范围 This specification establishes the manufacturing requirements for dual-blocking (Tru-Bloc) and downstream-only blocking (true union) quarter-turn ball valves of PVC, CPVC, PP, and PVDF materials intended for use in industrial, commercial, and residential pressure-piping systems, where cost-effective, long-term resistance to corrosion is of prime importance, and the service temperature does not exceed: PVC, 140oF; CPVC, 210oF; PP, 180oF; PVDF, 280oF. 主要零部件应该由下列之一构造: Major component parts shall be constructed from one of the following: NPS(美国标准直管螺纹), DN15 - DN150, PVC(聚氯乙烯),根据ASTM D1784单元类别为12454,工业灰色,阀门类型应该是全流道(全端口)Tru-Bloc, TU (NPS DN150为标准端口),或Tru-Bloc, SU (仅限于NPS DN15 - DN50)。 NPS 1/2 – 6 PVC (polyvinyl chloride), Cell Class 12454 per ASTM D 1784, industrial gray in color, and the valve style shall be full-port Tru-Bloc, TU (NPS 6 is standard port) or Tru-Bloc, SU (NPS 1/2 – 2 only). NRS, DN15 - DN150, CPVC (氯化聚氯乙烯),根据ASTM D 1784,单元类别为23447,工业淡灰色,阀门类型应该是全流道(全端口)Tru-Bloc, TU (NPS, DN150为标准端口),或SU (仅限于NPS, DN15 - DN50)。 NPS 1/2 – 6 CPVC (chlorinated polyvinyl chloride), Cell Class 23447 per ASTM D 1784, industrial light gray in color, and the valve style shall be full-port Tru-Bloc, TU (NPS 6 is standard port) or Tru-Bloc, SU (NPS 1/2 – 2 only). NPS, DN15 - DN100, PP (聚丙烯),根据ASTM D 4101, 单元类别为PP0110-M30-A10120 (玻璃填充材料)和单元类别为PP0110-B67157 (无填充材料)。这些材料应该为深黑色。阀门类型应该为全流道(全端口)True Union. NPS 1/2 – 4 PP (polypropylene) Cell Class PP0110-M30-A10120 (glass-filled material) and Cell Class PP0110-B67157 (unfilled material) as per ASTM D 4101. These materials shall be pigmented jet black. Valve style shall be full-port True Union. NPS, DN15 - DN100, Chem-Pure® (天然聚丙烯),根据ASTM D 4101, 单元类别为PP0210-B45145. 材料应该为未染色并且为高纯度。阀门类型应该为全流道(全端口)True Union. NPS 1/2 – 4 Chem-Pure® (natural polypropylene) Cell Class PP0210-B45l45 as per ASTM D 4101. Materials shall be unpigmented and of the highest purity. Valve style shall be full-port True Union. NPS, DN15 - DN100, PVDF (聚偏二氟乙烯),根据ASTM D 3222, 为类型I化合物。这种材料应该是红Kynar® (着红色),具有紫外线不透明度为最大值得特点,阀门类型应该是全流道(全端口)Tru-Bloc, TU或True Union. NPS 1/2 – 4 PVDF (polyvinylidene fluoride) Type I compound per ASTM D 3222. The material shall be red Kynar® (pigmented red) for maximum UV opaqueness, and the valve style shall be full-port Tru-Bloc, TU or True Union. NPS, DN15 - DN100, PVDF (聚偏二氟乙烯),根据ASTM D 3222, 为类型I化合物。这种材料应该是天然(未着色)700系列Kynar®,具有高纯度和最大紫外线辐射透明度的特点,阀门类型应该是全流道(全端口)Tru-Bloc, TU或True Union. NPS 1/2 – 4 PVDF (polyvinylidene fluoride) Type I compound per ASTM D 3222. The material shall be natural (unpigmented) 700 Series Kynar® of the highest purity and maximum transparency to UV radiation, and the valve style shall be full-port Tru-Bloc, TU or True Union. 尺寸 / 阀门结构 PVC and CPVC socket-end connections shall conform to the requirements of ASTM D 2467 and F 439 for Schedule 80 pressure fittings, PP and PVDF socketend connections shall be suitable for heat-fusion welding as specified in ASTM D 2567 Technique I. 所有螺纹端口连接应该符合ASTM D 2467和F 439以及ASTM F 1498关于锥管螺纹的要求。 All threaded-end connections shall conform to the requirements of ASTM D 2467 and F 439 as well as ASTM F 1498 for tapered pipe threads. 性能 Valves shall be rated for 150 psi non-shock water service at 73oF water and have a minimum burst rating of 3.3 times the rated working pressure. Valves shall be certified to ASTM F 1970 by a third-party agency. 标记 Valves shall be clearly marked with the manufacturer’s name or trademark, nominal size, material designation, ASTM number or equivalent symbol indicating compliance with applicable standards, and country of manufacture. PVC and CPVC valves shall additionally bear the NSF International certification mark, NSF-pw, (verifying approval for conveyance of potable water). 安装 At the specifying engineer’s option, the manufacturer shall provide, at no additional cost, on-site training for installation/maintenance personnel (in USA only). Otherwise, installation shall be as specified by the manufacturer’s printed instructions. |
建议规格 In the interest of safety, owners of sodium hypochlorite transfer and injection piping systems must have confidence that the PVC or CPVC ball valves in their system were properly manufactured, cleaned, assembled, tested, and oriented during installation in accordance with intended system design. Therefore, engineering specifications for bleach transfer and injection systems should include the following product, installation, and pre-commissioning inspection requirements:
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不要将本样本中的测试数据用在压缩空气或其它气体上。如果需要关于专用于压缩空气和其它气体的抗龟裂热塑塑料管道系统请参阅Chemtrol Chem-Aire®产品样本。 Do not use or test the products in this catalog with compressed air or other gases. See Chemtrol Chem-Aire® literature for information about shatter-resistant thermoplastic piping systems specifically designed for compressed air and other gases. |
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