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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

DN10 (⅜" NB) SW 3000# FXF ELBOW 45° SS 316
Connection: ⅜" SW (Socket Weld)
Suits an outside diameter (OD) of: 17.15mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Elbow, FXF, 45°, 45 Degree, Stainless Steel
£ 23.80 23.8 GBP
DN10 (⅜" NB) SW 3000# FXF ELBOW 90° SS 316
Connection: ⅜" SW (Socket Weld)
Suits an outside diameter (OD) of: 17.15mm
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
£ 33.67 33.67 GBP
DN10 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a DN10 DIN Union
Material: Stainless
Grade: 304

Applications: Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£ 13.02 13.02 GBP
DN10 X 6 (3/8" X 1/8" NB) BSPT REDUCING BUSH SS 316
Side 1 threaded: 3/8" BSPT Male
Side 1 suits an outside diameter (OD) of: 17.15mm
Side 2 threaded: 1/8" BSPT Female
Side 2 suits suits an outside diameter (OD) of: 10.29mm

Material: Forged Stainless Steel
Grade: 316

Standards:
BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97

Alternative terminology:
Forged Stainless Steel,Stainless Steel, Reducing Bush, Threaded, Screwed, , Fittings.
£ 17.29 17.29 GBP
DN10 X 6 (3/8" X 1/8" NB) NPT REDUCING BUSH SS 316
Side 1 threaded: 3/8" NPT Male
Side 1 suits an outside diameter (OD) of: 17.15mm
Side 2 threaded: 1/8" NPT Female
Side 2 suits suits an outside diameter (OD) of: 10.29mm

Material: Forged Stainless Steel
Grade: 316

Standards:
BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97

Alternative terminology:
Forged Stainless Steel,Stainless Steel, Reducing Bush, Threaded, Screwed, , Fittings.
£ 16.94 16.94 GBP
DN10 X 8 (3/8" X 1/4" NB) BSPT REDUCING BUSH SS 316
Side 1 threaded: 3/8" BSPT Male
Side 1 suits an outside diameter (OD) of: 17.15mm
Side 2 threaded: 1/4" BSPT Female
Side 2 suits suits an outside diameter (OD) of: 13.72mm

Material: Forged Stainless Steel
Grade: 316

Standards:
BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97

Alternative terminology:
Forged Stainless Steel,Stainless Steel, Reducing Bush, Threaded, Screwed, , Fittings.
£ 18.41 18.41 GBP
DN10 X 8 (3/8" X 1/4" NB) NPT REDUCING BUSH SS 316
Side 1 threaded: 3/8" NPT Male
Side 1 suits an outside diameter (OD) of: 17.15mm
Side 2 threaded: 1/4" NPT Female
Side 2 suits suits an outside diameter (OD) of: 13.72mm

