FLANGE

Anchor Flange, Blind Flange, Weld neck Flange, Long Weld Neck Flange, Lap Joint, Orifice Flange, Socket Weld, Slip On, Threaded Flange, Ring Spacer, Spectacle Flange.

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PRODUCTS

WELDED STEEL PIPE

  • ERW: API 5L ASTM A53 ASTM A178 A500/A501 A691 A1020, A252, A672, EN10219
  • LSAW: A1020, A252, A672, EN10219
  • SSAW: API 5L, ASTM A53, ASTM A252, EN10219, EN10217

FLANGE

  • ANCHOR FLANGE

    Anchor Flange is a flange use to restrain pipe movement(axial movement) in a piping system. Very similar looks as Weld Neck flange, but it has two hubs on both both sides to allow weld with the pipes.

  • BLIND FLANGE

    Blind flange is usually installed at the end of any piping system either on a header or branch connection or on a valve and functions as a means for positive isolation of the piping system.

  • WELD NECK

    A Weld Neck flange (WN Flange) consists of a circular fitting with a protruding rim or neck (hub) around the circumference. Widely used in all applications, it is easily recognized by its long tapered neck on the flange. The tapered neck can provide high strength reinforcement to support flange and pipe.

  • LONG WELD NECK

    Long Weld Neck Flange(LWN flange) is also call integral flange, is identical to Weld Neck Flange, but it has a long protruding hub or tapered neck and a bevel end, to butt welding with the matching pipe.

  • LAP JOINT FLANGE

    Lap Joint Flange (LJF), is a flange that consists of two parts, a stub end and the backing flange. On a Lap Joint, the flange slides over the pipe and the stub end is the connection where the gasket sits. The end where the gasket sits is the same outside diameter as the face of a raised face flange.

  • ORIFACE FLANGE

    Orifice Flange: Orifice Flange are used in conjunction with orifice meters to measure the flow rate of liquids or gases in the respective pipeline, using tapped or socket weld style meter connections located on the outside diameter of the flanges, using tapped or socket weld style meter connections located on the outside diameter of the flanges.

  • RING FLANGE

    Ring type joint flange, abbreviated as RTJF, is a type of flange that uses a metal ring that sits in a hexagonal groove as a gasket to seal the flange pair. The flanges seal when the bolts are tightened and the gasket is compressed into the groove making a metal to metal seal

  • SPADE RING SPCAER FLANGE

    Spades Ring Spacers Flanges are forged products used to blind pipelines temporarily or permanently. ASME B16.48 covers the dimensions and specifications of these spacers ring flanges

  • PLATE FLANGE

    Plate Flange is a flat, circular disk that is welded onto the end of a pipe and allows it to be bolted to another pipe. Typically used in fuel and water pipelines, the two plate flanges will be bolted together with a gasket in between them. The plate flange will have bolt holes all around the perimeter and will be used to create junctions, tees and joints.

  • SOCKET WELD FLANGE

    Socket Weld Flange (SWF) is similar to Slip on Flange, but it has a recessed area (like a shoulder) in the flange bore, this shoulder serves as a guide to set the depth of the pipe that inserted to the flange. It Socket welding flange initially designed for high pressure small diameters piping system.

  • SLIP ON FLANGE

    Slip-on flanges are installed on pipes by slipping on the flange bore over the pipe outside diameter and securing it to the pipe by fillet welds. There is no full penetration weld between the pipe and slip-on flanges, hence the joint cannot be subject to radiography.

  • SPECTACLE BLIND FLANGE

    Spectacle blind or Figure 8, is a safety device used to isolate a section of line or piece of equipment when the line or equipment needs to be inspected or removed from service. Figure 8 are generally two metal discs that are attached to each other by a small section of steel.,cut to fit between two pipe flanges and usually sandwiched between two gaskets.The shape is similar to a pair of glasses or “spectacles” – hence the name spectacle blind.

  • THREADED FLANGE

    Threaded (Screwed) Flange has a threaded bore inside the flange bore which fits on the pipe with matching male thread on the pipe. The taper pipe threads conforming to ASME B1.20.1 in its bore can be used in piping systems where it is not possible to carry out welding of the pipe, such as highly explosive environment where welding can create a potential hazard.

We supply all types Flanges in different materials, and manufacturing standards: Anchor Flange, Blind Flange, Weld neck Flange, Long Weld Neck Flange, Lap Joint, Orifice Flange, Socket Weld, Slip On, Threaded Flange, Ring Spacer, Plate, and Spectacle Flange.

Flange Face Types

Flat Face (FF)

Usually for 150 (psi) rating pipe class. Used for utility fluids like Cooling Water and Low Pressure Nitrogen

Raised Face (RF)

Specified up to 600 (psi) rating pipe class.

