1、STD-BSI BS EN IS0 3822-q-ENGL 1777 Lb24bbl Ob337bB T23 W BRITISH STANDARD Acoustics - Laboratory tests on noise emission from appliances and equipment used in water supply installations Part 4. Mounting and operating conditions for special appliances The European Standard EN IS0 38224 : 1997 has the
2、 status of a British Standard BS EN IS0 3822-4 : 1997 ICs 17.140.20, 91.140.60 zzggii i 5El!j AGG 3.4.3.2; 3.4.3.3; 3.4.3.4 shall be camed out at flow pressures of 0,3 MPa and 0,5 MPa. Additional tests are necessary in some cases when flow adjusters are incorporated into the appliance. Stop valves i
3、ncorporated into the appliance shall be fully open unless they are intended to be used as flow adjusters. Float operated valves used in cistern type water heaters shall be tested in accordance with 3.2. 3.4.3.2 Storage water heaters of the closed type a) If the water heater incorporates an integral
4、draw-off tap or mixing valve, it shall be tested in accordance with EN IS0 3822-2, including requirements for flow adjusters. b) Water heaters without an integrd draw-off tap or mixing valve, but incorporating some device which influences the flow rate or pressure of the water, such as a flow adjust
5、er, shall be tested with an adjustable low-noise flow resistance (see example given in EN IS0 3822-3) connected to the outlet. The adjustable lownoise flow resistance shall be set so that at a flow pressure of 0,s g in th extreme cold position. If the mixing valve incorporates a flow adjuster in the
6、 cold inlet, it shall be left as supplied. 3.5.2.2The hot water side shall be tested in accordance with clauses 4.1, (excluding 4.1 S), and 4.2 of EN IS0 3822-2, with the temperature setting in the extreme hot position. When testing the hot water side the flow adjuster shall be set at a flow pressur
7、e of 0,3 MPa with the mixing valve flow control fully open in the hot position so that the maximum flow rate, expressed in litres per second, through the hot side of the valve is equal to IA20 of the nominal heating power, expressed in kilowatts, of the heater with which the mixing valve is expected
8、 to be used. where the mixing valve is to be used with heaters of various heating powers the tests shall be carried out with the flow adjuster set according to both the maximum and minimum nominal heating power. Flow adjusters with a fixed setting or automatic function shall be left as supplied. Bef
9、ore repeating the test at a flow pressure of 0,5 MPa the flow adjuster shall be set at a flow pressure of 0,3 MPa to the flow rate specified above. Then increase the flow pressure to 0,5 MPa. 3.6 Mixing valves for overflow (open outlet) type water heaters 3.6.1 Mixing valves for overflow (open outle
10、t) type storage water heaters 3.6.1.1 Mounting conditions Mixing valves for overflow (open ouet) type storage water heaters shall have their inlet connected directly to the test pipe (see 3.1). In place of the heater tank or vessel, a by-pass shall be used. This by-pass shall be constructed of any s
11、uitable material and in such a way that additional noise production is unlikely and with the least practicable influence on flow rate. The bore of the by-pass tube throughout its length shall be not less than the nominal bore of the connections for the heater. 6 STD-BSI BS EN IS0 3822-q-ENGL 1777 Ib
12、Z4bb9 Ob33781 4b7 EN IS0 3822-4 : 1997 3.6.1.2 Operating conditions Generally the mixing valve shall be tested in accordance with clauses 4.1, (excluding 4.1 .3), and 4.3 of EN IS0 3822-2. Mixing valves having a blending device for temperature adjustment downstream of the flow control shall be teste
