BS EN 1112:2008

Sanitary tapware. Shower outlets for sanitary tapware for water supply systems type 1 and type 2. General technical specification. | Status: Current, Confirmed

1 Scope This European Standard specifies:

• — the dimensional, leaktightness, mechanical, hydraulic and acoustic characteristics with which shower outlets shall comply;
• — the procedures for testing these characteristics.

This European Standard applies to shower heads and hand showers 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 heads and hand showers connected downstream of the obturator of the tapware. Integral and remote spray attachments incorporated in tapware (e.g. sink and wash basin mixing valves) are not covered by this standard. Details of pressures and temperatures are given in Table 1. Table 1 — Conditions of use/Classifications Water Supply system Operating range of shower outlets Flow rate classes Acoustics Marking Limits Recommended See clause 12.0 See clause 6.0 Type 1 see Figure 1 Dynamic Pressure (0,05 to 0,5) MPa (0,5 to 5) bar Dynamic Pressure (0,1 to 0,3) MPa (1,0 to 3) bar ZZ (0,025 ≤Q < 0,12) l/s (1,5 ≤ Q < 7,2) l/min Group I Group II for example I A II B Z (0,12 ≤ Q < 0,20) l/s (7,2 ≤Q < 12) l/min A (0,20 ≤ Q < 0,25) l/s (12 ≤Q < 15) l/min S (0,25 ≤ Q < 0,33) l/s (15 ≤ Q < 20) l/min B (0,33 ≤ Q < 0,42) l/s (20 ≤ Q < 25) l/min C (0,42 ≤ Q < 0,50) l/s (25 ≤Q < 30) l/min D (0,50 ≤ Q < 0,63) l/s (30≤ Q < 38) l/min Type 2 see Figure 2 Dynamic Pressure (0,01 to 0,2) MPa (0,1 to 2) bar Dynamic Pressure (0,02 to 0,1) MPa (0,2 to 1) bar E (0,06 ≤ Q < 0,14) l/s (3,6 ≤Q < 8,4) l/min at (0,01) MPa (0,1 bar) (unclassified) H (Q≥ 0,14) l/s (Q ≥ 8,4) l/min at (0,01) MPa (0,1 bar) Temperature T ≤ 70°C T < 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 heater 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)