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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

DN15 (1/2" NB) NPT 3000# FXF UNION SS 316
Thread: 1/2" NPT Female
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Union, FXF, Stainless Steel
£ 98.98 98.98 GBP
DN15 (1/2" NB) NPT 3000# HALF COUPLING SS 316
Thread: 1/2" NPT
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Half Coupling, Half Socket, Straight, Connector, Stainless Steel
£ 19.39 19.39 GBP
DN15 (1/2" NB) NPT 3000# HEX HEAD PLUG END SS 316
Thread: 1/2" NPT Male
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Hexagon Head Plug, Blanking, Termination, Stainless Steel
£ 17.08 17.08 GBP
DN15 (1/2" NB) NPT 3000# HEXAGON NIPPLE SS 316
Thread: 1/2" NPT Male x Male
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Equal Nipple, Straight, Connector, Stainless Steel
£ 33.60 33.6 GBP
DN15 (1/2" NB) NPT 3000# ROUND CAP END SS 316
Thread: 1/2" NPT Female
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Round Cap End, Blanking, Termination, Stainless Steel
£ 22.19 22.19 GBP
DN15 (1/2" NB) NPT 3PC (FXF) FB BALL VALVE LEVER OP. SS 316
Threaded: 1/2" NPT Female
Suits an outside diameter (OD) of: 21.3mm
Construction: 3 Piece
Body Material: 316 Stainless
Connection: NPT Female
Bore: Full Bore
Internals: PTFE Seals

Alternative terminology:
Isolation Valve, Lever Valve, Handle Valve, Shut off Valve, Quarter 1/4 Turn
£ 55.79 55.79 GBP
DN15 (1/2" NB) NPT SCH80 PIPE NIPPLE T.B.E (2" LONG) SS 316
Thread: 1/2" NPT
Suits an outside diameter (OD) of: 21.3mm
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
£ 33.60 33.6 GBP
DN15 (1/2" NB) NPT SCH80 PIPE NIPPLE T.B.E (3" LONG) SS 316
Thread: 1/2" NPT
Suits an outside diameter (OD) of: 21.3mm
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
£ 40.60 40.6 GBP
DN15 (1/2" NB) NPT SCH80 PIPE NIPPLE T.B.E (4" LONG) SS 316
Thread: 1/2" NPT
Suits an outside diameter (OD) of: 21.3mm
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
£ 84.00 84.0 GBP
DN15 (1/2" NB) PN10/PN16/PN25/PN40 RF BSPP THREADED FLANGE SS 304
Flange outside diameter: 95mm (D)
Flange thickness: 16mm (C2)
Pitch Circle Diameter (PCD): 65mm (K)
Flange hub height: 22mm (H1)
Raised Face Height: 2mm (f1)
BSPP Thread: 1/2"
Bolt Holes: 4 off M12 bolts
Material: Stainless Steel
Grade: 304

Standards: EN 1092-1
Pressure Rating: PN16
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Threaded Flange, Screwed Flange, BSPP, Stainless Steel, SS Steel, Bossed, PN16
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) PN10/PN16/PN25/PN40 RF BSPP THREADED FLANGE SS 316
Flange outside diameter: 95mm (D)
Flange thickness: 16mm (C2)
Pitch Circle Diameter (PCD): 65mm (K)
Flange hub height: 22mm (H1)
Raised Face Height: 2mm (f1)
BSPP Thread: 1/2"
Bolt Holes: 4 off M12 bolts
Material: Stainless Steel
Grade: 316

