1、BRITISH STANDARD BS6340-1: 1983 Shower units Part1: Guide on choice of shower units and their components for use in private dwellings UDC696.144.2BS6340-1:1983 This British Standard, having been prepared under the directionof the Building ServicesStandards Committee,was published underthe authority
2、of the Board ofBSI and comes into effect on 29July1983 BSI 03-1999 The following BSI references relate to the work on this standard: Committee reference SEB/37 Draft for comment80/11810DC ISBN 0 580 11949 1 Committees responsible for this British Standard This British Standard was published under th
3、e direction of the Building Services Standards Committee SEB/-. Its preparation was entrusted to Technical Committee SEB/37 upon which the following bodies were represented: Association of Manufacturers of Domestic Electrical Appliances Association of Manufacturers of Domestic Unvented Supply System
4、s Equipment British Bath Manufacturers Association British Ceramic Tile Council British Gas Corporation British Plastics Federation Chartered Institution of Building Services Consumer Standards Advisory Committee of BSI Consumers Association Council of British Ceramic Sanitaryware Manufacturers Depa
5、rtment of Health and Social Security Department of the Environment (Building Research Establishment) Department of the Environment (PSA) Disabled Living Foundation Flat Glass Manufacturers Association Institute of Plumbing Institution of Gas Engineers National Brassfoundry Association National Feder
6、ation of Building Trades Employers National House-Building Council National Water Council Plastic Bath Manufacturers Association Royal Institute of British Architects Amendments issued since publication Amd. No. Date of issue CommentsBS6340-1:1983 BSI 03-1999 i Contents Page Committees responsible I
7、nside front cover Foreword ii 1 Scope 1 2 Definitions 1 3 General requirements 2 4 Location 2 5 Ventilation 2 6 Water supply 2 7 Controls for regulation of flow rate and temperature 3 8 Shower enclosure 4 9 Shower tray or bath 4 10 Type of shower 4 11 Exchange of information 4 12 Installation of sho
8、wer unit 4 Appendix A Information to be exchanged between the interested parties 5 Publications referred to Inside back coverBS6340-1:1983 ii BSI 03-1999 Foreword This Part of BS6340 has been prepared under the direction of the Building Services Standards Committee and was initiated by the Consumer
9、Standards Advisory Committee, a need for such a standard having been indicated by various interested organizations. The use of a shower unit is now a widespread practice, and in many cases shower units can prove more convenient and economic than a bath. They also take up less space than conventional
10、 baths and are therefore beneficial in small flats or single person dwellings having limited floor area. They have special advantages for those who have difficulty in using a bath. Shower unit components may be purchased as individual items (e.g.shower tray, mixer valve), as groups of items (e.g.all
11、 brassware), and as complete pre-packed units ready for installing into the building. As a shower unit comprises many different components the consumer needs guidance on their choice and installation to ensure that the unit, when installed, performs satisfactorily. In view of this many-faceted situa
12、tion this standard is being published in the following Parts: Part1: Guide on choice of shower units and their components for use in private dwellings; Part2: Specification for components for shower units and their installation; Part3: Specification for prefabricated shower enclosures; Part4: Specif
13、ication for shower heads; Part5: Specification for prefabricated shower trays made from acrylic material; Part6: Specification for prefabricated shower trays made from porcelain enamelled cast iron; Part7: Specification for prefabricated shower trays made from vitreous enamelled sheet steel; Part8:
14、Specification for prefabricated shower trays made from glazed ceramic. Components and installations that are not specific to shower units are covered in many other British Standards and these are referenced in this Part of this standard. Reference is made in this standard to a number of British Stan
15、dards which at the time of publication of this Part were still in draft form. As these documents are published, amendments will be issued giving the appropriate cross-references. In the meantime the purchaser should seek the advice of the manufacturer or installer on the topics not yet covered, in o
16、rder to achieve an acceptable installation. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligation
17、s. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, pages1 to6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on theinside
