欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    VA 22 05 23-2009 GENERAL-DUTY VALVES FOR PLUMBING PIPING.pdf

    • 资源ID:1074866       资源大小:33.06KB        全文页数:9页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    VA 22 05 23-2009 GENERAL-DUTY VALVES FOR PLUMBING PIPING.pdf

    1、12-09 22 05 23 - 1 SECTION 22 05 23 GENERAL-DUTY VALVES FOR PLUMBING PIPING SPEC WRITER NOTE: Delete between /-/ if not applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraphs. PART 1 - GENERAL 1.1 DESCRIPTION A. This section describes

    2、 the requirements for general-duty valves for domestic water and sewer systems. 1.2 RELATED WORK A. Section 22 05 11, COMMON WORK RESULTS FOR PLUMBING. 1.3 SUBMITTALS A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, and SAMPLES. B. Manufacturers Literature and Data: 1. Val

    3、ves. 2. Backflow Preventers. 3. Pressure Reducing Valves. 4. Backwater Valves5. All items listed in Part 2 - Products. 1.4 APPLICABLE PUBLICATIONS A. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic des

    4、ignation only. B. American Society for Testing and Materials (ASTM):A536-84(R 2004) Standard Specification for Ductile Iron Castings C. American Society of Sanitary Engineering (ASSE) ASSE 1003-01 (R 2003) Performance Requirements for Water Pressure Reducing Valves ASSE 1012-02 . Backflow Preventer

    5、with Intermediate Atmospheric Vent ASSE 1013-05 . Reduced Pressure Principle Backflow Preventers and Reduced Pressure Fire Protection Principle Backflow Preventers D. International Code Council (ICC) IPC-06 (R 2007) International Plumbing Code E. Manufacturers Standardization Society of the Valve an

    6、d Fittings Industry, Inc. (MSS): Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-12-09 22 05 23 - 2 SP-25-98 . Standard Marking System for Valves, Fittings, Flanges and UnionsSP-67-02a (R 2004) Butterfly Valve of the Single flange Type (Lug Wafer) SP

    7、-70-06 . Cast Iron Gate Valves, Flanged and Threaded Ends. SP-72-99 . Ball Valves With Flanged or Butt Welding For General Purpose SP-80-03 . Bronze Gate, Globe, Angle and Check Valves. SP-110-96 Ball Valve Threaded, Socket Welding, Solder Joint, Grooved and Flared Ends 1.5 DELIVERY, STORAGE, AND HA

    8、NDLING A. Valves shall be prepared for shipping as follows: 1. Protect internal parts against rust and corrosion. 2. Protect threads, flange faces, grooves, and weld ends. 3. Set angle, gate, and globe valves closed to prevent rattling. 4. Set ball and plug valves open to minimize exposure of functi

    9、onal surfaces 5. Set butterfly valves closed or slightly open. 6. Block check valves in either closed or open position. B. Valves shall be prepared for storage as follows: 1. Maintain valve end protection. 2. Store valves indoors and maintain at higher than ambient dew point temperature. C. A sling

    10、shall be used for large valves. The sling shall be rigged to avoid damage to exposed parts. Hand wheels or stems shall not be used as lifting or rigging points. PART 2 - PRODUCTS 2.1 VALVES A. Asbestos packing and gaskets are prohibited. B. Bronze valves shall be made with dezincification resistant

    11、materials. Bronze valves made with copper alloy (brass) containing more than 15 percent zinc shall not be permitted. C. Valves in insulated piping shall have 50 mm or DN50 (2 inch) stem extensions and extended handles of non-thermal conductive material that allows operating the valve without breakin

    12、g the vapor seal or disturbing the insulation. Memory stops shall be fully adjustable after insulation is applied. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-12-09 22 05 23 - 3 D. Exposed Valves over 65 mm or DN65 (2-1/2 inches) installed at an

    13、elevation over 3.6 meters (12 feet) shall have a chain-wheel attachment to valve hand-wheel, stem, or other actuator. E. Ball valves, pressure regulating valves, gate valves, globe valves, and plug valves used to supply potable water shall meet the requirements of NSF 61. F. Shut-off: 1. Cold, Hot a

    14、nd Re-circulating Hot Water: a. 50 mm or DN50 (2 inches) and smaller: Ball, MSS SP-72, SP-110, Ball valve shall be full port three piece or two piece with a union design with adjustable stem package. Threaded stem designs are not allowed. The ball valve shall have a SWP rating of 1035 kPa (150 psig)

    15、 and a CWP rating of 4140 kPa (600 psig). The body material shall be Bronze ASTM B584, Alloy C844. The ends shall be solder, b. Less than 100 mm DN100 (4 inches): Butterfly shall have an iron body with EPDM seal and aluminum bronze disc. The butterfly valve shall meet MSS SP-67, type I standard. The

    16、 butterfly valve shall have a SWP rating of 1380 kPa (200 psig). The valve design shall be lug type suitable for bidirectional dead-end service at rated pressure. The body material shall meet ASTM A 536, ductile iron. c. 100 mm (DN100) (4 inches) and larger: 1) Class 125, OS replace with new valves.

    17、 3.2 VALVE INSTALLATION A. Install valves with unions or flanges at each piece of equipment arranged to allow service, maintenance, and equipment removal without system shutdown. B. Valves shall be located for easy access and shall be provide with separate support. Valves shall be accessible with ac

    18、cess doors when installed inside partitions or above hard ceilings. C. Valves shall be installed in horizontal piping with stem at or above center of pipe D. Valves shall be installed in a position to allow full stem movement. Provided by IHSNot for ResaleNo reproduction or networking permitted with

    19、out license from IHS-,-,-12-09 22 05 23 - 9 E. Install chain wheels on operators for ball butterfly gate and globe valves NPS 100 mm or DN100 (4 inches) and larger and more than 2400 mm (12 feet) above floor. Chains shall be extended to 1500 mm 3600 mm (60 inches) above finished floor. F. Check valv

    20、es shall be installed for proper direction of flow and as follows: 1. Swing Check Valves: In horizontal position with hinge pin level. 3.3 ADJUSTING A. Valve packing shall be adjusted or replaced after piping systems have been tested and put into service but before final adjusting and balancing. Replace valves shall be replaced if persistent leaking occurs. - - E N D - - - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-


    注意事项

    本文(VA 22 05 23-2009 GENERAL-DUTY VALVES FOR PLUMBING PIPING.pdf)为本站会员(medalangle361)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开