Standards: EN 1092-1
Pressure Rating: PN16
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Threaded Flange, Screwed Flange, BSPP, Stainless Steel, SS Steel, Bossed, PN16
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) PN16/40 FLANGED 2PC LEVER OP. BALL VALVE LEVER OP SS 316
Flanged both ends: 1/2" PN16
Suits an outside diameter (OD) of: 21.3mm
PCD: 65mm Ø (PN10, PN16, PN40)
Face to face: 115mm
Construction: 2 Piece
Body Material: CF8/CF8M (316) Stainless
Bore: Full Bore
Internals: PTFE Seals
Investment Casting
Blowout proof stem
£ 302.05 302.05 GBP
DN15 (1/2" NB) PN6 RF BLIND FLANGE SS 304
Flange overall diameter: 80mm (D)
PCD: 55mm (K)
Bolt Holes: 4 off 11mm diameter (L)
Flange Thickness: 12mm (C4)
Diameter of Raised Face (RF): 40mm (D1)
Height of Raised Face: 2mm (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
£ 28.35 28.35 GBP
DN15 (1/2" NB) PN6 RF BLIND FLANGE SS 316
Flange overall diameter: 80mm (D)
PCD: 55mm (K)
Bolt Holes: 4 off 11mm diameter (L)
Flange Thickness: 12mm (C4)
Diameter of Raised Face (RF): 40mm (D1)
Height of Raised Face: 2mm (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
£ 23.87 23.87 GBP
DN15 (1/2" NB) PN6 RF BSPP THREADED FLANGE SS 304
Flange outside diameter: 80mm (D)
Flange thickness: 12mm (C2)
Pitch Circle Diameter (PCD): 55mm (K)
Flange hub height: 20mm (H1)
Raised Face Height: 2mm (f1)
BSPP Thread: 1/2"
Bolt Holes: 4 off M10 bolts
Material: Stainless Steel
Grade: 304

Standards: EN 1092-1
Pressure Rating: PN6
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Threaded Flange, Screwed Flange, BSPP, Stainless Steel, SS Steel, Bossed, PN6
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) PN6 RF BSPP THREADED FLANGE SS 316
Flange outside diameter: 80mm (D)
Flange thickness: 12mm (C2)
Pitch Circle Diameter (PCD): 55mm (K)
Flange hub height: 20mm (H1)
Raised Face Height: 2mm (f1)
BSPP Thread: 1/2"
Bolt Holes: 4 off M10 bolts
Material: Stainless Steel
Grade: 316

Standards: EN 1092-1
Pressure Rating: PN6
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Threaded Flange, Screwed Flange, BSPP, Stainless Steel, SS Steel, Bossed, PN6
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) PN6 RF SLIP ON PLATE FLANGE SS 304
Flange inside diameter of: 22.0mm (B1)
Flange overall diameter: 80mm (D)
PCD: 55mm (K)
Bolt Holes: 4 off 11mm diameter (L)
Flange Thickness: 12mm (C1)
Diameter of Raised Face (RF): 40mm (D1)
Height of raised face: 2mm (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
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) PN6 RF SLIP ON PLATE FLANGE SS 316
Flange inside diameter of: 22.0mm (B1)
Flange overall diameter: 80mm (D)
PCD: 55mm (K)
Bolt Holes: 4 off 11mm diameter (L)
Flange Thickness: 12mm (C1)
Diameter of Raised Face (RF): 40mm (D1)
Height of raised face: 2mm (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
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) SCHEDULE 10S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 88.9mm
Flange thickness (C): 11.1mm
Hub length (X): 30.2mm
Neck height (A): 21.3mm
Pitch circle diameter (K): 60.4mm
Hub base diameter (Y): 47.7mm
Raised face height (RF): 15.7mm
Raised face diameter (R): 35.0mm
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
£ 38.22 38.22 GBP
DN15 (1/2" NB) SCHEDULE 10S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 88.9mm
Flange thickness (C): 11.1mm
Hub length (X): 30.2mm
Neck height (A): 21.3mm
Pitch circle diameter (K): 60.4mm
Hub base diameter (Y): 47.7mm
Raised face height (RF): 15.7mm
Raised face diameter (R): 35.0mm
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
£ 44.03 44.03 GBP
DN15 (1/2" NB) SCHEDULE 10s STAINLESS SEAMLESS PIPE 304
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 2.11mm (Sch10)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 1.02
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.

Contact us for pricing 0.0 GBP
DN15 (1/2" NB) SCHEDULE 10s STAINLESS SEAMLESS PIPE 316
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 2.11mm (Sch10)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 1.02
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.

Contact us for pricing 0.0 GBP
DN15 (1/2" NB) SCHEDULE 10s STAINLESS WELDED PIPE 316
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 2.11mm (Sch10)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 1.02
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.