13、d in accordance with clause 4.2 of EN IS0 3822-2, with the temperature adjustment device in the cold position. Then operate the temperature adjustment device over its full range of adjustment, with the flow control fully open, to determine the maximum sound pressure level. Mixing valves with more th
14、an one outlet (for example bath and shower mixing valves) shall be tested separately for each outlet. If the mixing valve is supplied with a removable outlet accessory such as a shower hose, shower head, flow straightener etc., the test shall be carried out with this in place. Otherwise nothing shal
15、l be connected to the mixing valve outlet during the test. 3.6.2 Mixing valves for overflow (open outlet) type instantaneous water heaters 3.6.2.1 Mounting conditions Mixing valves for overflow (open outlet) type instantaneous water heaters shall be mounted according to 3.6.1.1. 3.6.2.2 Operating co
16、nditions The mixing valve shall be tested in accordance with clauses 4.1, (excluding 4.1.3, 4.1 S), and 4.3 of EN IS0 3822-2. Mixing valves having a blending device for temperature adjustment downstream of the flow control shall be tested in accordance with clause 4.2 of EN IS0 3822-2, with the temp
17、erature adjustment device in the cold position. Then operate the temperature adjustment device over its full range of adjustment, with the flow control fully open, to determine the maximum sound pressure level. Flow adjusters incorporated into the mixing valve to limit the maximum flow of hot water
18、shall be set at a flow pressure of 0,3 MPa with the mixing valve flow control fully open in the hot position so that the maximum flow rate, expressed in litres per second, through the hot side of the valve is equal to U120 of the nominal heating power, expressed in kilowatts, of the heater with whic
19、h the mixing valve is expected to be used. Where the mixing valve is to be used with heaters of various heating powers the tests shall be camed out with the flow adjuster set according to both the maximum and minimum nominal heating power. Flow adjusters with a fixed setting or automatic function sh
20、all be left as supplied. If the mixing valve is supplied with a removable outlet accessory such as a shower hose, shower head, flow straightener etc., the test shall be carried out with this in place. Otherwise nothing shall be connected to the mixing valve outlet during the test. 3.7 Fittings for t
21、he connection of household equipment Fittings for the connection of household equipment (washing machines, dish-washers, etc.,) shall be tested as in-line valves (see EN IS0 3822-3) or as draw-off taps (see EN IS0 3822-2), as applicable. 7 STD.BS1 BS EN IS0 3822-q-ENGL 1777 1b24bb7 Ob33782 3T3 m EN
22、IS0 3822-4 : 1997 3.8 Outlet fings 3.8.1 Mounting conditions Shower handsets shall be connected to the test pipe using the arrangement shown in annex D. Shower heads shall be connected to the test pipe using a straight pipe of length 300 mm and of the same nominal bore as the shower head connection.
23、 Other outlet fittings such as aerators, diverters, ball joints, flow controls, anti-backsiphonage valves, etc., shall be connected directly to the test pipe (see 3.1) using an adaptor complying with anno C. 3.8.2 Operating conditions The sound pressure levels of outlet fittings shall be measured at
24、 flow pressures of 0,3 MPa and 0,5 MPa and the flow rates shall be recorded. Outlet fittings such as ball joints, diverters, flow controls, anti-backsiphonage valves etc., which do not incorporate an atmospheric discharge accessory such as an aerator, shower head or handset, etc., shall be tested wi
25、th a low-noise flow resistance, complying with annex A, connected to their outlet using, if necessary, an adaptor complying with annex B. Diverters and spouts with diverters and/or flow controls shall always be tested with a low-noise flow resistance wndd in place of any interchangeable atmosphe-lc
