1 Scope
This European Standard specifies:
-
— the dimensional, leaktightness, mechanical and hydraulic characteristics with which shower hoses shall comply;
-
— the procedures for testing these characteristics.
This European Standard applies to shower hoses of any material used for ablutionary purposes and intended for equipping and supplementing
sanitary tapware for baths and showers.
This European Standard applies to shower hoses connected downstream of the obturator of the tapware.
Hoses which are an integral part of sanitary tapware (sink and wash basin mixing valves)
or hoses intended to connect sanitary tapware to the water supplies are not covered
by this European Standard.
Details of pressures and temperatures are given in Table 1.
Table 1
—
Conditions of use/Classifications
|
Water Supply system
|
Operating range of shower hoses
|
Flow rates
|
|
|---|---|---|---|
|
Limits
|
Recommended
|
See Table 3
|
|
|
Type 1
see Figure 1
|
Dynamic Pressure
0,05 MPa to 0,5 MPa
0,5 bar to 5 bar
|
Dynamic Pressure
(0,1 to 0,3) MPa
(1,0 to 3,0) bar
|
Min. 0,42 l/s (25,2 l/min)
at 0,3 + 0,02 MPa (3 + 0,2 bar)
|
| Dynamic Pressure | Dynamic Pressure | Class E | |
| Type 2 |
(0,01 to 0,2) MPa
(0,1 to 2) bar
|
(0,02 to 0,10) MPa
(0,2 to 1,0) bar
|
0,06 l/s < Q < 0,18 l/s (3,6 l/min < Q < 10,8 l/min.)
at 0,01 MPa (0,1 bar)
|
| see Figure 2 | Class H | ||
| 0,18 l/s ≤ Q (10,8 l/min ≤ Q) at 0,01 MPa (0,1 bar) | |||
| Temperature | T ≤ 70°C | T ≤ 42°C | |
Figure 1
—
Type 1 Water supply system with a pressure range of (0,05 – 1,0) MPa (0,5 - 10) bar
| 1 | Cold water |
| 2 | Hot Water |
| 3 | Mains supply pipe (Supply pressures up to 10 bar) |
| 4 | Water heate |
Figure 2
—
Type 2 Water supply system - with a pressure range of (0,01 - 1.0) MPa, (0,1 - 10)
bar. A vented domestic hot water and cold water supply system incorporating gravity
hot water, mains cold water and alternative gravity cold water supply to sanitary
appliances
| 1 | cold water storage cistern (cover omitted for clarity) |
| 2 | warning pipe |
| 3 | vent pipe |
| 4 | hot water cylinder |
| 5 | alternative cistern fed cold supply to sanitary appliances |
| 6 | to boiler |
| 7 | mains supply pipe (Supply pressures up to 10 bar) |