ASME B16.5 has endorsed the design of Long Welding Neck Flange (LWN), which is also known as straight hub welding flange. The LWN Flange is constructed by two sections: the upper section is a heavy-wall barrel, whilst the lower section is a disc-like Plate Flange with all dimensions conforming to ASME B16.5 standard flanges.
Application
sales@ghsailingpipe.com
Size: 1/2''~24''
Class Rating: 150~2500
Facing: RF(raised face);FF(flat face);RTJ(ring type joint);RJ(ring joint face)
TG(tongue and groove face);MFM(male and female face)
Manufacturing process: Push, Press, Forge, Cast, etc.
Material:
Carbon steel:
ASTM A105;
ASTM A266 GR.1,GR.2,GR.3,GR.4
Stainless steel:
304/SUS304/UNS S30400/1.4301
304L/UNS S30403/1.4306;
304H/UNS S30409/1.4948;
309S/UNS S30908/1.4833
309H/UNS S30909;
310S/UNS S31008/1.4845;
310H/UNS S31009;
316/UNS S31600/1.4401;
316Ti/UNS S31635/1.4571;
316H/UNS S31609/1.4436;
316L/UNS S31603/1.4404;
316LN/UNS S31653;
317/UNS S31700;
317L/UNS S31703/1.4438;
321/UNS S32100/1.4541;
321H/UNS S32109;
347/UNS S34700/1.4550;
347H/UNS S34709/1.4912;
348/UNS S34800;
Alloy steel:
ASTM A694 F42/F46/F48/F50/F52/F56/F60/F65/F70;
ASTM A182 F5a/F5/F9/F11/F12/F22/F91;
ASTM A350 LF1/LF2/LF3;
Duplex steel:
ASTM A182 F51/S31803/1.4462;
ASTM A182 F53/S2507/S32750/1.4401;
ASTM A182 F55/S32760/1.4501/Zeron 100;
2205/F60/S32205;
ASTM A182 F44/S31254/254SMO/1.4547;
17-4PH/S17400/1.4542/SUS630/AISI630;
F904L/NO8904/1.4539;
725LN/310MoLN/S31050/1.4466
253MA/S30815/1.4835;
Nickel alloy steel:
Alloy 200/Nickel 200/NO2200/2.4066/ASTM B366 WPN;
Alloy 201/Nickel 201/NO2201/2.4068/ASTM B366 WPNL;
Alloy 400/Monel 400/NO4400/NS111/2.4360/ASTM B366 WPNC;
Alloy K-500/Monel K-500/NO5500/2.475;
Alloy 600/Inconel 600/NO6600/NS333/2.4816;
Alloy 601/Inconel 601/NO6001/2.4851;
Alloy 625/Inconel 625/NO6625/NS336/2.4856;
Alloy 718/Inconel 718/NO7718/GH169/GH4169/2.4668;
Alloy 800/Incoloy 800/NO8800/1.4876;
Alloy 800H/Incoloy 800H/NO8810/1.4958;
Alloy 800HT/Incoloy 800HT/NO8811/1.4959;
Alloy 825/Incoloy 825/NO8825/2.4858/NS142;
Alloy 925/Incoloy 925/NO9925;
Hastelloy C/Alloy C/NO6003/2.4869/NS333;
Alloy C-276/Hastelloy C-276/N10276/2.4819;
Alloy C-4/Hastelloy C-4/NO6455/NS335/2.4610;
Alloy C-22/Hastelloy C-22/NO6022/2.4602;
Alloy C-2000/Hastelloy C-2000/NO6200/2.4675;
Alloy B/Hastelloy B/NS321/N10001;
Alloy B-2/Hastelloy B-2/N10665/NS322/2.4617;
Alloy B-3/Hastelloy B-3/N10675/2.4600;
Alloy X/Hastelloy X/NO6002/2.4665;
Alloy G-30/Hastelloy G-30/NO6030/2.4603;
Alloy X-750/Inconel X-750/NO7750/GH145/2.4669;
Alloy 20/Carpenter 20Cb3/NO8020/NS312/2.4660;
Alloy 31/NO8031/1.4562;
Alloy 901/NO9901/1.4898;
Incoloy 25-6Mo/NO8926/1.4529/Incoloy 926/Alloy 926;
Inconel 783/UNS R30783;
NAS 254NM/NO8367;
Monel 30C
Nimonic 80A/Nickel Alloy 80a/UNS N07080/NA20/2.4631/2.4952
Nimonic 263/NO7263
Nimonic 90/UNS NO7090;
Incoloy 907/GH907;
Nitronic 60/Alloy 218/UNS S21800
LWN Flange LWN Flange,Lwn Forged Flange,ASME LWN Flange,Long Welding Neck Flange He Bei GuangHao Pipe Fittings Co .,LTD (Cangzhou Sailing Steel Pipe Co., Ltd) , https://www.guanghaofitting.com
Material
ADC-12,A380,Alu.6061,6063,zinc 3# etc.
