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Nominal Bore

Stainless Steel Nominal Bore Pipework – 304 & 316 Systems

Integraflow supplies complete nominal bore stainless steel pipework systems in 304 and 316/L grades, including pipe, fittings, flanges, valves, and supports in welded, seamless, threaded, and socket weld configurations, ideal for corrosive, and industrial environments across food, pharmaceutical, chemical, and mechanical sectors.

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Nominal Bore

DN65 (2.1/2" NB) NPT SCH80 PIPE NIPPLE T.B.E (4" LONG) SS 316
Thread: 2.1/2" NPT
Suits an outside diameter (OD) of: 73mm
Material: Forged Stainless Steel
Grade: 304
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Pipe Nipple, TBE, , Stainless Steel
£ 377.44 377.44 GBP
DN65 (2.1/2" NB) PN10 / PN16 RF BLIND FLANGE SS 304
Flange OD (D): 185mm
Drilling (No. x Bolt Hole x L): 8 x M16 x 18mm
Pitch circle diameter (K): 145mm
Flange thickness (C1): 20mm
Raised face diameter (D1): 110mm
Raised face height (F1): 3mm
Material: 304
Rating: PN16
Type: Blind flange (EN1092-1 Type 05)

Standards: EN1092-1
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Blank Flange, Blind, Stainless Steel, Stainless Steel, Raised Faced, RF Blind

Part of our Flanges and Flanged Connections Range
£ 120.61 120.61 GBP
DN65 (2.1/2" NB) PN10 / PN16 RF BLIND FLANGE SS 316
Flange OD (D): 185mm
Drilling (No. x Bolt Hole x L): 8 x M16 x 18mm
Pitch circle diameter (K): 145mm
Flange thickness (C1): 20mm
Raised face diameter (D1): 110mm
Raised face height (F1): 3mm
Material: 316
Rating: PN16
Type: Blind flange (EN1092-1 Type 05)

Standards: EN1092-1
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Blank Flange, Blind, Stainless Steel, Stainless Steel, Raised Faced, RF Blind

Part of our Flanges and Flanged Connections Range
£ 178.29 178.29 GBP
DN65 (2.1/2" NB) PN16 (8 HOLE) RF SLIP ON PLATE FLANGE SS 304
Suits an outside diameter (OD) of: 73/76.2mm
Material: Stainless Steel
Grade: 304
Standards: EN1092-1
Flange Face: Raised
Bolt Holes: 8 off to suit M16 Bolts
PCD: 145mm
Flange Diameter: 185mm
Flange Thickness: 20mm
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology:
Slip on, Weld on, Plate Flange, RFSO, Stainless Steel, Steel

Part of our Flanges and Flanged Connections Range
£ 89.46 89.46 GBP
DN65 (2.1/2" NB) PN16 (8 HOLE) RF SLIP ON PLATE FLANGE SS 316
Suits an outside diameter (OD) of: 73/76.2mm
Material: Stainless Steel
Grade: 316
Standards: EN1092-1
Flange Face: Raised
Bolt Holes: 8 off to suit M16 Bolts
PCD: 145mm
Flange Diameter: 185mm
Flange Thickness: 20mm
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology:
Slip on, Weld on, Plate Flange, RFSO, Stainless Steel, Steel

Part of our Flanges and Flanged Connections Range
£ 98.21 98.21 GBP
DN65 (2.1/2" NB) PN16 FLANGED 2PC LEVER OP. BALL VALVE LEVER OP SS 316
Flanged both ends: 2.1/2" PN16
Suits an outside diameter (OD) of: 73mm
PCD: 145mm Ø (PN16)
Face to face: 170mm
Construction: 2 Piece
Body Material: CF8/CF8M (316) Stainless
Bore: Full Bore
Internals: PTFE Seals
Investment Casting
Blowout proof stem

Part of our Isolation and Valves Range

Part of our Flanges and Flanged Connections Range
£ 1,452.71 1452.71 GBP
DN65 (2.1/2" NB) PN6 RF BLIND FLANGE SS 304
Flange overall diameter: 160mm (D)
PCD: 130mm (K)
Bolt Holes: 4 off 14mm diameter (L)
Flange Thickness: 16mm (C4)
Diameter of Raised Face (RF): 110mm (D1)
Height of Raised Face: 3mm (F1)
Material: Stainless Steel
Grade: 304
Standards: EN1092-1
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Blank Flange, Blind, Stainless Steel, Stainless Steel, Raised Faced, RF Blind

