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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.

DN15 X 8 (1/2" X 1/4" NB) SW 150# REDUCING SOCKET SS 316
Side One Connection: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Side Two Connection: 1/4" SW (Socket Weld)
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 8.54 8.54 GBP
DN15 X 8 (1/2" X 1/8" NB) BSP 150# REDUCING HEX BUSH SS 316
Side One Thread: 1/2" BSPT Male
Suits an outside diameter (OD) of: 21.3mm
Side Two Thread: 1/8" BSPP Female
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
£ 4.27 4.27 GBP
DN15 X 8 (1/2" X 1/8" NB) BSP 150# REDUCING HEX NIPPLE SS 316
Side One Thread: 1/2" BSPT Male
Suits an outside diameter (OD) of: 21.3mm
Side Two Thread: 1/8" BSPT Male
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
£ 6.09 6.09 GBP
DN15 X 8 (1/2" X 1/8" NB) BSP 150# REDUCING SOCKET SS 316
Side One Thread: 1/2" BSP Female
Suits an outside diameter (OD) of: 21.3mm
Side Two Thread: 1/8" BSP Female
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
£ 7.35 7.35 GBP
DN15 X 8 (1/2" X 1/8" NB) NPT 150# REDUCING HEX BUSH SS 316
Side One Thread: 1/2" NPT Male
Suits an outside diameter (OD) of: 21.3mm
Side Two Thread: 1/8" NPT Female
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
£ 5.74 5.74 GBP
DN15 X 8 (1/2" X 1/8" NB) SW 150# REDUCING SOCKET SS 316
Side One Connection: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Side Two Connection: 1/8" SW (Socket Weld)
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
£ 9.94 9.94 GBP
DN15x10 (1/2" x 3/8" NB) BSP 150# REDUCING TEE SS 316
Thread: 1/2" BSPP Female x Female, 3/8" BSPP Female Branch
Suits main run OD 21.3mm, branch OD 17.1mm

Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Reducing Tee, Tee Piece, Screwed, Low Pressure, 150 psi
£ 14.35 14.35 GBP
DN15x8 (1/2" x 1/4" NB) BSP 150# REDUCING TEE SS 316
Thread: 1/2" BSPP Female x Female, 1/4" BSPP Female Branch
Suits main run OD 21.3mm, branch OD 13.7mm

Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Reducing Tee, Tee Piece, Screwed, Low Pressure, 150 psi
£ 14.35 14.35 GBP
DN20 (3/4 NB) SCHEDULE 10S ASA300 WELD NECK FLANGE SS 304
Outside diameter (O): 117.3mm
Flange thickness (C): 15.7mm
Hub height (X): 47.7mm
Length through hub (A): 26.6mm
Bolt circle diameter (K): 82.5mm
Overall height (Y): 57.1mm
Raised face thickness (RF): 1.5mm
Bore (B): 42.9mm
Number of bolt holes: 4
Bolt hole diameter: 19.0mm
Approx. weight: 1.5kg
Contact us for pricing 0.0 GBP
DN20 (3/4 NB) SCHEDULE 10S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 117.3mm
Flange thickness (C): 15.7mm
Hub height (X): 47.7mm
Length through hub (A): 26.6mm
Bolt circle diameter (K): 82.5mm
Overall height (Y): 57.1mm
Raised face thickness (RF): 1.5mm
Bore (B): 42.9mm
Number of bolt holes: 4
Bolt hole diameter: 19.0mm
Approx. weight: 1.5kg
£ 129.15 129.15 GBP
DN20 (3/4 NB) SCHEDULE 40S ASA300 WELD NECK FLANGE SS 304
Outside diameter (O): 117.3mm
Flange thickness (C): 15.7mm
Hub height (X): 47.7mm
Length through hub (A): 26.6mm
Bolt circle diameter (K): 82.5mm
Overall height (Y): 57.1mm
Raised face thickness (RF): 1.5mm
Bore (B): 42.9mm
Number of bolt holes: 4
Bolt hole diameter: 19.0mm
Approx. weight: 1.5kg
Contact us for pricing 0.0 GBP
DN20 (3/4 NB) SCHEDULE 40S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 117.3mm
Flange thickness (C): 15.7mm
Hub height (X): 47.7mm
Length through hub (A): 26.6mm
Bolt circle diameter (K): 82.5mm
Overall height (Y): 57.1mm
Raised face thickness (RF): 1.5mm
Bore (B): 42.9mm
Number of bolt holes: 4
Bolt hole diameter: 19.0mm
Approx. weight: 1.5kg
£ 131.11 131.11 GBP
DN20 (3/4 NB) SCHEDULE 80S ASA300 WELD NECK FLANGE SS 304
Outside diameter (O): 117.3mm
Flange thickness (C): 15.7mm
Hub height (X): 47.7mm
Length through hub (A): 26.6mm
Bolt circle diameter (K): 82.5mm
Overall height (Y): 57.1mm
Raised face thickness (RF): 1.5mm
Bore (B): 42.9mm
Number of bolt holes: 4
Bolt hole diameter: 19.0mm
Approx. weight: 1.5kg
Contact us for pricing 0.0 GBP
DN20 (3/4 NB) SCHEDULE 80S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 117.3mm
Flange thickness (C): 15.7mm
Hub height (X): 47.7mm
Length through hub (A): 26.6mm
Bolt circle diameter (K): 82.5mm
Overall height (Y): 57.1mm
Raised face thickness (RF): 1.5mm
Bore (B): 42.9mm
Number of bolt holes: 4
Bolt hole diameter: 19.0mm
Approx. weight: 1.5kg
Contact us for pricing 0.0 GBP
DN20 (3/4" NB) 3PC SOCKET WELD 3PC FB BALL VALVE LEVER OP. SS 316
Threaded: 3/4" NB Socket Weld (SW)
Suits an outside diameter (OD) of: 26.9mm
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
£ 73.92 73.92 GBP
DN20 (3/4" NB) ASA150 FLANGED 2PC LEVER OP. BALL VALVE LEVER OP SS 316
Flanged both ends: 3/4" ASA 150
Suits an outside diameter (OD) of: 26.9mm
PCD: 69.8mm Ø (ANSI 150)
Face to face: 117.1mm
Construction: 2 Piece
Body Material: CF8/CF8M (316) Stainless
Bore: Full Bore
Internals: PTFE Seals
Investment Casting
Blowout proof stem
£ 243.04 243.04 GBP
DN20 (3/4" NB) ASA150 RF BLIND FLANGE SS 304
Outside diameter (O): 98.5mm
Flange thickness (C): 12.7mm
Pitch circle diameter (K): 69.8mm
Raised face height (RF): 1.5mm
Raised face diameter (R): 42.9mm
Number of bolt holes: 4
Material: Stainless Steel 304
Rating: ASA 150
Type: Blind flange (ASME B16.5)

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

Alternative terminology:
Blind Flange, Blank, ASA150, Stainless Steel, Raised Faced
Contact us for pricing 0.0 GBP
DN20 (3/4" NB) ASA150 RF BLIND FLANGE SS 316
Outside diameter (O): 98.5mm
Flange thickness (C): 12.7mm
Pitch circle diameter (K): 69.8mm
Raised face height (RF): 1.5mm
Raised face diameter (R): 42.9mm
Number of bolt holes: 4
Material: Stainless Steel 316
Rating: ASA 150
Type: Blind flange (ASME B16.5)

