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Stainless

Nominal Bore Stainless Steel Pipework – 304 & 316 Grades

Integraflow offers a complete range of nominal bore stainless steel pipework systems in 304 and 316/L grades, including pipe, fittings, flanges, valves, and supports in welded, seamless, and threaded configurations, designed for durability, corrosion resistance, and compatibility across industrial, hygienic, and mechanical applications.

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Stainless

DN40 (1.1/2" NB) NPT 150# HALF SOCKET SS 316
Thread: 1.1/2" NPT Female x Female
Suits an outside diameter (OD) of: 48.3mm
Material: Stainless
Grade: 316
£ 37.03 37.03 GBP
DN40 (1.1/2" NB) NPT 150# HEX CAP SS 316
Thread: 1.1/2" NPT Female
Suits an outside diameter (OD) of: 48.3mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi

Alternative terminology:
Female Cap, Termination, Blanking Cap, Cap End
£ 30.66 30.66 GBP
DN40 (1.1/2" NB) NPT 150# HEX HEAD PLUG SS 316
Thread: 1.1/2" NPT Male
Suits an outside diameter (OD) of: 48.3mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi

Alternative terminology:
Male Plug, Termination, Blanking Plug, Stop end
£ 25.90 25.9 GBP
DN40 (1.1/2" NB) NPT 150# ROUND CAP SS 316
Thread: 1.1/2" NPT Female
Suits an outside diameter (OD) of: 48.3mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi

Alternative terminology:
Female Cap, Termination, Blanking Cap, Cap End
£ 25.27 25.27 GBP
DN40 (1.1/2" NB) NPT 150# SQUARE HEAD PLUG SS 316
Thread: 1.1/2" NPT Male
Suits an outside diameter (OD) of: 48.3mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi

