ANSI ASME A112.1016-2011 Performance requirements for automatic compensating valves for individual showers and tub shower combinations (Includes Update No 1 5 2012 Update No 2 10 2.pdf

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1、!33% !3-%! #3!“ Performance requirements for automatic compensating valves for individual showers and tub/shower combinationsLegal Notice for Harmonized StandardJointly Developed by ASME, ASSE, and CSAIntellectual property rights and ownershipAs between The American Society of Mechanical Engineers (

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15、ontained in this Legal Notice, you may not load or use this document or make any copies of the contents hereof, and if you do make such copies, you are required to destroy them immediately. Use of this document constitutes your acceptance of the terms and conditions of this Legal Notice.Update No. 2

16、ASSE 1016-2011/ASME A112.1016-2011/CSA B125.16-11October 2013Note: For information about the Standards Update Service, go to shop.csa.ca or e-mail techsupportcsagroup.org.Title: Performance requirements for automatic compensating valves for individual showers and tub/shower combinations originally p

17、ublished October 2011The following revisions have been formally approved and are marked by the symbol delta (g39) in the margin on the attached replacement pages:Revised Clauses 4.2.2.2, 4.6.3, 4.8.2, 4.9.2, and 4.9.3New NoneDeleted None Update your copy by inserting these revised pages. Keep the pa

18、ges you remove for reference.g45g20g27g24g20g52g48g21ASME The American Society of Sanitary Engineering The American Society of Mechanical Engineers 2013 CSA GroupPerformance requirements for automatic compensating valves for individual showers and tub/shower combinationsOctober 2013Section III3 Desi

19、gn and general requirements3.1 Types of devices3.1.1 The types of devices covered by this Standard and the type-specific requirements that they shall meet are(a) Type P, Section 4.6.7;(b) Type T, Section 4.6.8; and(c) Type T/P, Section 4.6.9.3.1.2 Devices covered by this Standard shall comply with a

20、ll the applicable requirements of this Standard and also comply with the applicable requirements of ASME A112.18.1/CSA B125.1.3.2 Accessible designsDevices intended for use in accessible designs shall comply with the requirements in Clause 4.6 of ASME A112.18.1/CSA B125.1.3.3 Minimum rated flowDevic

21、es shall comply with the requirements in this Standard when tested at the manufacturers minimum rated flow or 9.5 L/min (2.5 gpm), whichever is lower.3.4 PressureDevices shall be designed for a rated pressure between 140.0 and 862.0 kPa (20.0 and 125.0 psi).3.5 Temperature3.5.1 Devices shall be desi

22、gned to be the final temperature control.3.5.2 Devices shall be adjustable from the cold position up to at least 37.8 C (100.0F) with hot water inlet temperatures ranging from 48.9 to 82.2 C (120.0 to 180.0F) and cold water inlet temperatures ranging from 4.0 to 26.7 C (40.0 to 80.0F).3.5.3 Devices

23、shall(a) be equipped with an adjustable means to limit the setting towards the hot position;(b) be capable of limiting the maximum outlet temperature to 48.9 C (120.0F) or the manufacturers stated maximum outlet temperature, whichever is less; and(c) maintain an outlet temperature within 2.0 C (3.6F

24、) from the set temperature in accordance with Section 4.6.3.6 ServicingThe internal parts of concealed devices shall be accessible from the finished wall line for inspection, repairs, or replacement.3(Replaces p. 3, October 2011) The American Society of Sanitary Engineering The American Society of M

25、echanical EngineersASSE 1016-2011/ASME A112.1016-2011/CSA B125.16-11 2013 CSA GroupOctober 2013Section IV4 Performance requirements and test methods4.1 GeneralTests shall be conducted on the same specimen, in the order listed in this Standard.4.2 Conditioning4.2.1 PreconditioningBefore testing, spec

26、imens shall be conditioned at ambient laboratory conditions for not less than 12 h.4.2.2 High-temperature conditioning4.2.2.1 PurposeThe purpose of the high-temperature conditioning is to determine if the device can withstand the maximum temperatures specified in Section 3.5.4.2.2.2 g39 ProcedureSpe

27、cimens shall be conditioned as follows:(a) Set up the specimen in accordance with Figure 1, with shut off valves V1 and V2 and valve V3 in the full open position.(b) Establish and maintain an equal pressure of 310.3 13.8 kPa (45.0 2.0 psi) on both the hot and cold water supplies.(c) Set the hot wate

