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Flange


 Size:  OD: DN15- DN2000 (1/2''- 80'')
Type: welding neck, slip on, blind, socket welding, threaded, lap-joint
Pressure: 150#, 300#, 600#,900#,1500#, 2500#
Material:  carbon steel A105, C22.8, S235, S235JR, P235GH,SS400,37.2
 Stainless Steel 304/L,316/L,321,310S,347H,1.4301, 1.4404
 ASTM A234 WP1/5/9/11/12/22/91
 Duplex stainless steel: UNS31803, SAF2205, UNS32205, UNS31500
 Coating:  Rust-proof oil, cold  and hot galvanize
 Packing  sea worthy plywooden case, wooden pallet

   Introduction

FORGED FLANGE

1) ANSI B16.5, ASME B16.47 FLANGE
Size range: 1/2" to 80"  DN15 to DN2000
Design: welding neck, slip on, blind, socket welding, threaded, lap-joint
Pressure: 150#, 300#, 600#,900#,1500#, 2500#
Wall thickness for welding neck flange: STD, SCH40, SCH80, SCH160. SCHXXS
Material: carbon steel A105, stainless steel  304/304L, 316/316L
Coating: black paint, yellow transparent paint, cold and hot dip galvanize
Package: seaworthy plywooden case, wooden pallet
2) EN1092-1 FLANGE
Size range: DN15 to DN2000
Design: type01 plate flange, type02 loose flange, type05 blind flange, type11 welding necking
             type12 slip on flange, type 13 threaded flange
Pressure: PN6, PN10, PN16, PN25, PN40, PN64, PN100
Material: carbon steel C22.8, S235, S235JR, P235GH, stainless steel: 304/304L, 316/316L
Coating: black paint, yellow transparent paint, cold and hot dip galvanize
Package: sea worthy plywooden case, wooden pallet
3) DIN FLANGE
Size range: DN15 to DN2000
Design: slip on flange DIN2573,2576,2502,2503, 2543,2545
             welding neck falnge DIN2631, 2632,2633,2634,2635
              blind flange DIN 2527 PN6, PN10, PN16, PN25, PN40
              threaded falnge DIN2565,2566,2567,2567
              loose flange DIN 2641,2642,2656,2673
Material: carbon steel ST37.2, stainless steel 1.4301, 1.4404
4) GOST FLANGE
Size range: DN15 to DN 2000
Design : plate falnge 12820-80, welding neck flange 12821-80
Pressure: PN6, PN10, PN16, PN25, PN40
Material: carbon steel CT-20, stainless steel 304/304L, 316/316L
Coating: rust-proof oil, cold and hot galvanize
Package: sea worthy plywooden case, wooden pallet
5) JIS B2220 FALNGE
Size ragne : 15A to 2000A
Design: SOP, BIND, SOH,
Puressure: 1K, 2K, 5K, 10K, 16K, 20K, 30K, 40K
Material: carbon steel SS400, stainless  steel SUS304, SUS316
Coating : rust-proof oil, cold  and hot galvanize

Packing: sea worthy plywooden case, wooden pallet


BLIND FLANGES

Blind flanges are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for blind flanges, the standard height is 1/16" for blind flanges under 400#. For blind flanges of 400# and up, the standard blind flange raised face height is 1/4".

Material: Carbon, Alloy and Stainless Steel

Standards: ASTM A105, ASTM A182

Sizes: 1/2'' to 24'', Customized up to 48''

Thickness: Schedule 10(S) to SCH 160

Pressure Ratings: Class 150 to 2500

Face Type: RF, RTJ


SLIP-ON FLANGES

Slip on pipe flanges are typically provided with a raised or flat face. When a raised face is necessary for slip on pipe flanges, the standard height is 1/16" for slip on pipe flanges under 400#. For slip on pipe flanges of 400# and up, the standard slip on pipe flange raised face height is 1/4".

Standard: ASTM A105, ASTM A182

Material: Carbon Steel, Alloy Steel, Stainless Steel

Size: 1/2'' to 24'', customized up to 60''

Pressure Ratings: Class 150 to Class 2500

Face Type: RF, RTJ


WELD NECK FLANGES

Weld neck pipe flanges are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for weld neck pipe flanges, the standard height is 1/16" for weld neck pipe flanges under 400#. For weld neck pipe flanges of 400# and up, the standard weld neck pipe flange raised face height is 1/4".

Material: Carbon, Alloy and Stainless Steel

Standards: ASTM A105, ASTM A182

Sizes: 1/2'' to 24'', Customized up to 48''

Thickness: Schedule 10(S) to SCH 160

Pressure Ratings: Class 150 to 2500

Face Type: RF, RTJ


LAP JOINT FLANGES

Slip on Pipe flanges with a hub have published specifications that range from 1/2" thru 24". Sizes above 24" are produced as lap joints to slip on dimensions. Coastal Flange provides Lap Joint pipe flanges in all material grades, specifications and sizes.

Carbon steel: ASTM A105, A350 LF2

Stainless steel: A182 F304/F304L/F316/F316L/F321

Alloy steel: ASTM A182, GR F1, F11, F22, F5, F9, F91

Outer Diameters: 1/2'' to 24''

Wall Thickness Schedule: SCH 10, SCH 40, SCH 160


THREADED FLANGES

Threaded pipe flanges are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for threaded pipe flanges, the standard height is 1/16" for threaded pipe flanges under 400#. For threaded pipe flanges of 400# and up, the standard threaded pipe flange raised face height is 1/4".

