China Uni Welding Neck Flanges suppliers 1. Introduction: Weld Neck Flange is flanges that designed to be joined to a piping system by butt welding. This kind of flange include lots of specification.
2. Description: welding neck flanges are commonly referred to as weld neck flanges or WN flanges. The Welding Neck Flange consists of a tapered hub which is secured to the pipe by a full penetration butt weld. Because of the additional reinforcement area available in the hub of weld neck flange and due to its installation by welding, the hub becomes an integral part of the pipe. This gives a weld neck flange greater strength and integrity and ability to withstand considerably higher bending moments than a slip-on flange.
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Designation DirectionsDesignation Directionsd1abDfhh1mrsHoleScrewWeight In KG
Rated
Dia.External dia.
of the piped1abDfhh1mrsHoleScrewKilogram
152021651495143563042,54M 120,73
1521,322,5651495143563242,54M 120,73
2025267516105143863842,54M 121,03
2026,9287516105143864042,54M 121,03
2530318516115143864242,84M 121,24
2533,734,58516115143864542,84M 121,23
323839100161401840652634M 161,82
3242,443,5100161401840656634M 161,80
4044,545,5110161501842760634M 162,10
4048,349,5110161501842764634M 162,08
50575812518165184587263,54M 162,81
5060,361,512518165184587563,54M 162,78
6576,177145181851845109063,54M 163,40
8088,9901602020018501010583,78**M 164,20
1001081091802022018521212583,78M 164,90
100114,3115,51802022018521213183,78M 164,75
12513313421022250185512150848M 166,70
125139,714121022250185512156848M 166,45
150159161240222852255121751058M 208,30
150168,3170,5240222852255121841058M 208,00
175193,7195,5270243152260122101058M 2010,3
200219,12212952434022621623510512M 2011,1
25026726935526405257016285125,512M 2216,7
25027327535526405257016292125,512M 2216,3
300323,93264102846025781634412612M 2221,8
350355,6357,547030520258216390126,416M 2231,7
35036837047030520258216390126,416M 2229,2
400406,4408,55253258030851644512716M 2738,3
4004194215253258030851644512716M 2737,0
450457,245958532640308516485127,320M 2745,4
50050851065034715339016548127,320M 3061,1
600609,6611,577036840369518652127,320M 3384,6
700711,271584036910391001875512924M 3387,4
800812,8817950381025391052085512924M 36 x 3109
900914,491810504011254211020955121028M 36 x 3129
100010161020117042125548120221058161228M 39 x 3175
120012201224139048148548130301262161432M 45 x 3257
140014201424159052168548145301465161636M 45 x 3337
160016201624182058193056160351668161740M 52 x 3481
180018201824202062213056170351870161944M 52 x 3591
200020202024223066234562180402072162148M 56 x 4727China Uni Welding Neck Flanges suppliers
website:http://www.hkforging.net/welding-neck-flanges/uni-welding-neck-flanges/