28、r temperature to 82.2 +0.0, -6.0 C (180.0 +0.0, -10.0F).(d) Set the cold water temperature to 10.0 3.0 C (50.0 5.0F).(e) Adjust the outlet temperature to the maximum allowable outlet temperature, not exceeding 48.9 C (120.0F).(f) Adjust valve V3 to reduce the flow rate to 9.5 1.0 L/min (2.5 0.3 gpm)

29、 or the manufacturers minimum rated flow 10%.(g) Allow the water to flow through the specimen for 5 min.(Replaces p. 4, October 2011)4 The American Society of Sanitary Engineering The American Society of Mechanical Engineers 2013 CSA GroupPerformance requirements for automatic compensating valves fo

30、r individual showers and tub/shower combinationsOctober 2013(e) 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 manufacturers minimum rated flow is less than 9.5 1.0 L/min (2.5 0.3 gpm), adjust valve V3 to

31、 the manufacturers minimum rated flow +1.0, g30.0 L/min (+0.3, 0.0 gpm) and maintain the conditions established in Items (b) to (d).Note: Adjustments in Items (b) to (e) are an iterative process.(f) Flow water through the device for 1 min.(g) Record the initial outlet set temperature.4.6.4 Procedure

32、 Type P devicesThe 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 13.8 kPa (22.5 2.0 psi

33、). Observe and record the temperature changes at the outlet temperature sensor T3 for 25 5 s.(b) Restore the conditions as described in Section 4.6.3. Increase the hot water supply pressure by 50% to 465.4 13.8 kPa (67.5 2.0 psi). Observe and record the temperature changes at the outlet temperature

34、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.

35、6.3. Increase the cold water supply pressure by 50% to 465.4 13.8 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 devicesThe pressure changes specified in this Section shall be accomplished in less than 1 s. In addi

36、tion 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 13.8 kPa (36.0 2.0 psi). Observe and record temperature changes at the outlet temperature sensor T3 for 25 5 s.(b) Restore conditio

37、ns as described in Items (a) to (g) of Section 4.6.3. Increase the hot water supply pressure by 20% to 372.3 13.8 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. De

38、crease the cold water supply pressure by 20% to 248.2 13.8 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 13.8 kPa

39、 (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 13.8 0.6 C (25.0 1.0F) at a rate of 3.0 0.6 C (5.0 1.0F) per minute. Obser

40、ve and record the temperature changes at the outlet temperature sensor T3 for 25 5 s.4.6.6 Procedure Type T/P devicesType T/P devices shall be tested in accordance with Sections 4.6.4 and 4.6.5.4.6.7 Failure criteria Type P devicesWhen tested in accordance with Section 4.6.4, an outlet temperature v

41、ariation exceeding 2.0 C (3.6F) from the initial outlet set temperature at the outlet temperature sensor T3 shall result in a rejection of the device.g399(Replaces p. 9, October 2011) The American Society of Sanitary Engineering The American Society of Mechanical EngineersASSE 1016-2011/ASME A112.10

42、16-2011/CSA B125.16-11 2013 CSA GroupOctober 20134.6.8 Failure criteria Type T devicesWhen 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 (+5.4F)

43、 for more than 1.5 s (see Figures B.1 and B.3); and(ii) exceed 5.0 C (9.0F) 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 (3.6F) (see Figure B.3).4.6.9 Failure criteria Type T/P devicesWhen tested in accordance wit

44、h Section 4.6.6, an outlet temperature variation exceeding 2.0 C (3.6F) 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 types4.7.1 PurposeThe purpose of the water supply failure test is to determi

45、ne 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 Procedure4.7.2.1 The specimen shall be set up as shown in Figure 1 and in accordance with the conditions specified in Items (a) t

46、o (f) of Section 4.6.3.4.7.2.2 After the device flows for 1 min 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 r

47、ate 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

48、and flow rate for 5 s after the hot water supply valve has been fully closed.4.7.3 Failure criteriaWhen 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 manufacturers minimum rated flow, whichever is less, within 5 s, shall result

49、 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 L/min (0.5 gpm) or 30% of the manufacturers minimum rated flow, whichever is less, prior to the water temperature at sensor T3 exceeding 48.9 C (120.0F) shall result