Specification
As pern your PDF,CAD,Solide work,Proe drawing or samples
Casting Process
Die casting
Casting Material
Aluminum, Aluminum alloy, zinc alloy
Casting Weight
850G
Casting Standard
ISO, ASTM, EN, DIN, JIS, BS, etc.
Casting Tolerance
As per drawing or samples
Surface Roughness
Ra 1.6um-12.5um
Surface Operation
Polishing, Sand Blasting, Plating, Paint, Powder Coating, Anodizing,chrome plated etc.
Heat Treatment
Quenching, Annealing, Aging, etc.
Equipments
die casting machines,CNC machining center, Electric Discharge Machines,Electric Discharge Machines,Grinding machine,Computer gong machine,CNC lathe,CNC lathe,drilling machine,punching machine,lapping machine,polishing machine,Three dimensional detector,projector,Electronic Ruler,callipers etc.
Usage
electrical appliances, medical devices, LED lighting, housewares, Telecommunication,auto & motorcycle,military equipment industry etc.
IPQC
IPQC through the whole machining process, spot inspection for material coming-in, spot inspection for machining process and final inspection based on AQL
Company Profile
Lituo Metal Die Casting Co., Ltd., a factory cover 20, 000 square meters, has more than 18 years' experience in developing and providing highest quality die casting parts and mould, CNC machine parts for China and oversea clients! Our products are very popular in Europe, America, Japan and South Korea.Â
 We are a professional and experienced manufacturer of following parts in different design and sizes for all types of industries such as electrical appliances, medical devices, LED lighting, housewares, Telecom, communication,auto & motorcycle,military equipment product industry etc.Â
 We have advanced Equipment and instruments, such as 4 sets of cold chamber Zinc alloy die casting machines, 6 sets of hot chamber  Aluminum alloy die casting machines, 15 sets of CNC lathe machines etc.
Certificates:ISO9001:2008,SGS,ROHS
Our Advantage
1.GOOD QUALITY-have the significant advantages in the performance of strength, durability.
2.RICH VARIETY & WIDE USES.Such as electrical appliances, medical devices, LED lighting, housewares, Telecom, communication,auto & motorcycle,military equipment product industry etc.
3.Reasonable Price. Exquisite workmanship with competitive price.
4.EXCELLENT SERVICE-Strong R&D team,Professional Foreign Trade service team,Convenient transportation advantage on Sea/Land/Air shipping. Â
5.Eco-friendly,safe,easy to use.
Our Goal
Custom and Standard Manufacturing Service
A variety of Manufacturing Process Integration
Quality and Delivery Time Guaranteed
Effective Communication Ability
Â
The long welding neck flange is mainly applied to the construction of pressure vessel functioning as a nozzle (such as a thermowell nozzle). To attach a common welding neck flange to a pressure vessel, a piece of pipe is required with additional welding. A LWN flange on the other hand attaches directly to the vessel, hence, it can be viewed as an integrally reinforced nozzle. It avoids making a weld seam at pipe to flange and provides self-reinforcement.
Aluminum Die Casting Auto Parts Made in China
Model NO.: LT911
Pressure Chamber Structure: Horizontal
Tolerance Grade: 4
Casting Surface Quality Level: 1
Certification: RoHS, ISO 9001:2008
Aluminium Casting: ADC-12, A380 and Other Materials
Trademark: Lituo
Transport Package: Inner Plastic and Then in Carton. or Customized
Specification: NO
Origin: Dongguan, China
Â