Part of our Flanges and Flanged Connections Range
£ 73.15 73.15 GBP
DN65 (2.1/2" NB) PN6 RF BLIND FLANGE SS 316
Flange overall diameter: 160mm (D)
PCD: 130mm (K)
Bolt Holes: 4 off 14mm diameter (L)
Flange Thickness: 16mm (C4)
Diameter of Raised Face (RF): 110mm (D1)
Height of Raised Face: 3mm (F1)
Material: Stainless Steel
Grade: 316
Standards: EN1092-1
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Blank Flange, Blind, Stainless Steel, Stainless Steel, Raised Faced, RF Blind

Part of our Flanges and Flanged Connections Range
£ 107.45 107.45 GBP
DN65 (2.1/2" NB) PN6 RF SLIP ON PLATE FLANGE SS 304
Flange inside diameter of: 77.5mm (B1)
Flange overall diameter: 160mm (D)
PCD: 130mm (K)
Bolt Holes: 4 off 14mm diameter (L)
Flange Thickness: 16mm (C1)
Diameter of Raised Face (RF): 110mm (D1)
Height of raised face: 3mm (F1)
Material: Stainless Steel
Grade: 304
Standards: EN1092-1
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Slip on Flange, Weld on, Stainless Steel, Steel, Raised Faced, RFSO

Part of our Flanges and Flanged Connections Range
Contact us for pricing 0.0 GBP
DN65 (2.1/2" NB) PN6 RF SLIP ON PLATE FLANGE SS 316
Flange inside diameter of: 77.5mm (B1)
Flange overall diameter: 160mm (D)
PCD: 130mm (K)
Bolt Holes: 4 off 14mm diameter (L)
Flange Thickness: 16mm (C1)
Diameter of Raised Face (RF): 110mm (D1)
Height of raised face: 3mm (F1)
Material: Stainless Steel
Grade: 316
Standards: EN1092-1
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Slip on Flange, Weld on, Stainless Steel, Steel, Raised Faced, RFSO

Part of our Flanges and Flanged Connections Range
Contact us for pricing 0.0 GBP
DN65 (2.1/2" NB) SCHEDULE 10S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 177.8mm
Flange thickness (C): 22.3mm
Hub length (X): 90.4mm
Neck height (A): 73.1mm
Pitch circle diameter (K): 139.7mm
Hub base diameter (Y): 69.8mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 104.6mm
Number of bolt holes: 4
Material: 304 Stainless Steel
Rating: ASA 150
Type: Weld Neck Flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
WN Flange, Welding Neck, ASA150, Stainless Steel, RF

Part of our Flanges and Flanged Connections Range
£ 262.64 262.64 GBP
DN65 (2.1/2" NB) SCHEDULE 10S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 177.8mm
Flange thickness (C): 22.3mm
Hub length (X): 90.4mm
Neck height (A): 73.1mm
Pitch circle diameter (K): 139.7mm
Hub base diameter (Y): 69.8mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 104.6mm
Number of bolt holes: 4
Material: 316 Stainless Steel
Rating: ASA 150
Type: Weld Neck Flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
WN Flange, Welding Neck, ASA150, Stainless Steel, RF

Part of our Flanges and Flanged Connections Range
£ 332.15 332.15 GBP
DN65 (2.1/2" NB) SCHEDULE 10s STAINLESS SEAMLESS PIPE 304
Outside Diameter (OD): 73mm
Wall Thickness (WT): 3.05mm (Sch10)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 5.34kg
Construction: Seamless
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.

Part of our Stainless Pipes and Tubes Range
Contact us for pricing 0.0 GBP
DN65 (2.1/2" NB) SCHEDULE 10s STAINLESS SEAMLESS PIPE 316
Outside Diameter (OD): 73mm
Wall Thickness (WT): 3.05mm (Sch10)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 5.34kg
Construction: Seamless
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.

Part of our Stainless Pipes and Tubes Range
Contact us for pricing 0.0 GBP
DN65 (2.1/2" NB) SCHEDULE 10s STAINLESS WELDED PIPE 304
Outside Diameter (OD): 73mm
Wall Thickness (WT): 3.05mm (Sch10)
Material: Stainless
Grade: 304
Standards: ASTM A312
Random Length: 6 meter Random
Weight Per Meter: 5.34kg
Construction: Welded
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.

Part of our Stainless Pipes and Tubes Range
£ 134.26 134.26 GBP
DN65 (2.1/2" NB) SCHEDULE 10s STAINLESS WELDED PIPE 316
Outside Diameter (OD): 73mm
Wall Thickness (WT): 3.05mm (Sch10)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 5.34kg
Construction: Welded
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.

