ASME A112.19.10-2017 pdf free download.Retrofit Dual Flush Devices for Water Closets
2 GENERAL REQUIREMENTS
2.1 Functional Operation
The flush valve with dual flush feature shall be designed for retrofit use in water closets and shall fit within the tank punchingwithoutinterference with otheroperatingparts. The usershall be requiredto activate afull orreduced flush by actuation of the selector control. After release, the selected flush mode shall be completed without requiring further action or holding by the user.
2.2 Flush Valve
The flush valve shall meet the following requirements of ASME A112.19.5/CSA B45.15:
(a) rated temperature
(b) threads
(c) overflow tube
(d) thread torque test
(e) fixture and flush valve leak test
(f) leak rate and chemical resistance test
3 TESTING
3.1 Life Cycle Testing
The flush valve with dual flush device shall be evaluated fordurability. The life cycle testshall be conducted as follows:
(a) Install the specimen with a minimum sustained water head of 150 mm (6.0 in.) at 21°C ± 5°C (70°F ± 10°F).
(b) Operate the specimen and allow itto return to its closed position for 30,000 cycles usinga sequence ofreduced to full flushes in a ratio of 1:4. After completing 30,000 cycles at a ratio of 1:4, immediately begin 120,000 cycles in the reduced flush volume mode.
3.2 Performance Requirements
During and after the test, dual flush devices shall
(a) continue to function as they did at the beginning of the test
(b) show no signs of leakage
(c) not develop any defects that might adversely affect their functionality or serviceability
4 MARKINGS AND INSTALLATION INSTRUCTIONS
4.1 Markings
Retrofit dual flush devices shall be marked with the manufacturer’s name and/or registered trademark or, in case of private labeling, the name for whom the device was manufactured.
Markings shall be permanent, legible, and visible after installation.
4.1.1 Repair Parts. Devices shall have a label indicating at least the following:
(a) the telephone number of a service department from which end-users can obtain replacement parts
(b) the serial or part number
(c) information on procuring replacement parts for maintaining the flush volume
4.2 Installation
Installation instructions shall include the following provisions:
(a) the procedures necessaryto provide a full volume flush and procedures to establish a partial volume flush onsistent with the requirements in para. 2.1
(b) the steps necessary to ensure that the dual flush actuation selector and all parts move freely when the tank is empty and normally filled
4.3 Product Limitations to Specific Water Closets
Restrictions or limitations on the installation ofthe device(s) to any single or group ofmanufacturers’ water closets shall be specified on a label on the package or instructions by the manufacturer, producer, or provider ofthe evice(s).ASME A112.19.10 pdf download.ASME A112.19.10-2017 pdf free download