Material: Forged Stainless Steel
Grade: 316

Standards:
BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97

Alternative terminology:
Forged Stainless Steel,Stainless Steel, Reducing Bush, Threaded, Screwed, , Fittings.
£ 21.07 21.07 GBP
DN10 X 3 (3/8" X 1/4" NB) BSP 150# REDUCING HEX BUSH SS 316
Side One Thread: 3/8" BSPT Male
Suits an outside diameter (OD) of: 17.15mm
Side Two Thread: 1/4" BSPP Female
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 3.43 3.43 GBP
DN10 X 3 (3/8" X 1/4" NB) BSP 150# REDUCING HEX NIPPLE SS 316
Side One Thread: 3/8" BSPT Male
Suits an outside diameter (OD) of: 17.15mm
Side Two Thread: 1/4" BSPT Male
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 6.30 6.3 GBP
DN10 X 3 (3/8" X 1/4" NB) BSP 150# REDUCING SOCKET SS 316
Side One Thread: 3/8" BSP Female
Suits an outside diameter (OD) of: 17.15mm
Side Two Thread: 1/4" BSP Female
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 6.02 6.02 GBP
DN10 X 3 (3/8" X 1/4" NB) NPT 150# REDUCING HEX BUSH SS 316
Side One Thread: 3/8" NPT Male
Suits an outside diameter (OD) of: 17.15mm
Side Two Thread: 1/4" NPT Female
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 3.29 3.29 GBP
DN10 X 3 (3/8" X 1/4" NB) NPT 150# REDUCING HEX NIPPLE SS 316
Side One Thread: 3/8" NPT Male
Suits an outside diameter (OD) of: 17.15mm
Side Two Thread: 1/4" NPT Male
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 6.09 6.09 GBP
DN10 X 3 (3/8" X 1/4" NB) NPT 150# REDUCING SOCKET SS 316
Side One Thread: 3/8" NPT Female
Suits an outside diameter (OD) of: 17.15mm
Side Two Thread: 1/4" NPT Female
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 7.98 7.98 GBP
DN10 X 3 (3/8" X 1/4" NB) SW 150# REDUCING SOCKET SS 316
Side One Connection: 3/8" SW (Socket Weld)
Suits an outside diameter (OD) of: 17.15mm
Side Two Connection: 1/4" SW (Socket Weld)
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 7.14 7.14 GBP
DN10 X 3 (3/8" X 1/8" NB) BSP 150# REDUCING HEX BUSH SS 316
Side One Thread: 3/8" BSPT Male
Suits an outside diameter (OD) of: 17.15mm
Side Two Thread: 1/8" BSPP Female
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
£ 3.43 3.43 GBP
DN10 X 3 (3/8" X 1/8" NB) BSP 150# REDUCING HEX NIPPLE SS 316
Side One Thread: 3/8" BSPT Male
Suits an outside diameter (OD) of: 17.15mm
Side Two Thread: 1/8" BSPT Male
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
£ 3.99 3.99 GBP
DN10 X 3 (3/8" X 1/8" NB) BSP 150# REDUCING SOCKET SS 316
Side One Thread: 3/8" BSP Female
Suits an outside diameter (OD) of: 17.15mm
Side Two Thread: 1/8" BSP Female
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
£ 6.02 6.02 GBP
DN10 X 3 (3/8" X 1/8" NB) NPT 150# REDUCING HEX BUSH SS 316
Side One Thread: 3/8" NPT Male
Suits an outside diameter (OD) of: 17.15mm
Side Two Thread: 1/8" NPT Female
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
£ 3.29 3.29 GBP
DN10 X 3 (3/8" X 1/8" NB) SW 150# REDUCING SOCKET SS 316
Side One Connection: 3/8" SW (Socket Weld)
Suits an outside diameter (OD) of: 17.15mm
Side Two Connection: 1/8" SW (Socket Weld)
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
£ 7.14 7.14 GBP
DN10 X 8 (3/8" X 1/4" NB) BSP REDUCING HEX NIPPLE SS 316
Side 1 Thread: 3/8" NPT Male x Male
Suits an outside diameter (OD) of: 17.15mm
Side 2 Thread: 1/4" NPT Male x Male
Suits an outside diameter (OD) of: 13.72mm
Material: Forged Stainless Steel
Grade: 316

Standards:
BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97




Alternative terminology:
Reducing Heagon Nipple, Forged Stainless Steel, Stainless Steel, Threaded, Screwed, Fittings.
£ 28.91 28.91 GBP
DN10 X 8 (3/8" X 1/4" NB) BSP REDUCING HEX NIPPLE SS 316
Side 1 Thread: 3/8" BSPT Male x Male
Suits an outside diameter (OD) of: 17.15mm
Side 2 Thread: 1/4" BSPT Male x Male
Suits an outside diameter (OD) of: 13.72mm
Material: Forged Stainless Steel
Grade: 316

