显示标签为“Flange”的博文。显示所有博文
显示标签为“Flange”的博文。显示所有博文

2011年8月31日星期三

The Brief Introduction Of The Flange

Flange is a rim (or lip) or a rib (either internal or external). It also provides strength (flange of an iron beam or a T-beam) and it is utilized as a guide (for train wheel). In terms of pipes or piping system, flanges are used to attach an object (steam cylinder, pipe endings, etc.). Flanges could also be found in cameras (lent mounts). Therefore, flanged rail is bar with flange on a side to keep pipes, wheels, etc. from being dislodged into its original place. Flanges have practically a lot of usages, so as their measurements. Flanges are very versatile tool and make assembling and disassembling very easy.
Number of clamps and bolts, size of bolt, bolt hole, bolt circle, outer diameter or OD and maximum inside diameter or ID are the things to consider regarding Flange dimensions. NW 16 CF/Mini has an OD of 1.33 and ID of 0.630. While its bolt hole and circle sizes are 0.169 and 1.063 respectively. An NW 25 CF/2 ½" has 0.88 and 2.11 for the ID and OD. It has bolt hole of 0.265 and a bolt circle of 0.169 as well. No clamps needed for this size and the number of bolt is four. For NW 35 CF/2 ¾", OD and ID sizes are 2.75 and 1.500. 0.263, 2.312 and 2.75 are considered their bolt measurements. No need for clamps as well and the bolt number is 6. NW 50 CF/3 3/8" has 3.37 and 1.88 for its OD and ID. Its bolt hole and circle sizes are 0.332 and 2.850. Eight (8) is the required bolt number.
Flange sizes and measurements, because of their practical usages, are now standardized. Since their sizes are variable, one of the best references would be the internet. There are graphic pages in which actual sizes are written for easy access and recognition. In some 'do-it-yourself' stores, always ask store assistants for help regarding the right sizes of flanges for practicality. Having a 'know-how' or something about flange sizes is another 'plus' in making any task or project be perfect. Available flange measurements indicate the different variations of its usage. Flange is utilized as guide or support. This goes for train wheel. Flanges are also used for pipe linking and construction. For camera lenses, flanges are vital parts as well. Hot water tanks also use flanges to permit proper water flow.

2011年8月4日星期四

The Type of Flange

Flange are often used in plumbing, pipelines and construction zones. Flanges are very useful because they can be adapted to the needs of a project. If a pipeline needs to change course, for example, the flange can be removed and changed to accommodate the new pipeline channel. Flanges are also valuable because they serve as reinforcement for pipes, making them much stronger than they are on their own.
A split Flange is easily installed on pre-existing piping. It is made up of two interlocking pieces that fit securely together using nuts and bolts or welding it into place. Because it is made of two parts, split flanges are used to reinforce weakened areas of piping, or to add an attachment in places conventional flanges cannot.
Anchor Flange are used to anchor pipe - often when crossing streams or ravines. They are a double hub piece of steel that is put into a special holder that is part of a piling to support the pipeline and resist loading. The anchor structure is welded to the pipe and usually embedded in concrete. Anchor flanges actually contain axial thermal expansion - that is axial thrust in pipelines. The assumed design temperature change is 90 degrees Fahrenheit. The thrust is transferred to the anchor foundation -in which the anchor is mounted. These flanges are used at crossings and points with changes in pipeline direction.
An Expander Flange is a type of welding neck pipe flange used to increase pipe size at the flange connection. Expander flanges are also known as a cost-effective alternative to using a separate reducer-welding neck flange combination. Some advantages of the expander flange are that its compact size saves space when compared to reducer-welding neck flange and that only one butt-weld is needed for installation making it very cost-effective.
Flanges manufactured in the United States are judged by ASME standards. Flanges that are made to ASME standards are usually made from forged materials. Flanges are important pieces of equipment that are used on most every construction site, pipeline and plumbing job in the world.Zhejiang Wanli Valve Manufacture Co., Ltd . is a professional manufacturer specializing in various valves and such related products as flanges and strainers with rich experience in design, manufacturing and marketing. our leading products are gate valve, check valve, globe valve, ball valve, butterfly valve, Y type strainer, basket strainer and flanges;more information pls link to www.wlvalves.com