Part of our Stainless Pipes and Tubes Range
£ 216.09 216.09 GBP
DN65 (2.1/2" NB) SCHEDULE 40S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 177.8mm
Flange thickness (C): 22.3mm
Hub length (X): 90.4mm
Neck height (A): 73.1mm
Pitch circle diameter (K): 139.7mm
Hub base diameter (Y): 69.8mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 104.6mm
Number of bolt holes: 4
Material: 304 Stainless Steel
Rating: ASA 150
Type: Weld Neck Flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
WN Flange, Welding Neck, ASA150, Stainless Steel, RF

Part of our Flanges and Flanged Connections Range
£ 278.25 278.25 GBP
DN65 (2.1/2" NB) SCHEDULE 40S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 177.8mm
Flange thickness (C): 22.3mm
Hub length (X): 90.4mm
Neck height (A): 73.1mm
Pitch circle diameter (K): 139.7mm
Hub base diameter (Y): 69.8mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 104.6mm
Number of bolt holes: 4
Material: 316 Stainless Steel
Rating: ASA 150
Type: Weld Neck Flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
WN Flange, Welding Neck, ASA150, Stainless Steel, RF

Part of our Flanges and Flanged Connections Range
£ 279.16 279.16 GBP
DN65 (2.1/2" NB) SCHEDULE 40s STAINLESS SEAMLESS PIPE 304
Outside Diameter (OD): 73mm
Wall Thickness (WT): 5.16mm (Sch40)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 8.77
Construction: Seamless
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.



Part of our Stainless Pipes and Tubes Range
Contact us for pricing 0.0 GBP
DN65 (2.1/2" NB) SCHEDULE 40s STAINLESS SEAMLESS PIPE 316
Outside Diameter (OD): 73mm
Wall Thickness (WT): 5.16mm
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 8.77kg
Construction: Seamless
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.

Part of our Stainless Pipes and Tubes Range
£ 462.77 462.77 GBP
DN65 (2.1/2" NB) SCHEDULE 40s STAINLESS WELDED PIPE 304
Outside Diameter (OD): 73mm
Wall Thickness (WT): 5.16mm (Sch40)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 8.77kg
Construction: Welded
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.

Part of our Stainless Pipes and Tubes Range
£ 218.89 218.89 GBP
DN65 (2.1/2" NB) SCHEDULE 40s STAINLESS WELDED PIPE 316
Outside Diameter (OD): 73mm
Wall Thickness (WT): 5.16mm (Sch40)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 8.77
Construction: Welded
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.



Part of our Stainless Pipes and Tubes Range
£ 354.76 354.76 GBP
DN65 (2.1/2" NB) SCHEDULE 80S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 177.8mm
Flange thickness (C): 22.3mm
Hub length (X): 90.4mm
Neck height (A): 73.1mm
Pitch circle diameter (K): 139.7mm
Hub base diameter (Y): 69.8mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 104.6mm
Number of bolt holes: 4
Material: Stainless Steel 304
Rating: ASA 150
Type: Weld Neck Flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
WN Flange, Welding Neck, ASA150, Stainless Steel, RF

Part of our Flanges and Flanged Connections Range
Contact us for pricing 0.0 GBP
DN65 (2.1/2" NB) SCHEDULE 80S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 177.8mm
Flange thickness (C): 22.3mm
Hub length (X): 90.4mm
Neck height (A): 73.1mm
Pitch circle diameter (K): 139.7mm
Hub base diameter (Y): 69.8mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 104.6mm
Number of bolt holes: 4
Material: Stainless Steel 316
Rating: ASA 150
Type: Weld Neck Flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
WN Flange, Welding Neck, ASA150, Stainless Steel, RF

Part of our Flanges and Flanged Connections Range
Contact us for pricing 0.0 GBP
DN65 (2.1/2" NB) SCHEDULE 80s STAINLESS SEAMLESS PIPE 304
Outside Diameter (OD): 73mm
Wall Thickness (WT): 7.01mm (Sch80)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 11.58kg
Construction: Seamless
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.

Part of our Stainless Pipes and Tubes Range
Contact us for pricing 0.0 GBP
DN65 (2.1/2" NB) SCHEDULE 80s STAINLESS SEAMLESS PIPE 316
Outside Diameter (OD): 73mm
Wall Thickness (WT): 7.01mm (Sch80)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 11.58kg
Construction: Seamless
Certification Available: 3.1 BS EN 10204 Material Certification

Note: Sold online only in 1 meter increments. Please get in touch for specific cutting requirements.