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

Alternative terminology:
Blind Flange, Blank, ASA150, Stainless Steel, Raised Faced
£ 36.54 36.54 GBP
DN20 (3/4" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 98.5mm (O)
Flange thickness: 12.7mm (C)
Flange hub height: 15.7mm (Y)
Pitch Circle Diameter (PCD): 69.8mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 4 off 15.7mm diameter
Bore Diameter: 27.6mm (B)
Material: Stainless Steel
Grade: 304
Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Slip on Flange, Weld on, Stainless Steel, Raised Faced, ASA 150LB, SOB
Contact us for pricing 0.0 GBP
DN20 (3/4" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 98.5mm (O)
Flange thickness: 12.7mm (C)
Flange hub height: 15.7mm (Y)
Pitch Circle Diameter (PCD): 69.8mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 4 off 15.7mm diameter
Bore Diameter: 27.6mm (B)
Material: Stainless Steel
Grade: 316
Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Slip on Flange, Weld on, Stainless Steel, Raised Faced, ASA 150LB, SOB
Contact us for pricing 0.0 GBP
DN20 (3/4" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 130.0mm (O)
Flange thickness: 25.4mm (C)
Flange hub height: 35.0mm (Y)
Pitch Circle Diameter (PCD): 88.9mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 4 off 22.3mm diameter
Bore Diameter: 27.6mm (B)
Material: Stainless Steel
Grade: 304
Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Slip on Flange, Weld on, Stainless Steel, Raised Faced, ASA 1500LB, SOB
Contact us for pricing 0.0 GBP
DN20 (3/4" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 130.0mm (O)
Flange thickness: 25.4mm (C)
Flange hub height: 35.0mm (Y)
Pitch Circle Diameter (PCD): 88.9mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 4 off 22.3mm diameter
Bore Diameter: 27.6mm (B)
Material: Stainless Steel
Grade: 316
Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Slip on Flange, Weld on, Stainless Steel, Raised Faced, ASA 1500LB, SOB
Contact us for pricing 0.0 GBP
DN20 (3/4" NB) ASA300 RF BLIND FLANGE SS 304
Outside diameter (O): 117.3mm
Flange thickness (C): 15.7mm
Pitch circle diameter (K): 82.5mm
Raised face height (RF): 1.5mm
Raised face diameter (R): 42.9mm
Number of bolt holes: 4
Material: Stainless Steel 304
Rating: ASA 300
Type: Blind flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 2.1 BS EN 10204 Material Certification

Alternative terminology:
Blind Flange, Blank, ASA300, Stainless Steel, Raised Faced
Contact us for pricing 0.0 GBP
DN20 (3/4" NB) ASA300 RF BLIND FLANGE SS 316
Outside diameter (O): 117.3mm
Flange thickness (C): 15.7mm
Pitch circle diameter (K): 82.5mm
Raised face height (RF): 1.5mm
Raised face diameter (R): 42.9mm
Number of bolt holes: 4
Material: Stainless Steel 316
Rating: ASA 300
Type: Blind flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 2.1 BS EN 10204 Material Certification

Alternative terminology:
Blind Flange, Blank, ASA300, Stainless Steel, Raised Faced
£ 70.14 70.14 GBP
DN20 (3/4" NB) ASA300 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 117.3mm (O)
Flange thickness: 15.7mm (C)
Flange hub height: 25.4mm (Y)
Pitch Circle Diameter (PCD): 82.5mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 4 off 19.0mm diameter
Bore Diameter: 27.6mm (B)
Material: Stainless Steel
Grade: 304
Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Slip on Flange, Weld on, Stainless Steel, Raised Faced, ASA 300LB, SOB
Contact us for pricing 0.0 GBP
DN20 (3/4" NB) ASA300 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 117.3mm (O)
Flange thickness: 15.7mm (C)
Flange hub height: 25.4mm (Y)
Pitch Circle Diameter (PCD): 82.5mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 4 off 19.0mm diameter
Bore Diameter: 27.6mm (B)
Material: Stainless Steel
Grade: 316
Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Slip on Flange, Weld on, Stainless Steel, Raised Faced, ASA 300LB, SOB
Contact us for pricing 0.0 GBP
DN20 (3/4" NB) ASA600 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 117.3mm (O)
Flange thickness: 15.7mm (C)
Flange hub height: 25.4mm (Y)
Pitch Circle Diameter (PCD): 82.5mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 4 off 19.0mm diameter
Bore Diameter: 27.6mm (B)
Material: Stainless Steel
Grade: 304
Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Slip on Flange, Weld on, Stainless Steel, Raised Faced, ASA 600LB, SOB
Contact us for pricing 0.0 GBP
DN20 (3/4" NB) ASA600 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 117.3mm (O)
Flange thickness: 15.7mm (C)
Flange hub height: 25.4mm (Y)
Pitch Circle Diameter (PCD): 82.5mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 4 off 19.0mm diameter
Bore Diameter: 27.6mm (B)
Material: Stainless Steel
Grade: 316
Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Slip on Flange, Weld on, Stainless Steel, Raised Faced, ASA 600LB, SOB
Contact us for pricing 0.0 GBP
DN20 (3/4" NB) BSP 150# (FXF) CONE SEAT UNION SS 316
Thread: 3/4" BSPP Female x Female
Suits an outside diameter (OD) of: 26.7mm
Material: Stainless
Grade: 316
£ 22.40 22.4 GBP
DN20 (3/4" NB) BSP 150# (FXF) ELBOW 45° SS 316
Thread: 3/4" BSPP Female x Female
Suits an outside diameter (OD) of: 26.9mm
Material: Stainless
Grade: 316
Elbow Angle: 45° (Degree)