Standards:
BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97




Alternative terminology:
Reducing Heagon Nipple, Forged Stainless Steel, Stainless Steel, Threaded, Screwed, Fittings.
£ 36.12 36.12 GBP
DN10 X 8 (3/8" X 1/4" NB) BSPT REDUCING SOCKET SS 316
Side 1 threaded: 3/8" BSPT Female
Side 1 suits an outside diameter (OD) of: 17.15mm

Side 2 threaded: 1/4" BSPT Female
Side 2 suits an outside diameter (OD) of: 13.72mm

Material: Forged Stainless steel
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, 3000 psi (3K) High Pressure, Forged Stainless steel, BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97




Alternative terminology:
Reducer, Socket, Coupling, Reducing Socket, Coupling, Stainless Steel
Contact us for pricing 0.0 GBP
DN10 X 8 (3/8" X 1/4" NB) NPT REDUCING SOCKET SS 316
Side 1 threaded: 3/8" NPT Female
Side 1 suits an outside diameter (OD) of: 17.15mm

Side 2 threaded: 1/4" NPT Female
Side 2 suits an outside diameter (OD) of: 13.72mm

Material: Forged Stainless steel
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, 3000 psi (3K) High Pressure, Forged Stainless steel, BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97




Alternative terminology:
Reducer, Socket, Coupling, Reducing Socket, Coupling, Stainless Steel
Contact us for pricing 0.0 GBP
DN100 (4" NB) NPT 3PC (FXF) FB BALL VALVE LEVER OP. SS 316
Threaded: 4" NPT Female
Suits an outside diameter (OD) of: 114.3mm
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
£ 1,972.04 1972.04 GBP
DN10x8 (3/8" x 1/4" NB) BSP 150# REDUCING TEE SS 316
Thread: 3/8" BSPP Female x Female, 1/4" BSPP Female Branch
Suits main run OD 17.1mm, 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
DN15 (1/2 NB) SCHEDULE 10S ASA300 WELD NECK FLANGE SS 304
Outside diameter (O): 95.2mm
Flange thickness (C): 14.2mm
Hub height (X): 38.1mm
Length through hub (A): 21.3mm
Bolt circle diameter (K): 66.5mm
Overall height (Y): 52.3mm
Raised face thickness (RF): 1.5mm
Bore (B): 35.0mm
Number of bolt holes: 4
Bolt hole diameter: 15.7mm
Approx. weight: 0.9kg
Contact us for pricing 0.0 GBP
DN15 (1/2 NB) SCHEDULE 10S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 95.2mm
Flange thickness (C): 14.2mm
Hub height (X): 38.1mm
Length through hub (A): 21.3mm
Bolt circle diameter (K): 66.5mm
Overall height (Y): 52.3mm
Raised face thickness (RF): 1.5mm
Bore (B): 35.0mm
Number of bolt holes: 4
Bolt hole diameter: 15.7mm
Approx. weight: 0.9kg
£ 53.97 53.97 GBP
DN15 (1/2 NB) SCHEDULE 40S ASA300 WELD NECK FLANGE SS 304
Outside diameter (O): 95.2mm
Flange thickness (C): 14.2mm
Hub height (X): 38.1mm
Length through hub (A): 21.3mm
Bolt circle diameter (K): 66.5mm
Overall height (Y): 52.3mm
Raised face thickness (RF): 1.5mm
Bore (B): 35.0mm
Number of bolt holes: 4
Bolt hole diameter: 15.7mm
Approx. weight: 0.9kg
Contact us for pricing 0.0 GBP
DN15 (1/2 NB) SCHEDULE 40S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 95.2mm
Flange thickness (C): 14.2mm
Hub height (X): 38.1mm
Length through hub (A): 21.3mm
Bolt circle diameter (K): 66.5mm
Overall height (Y): 52.3mm
Raised face thickness (RF): 1.5mm
Bore (B): 35.0mm
Number of bolt holes: 4
Bolt hole diameter: 15.7mm
Approx. weight: 0.9kg
£ 53.48 53.48 GBP
DN15 (1/2 NB) SCHEDULE 80S ASA300 WELD NECK FLANGE SS 304
Outside diameter (O): 95.2mm
Flange thickness (C): 14.2mm
Hub height (X): 38.1mm
Length through hub (A): 21.3mm
Bolt circle diameter (K): 66.5mm
Overall height (Y): 52.3mm
Raised face thickness (RF): 1.5mm
Bore (B): 35.0mm
Number of bolt holes: 4
Bolt hole diameter: 15.7mm
Approx. weight: 0.9kg
Contact us for pricing 0.0 GBP
DN15 (1/2 NB) SCHEDULE 80S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 95.2mm
Flange thickness (C): 14.2mm
Hub height (X): 38.1mm
Length through hub (A): 21.3mm
Bolt circle diameter (K): 66.5mm
Overall height (Y): 52.3mm
Raised face thickness (RF): 1.5mm
Bore (B): 35.0mm
Number of bolt holes: 4
Bolt hole diameter: 15.7mm
Approx. weight: 0.9kg
Contact us for pricing 0.0 GBP
DN15 (1/2" NB) 150# MALE X 1/2" HOSETAIL SS 316
Side One Thread: 1/2" BSPT Male
Side One Suits an outside diameter (OD) of: 21.3mm

