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Welding Neck Flanges
The welding neck flange is normally referred to as the "high hub".
It is designed to transfer stresses to the pipe,thereby reducing high stress concentrations at the base of the flange.
The welding neck flange is the best designed buttwelded flange of those currently available because of its inheret structural value.
It is expensive because of the design.
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| specifications︰ | FLANGES Standard:
1)ANSI/ASME B 16.5
Size: NPS 1/2 “-24”
CLASS:150#300#400#600#900#1500#2500#
Facing: RF,FF,RTJ
Standard Finish:
a)STOCK FINISH
b)SPIRAL SERRATED OR PHONOGRAPHIC
c)CONCENTRIC SERRATED
d);SMOOTH FINISH;
Material: ASTM A105/A105N; ASTM A350LF2 ;ASTM A182F304F304L ;F316 F316L
2)MSS SP44/ANSI/ASME B 16.47 A
Size: NPS “26-60”
PN: 150LBS ;300LBS; 400LBS; 600LBS; 900LBS;
Facing: RF;FF; RTJ;
Mat: ASTM A105/A105N; ASTM A350LF2 ;ASTM A182F304F304L ;F316 F316L
3)API 605/ANSI/ASME B 16.47 B
Size: NPS“26-60”
PN: 75LBS ;150LBS; 300LBS;
Facing: RF;FF; RTJ;
Mat: ASTM A105/A105N; ASTM A350LF2 ;ASTM A182F304F304L ;F316 F316L
4)DIN 2627,2628,2629,2630,2631,2632,2633,2634,2635,2636,2637,2638
Size: DN10-DN3000
PN: 2.5-400
Facing: RF;FF; RTJ;
Mat: RST37.2/1.0038,C22.8/1.0460
;ASTM A182F304F304L ;F316 F316L
5);JIS/JPI75-7S-15
Size: DN10-DN600
PN: 10KG,20KG,30KG/150-2500LBS
Facing: RF;FF; RTJ;
Mat: JIS G 3201 SF440A,JIS G 3202 SFVC2A, JIS G 4051 S25C ;ASTM A182F304F304L ;F316 F316L
6):BS 3293
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| Advantages︰ | Welding Neck Flanges
The welding neck flange is normally referred to as the "high hub".
It is designed to transfer stresses to the pipe,thereby reducing high stress concentrations at the base of the flange.
The welding neck flange is the best designed buttwelded flange of those currently available because of its inheret structural value.
It is expensive because of the design. |
| Export Markets︰ | Europe,America, Janpan, Middle East, Austrilia, South Africa, |
| Pricing︰ | FOB XINGANG USD 600-900/T |
| Payment Details︰ | L/C T/T |
| Min Order︰ | UNRESTRICT |
| Ship Date︰ | 40T/WEEK |
| Standard Met︰ | ANSI/ASME B16.5, DIN, BS, NF, JIS, KSD,EN, ISO.SFS,AU,UNI, |
| custom_attr9︰ | SURFACE TREATNENT:
a):Antirust oil
b):Yellow painting
c):Black painting
d):Electrogalvanizing
e):Hot-galvanizing
f):Spraying plastic |
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