标准规范下载简介
ASME A112.18.8-2020 水管下水道系统用内嵌式生活排污阀.pdf简介：
ASME A112.18.8-2020 是美国机械工程师学会（American Society of Mechanical Engineers, ASME）制定的一份标准，其全称为"Water Supply Fittings - Sanitary Waste Valves for Integral Service Connections - Part 8: Inline Sanitary Waste Valves for Use in Potable Water Supply Systems"。这份标准专注于用于水管下水道系统的内嵌式生活排污阀（Sanitary Waste Valves），主要用于连接和控制卫生设施（如马桶）与公共下水道系统的连接。
该标准详细规定了这些排污阀的设计、材料、制造、检验和性能要求，确保其在用于饮用水供应系统时的安全、有效和耐用。内容可能包括阀体结构、密封性、操作性能、压力测试、寿命预测以及安装指导等。它适用于公共和商用建筑中的生活污水排放系统，旨在保障饮用水安全并维护环境卫生。
简而言之，ASME A112.18.8-2020 是一种技术规范，为排污阀的制造和使用提供了行业标准，以确保其在不同应用场景下的性能和合规性。
ASME A112.18.8-2020 水管下水道系统用内嵌式生活排污阀.pdf部分内容预览：
STANDARDS COMMITTEEOFFICERS
STANDARDSCOMMITTEEOFFICERS W. M. Smith, Chair S. Rawalpindiwala, Vice Chair A. L. Guzman Rodriguez, Secretan
STANDARDS COMMITTEE PERSONNEL
【4层】5708.82平米四层框架综合楼投标书（CAD图纸全套、商务标、技术标、计价表）A112.18.8PROJECTTEAMPERSONNEL SANITARYWASTEVALVES
ONDENCEWITHTHEA112CO
ieneral.AsME Standards are developed and maintained with the intent to represent the consensus of concerned rests. As such, users of this Standard may interact with the Committee by requesting interpretations, proposing sions or a case, and attending Committee meetings.Correspondence should be addressed to
lenjustifled,toper yimplementationc an approved revision when the need is urgent, or to provide rules not covered by existing provisions. Cases are effective immediately upon ASME approval and shall be posted on the ASME Committee web page. Requests for Cases shall provide a Statement of Need and Background Information. The request should identify the Standard and the paragraph,figure, or table number(s), and be written as a Question and Reply in the same format as existing Cases. Requests for Cases should also indicate the applicable edition(s) of the Standard to which the proposed Caseapplies.
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SANITARYWASTEVALVESFORPLUMBINGDRNAGESYSTEMS
Values are stated in U.S.Customary units and in the International System considered as the standard. In this Standard, gallons (U.S. liquid) per minute is abbreviated gpm, and liters (metric liquid) per minute is abbrevia L/min.
considered as the standard. In this Standard, gallons (U.S. liquid) per minute is abbreviated gpm, and liters (metric liquid) per minute is abbreviated /min
1.3 References
1.4Defintions
ENERALREQUIREMENTS
2.1Material
2.4 Valve Inlet
RAL NOTE: The above images are for illustrative purposes only.
2.5 Valve 0utlet
2.6 Threaded Connections
3.1WaterwayFlowRate
(a) 1/ in. (31.8 mm): 9.5 gpm (36 L/min), valve alone on wash basin, bidet (b) 1/2 in. (38.1 mm): 13.5 gpm (51 L/min), valve alone on bath (c) 1/ in. (38.1 mm): 11.1 gpm (42 L/min), valve alone on kitchen sink
(a) 1/4 in. (31.8 mm): 9.5 gpm (36 L/min), valve alone on wash basin, bidet
3.3AirwayFlowRate
B.4RecoveryFromanExcessBackPressure(Inversion)Condition
3.5 Leak Tightness
5.1 Test Method. The valve shall be tested in accordance with the hydrostatic pressure test in ASTM F409 using a rnal pressure of 25 psi (172 kPa) for 1 hr. .5.2 Performance Requirements. The valve shall show no evidence of leakage and demonstrate air tightness
3.6 Thermal Cycling
ResistancetoHousehold
esistancetoChemicalsa
3.11LifeCycle
4 MARKING, IDENTIFICATION, AND INSTRUCTI
GB∕T 33941.1-2017 土方机械 结构件应力测试方法 第1部分：通则4MARKING,IDENTIFICATION,ANDINSTRUCTIONS 4.1 Marking and Identification
MARKING,IDENTIFICATIONANDINSTRUCTIONS 4.1 Marking and Identification
4.2 Instructions
both of the following:
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A112ASMESTANDARDSRELATEDTOPLUMBING
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