18、front cover.BS6340-1:1983 BSI 03-1999 1 1 Scope This Part of BS6340 provides guidance on the choice of shower units and their components for use in private dwellings. Shower units in touring caravans and in boats are not covered. It provides details of minimum requirements to ensure that the facilit
19、y provided is adequate and safe. It does not cover requirements for disabled persons and where the shower unit is to be used by a disabled person in a private dwelling, it may be appropriate to seek advice from the local authority social services department. Reference may also be made to specialist
20、publications 1) . Where the shower will be used by those in wheelchairs or by others with limited mobility, guidance on this aspect of access can be found in BS5810. NOTEThe titles of the publications referred to in this Part of BS6340 are listed on the inside back cover. 2 Definitions For the purpo
21、se of this Part of BS6340 the following definitions apply. 2.1 diverter assembly a single outlet type combination tap assembly which includes a transfer valve fitted after the hot and cold taps, the operation of which transfers the flow of mixed water from the outlet into the bath to the shower head
22、, and vice versa 2) 2.2 fixed shower head a fixed height shower head mounted in an overhead position 2.3 instantaneous water heater for showering purposes only an appliance which heats the water as it flows through the appliance to the shower head. The appliance incorporates its own heat source, eit
23、her gas or electricity 2.4 multi-point instantaneous water heater an appliance which heats the water as it flows through the appliance to the point of delivery and which has several points of delivery 2.5 operating member any means of operation of a shower control valve 2.6 private dwelling a house,
24、 flat or maisonette occupied by one or more households 2.7 shower cabinet a prefabricated but not necessarily preassembled structure comprising a shower tray and rigid water resistant enclosing wall(s) with an entry capable of being closed to provide a fully enclosed compartment 2.8 shower control v
25、alve a mixing valve with controls for regulating the flow and temperature of blended water supplied to a shower head 2.9 shower enclosure an arrangement of panels or curtains erected around a drained shower tray or bath in conjunction with one or more walls of the main building structure to provide
26、a water containing area for the purpose of showering (see2.7) 2.10 shower handset a movable shower head with an integral handle which, when used in conjunction with a flexible hose, permits the user to direct the water trajectory as required 2.11 shower head a water fitting, for use in a shower, fro
27、m which water issues as a film or spray 3) 2.12 shower tray a receptacle, which may be prefabricated or formed in situ, for catching water from a shower head 3) 2.13 shower unit an assembly of components which upon installation and permanent connection to a water supply and waste water drainage syst
28、em provides a shower bathing facility which enables total body cleansing under running water 1) Such as “Designing for the Disabled” by Selwyn Goldsmith and published by the Royal Institute of British Architects. 2) This definition differs from that given in BS4118. 3) This definition is taken from
29、BS4118.BS6340-1:1983 2 BSI 03-1999 2.14 slide bar a fixture mounted in the shower enclosure consisting of a vertically mounted tube or bar and a clampable handset holder which allows the height of a shower handset to be varied to the users particular needs 2.15 spray-plate a plate containing holes o
30、r slots through which water passes and thereby forms a spray of water with separate, definable jets 2.16 swivel shower head a fixed height shower head mounted at an average shoulder height, and incorporating a universal joint enabling it to be swivelled through a limited angular arc, thereby permitt
31、ing the water spray trajectory to be adjusted 3 General requirements A shower unit consists of an assembly of the following elements: a) suitably piped supply of water; b) water flow control; c) means of temperature regulation; d) shower head; e) shower enclosure; f) soap/shampoo/sponge dish; g) sho
32、wer tray or bath; h) waste water drainage. Elementsa) toc) should be permanently installed. The shower head may be permanently mounted, perhaps with provision for position adjustment, or may be designed to be hand held when the user so desires. The shower enclosure, which may be prefabricated or par
33、tially prefabricated and partially formed in situ, directs the water into a shower tray or bath from which it is drained. Optional facilities may include the provision of an integral seat, means of support in the form of rails or grab-handles, and a towel rail (normally outside the shower unit). Whe
34、re a seat is required it should be integral with the enclosure. Loose stools are not recommended (see BS6340-3). 4 Location When choosing a site for the installation of a new shower unit, attention should be paid to allowing sufficient space around to ensure convenience in use, including storage of
