ASTM D2466

Applies to: Socket-type PVC pressure fittings in Schedule 40 wall thickness for potable water, irrigation, drainage, and low-pressure chemical service at temperatures to 140 °F (60 °C); pressure ratings per pipe diameter.

Does NOT cover: CPVC or elevated-temperature service above 140 °F (use ASTM F439); Schedule 80 PVC fittings (ASTM D2467); threaded PVC fittings; non-pressure drainage fittings (ASTM D3311).

• PVC compound per ASTM D1784 Cell Class 12454 (standard PVC-U)
• Socket dimensions and tolerances for interference-fit solvent-cement joint
• Short-term hydrostatic burst test (≥4× working pressure)
• Long-term sustained pressure test (1000 hours)
• NSF 61 certification for potable water contact
• Color and marking: pipe size, material designation, fitting type

ASTM D2466 Schedule 40 PVC socket fittings are ubiquitous in water treatment, irrigation, and building services. They rely on solvent-cement joining (ASTM D2564) which creates a chemical weld bond through partial dissolution of both PVC surfaces — properly made solvent-cement joints are stronger than the fitting body itself.

Engineering note: Engineers must match fitting schedule to pipe schedule — a Schedule 80 pipe inserted into a Schedule 40 socket creates a wall-thickness mismatch that undermines socket engagement and weakens the joint. For temperatures above 100 °F (38 °C) or chemical service, apply the published PVC temperature derating factor (approximately 50% pressure reduction at 140 °F) and verify the chemical compatibility of PVC against the specific process fluid before specifying.