£ 44.38 44.38 GBP
DN15 (1/2" NB) SCHEDULE 40S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 88.9mm
Flange thickness (C): 11.1mm
Hub length (X): 30.2mm
Neck height (A): 21.3mm
Pitch circle diameter (K): 60.4mm
Hub base diameter (Y): 47.7mm
Raised face height (RF): 15.7mm
Raised face diameter (R): 35.0mm
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
£ 38.99 38.99 GBP
DN15 (1/2" NB) SCHEDULE 40S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 88.9mm
Flange thickness (C): 11.1mm
Hub length (X): 30.2mm
Neck height (A): 21.3mm
Pitch circle diameter (K): 60.4mm
Hub base diameter (Y): 47.7mm
Raised face height (RF): 15.7mm
Raised face diameter (R): 35.0mm
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
£ 36.05 36.05 GBP
DN15 (1/2" NB) SCHEDULE 40s STAINLESS SEAMLESS PIPE 304
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 2.77mm (Sch40)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 1.29
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.

Contact us for pricing 0.0 GBP
DN15 (1/2" NB) SCHEDULE 40s STAINLESS SEAMLESS PIPE 316
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 2.77mm
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 1.27kg
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.
£ 58.80 58.8 GBP
DN15 (1/2" NB) SCHEDULE 40s STAINLESS WELDED PIPE 304
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 2.77mm (Sch40)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 1.29kg
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.
£ 30.45 30.45 GBP
DN15 (1/2" NB) SCHEDULE 40s STAINLESS WELDED PIPE 316
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 2.77mm (Sch40)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 1.29
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.

£ 56.21 56.21 GBP
DN15 (1/2" NB) SCHEDULE 80S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 88.9mm
Flange thickness (C): 11.1mm
Hub length (X): 30.2mm
Neck height (A): 21.3mm
Pitch circle diameter (K): 60.4mm
Hub base diameter (Y): 47.7mm
Raised face height (RF): 15.7mm
Raised face diameter (R): 35.0mm
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
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) SCHEDULE 80S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 88.9mm
Flange thickness (C): 11.1mm
Hub length (X): 30.2mm
Neck height (A): 21.3mm
Pitch circle diameter (K): 60.4mm
Hub base diameter (Y): 47.7mm
Raised face height (RF): 15.7mm
Raised face diameter (R): 35.0mm
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
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) SCHEDULE 80s STAINLESS SEAMLESS PIPE 304
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 3.73mm (Sch80)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 1.62kg
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.
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) SCHEDULE 80s STAINLESS SEAMLESS PIPE 316
Outside Diameter (OD): 21.3mm
Wall Thickness (WT): 3.73mm (Sch80)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 1.62kg
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.
£ 95.76 95.76 GBP
DN15 (1/2" NB) SOCKET WELD 3000# FULL COUPLING SS 316
Both sides: 1/2" Socket Weld
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless 316

Standards:
Nominal Bore, Socket Weld, High Pressure, 3000 psi, 3000 lb, Class 3000, Forged Stainless, ANSI B16.11/BS3799

Alternative terminology:
Forged, Stainless, Socket Weld, Coupling, Socket, Straight, Equal.
£ 25.97 25.97 GBP
DN15 (1/2" NB) SOCKET WELD 3PC FB BALL VALVE LEVER OP. SS 316
Threaded: 1/2" NB Socket Weld (SW)
Suits an outside diameter (OD) of: 21.3mm
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
£ 54.04 54.04 GBP
DN15 (1/2" NB) SW 150# ELBOW 45° SS 316
Thread: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
Elbow Angle: 45° (Degree)

Standards:
Nominal Bore, Socket Weld, Elbow, 45°, 45 Deg, Weldable, Low Pressure, 150 psi
£ 12.74 12.74 GBP
DN15 (1/2" NB) SW 150# ELBOW 90° SS 316
Thread: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
Elbow Angle: 90° (Degree)

Standards:
Nominal Bore, Socket Weld, Elbow, 90°, 90 Deg, Weldable, Low Pressure, 150 psi
£ 11.34 11.34 GBP
DN15 (1/2" NB) SW 150# (FXF) CONE SEAT UNION SS 316
Thread: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
£ 22.33 22.33 GBP
DN15 (1/2" NB) SW 150# EQUAL FULL SOCKET SS 316
Connection: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
£ 10.36 10.36 GBP
DN15 (1/2" NB) SW 150# EQUAL TEE SS 316
Thread: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless Steel
Grade: 316
£ 15.40 15.4 GBP