ASME A112.1016-2011 pdf download

ASME A112.1016-2011 pdf download.Performance requirements for
automatic compensating valves for individual showers and tub/shower combinations.
4.8.2 Procedure
The mechanical temperature limit stop test shall be conducted as follows:
(a) Set up the specimen in accordance with Figure 1.
(b) Pressurize the hot and cold water inlets to 31 0.3 ± 1 3.8 kPa (45.0 ± 2.0 psi).
(c) Flow water through the device at a rate of 9.5 ± 1 .0 L/min (2.5 ± 0.3 gpm) or the manufacturer’s minimum rated flow ±10%, whichever is less.
(d) Set the cold inlet temperature at 10.0 ± 2.8 °C (50.0 ± 5.0°F).
(e) Set the hot inlet temperature at 82.2 +0, —5.6 °C (180.0 +0, -10°F).
(f) Set the limit stop to an outlet temperature of 46.1 +0, —2.8 °C (11 5.0 +0, —5.0°F), or the manufacturer’s specified maximum temperature, whichever is less.
(g) Set the device at the full hot position, flow for 1 mm and measure and record the outlet temperature at sensor T3.
(h) Apply a torque of 5.1 N.m (45.0 lbf.in) to the temperature control (handle or valve stem) for 20±5s.
(i) While applying the torque specified in Item (h) and for 1 mm after, measure and record the outlet temperature at sensor T3.
4.8.3 Failure criteria
When tested in accordance with Section 4.8.2, the device shall be rejected if
(a) the outlet temperature measured in Section 4.8.2(i) exceeds the outlet temperature recorded in Section 4.8.2(g) by 2.0 °C (3.6°F); or
(b) there are any observable fractures in the limit stop.
4.9 Outlet temperature and flow capacity test
4.9.1 Purpose
The purpose of the outlet temperature and flow capacity test is to determine compliance with the design requirements of Sections 3.3 and 3.5.
4.9.2 Procedure for all devices (see Figure 1)
The outlet temperature and flow capacity test shall be conducted as follows:
(a) Set up the specimen as shown in Figure 1, with valves Vi, V2, and V3 in the fully open position.
(b) Set the hot and cold water supply pressures directly upstream of the inlet connections to 310.3 ± 1 3.8 kPa (45.0 ± 2.0 psi), as measured by gauges Gi and G2.
(c) After the hot water and cold water inlet temperatures are established in Items (e) (i) to (iv), maintain these inlet temperatures within ±1 .0 °C (±2.0°F) without exceeding the limits specified in Items (e) (i) to (iv).
(d) Adjust valve V3 so that the device delivers 9.5 ± 1 .0 L/min (2.5 ± 0.3 gpm) and maintain the
conditions established in Items (b) to (d), or if the manufacturer’s minimum rated flow is less than
9.5 ± 1 .0 L/min (2.5 ± 0.3 gpm) adjust valve V3 to the manufacturer’s minimum rated flow +1 .0,
—0.0 L/min (+0.3, —0.0 gpm) and maintain the conditions established in Items (b) to (d).
Note: Adjustments in Items (b) to (d) are an iterative process.
(e) The temperature limit stop and the valve V3 may be readjusted to conduct the following tests:
(i) Set the cold inlet temperature to 10.0 ± 2.8 °C (50.0 ± 5.0°F) and the hot inlet temperature to 48.9 +0.0, —2.8 °C (120.0 +0.0, —5.0°F). Set the device to the full cold position and then adjust the device to an outlet temperature of 37.8 +2.8, —0 °C (100.0 +5.0, —0°F). Flow for 1 mm and record the outlet temperature and flow.
(ii) Set the cold inlet temperature to 10.0 ± 2.8 °C (50.0 ± 5.0°F) and the hot inlet temperature to 82.2 +0.0, —6.0 °C (180.0 +0.0, —10.0°F). Set the device to the full cold position and then adjust the device to an outlet temperature of 37.8 +2,8, —0 °C (1 00.0 +5.0, —0°F). Flow for 1 mm and record the outlet temperature and flow. Set the temperature limit stop to a maximum outlet temperature of 48.9 °C (1 20.0°F). Set the device at the full hot position, flow for 1 mm, and record the outlet temperature.
(iii) Set the cold inlet temperature to 26.7 +0, —5.6 °C (80.0 +0, —10.0°F) and the hot inlet temperature to 82.2 +0.0, —6.0 °C (180.0 +0.0, —10.0°F). Set the device to the full cold position and then adjust the device to an outlet temperature of 37.8 +2.8, —0 °C (100.0+5.0, —0°F). Flow for 1 mm and record the outlet temperature and flow. Set the temperature limit stop to a maximum outlet temperature of 48.9 °C (1 20.0°F). Set the device at the full hot position, flow for 1 mm, and record the outlet temperature.
(iv) Set the cold inlet temperature to 26.7 +0, —5.6 °C (80.0 +0, —10.0°F) and the hot inlet temperature to 48.9 +0.0, —2.8 °C (120.0 +0.0, —5.0°F). Maintain a minimum outlet temperature of 37.8 +2.8, —0 °C (100.0 +5.0, —0°F). Flow for 1 mm and record the outlet temperature and flow.