Alternative terminology:
Male Plug, Termination, Blanking Plug, Stop end
£ 16.45 16.45 GBP
DN40 (1.1/2" NB) NPT 3000# EQUAL COUPLING SS 316
Threaded: 1.1/2" NPT Female
Suits an outside diameter (OD) of: 48.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Full Sock, Equal Socket, Coupling, Stainless Steel
£ 168.84 168.84 GBP
DN40 (1.1/2" NB) NPT 3000# EQUAL TEE SS 316
Threaded: 1.1/2" NPT Female Female
Suits an outside diameter (OD) of: 48.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Full Sock, Equal Socket, Coupling, Stainless Steel
£ 405.16 405.16 GBP
DN40 (1.1/2" NB) NPT 3000# FXF UNION SS 316
Threaded: 1.1/2" NPT Female Female
Suits an outside diameter (OD) of: 48.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Full Sock, Equal Socket, Coupling, Stainless Steel
£ 307.09 307.09 GBP
DN40 (1.1/2" NB) NPT 3000# HALF COUPLING SS 316
Threaded: 1.1/2" NPT Female
Suits an outside diameter (OD) of: 48.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Full Sock, Equal Half Socket, Half Coupling, Stainless Steel
£ 122.64 122.64 GBP
DN40 (1.1/2" NB) NPT 3000# HEX HEAD PLUG END SS 316
Threaded: 1.1/2" NPT Male Male
Suits an outside diameter (OD) of: 48.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Full Sock, Equal Socket, Coupling, Stainless Steel
£ 79.59 79.59 GBP
DN40 (1.1/2" NB) NPT 3000# HEXAGON NIPPLE SS 316
Threaded: 1.1/2" NPT Male Female
Suits an outside diameter (OD) of: 48.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Full Sock, Equal Socket, Coupling, Stainless Steel
£ 209.58 209.58 GBP
DN40 (1.1/2" NB) NPT 3000# ROUND CAP END SS 316
Threaded: 1.1/2" NPT Female Female
Suits an outside diameter (OD) of: 48.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Full Sock, Equal Socket, Coupling, Stainless Steel
£ 110.88 110.88 GBP
DN40 (1.1/2" NB) NPT 3PC (FXF) FB BALL VALVE LEVER OP. SS 316
Threaded: 1.1/2" NPT Female
Suits an outside diameter (OD) of: 48.3mm
Construction: 3 Piece
Body Material: 316 Stainless
Connection: NPT Female
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
£ 207.13 207.13 GBP
DN40 (1.1/2" NB) NPT SCH80 PIPE NIPPLE T.B.E (2" LONG) SS 316
Threaded: 1.1/2" NPT Female
Suits an outside diameter (OD) of: 48.3mm
Material: Forged Stainless Steel
Grade: 304
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Full Sock, Equal TBE, Pipe Nipple, Stainless Steel
£ 209.58 209.58 GBP
DN40 (1.1/2" NB) NPT SCH80 PIPE NIPPLE T.B.E (3" LONG) SS 316
Threaded: 1.1/2" NPT Female
Suits an outside diameter (OD) of: 48.3mm
Material: Forged Stainless Steel
Grade: 304
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Full Sock, Equal TBE, Pipe Nipple, Stainless Steel
£ 216.58 216.58 GBP
DN40 (1.1/2" NB) NPT SCH80 PIPE NIPPLE T.B.E (4" LONG) SS 316
Threaded: 1.1/2" NPT Female
Suits an outside diameter (OD) of: 48.3mm
Material: Forged Stainless Steel
Grade: 304
Construction: Forged
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Full Sock, Equal TBE, Pipe Nipple, Stainless Steel
£ 223.58 223.58 GBP
DN40 (1.1/2" NB) PN16/40 FLANGED 2PC LEVER OP. BALL VALVE LEVER OP SS 316
Flanged both ends: 1.1/2" PN16
Suits an outside diameter (OD) of: 48.3mm
PCD: 110mm Ø (PN10, PN16, PN40)
Face to face: 140mm
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
£ 856.87 856.87 GBP
DN40 (1.1/2" NB) PN6 RF BLIND FLANGE SS 304
Flange overall diameter: 130mm (D)
PCD: 100mm (K)
Bolt Holes: 4 off 14mm diameter (L)
Flange Thickness: 16mm (C4)
Diameter of Raised Face (RF): 80mm (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
£ 65.38 65.38 GBP
DN40 (1.1/2" NB) PN6 RF BLIND FLANGE SS 316
Flange overall diameter: 130mm (D)
PCD: 100mm (K)
Bolt Holes: 4 off 14mm diameter (L)
Flange Thickness: 16mm (C4)
Diameter of Raised Face (RF): 80mm (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
£ 98.07 98.07 GBP
DN40 (1.1/2" NB) PN6 RF SLIP ON PLATE FLANGE SS 304
Flange inside diameter of: 49.5mm (B1)
Flange overall diameter: 130mm (D)
PCD: 100mm (K)
Bolt Holes: 4 off 14mm diameter (L)
Flange Thickness: 16mm (C1)
Diameter of Raised Face (RF): 80mm (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
DN40 (1.1/2" NB) PN6 RF SLIP ON PLATE FLANGE SS 316
Flange inside diameter of: 49.5mm (B1)
Flange overall diameter: 130mm (D)
PCD: 100mm (K)
Bolt Holes: 4 off 14mm diameter (L)
Flange Thickness: 16mm (C1)
Diameter of Raised Face (RF): 80mm (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
DN40 (1.1/2" NB) SCHEDULE 10S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 127.0mm
Flange thickness (C): 17.5mm
Hub length (X): 65.0mm
Neck height (A): 48.2mm
Pitch circle diameter (K): 98.5mm
Hub base diameter (Y): 61.9mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 73.1mm
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
£ 94.08 94.08 GBP
DN40 (1.1/2" NB) SCHEDULE 10S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 127.0mm
Flange thickness (C): 17.5mm
Hub length (X): 65.0mm
Neck height (A): 48.2mm
Pitch circle diameter (K): 98.5mm
Hub base diameter (Y): 61.9mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 73.1mm
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
£ 110.39 110.39 GBP
DN40 (1.1/2" NB) SCHEDULE 10s STAINLESS SEAMLESS PIPE 304
Outside Diameter (OD): 48.3mm
Wall Thickness (WT): 2.77mm (Sch10)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 3.68
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
DN40 (1.1/2" NB) SCHEDULE 10s STAINLESS SEAMLESS PIPE 316
Outside Diameter (OD): 48.3mm
Wall Thickness (WT): 2.77mm (Sch10)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 3.68
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
DN40 (1.1/2" NB) SCHEDULE 10s STAINLESS WELDED PIPE 304
Outside Diameter (OD): 48.3mm
Wall Thickness (WT): 2.77mm (Sch10)
Material: Stainless
Grade: 304
Standards: ASTM A312
Random Length: 6 meters
Weight Per Meter: 3.68
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
£ 67.55 67.55 GBP
DN40 (1.1/2" NB) SCHEDULE 10s STAINLESS WELDED PIPE 316
Outside Diameter (OD): 48.3mm
Wall Thickness (WT): 2.77mm (Sch10)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 3.68
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
£ 110.67 110.67 GBP
DN40 (1.1/2" NB) SCHEDULE 40S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 127.0mm
Flange thickness (C): 17.5mm
Hub length (X): 65.0mm
Neck height (A): 48.2mm
Pitch circle diameter (K): 98.5mm
Hub base diameter (Y): 61.9mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 73.1mm
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
£ 124.81 124.81 GBP
DN40 (1.1/2" NB) SCHEDULE 40S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 127.0mm
Flange thickness (C): 17.5mm
Hub length (X): 65.0mm
Neck height (A): 48.2mm
Pitch circle diameter (K): 98.5mm
Hub base diameter (Y): 61.9mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 73.1mm
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
£ 133.98 133.98 GBP
DN40 (1.1/2" NB) SCHEDULE 40s SEAMLESS ELBOW 90° SS 316
Outside Diameter (OD): 48.3mm
Wall Thickness (WT): 3.68mm
Material: Stainless
Grade: 316
Standards: ANSI B16.9, Schedule 40s
Radius Centre to Face: 57.1mm
Angle: 90 Degree
Ends: Buttweld
Construction: Seamless
Certification Available: 3.1 BS EN 10204 Material Certification