Standard: ASTM A105, ASTM A182

Material: Carbon Steel, Stainless Steel, Alloy Steel

Size Range: 1/2'', 1'', 2'', 3'', 4'' to 24''

Pressure Class: Class 150 to 2500

Face: Raised face (RF), Ring type joint (RTJ)


SOCKET WELD FLANGES

Socket Weld pipe flanges are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for socket weld pipe flanges, the standard height is 1/16" for socket weld pipe flanges under 400#. For socket weld pipe flanges of 400# and up, the standard socket weld pipe flange raised face height is 1/4".

Standard: 

Carbon steel ASTM A105, ASTM A350 LF1/2, ASTM A181

Alloy steel ASTM A182 F5, F9, F11, F22, F91

Stainless steel ASTM A182 F304/L, F316/L

Outer Diameters: 1/2 inch to 24 inch, up to 2500#

Special made: 24'' to 60'', up to 900#

Wall Thickness: Schedule 40 to 160

Pressure Ratings: Class 150 to Class 2500

Face Type: RF, RTJ


  Specification

BLIND FLANGES

Blind flanges are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for blind flanges, the standard height is 1/16" for blind flanges under 400#. For blind flanges of 400# and up, the standard blind flange raised face height is 1/4".

Material: Carbon, Alloy and Stainless Steel

Standards: ASTM A105, ASTM A182

Sizes: 1/2'' to 24'', Customized up to 48''

Thickness: Schedule 10(S) to SCH 160

Pressure Ratings: Class 150 to 2500

Face Type: RF, RTJ

SLIP-ON FLANGES

Slip on pipe flanges are typically provided with a raised or flat face. When a raised face is necessary for slip on pipe flanges, the standard height is 1/16" for slip on pipe flanges under 400#. For slip on pipe flanges of 400# and up, the standard slip on pipe flange raised face height is 1/4".

Standard: ASTM A105, ASTM A182

Material: Carbon Steel, Alloy Steel, Stainless Steel

Size: 1/2'' to 24'', customized up to 60''

Pressure Ratings: Class 150 to Class 2500

Face Type: RF, RTJ

WELD NECK FLANGES

Weld neck pipe flanges are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for weld neck pipe flanges, the standard height is 1/16" for weld neck pipe flanges under 400#. For weld neck pipe flanges of 400# and up, the standard weld neck pipe flange raised face height is 1/4".

Material: Carbon, Alloy and Stainless Steel

Standards: ASTM A105, ASTM A182

Sizes: 1/2'' to 24'', Customized up to 48''

Thickness: Schedule 10(S) to SCH 160

Pressure Ratings: Class 150 to 2500

Face Type: RF, RTJ

LAP JOINT FLANGES

Slip on Pipe flanges with a hub have published specifications that range from 1/2" thru 24". Sizes above 24" are produced as lap joints to slip on dimensions. Coastal Flange provides Lap Joint pipe flanges in all material grades, specifications and sizes.

Carbon steel: ASTM A105, A350 LF2

Stainless steel: A182 F304/F304L/F316/F316L/F321

Alloy steel: ASTM A182, GR F1, F11, F22, F5, F9, F91

Outer Diameters: 1/2'' to 24''

Wall Thickness Schedule: SCH 10, SCH 40, SCH 160

THREADED FLANGES

Threaded pipe flanges are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for threaded pipe flanges, the standard height is 1/16" for threaded pipe flanges under 400#. For threaded pipe flanges of 400# and up, the standard threaded pipe flange raised face height is 1/4".

Standard: ASTM A105, ASTM A182

Material: Carbon Steel, Stainless Steel, Alloy Steel

Size Range: 1/2'', 1'', 2'', 3'', 4'' to 24''

Pressure Class: Class 150 to 2500

Face: Raised face (RF), Ring type joint (RTJ)

SOCKET WELD FLANGES

Socket Weld pipe flanges are typically provided with a raised face, flat face, or RTJ facing. When a raised face is necessary for socket weld pipe flanges, the standard height is 1/16" for socket weld pipe flanges under 400#. For socket weld pipe flanges of 400# and up, the standard socket weld pipe flange raised face height is 1/4".

Standard: 

Carbon steel ASTM A105, ASTM A350 LF1/2, ASTM A181

Alloy steel ASTM A182 F5, F9, F11, F22, F91

Stainless steel ASTM A182 F304/L, F316/L

Outer Diameters: 1/2 inch to 24 inch, up to 2500#

Special made: 24'' to 60'', up to 900#

Wall Thickness: Schedule 40 to 160

Pressure Ratings: Class 150 to Class 2500

Face Type: RF, RTJ





Welding neck
1, Preferred for high-pressure, subzero or elevated temperature
2, Hub is tapered and bored to match pipe’s inside diameter so flow is not restricted, preventing turbulence and reducing erosion
3, Easily radiographed and provides excellent stress distribution
Slip-on
1, Not normally used in high-stress applications due to low hub and weld attachment
2, Silps over outside of pipe
3, Inside of flange welded at hub and end of pipe
Lap joint
1, Used where bolt alignment or access for cleaning is required
2, Similar to slip-on flange when used with lap joint stub end
3, Radius at intersection of flange face and bore to match lap joint stub end
Threaded
1, Used where welding would would be hazardous
2, Designed for low-pressure and non-cyclic applications
3, Bore is threaded to match pipe thread
4, Tapered to seal pipe and flanges
Socket welding
1, For small-diameter chemical processes, hydraulic and stream distribution lines
2, Similar to slip-on flange
3, Counter bore matches pipe bore, allowing unrestricted flow
4, Counter bore from hub side fits pipe’s outer diameter – can insert pipe in socket with fillet weld at hub
Blind
1, Used to close ends of piping
2, Has no bore
3, Permits access to sealed lines
Other flanges

Orifice, Expander, Reducing, Lightweight, Studding Outlets, Long Weld Necks,Metric, Navy Drawings, Customer Drawings


  Packing

Looking forward to your favourable inquiry!

  Manufacture Process


  Equipment




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