[] _ Wholesale Stainless Steel Flanges of stainless steel pipe flanges _ Cathay Cathay welcome you courtesy of Hebei. Cathay Pacific Pipeline Equipment Co., Ltd. Hebei (www.hbgtgd.com) had been "Business League certification", please rest assured purchase through the entire network, click on the page check "Business League certification icon," the company authentication information. You can also click on the "Business League Service Icons" on this page directly contact our customer service! Welding and butt welding flange means and pipe stainless steel flange connection parameters when welding flange welding just one side welding without welding pipes and flanges connecting the mouth, butt welding flange Installation requires double-sided welding flanges. So welded flange generally used for low and medium pressure pipe, welded flange for connection to the high-pressure pipe, welded flange is generally at least PN2.5MPa, using the butt is to reduce stress concentration, the general mostly welded flange with neck flange also called nipple flange. So welded flange installation fee wholesale high quality stainless steel flange, labor costs, and auxiliary fees are high, because more than one process. With neck flat welding flange with neck flat welding flange sketches (HG20592-2009 (PN series) \ HG20615-2009 (calss series), GB/T9116), the height of the lower neck, stainless steel flanges, stiffness of the flange carrying capacity increased. Compared with welded flange stainless steel flange dealers, welding capacity, electrode consumption is high, can not withstand high temperature and pressure, and repeated bending and temperature fluctuations, but the on-site installation more convenient, you can omit the seam rubbed injury processes more popular.