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Plumbing Fixture Pipe Sizes Guide

The document provides minimum trap diameters and fixture unit values for various plumbing fixtures. It specifies the minimum trap diameter and fixture unit values for water closets, urinals, floor drains, shower baths, bathtubs, bidets, lavatories, sinks, and drinking fountains for both private and public installations. It also specifies the minimum size of vent pipes and water supply pipes for each fixture type.

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ren salazar
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185 views1 page

Plumbing Fixture Pipe Sizes Guide

The document provides minimum trap diameters and fixture unit values for various plumbing fixtures. It specifies the minimum trap diameter and fixture unit values for water closets, urinals, floor drains, shower baths, bathtubs, bidets, lavatories, sinks, and drinking fountains for both private and public installations. It also specifies the minimum size of vent pipes and water supply pipes for each fixture type.

Uploaded by

ren salazar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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MINIMUM TRAP DIAMETER AND DFU VALUE / SIZE OF WATER SUPPLY AND WSFU VALUE

DFU
Min. trap dia.

WATER CLOSET

76mm (3")

WSFU
Water supply pipe
dia.

Private

Public

4 DFU,
4"

6 DFU,
WATER CLOSET
4"

Flush tank
Flush valve
URINAL

Private

Public

Min. Size of vent

Flush tank

12mm dia. (1/2")

51mm dia (2")

Flush valve

25mm dia. (1'')

10

51mm dia (2")

URINAL

wall mounted

51mm dia (2")

6 DFU

wall mounted

19mm (3/4')

stall

51mm dia (2")

6 DFU

stall

19mm (3/4')

trap arm

51mm dia (2")

3 DFU

trap arm

FLOOR DRAINS

51mm dia (2")

2 DFU

FLOOR DRAINS

SHOWER BATH

51mm dia (2")

2 DFU

SHOWER BATH

12mm dia. (1/2")

38mm dia (1 1/2'')

BATHTUB

38mm dia (1 1/2'')

2 DFU

BATHTUB

12mm dia. (1/2")

38mm dia (1 1/2'')

BIDET (Sitz Bath)

38mm dia (1 1/2'')

2 DFU

BIDET (Sitz Bath)

12mm dia. (1/2")

LAVATORY (wash basin)

12mm dia (1/2'')

Kitchen sink

38mm dia (1 1/2'')

Bar sink

38mm dia (1 1/2'')

Laundry tub

38mm dia (1 1/2'')

Slop sink

38mm dia (1 1/2'')

10

Scullery sink

38mm dia (1 1/2'')

DRINKING FOUNTAIN

12mm dia. (1/2")

LAVATORY (wash basin)


set

38mm dia (1 1/2'')

2 DFU

single

38mm dia (1 1/2'')

1 DFU

38mm dia (1 1/2'')

2 DFU

38mm dia (1 1/2'')

2 DFU

SINKS

each head

32mm dia (1 1/4'')

SINKS

1. Kitchen sink (residential)


51mm min waste pipe
2. Bar Sink (commercial)
51mm min waste pipe
3. Bar sink (private)

38mm dia (1 1/2'')

1 DFU

38mm dia (1 1/2'')

3 DFU

5. Laundry tub

38mm dia (1 1/2'')

2 DFU

6. Service sink (slop)

51mm dia (2")

3 DFU

7. Sink (clinic); flushing Rim

76mm (3")

6 DFU

32mm (1 1/4'')

1 DFU

38mm min waster pipe


4. Sink (commercial, industrial,
instiitutional)
58mm min waste pipe

DRINKING FOUNTAIN

32mm (1 1/4'')

each head

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