ANSI RF Socket Weld Flange-Forged Flanges-Jiangsu haohua industry Group

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JIANGSU HAOHUA INDUSTRY GROUP
Tel: +86-512-58220050
Fax: +86-512-58810865
E-mail: sales@haopipe.com
MSN: haopipe@hotmail.com
Skype: haopipe

Forged Flanges

ANSI RF Socket Weld Flange

Description:

Jiangsu Haohua Industry Group as one of the leading suppliers in China to supply Aluminium bar for profile etc. [Contact person:Ms chris ; Email: chris@haopipe.com ; Mob: 0086-180-515-86050]

Specification
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Description:

ANSI RF Socket Weld Flange

Socket Weld flanges were initially developed for use on small-size high pressure piping. Their static strength is equal to Slip On flanges, but their fatigue strength 50% greater than double-welded Slip On flanges.

The connection with the pipe is done with 1 fillet weld, at the outside of the flange. But before welding, a space must be created between flange or fitting and pipe.

ASME B31.1 1998 127.3 Preparation for Welding (E) Socket Weld Assembly says:
In assembly of the joint before welding, the pipe or tube shall be inserted into the socket to the maximum depth and then withdrawn approximately 1/16" (1.6 mm) away from contact between the end of the pipe and the shoulder of the socket.

The purpose for the bottoming clearance in a Socket Weld is usually to reduce the residual stress at the root of the weld that could occur during solidification of the weld metal. The image shows you the X measure for the expansion gap.

The disadvantage of this flange is right the gap, that must be made. By corrosive products, and mainly in stainless steel pipe systems, the crack between pipe and flange can give corrosion problems. In some processes this flange is also not allowed. I am not an expert in this matter, but on the internet, you will find a lot of information about forms of corrosion.

Also for this flange counts, that principle always firstly a pipe must be welded and then just a fitting.

Materials	Carbon Steel: ASTM A105. ASTM A350 LF1. LF2, CL1/CL2, A234, S235JRG2, P245GH
	P250GH, P280GHM 16MN, 20MN ,20#
	Stainless Steel: ASTM A182, F304/304L, F316/316L
Types	Slip On Plate Flange/Plate Flange , Slip On Hub Flange/Bossed
	Welding Neck Flange/WN flange/ Loose Flange/Lapped Flange /Backing Flange
	Blind Flange/Blank flange, Lap Joint Flange /LJ Flange
	Socket Weld Flange/SW Flange Threaded Flange/Screwed Flange
	Loose Flange/Lapped Flange Backing Flange RTJ /o-Ring
	Custom Flange/Special Flange Hot/Cold/Electro Gavanized Flange
Standards	ANSI/ASME/ASA B16.5 FLANGES, ANSI B16.47 A/B FLANGES
	JIS B 2220 FLANGES, KS B 1503, DIN SERIES, UNI, EN1092-1, BS4504
	BS 10 TABLE D/E/F FLANGES, SANS 1123 FLANGES/SABS 1123
	GOST12820-80/GOST12821-80, NFE29203/NS/AS/ISO/AWWA FLANGES
Pressure &Ratings	150LBS, 300,600,900,1500,2500 ANSI, ASA B16.5
	PN6 PN10 PN16 PN25 PN40 PN64-DIN/UNI
	PN6 PN10 PN16 PN25 PN40 PN63-EN1092-1/BS4504
	PN0.6Pa, PN1.0Pa, PN1.6. PN2.5,PN4.0-GOST12820-80
	PN0.6Pa, PN1.0Pa, PN1.6. PN2.5,PN4.0, PN6.3. -GOST12821-80
	600kPa, 1000.1600.2500.4000.-SANS 1123
	5KG, 10KG, 16KG, 20KG, 30KG, 40KG-JIS B2220/KS B1503
	TABLE D, TABLE E ,TABLE F-BS 10, AS2129
	CLASS D, CLASS E, CALSS F, AWWA C207
Surface Treatment	Rust Prevention , Black Paint Coating or Phosphating Treatment with Black Color
	Varnish Paint Coating, Varnish Oil Coating,
	Electro Galvanizing Coating (Cold Galvanizing, Color Golden or silvery white, Coating thickness 20~30(um)
	Hot Dip Galvanizing Coating (Coating Thickness 200um around)
Technical	Forging
Application	Water works, Shipbuilding industry, Petrochemical & Gas industry, Power industry, Valve industry
	and general pipes connecting projects etc.
Inspection	Quality Control System-Well Equipments and Machinery-Well Workers and Engineers
Packing	Wooden Pallets or Wooden Cases or As Customers' Requirements
Payment Terms	L/C Or 30 % Advance By T/T and The balance Will be Paid After the copy of B/L
Delivery Time	30 Days \after the Advance or the L/C
After-Sales Service	Orders and Products Tracking System

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JIANGSU HAOHUA INDUSTRY GROUP
Tel: 0086-512-58220050 Fax:0086-512-58810865 E-mail: sales@haopipe.com
Add: No.17,Southeastern Avenue, Economic Development Zone (South Area),Zhangjiagang City, Jiangsu Province, China.