Standards:
Nominal Bore, Threaded, Elbow, 45°, 45 Deg, Screwed, Low Pressure, 150 psi
£ 8.26 8.26 GBP
DN20 (3/4" NB) BSP 150# (FXF) ELBOW 90° SS 316
Thread: 3/4" BSPP Female x Female
Suits an outside diameter (OD) of: 26.9mm
Material: Stainless
Grade: 316
Elbow Angle: 90° (Degree)

Standards:
Nominal Bore, Threaded, Elbow, 90°, 90 Deg, Screwed, Low Pressure, 150 psi
£ 8.12 8.12 GBP
DN20 (3/4" NB) BSP 150# (MXF) CONE SEAT UNION SS 316
Thread: 3/4" BSPP Female x Female
Suits an outside diameter (OD) of: 26.7mm
Material: Stainless
Grade: 316

Alternative terminology:
Male x Female, MF, MXF, Union, Threaded, Screwed, Street Union
£ 23.80 23.8 GBP
DN20 (3/4" NB) BSP 150# (MXF) ELBOW 90° SS 316
Side One Thread: 3/4" BSPT Male
Side Two Thread: 3/4" BSPP Female
Both Sides Suit an outside diameter (OD) of: 26.9mm
Male x Female Elbow, Also known as a 'Street Elbow '
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 11.97 11.97 GBP
DN20 (3/4" NB) BSP 150# BARREL NIPPLE SS 316
Thread: 3/4" BSPT Male x Male
Suits an outside diameter (OD) of: 26.7mm
Material: Stainless
Grade: 316
£ 7.42 7.42 GBP
DN20 (3/4" NB) BSP 150# EQUAL FULL SOCKET SS 316
Thread: 3/4" BSP Female x Female
Suits an outside diameter (OD) of: 26.7mm
Material: Stainless
Grade: 316
£ 7.42 7.42 GBP
DN20 (3/4" NB) BSP 150# EQUAL TEE SS 316
Thread: 3/4" BSPP Female x Female x Female
Suits an outside diameter of 26.7mm

Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Equal, Tee, Tee Piece, Screwed, Low Pressure, 150 psi
£ 15.40 15.4 GBP
DN20 (3/4" NB) BSP 150# HALF SOCKET SS 316
Thread: 3/4" BSP Female x Female
Suits an outside diameter (OD) of: 26.7mm
Material: Stainless
Grade: 316
£ 5.32 5.32 GBP
DN20 (3/4" NB) BSP 150# HEX CAP END SS 316
Thread: 3/4" BSPP Female
Suits an outside diameter (OD) of: 26.9mm
Material: Stainless
Grade: 316
£ 7.49 7.49 GBP
DN20 (3/4" NB) BSP 150# HEX CAP SS 316
Thread: 3/4" BSPP Female
Suits an outside diameter (OD) of: 26.7mm
Material: Stainless
Grade: 316
Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi

Alternative terminology:
Female Cap, Termination, Blanking Cap, Cap End
£ 7.49 7.49 GBP
DN20 (3/4" NB) BSP 150# HEX HEAD PLUG SS 316
Thread: 3/4" BSPT Male
Suits an outside diameter (OD) of: 26.7mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Male Plug, Termination, Blanking Plug, Stop end
£ 6.37 6.37 GBP