Applies to electrically operated water valves for use in, on, or in association with equipment for household and similiar use<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | BRITISH STANDARD <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | Committees responsible for this British\ufffdStandard <\/td>\n<\/tr>\n | ||||||
| 3<\/td>\n | Contents <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Contents <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | Scope This Part 2 applies to electrically operated water valves for use in, on or in association with e… Definitions Electrically operated valve valve water valve <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | heating-water valve actuator valve body assembly valve body nominal size nominal pressure rating end connection valve seat closure member stem <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | fitting Definitions relating to the function of controls on-off valve normally closed valve normally open valve modulating valve diverting valve closed position travel rated travel open position fully open position flow rate <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | rated flow rate flow factor maximum operating pressure differential minimum operating pressure differential water hammer transient pressure valve with anti-water-hammer characteristics Miscellaneous definitions drinking-water non-drinking-water General requirement General notes on tests Rating <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Classification Electrically operated valve According to ambient temperature limits of the switch head: According to protection against electric shock: Not applicable. Add: According to type of end-connections: <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | According to features of electrically operated water valves: According to temperature, pressure and type of the water controlled: According to nominal size and thread size of end connections <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Information <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Add the following explanatory paragraph: Protection against electric shock Addition: Provision for protective earthing <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Terminals and terminations Delete the last explanatory paragraph. Terminals and terminations for internal conductors Constructional requirements Modification: Separation of wetted parts from electrical parts Moisture and dust resistance Electric strength and insulation resistance <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Heating Not applicable. Replacement: Manufacturing deviation and drift Environmental stress Environmental stress of temperature <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Endurance Addition: Replacement: Test for particular purpose controls Mechanical strength Valves shall withstand the water pressure occurring in normal use. <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Wetted material specifications Torque <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Threaded parts and connections Creepage distances, clearances and distances through insulation Resistance to heat, fire and tracking Resistance to corrosion Radio interference suppression Components Normal operation Operation with mains-borne perturbations, magnetic and electromagnetic disturbances Abnormal operation Overvoltage and undervoltage test <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | Annex H (normative) Requirements for electronic controls Classification According to software class Information Constructional requirements Controls using software Operation with mains-borne perturbations, magnetic and electromagnetic disturbances Fast transient burst test Evaluation of compliance Appendix AA Relation between different flow coefficients <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | Appendix BB Arrangement for the measurement of transient pressures caused by water valves <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Appendix CC Test on valve bodies of thermoplastic material intended to be connected to the water supply mains Appendix DD Torque Torque test for valves with internally threaded end-connections to ISO\ufffd7-1 General Torque test <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Torque test for valves with internally threaded end-connections to ISO\ufffd228-1 <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Torque test for valves with internally threaded end-connections with ISO metric thread for compre… Olive type compression fittings Flared compression fittings Torque test for valves with externally threaded end-connections to ISO\ufffd7-1 Torque test for valves with external threaded end-connections to ISO\ufffd228-1 or to ISO metric\ufffdthrea… Torque test for valves with adaptors Tightening torque in Nm for bolts and screws for adaptors <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Torque test for valves with internally or externally threaded end-connections for NPT\ufffdthread One sample of the largest connection size for the valve body is subjected to the following test: A length of new, clean, and properly threaded Schedule\ufffd40 iron pipe or pipe fitting, as applicabl… The procedure in\ufffd With the torque removed, the assembly is checked for hydrostatic strength according to\ufffd Torque test for valves with internally or externally threaded end-connections for SAE thread One sample of the largest connection size for the valve body is subjected to the following test: A length of new, clean steel tube of the proper size, with end flared and a fitting to match the … The procedure in\ufffd With the torque removed, the assembly is checked for hydrostatic strength according to\ufffd Annex ZB Other international publications quoted in this standard with the references of the r… <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | National annex NA (informative) Original IEC text amended by CENELEC common modifications <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Specification for automatic electrical controls for household and similar use. Particular requirements – Electrically operated water valves, including mechanical requirements<\/b><\/p>\n |