Applications:
Water, Oil & Gas / Petrochem, Steam, Fuels, Condensate, HVAC, Marine, Water & Waste Water, Mining, Construction, Power Generation (Energy), Waste to Energy (ERF)

Alternative terminology:
Butt Weld, Weld Bends, Weld Elbow, Long Rad, 90s
Contact us for pricing 0.0 GBP
DN40 (1.1/2" NB) SCHEDULE 40s STAINLESS SEAMLESS PIPE 304
Outside Diameter (OD): 48.3mm
Wall Thickness (WT): 3.68mm (Sch40)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 4.11
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
DN40 (1.1/2" NB) SCHEDULE 40s STAINLESS SEAMLESS PIPE 316
Outside Diameter (OD): 48.3mm
Wall Thickness (WT): 3.68mm
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 4.08kg
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
£ 185.15 185.15 GBP
DN40 (1.1/2" NB) SCHEDULE 40s STAINLESS WELDED PIPE 304
Outside Diameter (OD): 48.3mm
Wall Thickness (WT): 3.68mm (Sch40)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 4.11kg
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
£ 88.69 88.69 GBP
DN40 (1.1/2" NB) SCHEDULE 40s STAINLESS WELDED PIPE 316
Outside Diameter (OD): 48.3mm
Wall Thickness (WT): 3.68mm (Sch40)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 4.11
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
£ 165.97 165.97 GBP
DN40 (1.1/2" NB) SCHEDULE 40s WELDED ELBOW 90° SS 316
Outside Diameter (OD): 48.3mm
Wall Thickness (WT): 3.68mm
Material: Stainless
Grade: 316
Standards: ANSI B16.9, Schedule 40s
Radius Centre to Face: 57.1mm
Angle: 90 Degree
Ends: Buttweld
Construction: Welded
Certification Available: 3.1 BS EN 10204 Material Certification

Applications:
Water, Oil & Gas / Petrochem, Steam, Fuels, Condensate, HVAC, Marine, Water & Waste Water, Mining, Construction, Power Generation (Energy), Waste to Energy (ERF)

Alternative terminology:
Butt Weld, Weld Bends, Weld Elbow, Long Rad, 90s
£ 29.40 29.4 GBP
DN40 (1.1/2" NB) SCHEDULE 80S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 127.0mm
Flange thickness (C): 17.5mm
Hub length (X): 65.0mm
Neck height (A): 48.2mm
Pitch circle diameter (K): 98.5mm
Hub base diameter (Y): 61.9mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 73.1mm
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
DN40 (1.1/2" NB) SCHEDULE 80S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 127.0mm
Flange thickness (C): 17.5mm
Hub length (X): 65.0mm
Neck height (A): 48.2mm
Pitch circle diameter (K): 98.5mm
Hub base diameter (Y): 61.9mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 73.1mm
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
DN40 (1.1/2" NB) SCHEDULE 80s STAINLESS SEAMLESS PIPE 304
Outside Diameter (OD): 48.3mm
Wall Thickness (WT): 5.08mm (Sch80)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 5.41kg
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
DN40 (1.1/2" NB) SCHEDULE 80s STAINLESS SEAMLESS PIPE 316
Outside Diameter (OD): 48.3mm
Wall Thickness (WT): 5.08mm (Sch80)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meter Random
Weight Per Meter: 5.41kg
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
£ 322.98 322.98 GBP
DN40 (1.1/2" NB) SOCKET WELD 3PC FB BALL VALVE LEVER OP. SS 316
Threaded: 1.1/2" NB Socket Weld (SW)
Suits an outside diameter (OD) of: 48.3mm
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

Part of our Isolation and Valves Range
£ 205.87 205.87 GBP