26、discharge accessory, as descriuea above. therwise, when several outlet fittings are supplied assembled into a single unit, for example a flow control and/or ball joint with an aerator or shower head, they shall be tested as one outlet fitting. Flow controls without atmospheric discharge accessory sh
27、all always be tested with a Class A low-noise flow resistance complying with annex A. Adjustable outlet fittings shall be tested in the position giving the maximum sound pressure level. Diverters shall be tested in all positions of normal use. 4 Testtport The test report shall include the following
28、information: a) the information required by EN IS0 3822-1 ; b) the mounting of the appliance tested ; c) the fim pressures and flow-rates used, the outlet used and the maximum sound pressure levels obtained ; 8 STD*BSI BS EN IS0 3822-4-ENGL 1997 Lb24bb9 Ob33783 23T EN IS0 3822-4 : 1997 d) a descript
29、ion andior drawing of the appliance tested, including the type, nominal size, manufacturer and manufacturets number ; e) the number of the clauses in this part of EN 23822 relevant to the appliance and in accordance with which the tests were carried out, together with descriptions of any peculiariti
30、es obsetved ; 9 for float-operated valves, a description of the cistern used and the stopvalve, if any. 1 / 1 Union, taper seat 1 , U1 1 , complying with the requirements of IS0 49, galvanised 2 Long sweep bend 1 , G8, complying with the requirements of IS0 49, galvanised 3 Socket M2, 1 x 3/4, compl
31、ying with the requirements of IS0 49, galvanised 4 Adaptor, brass, complying with the requirements of annex C Figure 1 : Example of device for connecting outlet fittings to the horizontal test pipe 9 STD-BSI BS EN IS0 3822-q-ENGL 1997 m 1b24bb9 0b3378Li 17b EN IS0 3822-4 : 1997 Annex A (normative) L
32、ow-noise flow riesistances with calibrated flow rate A. General Two types of flow resistance are standardised. The details of each type are given in A.2 and A.3 respectively. The appliance sound pressure level Lap of the tiow resistances shall be less than 10 dB at a flow p-eWT8 of O,d MPs. Permissi
33、ble machining variations in dimensions without tolerance indication shall be in accordance with those specified for the medium series in IS0 2768. A2 Tubular type flow resistances Tubular type flow resistances shall comply with the appropriate requirements of figures A.1 to A.4 and table A.l. The bo
34、dy and tubes shall be made from brass. Rubber having a hardness of 75 f 5 IRHD in accordance IS0 48, shall be used for the seal. 10 STD-BSI BS EN IS0 3822-q-ENGL 1797 Lb24bb7 b33785 O02 EN IS0 3822-4 1997 Dimensions in millimetres X 18 Free length of the tubes - - 27 - i Figure Al : Tubular type flo
35、w resistance with calibrated flow rate * m * 11 STDOBSI BS EN IS0 3822-Y-ENGL 1777 LbZqbbS Ob3378b TY7 EN IS0 3822-4 : 1997 A.3 Strainer type flow resistances Strainer type flow resistances shall comply with the appropriate requirements of figures A.5 to A.9 and tables A.2 to A.4. Table A.2: Particu
36、lars of strainer type flow resistances Dimensions in millimetres iI f Figure A.2 : Arrangement of the tubes for resistances R25 and R33 Dimensions in millimetres Figure A.3: Arrangements of the tubes for resistances R42 and R50 Dimensions in millimetres Figure A.4: Arrangement of the tubes for resis
37、tance R63 12 STD-BSI BS EN IS0 3822-q-ENGL 1777 1b24bb7 b33787 785 M EN IS0 3822-4 : 1997 Dimensions in millimetres Figure AS: Strainer type flow resistance with internal thread M22 x 1 - 6H i3 STD-BSI BS EN IS0 3822-4-ENGL 1797 m Lb24bb9 Ob33788 811 EN IS0 3822-4 : 1997 Dimensions in millimetres Fi
