SASO 1473 沙特马桶标准 - 图文

SASO 1473/2014

CERAMIC SANITARY APPLIANCES -

WESTERN WATER CLOSETS

CERAMIC SANITARY APPLIANCES -

WESTERN WATER CLOSETS

Date of SASO Board of Directors’ Approval 1435-06-15(H) :(2014-04-15) Date of Publication in the Official Gazette 1435-08-01(H) :(2014-05-30) Date of Enforcement of this Standard 1436-08-01(H) :(2015-05-20)

SAUDI STANDARD SASO 1473/2014

CERAMIC SANITARY APPLIANCES -

WESTERN WATER CLOSETS

1.

SCOPE AND FIELD OF APPLICATION

This standard specifies requirements for materials, quality, performance, functional and connecting dimensions for vitreous china western water closet pans of wall-hung and floor-mounted types.

Note: Wherever the term of \

closets\

2. COMPLEMENTARY REFERENCES

The following referenced documents are indispensable for the application of

this document. For dated references, only the edition cited applies. For undated references, that latest edition of the referenced document (including any amendments) applies.

2.1 SASO 1025,“Ceramic Sanitary Appliances - General Requirements”.

2.2

SASO 1474, “Ceramic Sanitary Appliances - Methods of Test for Western Water Closets”.

2.3 SASO1257, “Sanitary Appliances - Flushing Water Tanks”. 2.4

SASO 1477, “Sanitary Appliances - Pressurized Flushing Devices”.

3. DEFINITIONSAND ABBREVIATIONS 3.1 Definitions The following definitions shall apply in this Standard:

3.1.1 Air gap: the unobstructed vertical distance, through the open atmosphere,

between the lowest opening of a water supply and the flood level of the fixture. 3.1.2

Anti-siphon fill valve: a valve that is used to supply water to a flush tank and has, on its discharge side, an air gap, integral mechanical backflow preventer, or vacuum breaker. It is operated by a float or similar device.

3.1.3

Blowout action: a means of flushing a water closet whereby a jet of water directed at the bowl outlet opening pushes the bowl contents into the upleg, over the weir, and into the gravity drainage system.

3.1.4

Blowout bowl: a non-siphonic water closet bowl with an integral flushing rim, a trap at the rear of the bowl, and a visible or concealed jet that operates with a blowout action.

3.1.5

Critical level (CL):the highest water level of a supply fitting at which back siphonage will not occur.

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SAUDI STANDARD SASO 1473/2014

3.1.6

Electro-hydraulic water closet: a water closet with a non-mechanical trap seal incorporating an electric motor and controller to facilitate flushing.

3.1.7 Fill time: the time from the instant the flush valve of a flush tank closes until

the instant the fill valve is completely shut off. 3.1.8 Fitting: a device that controls and guides the flow of water.

3.1.9 Fixture: a device that receives water, waste matter, or both and directs these

substances into a drainage. 3.1.10 Flood level: the level at which water will overflow a fixture. 3.1.11

Flush cycle: the complete operating sequence of a water closet in emptying its

contents, cleaning its inside surfaces, and refilling the water seal.

3.1.12 Flushing device: a device for delivering water into a water closet bowl. 3.1.13 Flush valve: a valve for discharging water from a flush tank into a water closet

bowl. 3.1.14 Flushometer tank: a flushing device that effectively enlarges the water supply

pipe immediately before the water closet bowl by being integrated within an accumulator vessel affixed and adjacent to the fixture inlet. 3.1.15

Flushometer valve: a flushing device attached to a pressurized water supply pipe that, when actuated, opens the pipe for direct flow into the fixture at a rate and in a quantity that enables proper operation of the fixture. The valve then gradually closes to provide trap reseal in the fixture and avoid water hammer.

Note: The pipe to which the flushometer valve is connected should be large enough to

enable delivery of water at a sufficient rate for proper operation.

3.1.16 Flushing surface: a surface that is visible after installation and is wetted

during operation of a water closet. 3.1.17

Gravity water closet: a vessel that stores a predetermined quantity of water and includes a flushing device to discharge water (plus some through-flow from the water supply line) into a water closet bowl.

Note:A common type of gravity water closet is a wall-hung vessel or a vessel close-coupled with the water closet bowl that is fitted with a fill valve and flush valve.

3.1.18

Gravity flush tank water closet: a water closet designed to flush the bowl with water supplied by gravity only.

3.1.19 Integral: a cast or formed part of a fixture, e.g., a trap, seat, or flush tank. 3.1.20 Low-profile tank: a tank on a water closet that employs a flushing device that is below the flood level of the water closet bowl.

3.1.21

Pressurized flushing device: a flushing device that is employed in non-gravity flushing systems and uses the water supply to create a pressurized discharge to flush fixtures.

Note: Flushometer tanks, flushometer valves, and electronically controlled

pressurized devices are examples of pressurized flushing devices.

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SAUDI STANDARD SASO 1473/2014

3.1.22 Pressure:

Flowing pressure- the pressure in a water supply pipe at the inlet to an open

valve. Static pressure- the pressure in a water supply pipe at the inlet of a closed

valve. 3.1.23 Rim: the unobstructed open edge of a plumbing fixture.

3.1.24 Sanitary: an aesthetic condition of cleanliness (not the state of being

microbiologically clean). 3.1.25 Siphonic action: the movement of water through a flushing fixture by creating a siphon to remove waste material.

3.1.26

Siphonic bowl: a water closet bowl that has an integral flushing rim, a trap at the front or rear, and a floor or wall outlet, and operates with a siphonic action (with or without a jet).

3.1.27 Spud: a fitting used to connect a flushing device to a water closet.

3.1.28 Trap: a fitting, device, or integral portion of a fixture that provides a liquid

seal that prevents the back passage of sewer gas without affecting the flow of wastewater. 3.1.29 Trap dip: the highest internal surface of the lowest part of a trap. 3.1.30

Trap seal depth: the vertical distance between (a) the weir and the trap dip; or

(b) if applicable, between the weir and the trap dip or the top edge of a jet

opening, whichever is higher.

3.1.31 Trim: parts made of materials other than china that are normally supplied with

a fixture, e.g., spuds, wall hangers, and flush valves (but not including fittings). 3.1.32

Washdown (washout) bowl: a water closet bowl that has an integral flushing rim and a floor or wall outlet and primarily operates with a non-siphonic action.

3.1.33 Water closet: a fixture with a water-containing receptor that receives liquid

and solid body waste and on actuation conveys the waste through an exposed integral trap into a drainage system. 3.1.34 Vitreous china: ceramic material fired at a high temperature to form a non-porous body with a maximum water absorption of 0.5% of the original weight

of the dry specimen. 3.1.35 Water surface: the surface of the still water in the well of a water closet when

the trap is filled to the weir. 3.1.36 Weir: the lowest internal surface of the highest part of a trap.

3.1.37 Well: a pocket that is open at the top and formed inside a water closet bowl at

the entrance to the trap.

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