Side Two Hose Tail: 1/2" Serration
Side Two Suits Hose inside Diameter (ID)of: 12.7mm

Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Hose, Low Pressure, 150 psi
£ 6.30 6.3 GBP
DN15 (1/2" NB) ASA150 FLANGED 2PC LEVER OP. BALL VALVE LEVER OP SS 316
Flanged both ends: 1/2" ASA150
Suits an outside diameter (OD) of: 21.3mm
PCD: 60.3mm Ø (ANSI 150)
Face to face: 108mm
Construction: 2 Piece
Body Material: CF8/CF8M (316) Stainless
Bore: Full Bore
Internals: PTFE Seals
Investment Casting
Blowout proof stem
£ 215.32 215.32 GBP
DN15 (1/2" NB) ASA150 RF BLIND FLANGE SS 304
Outside diameter (O): 88.9mm
Flange thickness (C): 11.1mm
Pitch circle diameter (K): 60.4mm
Raised face height (RF): 1.5mm
Raised face diameter (R): 35.0mm
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
DN15 (1/2" NB) ASA150 RF BLIND FLANGE SS 316
Outside diameter (O): 88.9mm
Flange thickness (C): 11.1mm
Pitch circle diameter (K): 60.4mm
Raised face height (RF): 1.5mm
Raised face diameter (R): 35.0mm
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
£ 24.50 24.5 GBP
DN15 (1/2" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 88.9mm (O)
Flange thickness: 11.1mm (C)
Flange hub height: 15.7mm (Y)
Pitch Circle Diameter (PCD): 60.4mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 4 off 15.7mm diameter
Bore Diameter: 22.3mm (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
DN15 (1/2" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 88.9mm (O)
Flange thickness: 11.1mm (C)
Flange hub height: 15.7mm (Y)
Pitch Circle Diameter (PCD): 60.4mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 4 off 15.7mm diameter
Bore Diameter: 22.3mm (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
DN15 (1/2" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 120.6mm (O)
Flange thickness: 22.3mm (C)
Flange hub height: 31.7mm (Y)
Pitch Circle Diameter (PCD): 82.5mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 4 off 22.3mm diameter
Bore Diameter: 22.3mm (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
DN15 (1/2" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 120.6mm (O)
Flange thickness: 22.3mm (C)
Flange hub height: 31.7mm (Y)
Pitch Circle Diameter (PCD): 82.5mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 4 off 22.3mm diameter
Bore Diameter: 22.3mm (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
DN15 (1/2" NB) ASA300 RF BLIND FLANGE SS 304
Outside diameter (O): 95.2mm
Flange thickness (C): 14.2mm
Pitch circle diameter (K): 66.5mm
Raised face height (RF): 1.5mm
Raised face diameter (R): 35.0mm
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