Part of our Stainless Pipes and Tubes Range
£ 687.05 687.05 GBP
DN65 (2.1/2" NB) SOCKET WELD 3PC FB BALL VALVE LEVER OP. SS 316
Threaded: 2.1/2" NB Socket Weld (SW)
Suits an outside diameter (OD) of: 73mm
Construction: 3 Piece
Body Material: 316 Stainless
Connection: Socket Weld
Bore: Full Bore
Internals: PTFE Seals

Applications:
Water, Oil & Gas* - Heating and Plumbing, HVAC, Gasses* and Compressed Air, Agricultural Irrigation, Fuel and Oils, Cooling, Marine, Fire Protection Sprinkler Systems, Food & Beverage.

Alternative terminology:
Isolation Valve, Lever Valve, Handle Valve, Shut off Valve, Quarter 1/4 Turn

Part of our Isolation and Valves Range
£ 660.80 660.8 GBP
DN65 (2.1/2" NB) SW 150# ELBOW 45° SS 316
Thread: 2.1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 73mm
Material: Stainless
Grade: 316
Elbow Angle: 45° (Degree)

Standards:
Nominal Bore, Socket Weld, Elbow, 45°, 45 Deg, Weldable, Low Pressure, 150 psi
£ 109.69 109.69 GBP
DN65 (2.1/2" NB) SW 150# ELBOW 90° SS 316
Thread: 2.1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 73mm
Material: Stainless
Grade: 316
Elbow Angle: 90° (Degree)

Standards:
Nominal Bore, Socket Weld, Elbow, 90°, 90 Deg, Weldable, Low Pressure, 150 psi
£ 133.91 133.91 GBP
DN65 (2.1/2" NB) SW 150# (FXF) CONE SEAT UNION SS 316
Thread: 2.1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 73mm
Material: Stainless
Grade: 316
£ 197.05 197.05 GBP
DN65 (2.1/2" NB) SW 150# EQUAL FULL SOCKET SS 316
Connection: 2.1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 73mm
Material: Stainless
Grade: 316
£ 71.05 71.05 GBP
DN65 (2.1/2" NB) SW 150# ROUND CAP SS 316
Thread: 2.1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 73mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, SW (Socket Weld), Weldable, Low Pressure, 150 psi

Alternative terminology:
SW Cap, Termination, Blanking Cap, Cap End
£ 69.44 69.44 GBP
DN65 (2.1/2" NB) SW 3000# EQUAL COUPLING SS 316
Connection: 2.1/2" SW
Suits an outside diameter (OD) of: 73mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Coupling, Socket, Straight, Connector, Stainless Steel
£ 448.49 448.49 GBP
DN65 (2.1/2" NB) U-BOLT C.W NUTS SS 304 (A2)
Suits an outside diameter (OD) of: 76.2mm
Material: Stainless Steel 304 (A2)
Thread: M10
Comes with 2x Nuts
Contact us for pricing 0.0 GBP
DN65 (2.1/2" NB) U-BOLT C.W NUTS SS 316 (A4)
Suits an outside diameter (OD) of: 76.2mm
Material: Stainless Steel 316 (A4)
Thread: M10
Comes with 2x Nuts
Contact us for pricing 0.0 GBP
DN65 (2.1/2" NB) UN-BOSSED SPLIT BAND HANGER SS 304
Suits an outside diameter (OD) of: 76.2mm
Band width: 40mm
Band thickness: 3mm
Bolt Size: M10
Material: Stainless Steel
Grade: 304
Contact us for pricing 0.0 GBP
DN65 (2½" NB) BSP 150# EQUAL TEE SS 316
Thread: 2½" BSPP Female x Female x Female
Suits an outside diameter of 76.1mm

Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Equal, Tee, Tee Piece, Screwed, Low Pressure, 150 psi
£ 125.02 125.02 GBP
DN65 (2½" NB) BSPT 3000# FXF ELBOW 90° SS 316
Thread: 2½" BSPT Female
Suits an outside diameter (OD) of: 73mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Elbow, FXF, 90°, 90 Degree, Stainless Steel
Contact us for pricing 0.0 GBP
DN65 (2½" NB) NPT 150# EQUAL TEE SS 316
Thread: 2½" NPT Female x Female x Female
Suits an outside diameter of 76.1mm

Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Equal, Tee, Tee Piece, Screwed, Low Pressure, 150 psi
£ 202.93 202.93 GBP
DN65 (2½" NB) SCHEDULE 10S A403 SEAMLESS EQUAL TEE SS 304
Outside Diameter (OD): 73.0mm
Wall Thickness: 5.16mm
Centre to End: 76.2mm
Schedule: 10S
Weight: 2.36kg

Material: Stainless Steel
Material Grade: ASTM A403

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Equal Tee, LR, Welding Tee, Weldable
Contact us for pricing 0.0 GBP