Fixtures Trap Sizes
Recommended drain trap size for different types of fixtures:
| Fixture | Trap Size (in) |
|---|---|
| Bathtub | 1 1/2 |
| Bidet | 1 1/2 |
| Dishwasher | 1 1/2 |
| Drinking fountain | 1 1/4 |
| Floor drain | 2 |
| Kitchen sink | 1 1/2 |
| Laundry tub | 1 1/2 |
| Lavatory | 1 1/4 |
| Public toilet | integrated in the fixture |
| Shower | 2 |
| Toilet | integrated in the fixture |
| Urinal | 2 |
| Washing machine | 2 |
- 1 in = 25.4 mm
Related Topics
• Water Systems
Design of hot and cold water service and utility systems with properties, capacities, sizing of pipe lines and more.
Related Documents
ASTM B306 Copper Tubes for Drain, Waste and Vent - Dimensions and Working Pressures
Dimensions of copper tubes ASTM B306 Drain Waste and Vent - DWV.
ASTM D2661 - Acrylonitrile-Butadiene-Styrene (ABS) Schedule 40 Plastic Drain, Waste, and Vent Pipe and Fittings
Nominal pipe size, outside diameter, thickness and weight.
ASTM D2729 - Poly(Vinyl Chloride) (PVC) Sewer Pipe - Dimensions
Dimensions of Poly(Vinyl Chloride) (PVC) Sewer Pipes with belled end.
Cast Iron Soil Pipes - Dimensions
Dimensions of cast iron soil pipes.
Cleanouts in Draining Systems
Cleanouts provides access to the sewer for rodding.
DFU - Drainage Fixture Units
DFU are used to calculate the drainage flow from fixtures and the required capacities of sewer service systems.
Drain Pipes and Vent Stacks
Drain pipes and vent stack sizing.
Drain Waste and Vent Pipes - Hanger Spacing
Support of Drain Waste and Vent - DWV - pipes.
Draining Systems - Main Vents
Vents in draining systems protects traps against pressure differences that could cause them to siphon or blow out .
Drains and Sewers - Capacities vs. Size
Drainage Fixture Units (DFU) connected to building drains and sewers.
Sanitary Piping - Drainage Fixtures Unit Loads
Maximum Drainage Fixture Unit - DFU - loads in sanitary piping systems.
Septic Systems
Septic systems handles waste from drain systems.
Sewer Pipes - Capacities vs. Slope
Carrying capacities of sewer and wastewater pipes - gpm and liter per second.
Waste Water Piping - Flow Capacities vs. Dimensions
In sewage piping and pumping systems the fluid flow rate must be kept within certain limits to avoid operating problems.