagent distribution systems where transitioning from a 1-1/2" supply line to a 1" distribution or feed circuit requires a permanent, chemically resistant joint
• Water & Wastewater Treatment — Size transitions in treatment plant piping at pump discharge runs, filter inlet connections, and distribution manifolds where a straight inline reduction from 1-1/2" to 1" is needed in a fully solvent-welded assembly
• Irrigation & Agriculture — Mainline-to-lateral transitions in pressurized field and greenhouse irrigation systems, stepping down from a 1-1/2" supply header to a 1" zone or lateral distribution line in a permanent installation
• Commercial & Industrial Plumbing — Inline reducer connections in cold water supply, equipment feed lines, and mechanical room piping where a straight 1-1/2" to 1" transition is required in Schedule 80 construction
• Aquaculture & Aquatics — Size reductions in recirculating system headers, pump discharge lines, and filter plumbing where a compact, permanent inline transition from 1-1/2" to 1" is needed
• Pool & Spa — Inline size transitions in commercial pool mechanical room piping at pump discharge, filter connections, and chemical feed distribution points
• HVAC & Cooling Systems — Straight inline reductions in chilled water and process cooling distribution circuits where a 1-1/2" supply header transitions to a 1" secondary circuit or equipment feed line