35、clothes and towels, and also to facilitate maintenance and cleaning (seeCP305-2 4) ). 5 Ventilation Adequate ventilation of a shower unit is most important to avoid residual dampness such as condensation. When a shower is installed in an existing bathroom this aspect should be already effectively co
36、vered. When a shower is installed in a new building or in a room not previously used for bathing satisfactory ventilation may be provided by windows or fixed ventilation opening direct to the open air, although it will be advantageous to supplement such natural ventilation by mechanical means. Where
37、 ventilation is necessarily entirely mechanical, a minimum of three air changes per hour should be provided. Further guidance can be found in BS5925. 6 Water supply 6.1 General. The local requirements of the water supplier, in whose area the shower unit is to be installed, should be ascertained. NOT
38、EWater Byelaws require written notice(7 days in England and Wales;10 days in Northern Ireland and Scotland) of any alteration to any water fitting or to an existing supply. The hot water supply should be from one of the following: a) a central domestic hot water storage system; b) an instantaneous w
39、ater heater serving only the shower unit; c) a multi-point instantaneous water heater serving other outlets; d) a storage water heater serving only the shower unit. The choice will depend on the availability and capacity of the existing or proposed system, and the location of the shower unit in rela
40、tion to it. A long “dead leg” should be avoided in order to minimize heat loss, pressure drop and waste of water. The installation should be designed to protect the user from sudden fluctuations from the set temperature. This should be achieved by the system being installed as given in6.2 or by the
41、incorporation of a suitable device such as a thermostatic valve or pressure compensating valve. 4) In course of preparation.BS6340-1:1983 BSI 03-1999 3 6.2 Central domestic hot water system. Where the hot water supply is taken from the central domestic hot water storage system, separate supplies of
42、hot and cold water to the shower will be required. To reduce the problem of wide temperature variations, and the associated risk of scalding, and to ensure satisfactory operation, both the hot and cold water supplies should be supplied at nominally equal pressures from a common source. It is essenti
43、al that mains pressure and stored pressure are not used together. The hot and cold water circuits should be so designed that the supply to the shower does not appreciably reduce in pressure or rate of flow when other outlets are used (seeCP310). 6.3 Instantaneous heaters. Where an instantaneous heat
44、er is used to heat the water the following points apply. a) The water supply should be checked to ensure that under normal working conditions the water pressure is not less than the minimum pressure nor more than the maximum pressure recommended by the manufacturer of the heater (refer to the data p
45、late). A restrictor valve should be fitted if the manufacturer of the heater advises it and if the inlet water pressure exceeds the specified figure. b) Where a multi-point instantaneous water heater serving other outlets is used the advice of the manufacturer of the heater should be obtained on whe
46、ther it is compatible with the shower controls and head it is intended to use. It should be appreciated that the mixed water temperature at a shower may be influenced by using other outlets in the water circuit. 6.4 Storage water heater serving only the shower unit. With the incoming cold water at5C
47、, the water system should be such as to provide50L at40C at the shower head15min after drawing off50L at40C. 7 Controls for regulation of flow rate and temperature The rate of flow and the temperature of the water from the shower head can be regulated by separate controls, by combined control or by
48、a single control. When a shower is designed to be used by elderly or handicapped persons, ease of operation is imperative, and the use of lever handled controls is recommended. The temperature should be controlled in one of the following ways. a) Combination mixing. The temperature of the mixed wate
49、r and the volume/shut-off feature of the hot and cold water is governed by the operation of two independent hot and cold taps. b) Single sequential control mixing. The temperature of the mixed water is governed through a nominal range in a predetermined sequence by the operation of a single control which may also have a shut-off feature. If this mode is used the sequence of the operation should be: off; cold; warm; hot. c) Twin (or dual) control mixing. The temperature of the mixed water is independently governed by the operation of one control, and the vo
