AS 4032.4:2014 – Water supply-Valves for the control of heated water supply temperatures Part 4: Thermostatically controlled taps for the control of heated water supply temperatures
AS 4032.4:2014 – Water supply-Valves for the control of heated water supply temperatures Part 4: Thermostatically controlled taps for the control of heated water supply temperatures.
(d) Temperature stability of mixed water (see Clause 4.6).
(e) Endurance of control system and operating mechanism (see Clause 4.81.
(I) Watertighiness at operating temperature (see Clause 4,7).
(g) Repeat thermal shut-otT(see Clause 4.4).
(h) Repeal mixed water temperature overshoot on starting from ambient (see Clause 4.5).
(i) Repeat temperature stability of mixed water (see Clause 4.6).
4.10 PlASTICS lATFRlALS USFI) FOR PLASTICS-ROl)lFl) TAPS
When tested in accordance with Appendix H, a plastics-bodicd tap assembly shall exhibit characteristics for compatibility and resistance to variations in waler chemistry and elevated tcmpcraturcs
4.11 sURFACE-MOUNTING STRENGTH TEST FOR TAPS
When tested in accordance with Appendix I. the surface-mounting components of the tap shall show no signs of cracking. deformation. stripping of threads or unsecured mounting. and shalt comply with the requirements of the Clause 4.3.
NOTE: This Clause does not apply to recessed. wall-mounted thermostatic mixing taps.
4.12 NOMINAL FLOW RATE
4.12.1 HIgh pressure
The flow rate of a tap or tap outlet shall he determined in accordance with Appendix J.
4.12.2 Low sod unequal pressure
The how rate of a tap or tap outlet shall be determined in accordance with Appendix K.
4.13 TORQUE OF FAHRI(’ATEF) ASSF.%1HLIF.S
When a fabricated tap as.embly is tested in accordance with Appendix L. the fabricated joint shall show no signs of splitting, cracking, distortion or thread dantage. This test is a test of a fabricated joint and twisting of copper pipe tails is not a failure of the test.
When a handle assembly is tested in accordance with Appendix SI. the handle and handle attachment shall show no signs of cracking. breaking or stripping of thrcad
4.l TORQUE OF OPERATING MEChANISM
When tested in accordance with Appendix N. a tap-operating mechanism shall show no signs of cracking. bending or damage.
4.16 RESISTANCE OF IIANDLE TO REMOVAL
The handles of wall-mounted bath or shower thermostatic mixing taps shall not fracture or pull otT under an axial static load of 650 -4-0, —50 N.
This Appendix sets out thc means by which compliance with this Standard has to be demonstrated by a manufacturer for product certification,
Products covered by this Standard are required to he certified under the National Certification Scheme.
A2 PROI)I’CT CERTIFICATION
The purpose of product certification is to provide independent assurance of the claim by the manufacturer that products comply with the stated Standard.
The certification scheme shall meet the criteria described in HH 18.28 in that, as well as full type testing from independentl sampled production and subsequent seritication of conformance, it requires the manufacturer to maintain cft’cctivc quality planning to control production.
The certification scheme ser’es to indicate that the products consistently conform to the requirements of the Standard.
Product certification shall be conducted by an accredited certification body.
The frequency of the sampling and testing schedule, as detailed in Tables Al and A2, shall be used by the certifing body for product compliance auditing. Iloweser, where the manufacturer can demonstrate adequate process control to the certifying body, the frequency of sampling and testing nominated in the manufacturer’s quality plan and documented procedures shall take precedence for the purpose of product certification.
Table Al sets out the requirements for type testing for a manufacturer to demonstrate compliance of productf a) to this Standard for initial certification.
Table A2 is a schedule identifying those tests and minimum frequencies to be undertaken on a routine batch-by-batch or continuous basis.