(愛妃)欧美激情a∨在线视频播放_黄色网站在线观看免费国产无码_亚洲日韩久久久中文字幕_国产精品2024观看久久_一级毛片免费看傲雪网_日日噜噜夜夜爽爽狠狠视频0_国产野外手机在线观看_免费先锋在线资源_成人av男人的天堂_日韩精品一级无码毛片视频

Tel:0576-8917-1999 Fax:0576-8917-1987

Wap Wecat 中文版 English


Technical

The company has the foreign trade proprietary import and export right, the product sells the domestic, the foreign market, has higher awareness and Reputation, the credibility of the enterprise.

  • 09
    2016-07
    Installation
    ?1. Assemble proper materials for the job (proper cement, primer and applicator for the size of piping system to be assembled)
  • 09
    2016-07
    Installation Ⅲ
    A. Characteristics Threading of PVC or CPVC pipe is only recommended for Schedule 80. The wa l l thickness i s diminished at the point of threading and thereby reduces the maximum working pressu...
  • 09
    2016-07
    Pressure/Temperature Relationship - PVC
  • 09
    2016-07
    Thermal Linear Expansion of PVC and CPVC Pipe
    Thermal expansion and contraction is fairly common inmost piping materials. The coeficient of linear expansion or expansivity for PVC and CPVC pipe is the ratio of the change in pipe length per degree...
  • 09
    2016-07
    Water Flow Characteristics — Water-hammer
    When a pipe contains a column of moving liquid, considerable kinetic energy is stored in the liquid by virtue of its mass and velocity. If the velocity is suddenly destroyed by the quick c...
  • 09
    2016-07
    Water Flow Characteristics
    The friction loss in hydraulic flow can be evaluated through the use of various low coeficients. One such coefficient is the Hazen-Williams C factor. This factor for PVC and CPVC plastic pipi...
  • 09
    2016-07
    Pressure/Temperature Relationship
    1. Threading Schedule 40 and SDR/PR pipe is not recommended. 2. Threading Schedule 80 pipe above 4" is not recommended. 3. CPVC threaded connections should be avoided when possible at elevated tem...
  • 09
    2016-07
    Installation Ⅱ
    Helpful Hints 1.?Work quickly and carefully. 2. Use liberal amounts of fresh cement. 3. Do not attempt cementing in the rain or in the presence of moisture. 4. Do not cement whe...


中文版 English

Copyright ? 2017 Zhejiang Huangyan Minghua Plastic Pipe Fittings Co.,Ltd.All Rights Reserve.   浙ICP備11019802號-1  浙公網(wǎng)安備 33100302000346號 XML | Sitemap  Power By:Galaxy