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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 X 10 (1/2" X 3/8" NB) BSP REDUCING HEX NIPPLE SS 316
Side 1 Thread: 1/2" BSPT Male x Male
Suits an outside diameter (OD) of: 21.3mm
Side 2 Thread: 3/8" BSPT Male x Male
Suits an outside diameter (OD) of: 17.15mm
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.
£ 42.56 42.56 GBP
DN15 X 10 (1/2" X 3/8" 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: 3/8" BSPP Female
Suits an outside diameter (OD) of: 17.15mm
Material: Stainless
Grade: 316
£ 4.69 4.69 GBP
DN15 X 10 (1/2" X 3/8" 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: 3/8" BSPT Male
Suits an outside diameter (OD) of: 17.15mm
Material: Stainless
Grade: 316
£ 6.09 6.09 GBP
DN15 X 10 (1/2" X 3/8" 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: 3/8" BSP Female
Suits an outside diameter (OD) of: 17.15mm
Material: Stainless
Grade: 316
£ 7.35 7.35 GBP
DN15 X 10 (1/2" X 3/8" NB) BSPT REDUCING BUSH SS 316
Side 1 threaded: 1/2" BSPT Male
Side 1 suits an outside diameter (OD) of: 21.3mm
Side 2 threaded: 3/8" BSPT Female
Side 2 suits suits an outside diameter (OD) of: 17.15mm

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.
£ 21.63 21.63 GBP
DN15 X 10 (1/2" X 3/8" NB) BSPT REDUCING SOCKET SS 316
Side 1 threaded: 1/2" BSPT Female
Side 1 suits an outside diameter (OD) of: 21.3mm

Side 2 threaded: 3/8" BSPT Female
Side 2 suits an outside diameter (OD) of: 17.15mm

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
DN15 X 10 (1/2" X 3/8" NB) NPT REDUCING BUSH SS 316
Side 1 threaded: 1/2" NPT Male
Side 1 suits an outside diameter (OD) of: 21.3mm
Side 2 threaded: 3/8" NPT Female
Side 2 suits suits an outside diameter (OD) of: 17.15mm

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.
£ 21.28 21.28 GBP
DN15 X 10 (1/2" X 3/8" NB) NPT REDUCING SOCKET SS 316
Side 1 threaded: 1/2" NPT Female
Side 1 suits an outside diameter (OD) of: 21.3mm

Side 2 threaded: 3/8" NPT Female
Side 2 suits an outside diameter (OD) of: 17.15mm

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
DN15 X 10 (1/2" X 3/8" 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: 3/8" NPT Female
Suits an outside diameter (OD) of: 17.15mm
Material: Stainless
Grade: 316
£ 5.95 5.95 GBP
DN15 X 10 (1/2" X 3/8" NB) NPT 150# REDUCING HEX NIPPLE SS 316
Side One Thread: 1/2" NPT Male
Suits an outside diameter (OD) of: 21.3mm
Side Two Thread: 3/8" NPT Male
Suits an outside diameter (OD) of: 17.15mm
Material: Stainless
Grade: 316
£ 7.63 7.63 GBP
DN15 X 10 (1/2" X 3/8" NB) NPT 150# REDUCING SOCKET SS 316
Side One Thread: 1/2" NPT Female
Suits an outside diameter (OD) of: 21.3mm
Side Two Thread: 3/8" NPT Female
Suits an outside diameter (OD) of: 17.15mm
Material: Stainless
Grade: 316
£ 10.43 10.43 GBP
DN15 X 10 (1/2" X 3/8" 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: 3/8" SW (Socket Weld)
Suits an outside diameter (OD) of: 17.15mm
Material: Stainless
Grade: 316
£ 12.25 12.25 GBP
DN15 X 8 (1/2" X 1/4" NB) BSP REDUCING HEX NIPPLE SS 316
Side 1 Thread: 1/2" NPT Male x Male
Suits an outside diameter (OD) of: 21.3mm
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.
£ 41.72 41.72 GBP
DN15 X 8 (1/2" X 1/4" NB) BSP REDUCING HEX NIPPLE SS 316
Side 1 Thread: 1/2" BSPT Male x Male
Suits an outside diameter (OD) of: 21.3mm
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.
£ 41.23 41.23 GBP
DN15 X 8 (1/2" X 1/4" 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: 1/4" BSPP Female
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 4.90 4.9 GBP
DN15 X 8 (1/2" X 1/4" 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: 1/4" BSPT Male
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 6.09 6.09 GBP
DN15 X 8 (1/2" X 1/4" 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: 1/4" BSP Female
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 7.35 7.35 GBP
DN15 X 8 (1/2" X 1/4" 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: 1/4" NPT Female
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 5.81 5.81 GBP
DN15 X 8 (1/2" X 1/4" NB) NPT 150# REDUCING HEX NIPPLE SS 316
Side One Thread: 1/2" NPT Male
Suits an outside diameter (OD) of: 21.3mm
Side Two Thread: 1/4" NPT Male
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 34.65 34.65 GBP
DN15 X 8 (1/2" X 1/4" NB) NPT 150# REDUCING SOCKET SS 316
Side One Thread: 1/2" NPT Female
Suits an outside diameter (OD) of: 21.3mm
Side Two Thread: 1/4" NPT Female
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 10.29 10.29 GBP
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