38、gure 0208 f 02. - Detail in iflg. m-drvith ZA-S-B-C A.6: Strainer 1 s2kl+y type flow resistance with external thread M24 x I -60 14 STD-BSI BS EN IS0 3822-q-ENGL 1997 Lb24bb9 Ob33787 758 U EN IS0 3822-4 : 1997 Dimensions in millimetres L Gi4.7-y Figure A.7: Strainer type flow resistance with externa
39、l thread M28 x 1 - 6g * ul * 15 STD-BSI BS EN IS0 3822-4-ENGL 1997 lb24bb9 0b33770 V7T M EN IS0 3822-4 : 1997 Dimensions in millimetres 0 15 sh.rbrna sdetl puzeanesh lesh size 0.4 wirea02J R 0.2 JW *a1 O Figure A.8: Restrictor details for flow resistances in figures 115 and A.6 Table A.3: Details of
40、 holes in restrictor in figure A.8 Number of holes on ber of holes on 16 STD-BSI BS EN IS0 3822-9-ENGL 1797 1b24bb7 Ob33771 30b EN IS0 3822-4 : 1997 Dimensions in millimetres 1 J I I 816.7 0245 f OB5 Figure A.9: Restrictor details for flow resistance in figure A.7 Table A.4: Details of holes in rest
41、rictor in figure A.9 17 STD.BS1 BS EN IS0 3822-Y-ENGL 1997 H Lb24bbS Ob33792 242 EN IS0 3822-4 : 1997 r Designation Dimensions di d7 da h Adaptor AI - M24 x 1 M24 x 1 -6g 17 20,8 3 Adaptor Al - G1/2B IS0 228 - G1/2B 13 18 3,5 Adaptor Al - G3/4B IS0 228 - G3/4B 19 23,5 4,5 Annex B (normative) Adaptor
42、s for the connection of low-noise flow resistances with calibrated flow rate Adaptors shall comply with figure 8.1 and table 8.1 , or figure 8.2 and table 8.2. The adaptors shall be made of brass. Permissible machining vanations in dimensions without tolerance indication shall be in accordance with
43、those specified for the medium senes in IS0 2768. Rubber having a hardness of 75 f 5 IRHD, in accordance with IS0 48 shall be used for the seals shown in figures B.l and 8.2. Dimensions in millimetres Seal acrws I II I M281-6H Figure B.1: Adaptor with external thread (Al) for the connection of low-n
44、oise flow resistances with calibrated flow rate Table B.l: Dimensions of adaptors with external thread (Al) 18 STD-BSI BS EN IS0 3822-4-ENGL 1777 m 1b24bb9 b33773 3187 m EN IS0 3822-4 : 1997 Dimensions in millimetres M26x1-6H 928,2 1 Figure B.2: Adaptor with internal thread (A2) for the connection o
45、f low-noise flow resistances with calibrated flow rate Table 6.2: Dimensions of adaptors with internal thread (U) 19 Annex C (normative) Designation Adaptor A3 - M22 x 1 Adaptor A3 - GV2B Adaptor A3 - G3/4B Adaptors for the connection of outlet fMings Dimensions dl d7 Il I7 IR M22 x 1-6g 17 24 5 1,7
46、 IS0 228 - GlDB 15 29 10 2,5 IS0 220 - GW4B 17 29 10 2,5 Adaptors shall comply with figure C. 1 and table C. 1, or figure C.2 and table C.2. The adaptors shall be made of brass. Permissible machining variations in dimensions without tolerance indication shall be in accordance with those specified fo
47、r the medium series in IS0 2768. Dimensions in millimetres 1 I_- IS0 228 - G 3/ B Wdth across flats 27 I II Figure C.1: Adaptor with external thread (A3) for the connection of outlet fmings Table C.l: Dimensions of adaptors with external thread (A3) 20 STD-BSI BS EN IS0 3822-4-ENGL 1777 m 1b24bbS Ob
48、33775 T5L m EN IS0 3822-4 : 1997 Dimensions in millimetres Width across Figure C.2: Adaptor with internal thread (A4) for the connection of outlet fwings Table C.2: Dimensions of adaptors with internal thread (A4) 21 - STD-BSI BS EN IS0 3822-q-ENGL 1777 LbZqbbS 0633776 778 D EN IS0 3822-4 : 1997 Ann
49、ex D (nonnative) Arrangement for testing shower handsets The arrangement shall be in accordance with figure D. 1. The two ends of the connecting hose are identical. One end is connected to the test pipe (see 3.1), the other is connected to the shower handset using, if necessary, an adaptor complying with annex C. Detail specification of the component parts of the hose assembly shall comply with figures D.2 and 0.3, and table D.1. Dimensions in millimetres Hose union nut Figure 0.1: Connecting hos