 

Ring Type Joint (RTJ)

From 900 Rating (psi) and above pipe class

 

Tongue & Groove

Specified to handle extremely hazardous fluids like Liquid Ammonia.
Flange Nominal Diameter Range:  1/2” – 96”, DN15-DN2000
Pressure Class Rating: 150# – 2500# (PN10 – PN450)

Flange Materials

Carbon Steel ASTM A105/A105N
A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2
A694 F42, F46, F48, F50, F52, F56, F60, F65, F70
A516.60, 65, 70 (Spectacle Blind Flange, Spacer Ring/Spade Flange)
Steel RST37.2, C22.8
Stainless Steel ASTM A182 F304/304L/304H, F316/316L, F316H, F316TI, F310, F321/321H, F317L, F317H, F347/F347H
DIN 10222-5:  1.4301, 1.4307, 1.4401, 1.4404, 1.4571, 1.4541, 1.4438, 1.0460, 1.4435, 1.4057, 1.4006, 1.4021
Alloy Steel ASTM A182 F1, F5, F9, F11, F22, F91
Special Alloy -Duplex ASTM A182 F51/UNS S31803 – F51/F60 - 1.4462 – UNS S31803
Super Duplex Steel ASTM A182 F53/UNS S32750
ASTM A182 F55 / UNS S3260, F53 – 1.4410 – UNS S532750
Nickel Nickel 200, Monel 400, Inconel 600/625, Incoloy 825/800

Manufacturing STD

Standard

Type

Class

Size

ASME B16.5

WN/LWN/SO/Blind/Lap Joint

150#-2500#

1/2'-24'

(Except Blind Flange 2500lb 1/2'-12')

SW flange

150#-1500#

1/2'-3'

(Except 1500# 1/2'-2 1/2')

Threaded

150#-900#

1/2'-24'

1500# 2500#

1/2'-2 1/2'

ASME B16.47 Series A

WN/blind flange

150# -900#

22'-48'

(Except 900# Size:26'-48')

ASME B16.47 Series B

WN/blind flange

75#-300#

26'-48'

400# 600# 900#

26'-46'

DIN2527

Blind flange

PN6-PN100

DN10-DN1000

DIN2543

SO flange

PN16

DN10-DN1000

DIN2544

SO flange

PN25

DN10-DN1000

DIN2545

SO flange

PN40

DN10-DN500

DIN2565

Threaded flange with Neck

PN6

DN6-DN200

DIN2566

Threaded flange with Neck

PN16

DN6-DN150

DIN2567

Threaded flange with Neck

PN25 PN40

DN6-DN150

DIN2568

Threaded flange with Neck

PN64

DN10-DN150

DIN2569

Threaded flange with Neck

PN100

DN10-DN150

EN1092-1:2002

Plate flange for welding/

loose plate flange with weld-on plate collar or for lapped pipe

 end/Blind Flange/WN flange

PN2.5-PN100

DN10-DN4000

JIS B2220

Welding flange,

 Lap joint flange,

 Threaded flange

PN6-PN100

DN10-DN1500

BS4504 BS10 Table D/E

Plate Flange for welding/

WN flange/blank Flange

PN6-PN100

DN10-DN1500

Other Products

Anchor/Swivel/Girth/l

AP Joint/Reducing/Orifice

Spectacle blind/Paddle Blind/

Spacer Ring/Orifice Plate/Bleed Ring

Special Products: rings/

forgings/disc/shaft sleeves

Sealing Surface

RF FF RTJ TF GF LF LM

Flange Face Finish

Stock finish/spiral serrated/

concentric serrated/smooth finish

(Ra 3.2 and 6.3 micrometers)

125-250 AARH(it is called smooth finish)

250-500 AARH(it is called stock finish)

Coating

Vanish, yellow paint, anti-rust oil, galvanizing etc

Material Grade

Nickel Alloy Steel

ASTM/ASME B/SB564 UNS N02200(NICKEL 200), 

UNS N04400(MONEL 400),

UNS N08825( INCOLOY 825),UNS N06600(INCONEL 600),

UNS N06601(INCONEL 601), UNS N06625(INCONEL 625),

 UNS N10276(HASTELLOY C276),

ASTM/ASME B/SB160 UNS N02201(NICKEL 201), 

ASTM B/SB472 UNS N08020(Alloy 20)

Copper Alloy

ASTM/ASME B/SB151 UNS C70600(CuNi 90/10), 

C71500(CuNi 70/30)

Stainless Steel

ASTM/ASME A/SA182 F304,304L,304H,309H,310H,

316,316H,316L,316LN,

317,317L,321,321H,347,347H

Duplex and Super Duplex Steel

ASTM/ASME A/SA182

 F44,F45,F51,F53,F55,F60,F61

Carbon steel

ASTM /ASME A/SA105(N)

Low Temp Carbon Steel

ASTM/ASME A/SA350 LF2

High Yield Carbon Steel

ASTM/ASME A/SA694 F52,F56 F60, F65, F70

Alloy Steel

ASTM/ASME A/SA182 GR F5,

F9, F11,F12,F22,F91

Titanium

ASTM/ASME B/SB381 Grade 2, Grade 5, Grade 7
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