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Flange&Pipe Fittings
Flange
OD: dn15- dn2000 (1/2''- 80'')
Type: welding neck, slip on, blind, socket welding, threaded, lap-joint
Pressure: 150#, 300#, 600#,900#,1500#, 2500#
Coating: rust-proof oil, cold and hot galvanize
Material: carbon steel a105, c22.8, s235, s235jr, p235gh,ss400,37.2
Standard
Specification
Steel flanges provide an easy access for cleaning, inspection or modification. They usually come in round shapes but they can also come in square and rectangular forms. The flanges are joined to each other by bolting and joined to the piping system by welding or threading and are designed to the specific pressure ratings; 150lb, 300lb, 400lb, 600lb, 900lb, 1500lb and 2500lb.
A flange can be a plate for covering or closing the end of a pipe. This is called a blind flange. Thus, flanges are considered to be internal components which are used to support mechanical parts.
Size: |
OD: DN15- DN2000 (1/2''- 80'') |
Type: welding neck, slip on, blind, socket welding, threaded, lap-joint |
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Pressure: 150#, 300#, 600#,900#,1500#, 2500# |
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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 |
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ASTM A234 WP1/5/9/11/12/22/91 |
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Duplex stainless steel: UNS31803, SAF2205, UNS32205, UNS31500 |
Coating: |
Rust-proof oil, cold and hot galvanize |
Packing |
sea worthy plywooden case, wooden pallet |
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 |
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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 |
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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 |
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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 |
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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
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