A112.18.1/CSA B125.1 - 2018
This Standard covers plumbing supply fittings and accessories located between the supply stop and the terminal fitting, inclusive, as follows:
- automatic compensating valves for individual wall-mounted showering systems;
- bath and shower supply fittings;
- bidet supply fittings;
- clothes washer supply fittings;
- commercial pre-rinse spray valves;
- drinking fountain supply fittings;
- humidifier supply stops;
- kitchen, sink, and lavatory supply fittings;
- laundry tub supply fittings;
- lawn and sediment faucets;
- low-pressure water dispensers;
- metering and self-closing supply fittings;
- showerheads, hand-held showers, and body sprays; and
- supply stops.
This device consists of two (2) independently acting check valves, internally force loaded to a normally closed position, designed and constructed to operate under intermittent or continuous pressure conditions.
The device shall be designed to accommodate the following nominal pipe sizes: ¼ NPS, ⅜ NPS, ½ NPS, ⅝ NPSM, ⅝ NPS, ¾ NPS, 1 NPSM, 1 NPS, 1-¼ NPSM, 1-¼ NPS, 1-½ NPS, and 2 NPS (8 DN, 10 DN, 15 DN, 18 DN, 20 DN, 25 DN, 32 DN, 40 DN, and 50 DN).
The device shall be designed for a working pressure of up to a minimum of 160 psi (1103 kPa).
a) Cold water service ranges from 40.0 °F to 110.0 °F (4.4 °C to 43.3 °C), or the manufacturer’s maximum rated temperature, whichever is greater.
b) Hot water service ranges from 40.0 °F to 180.0 °F (4.4 °C to 82.2 °C), or the manufacturer’s maximum rated temperature, whichever is greater.
The device shall meet the minimum water flow capacities at or below the maximum pressure loss specified in Section 3.4.Learn More Applicable Products:
This Standard establishes minimum physical, performance, and health effects requirements for plastic piping system components and related materials. These criteria were established for the protection of public health and the environment.Learn More Applicable Products:
This Standard contains requirements for equipment and devices that manually dispense food or beverages, in bulk or in portions. The materials, design, and construction requirements of this Standard may also be applied to an item that is manufactured as a component of food and beverage dispensing equipment. This Standard does not apply to vending machines, dispensing freezers, or bulk milk dispensing equipment covered by the scope of other NSF Standards.
Dispensing equipment components and materials covered under other NSF or NSF/ANSI Standards or Criteria shall also comply with the requirements therein. This Standard is not intended to restrict new unit design, provided that such design meets the minimum specifications described herein.Learn More Applicable Products: