EN 15091-2013 pdf download.Sanitary tapware – Electronic opening and closing sanitary tapware.
7.5.2.3 Procedure for flow rate I Impact force test
For the measurement of flow rate!impact force, the tapware is to be adjusted and operated in accordance with the manufacturer’s information, depending on the valve design type.
To set the dynamic pressures and measure the impact force, the tapware shall be held in an open position.
7.5.2.4 Procedure for flow rate I volume test
For the measurement of the flow rate I volume according to the flow rate curve, the adjustment of the tapware is not modified, regarding to the precedent test.
The flush time is to be taken from the start of activation.
The measurement is to be taken by simultaneously recording pressure and flow rate as a function of time. The volume can be measured by continuous recording of the flow curve.
To check the requirements in accordance with Figure 21, depending on the valve design type according to 7.2, the course of the flush flow rate curve in relation to time is evaluated from the diagrams which have been recorded during the test.
7.5.2.5 Test apparatus
The test apparatus shall be in accordance with EN 12541.
7.5.2.6 Impact force measuring instrument
The calibration of the impact force measuring instrument shall be in accordance with EN 12541.
7.5.2.7 Definitions
Qmin minimal flush flow rate to be achieved or exceeded after 2 s of operation
Q5 significant flush flow rate; 0.85 X Qmin
T1 time period during which Q5 for servo-controlled hydraulic flushing valves in accordance with 7.2.1.1 shall be maintained to obtain a volume of water supplied of 6.1.
7.5.3 Testing of the flow rate I Impact force at lower dynamic pressure
7.5.3.1 Procedure
The procedure takes place in accordance with 7.5.2.3.
7.5.3.2 Requirements for flush flow rate Impact force for valves ON 20
For a set dynamic pressure of (0,12’ 0.005) MPa ((1,2’ 0.05) bar), the impact force and flush flow rate (Qmin) shall correspond at minimum with the values in the lower dynamic pressure range given in Table 22.
7.5.3.3 Requirements for flush flow ratelimpact force for valves DN 25 and DN 32
For a set dynamic pressure of (0,08k 0.005) MPa ((0,8k 0.05) bar), the impact force and flush flow rate (Qmin) shall correspond at minimum with the values in the lower dynamic pressure range given in Table 22.
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EN 15091 :2013 (E)
7.5.4 Testing of the flow rate I Volume at lower dynamic pressure
7.5.4.1 Procedure
Testing in the lower flow pressure range is performed in accordance with Figure 21. In a graphic representation. points A-E, M, N are recorded and their conformity with the requirements in Table 21 is checked, depending on the valve design type.
Flow pressure, flush flow rate and time shall be recorded.
The flush times shall be evaluated in accordance with Table 21. depending on valve design type.
7.5.4.2 Requlremegnts for WC flushing valve DN 20
For a set dynamic pressure of (0,12” 0.005) MPa ((1,2”’ 0.05) bar), the flush flow rate, flush water volume and flush time shall correspond with the following requirements:
Class 6 – WC flushing valves (intended for the release of 6 I or 6 Ito 9 I):
The flush flow rate (Qmin) shall correspond at Point H/H1 of the diagram (Figure 21) at minimum with the values in the lower dynamic range provided in Table 22.
After a flush time ‘1 or T4 in Table 22, the measured flow rate shall be at least the significant flush flow rate (Qs)’ The measured flow rate may fall below the significant flush flow rate (Qs) after point M of the diagram (Figure 21).
The flush water volume shall not be less than 6 I and shall not exceed 6,6 I.
The flush times shall be evaluated in accordance with Table 22, depending on the valve design type. Class 9 – WC flushing valves (intended for the release of 9 I):
The flush flow rate (Qmin) shall correspond at Point H/H1 of the diagram (Figure 21) at minimum with the values In the lower dynamic range provided in Table 22.
After a flush time T2 or T5 in Table 22, the measured flow rate shall be at least the significant flush flow rate (Q5). The measured flow rate may fall below the significant flush flow rate (Q5) after point M of the diagram (Figure 21).
The flush water volume shall not be less than 9 I and shall not exceed 9,9 I.
The flush times shall be evaluated in accordance with Table 22, depending on the valve design type.
7.5.4.3 Requirements for WC flushing valves DN 25 and DN 32
For a set dynamic pressure of (0,08”’ 0.005) MPa ((0,8”’ 0.05) bar), the flush flow rate, flush water volume and flush time shall correspond with the following requirements.
• Class 6 -WC flushing valves (Intended for the release of 6 I or 6 Ito 9 I):EN 15091-2013 pdf download.