ASME A112.1016 pdf free download

ASME A112.1016-2011 pdf free download.Performance requirements for automatic compensating valves for individual showers and tub/ shower combinations.
4.6.4 Procedure — Type P devices
The pressure changes specified in this Section shall be accomplished in less than 1 s. In addition to the
procedures specified in Sections 4.6.2 and 4.6.3, the following test procedure shall be conducted:
(a) Decrease the hot water supply pressure by 50% to 155.1 ± 1 3.8 kPa (22.5 ± 2.0 psi). Observe and record the temperature changes at the outlet temperature sensor T3 for 25 ± 5 5.
(b) Restore the conditions as described in Section 4.6.3. Increase the hot water supply pressure by 50% to 465.4 ± 1 3.8 kPa (67.5 ± 2.0 psi). Observe and record the temperature changes at the outlet temperature sensor T3 for 25 ± 5 s.
(c) Restore the conditions as described in Section 4.6.3. Decrease cold water supply pressure by 50% to 155.1 ± 1 3.8 kPa (22.5 ± 2.0 psi). Observe and record the temperature changes at the outlet temperature sensor T3 for 25 ± 5 s.
(d) Restore the conditions as described in Section 4.6.3. Increase the cold water supply pressure by 50% to 465.4 ± 1 3.8 kPa (67.5 ± 2.0 psi). Observe and record the temperature changes at the outlet temperature sensor T3 for 25 ± 5 s.
4.6.5 Procedure — Type T devices
The pressure changes specified in this Section shall be accomplished in less than 1 s. In addition to the
procedures specified in Sections 4.6.2 and 4.6.3, the following test procedure shall be conducted:
(a) Decrease the hot water supply pressure by 20% to 248.2 ± 1 3.8 kPa (36.0 ± 2.0 psi). Observe and record temperature changes at the outlet temperature sensor T3 for 25 ± 5 s.
(b) Restore conditions as described in Items (a) to (g) of Section 4.6.3. Increase the hot water supply pressure by 20% to 372.3 ± 1 3.8 kPa (54.0 ± 2.0 psi). Observe and record the temperature changes at the outlet temperature sensor T3 for 25 ± 5 s.
(c) Restore conditions as described in Items (a) to (g) of Section 4.6.3. Decrease the cold water supply pressure by 20% to 248.2 ± 1 3.8 kPa (36.0 ± 2.0 psi). Observe and record the temperature changes at the outlet temperature sensor T3 for 25 ± 5 s.
(d) Restore conditions as described in Items (a) to (g) of Section 4.6.3. Increase the cold water pressure by 20% to 372.3 ± 1 3.8 kPa (54.0 ± 2.0 psi). Observe and record the temperature changes at the outlet temperature sensor T3 for 25 ± 5 s.
(e) Restore conditions as described in Items (a) to (g) of Section 4.6.3. Increase the hot water supply temperature by 1 3.8 ± 0.6 °C (25.0 ± 1 .0°F) at a rate of 3.0 ± 0.6 °C (5.0 ± 1 .0°F) per minute. Observe and record the temperature changes at the outlet temperature sensor T3 for 25 ± 5 s.
4.6.6 Procedure — Type TIP devices
Type T/P devices shall be tested in accordance with Sections 4.6.4 and 4.6.5.
4.6.7 Failure criteria — Type P devices
When tested in accordance with Section 4.6.4, an outlet temperature variation exceeding 2.O C (±3.6F) from the initial outlet set temperature at the outlet temperature sensor T3 shall result in a rejection of the device.
4.6.8 Failure criteria — Type T devices
When tested in accordance with Section 4.6.5, the temperature change from the initial outlet set temperature shall not
(a) within the initial 5 s following a temperature change at sensor T3,
(i) exceed +3.0 °C (+5.4°F) for more than 1.5 s (see Figures B.1 and B.3); and (ii) exceed —5.0 °C (—9.0°F) for more than 1 s (see Figures B.2 and B.3); and
(b) after the initial 5 s following a temperature change at sensor T3, exceed ±2.0 °C (±3.6°F) (see Figure B.3).
4.6.9 Failure criteria — Type T/P devices
When tested in accordance with Section 4.6.6, an outlet temperature variation exceeding ±2.0 °C (±3.6°F) from the initial outlet set temperature at the outlet temperature sensor T3 shall result in a rejection of the device.
4.7 Water supply failure test — All types
4.7.1 Purpose
The purpose of the water supply failure test is to determine if the device automatically reduces the discharge flow to reduce the risk of scalding and thermal shock of the user when the water supply is suddenly interrupted.
4.7.2 Procedure
4.7.2.1
The specimen shall be set up as shown in Figure 1 and in accordance with the conditions specified in
Items (a) to (f) of Section 4.6.3.
4.7.2.2
After the device flows for 1 mm at the parameters specified in Section 4.7.2.1, the following tests shall be
conducted:
(a) Close the cold water supply valve within 1 s (cold water supply failure test). Continuously record the outlet temperature at sensor T3 and flow rate for 5 s after the cold water supply valve has been fully closed.
(b) Re-establish the initial test parameters specified in Section 4.7.2.1.
(c) Repeat the test by closing the hot water supply valve within 1 s (hot water supply failure test). Continuously record the outlet temperature at sensor T3 and flow rate for 5 s after the hot water supply valve has been fully closed.
47.3 Failure criteria
When tested in accordance with Section 4.7.2, failure of the device to reduce the flow to 1 .9 L/min
(0.5 gpm) or 30% of the manufacturer’s minimum rated flow, whichever is less, within 5 s, shall result in
a rejection of the device.
During the procedure specified in Section 4.7.2.2(a) (i.e., the cold water supply failure test), failure of the device to reduce the flow to 1.9 11mm (0.5 gpm) or 30% of the manufacturer’s minimum rated flow, whichever is less, prior to the water temperature at sensor T3 exceeding 48.9 °C (120.0°F) shall result in a rejection of the device.ASME A112.1016 pdf download.