Match the coupling's inner diameter (ID) to the outer diameter (OD) of your PVC pipe. For example, a pipe with a 20mm OD generally fits a 20mm (≈3/4") ID socket coupling. When in doubt, measure your existing pipe OD with calipers and select the matching ID size from the variant options above.

PVC socket couplings of this type are generally rated for cold-water working pressures in the range of 150–300 PSI depending on pipe schedule and diameter. Larger diameters typically carry lower pressure ratings. Always verify the pressure rating against your system requirements before installation.

PVC is inherently resistant to corrosion and moisture, making it suitable for outdoor and underground pipe repair in most cases. For prolonged UV exposure above ground, wrapping or painting the fitting is generally recommended to prevent UV degradation over time.

Yes. These straight socket couplings are designed to be compatible with standard Schedule 40 PVC pipe dimensions. The slip-fit socket accepts the pipe OD and is secured with PVC solvent cement for a permanent, leak-free joint in water supply and irrigation systems.

No special tools are required. You will need PVC primer, solvent cement, a pipe cutter or hacksaw, and a clean rag. Clean and dry the pipe end, apply primer, coat both surfaces with cement, insert the pipe into the socket with a slight twist, and hold for 30 seconds. Full cure typically takes 1–2 hours before pressurizing.

Standard PVC fittings are generally rated for cold water only (typically up to 140°F / 60°C under low pressure). For hot water applications, CPVC or other heat-rated fittings are recommended. Please confirm your system's temperature requirements before ordering.

A coupling creates a permanent solvent-welded joint and cannot be disassembled without cutting the pipe. A union fitting allows the joint to be disconnected for maintenance or equipment removal. Use a coupling for permanent pipe runs and a union where future access may be needed.