Skip to Content

Integraflow Store 

  1. Products
  2. Stainless
  3. Nominal Bore

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.

List 600
Sort By: Name (A-Z)

Nominal Bore

DN25 (1 NB) SCHEDULE 40S ASA300 WELD NECK FLANGE SS 304
Outside diameter (O): 123.9mm
Flange thickness (C): 17.5mm
Hub height (X): 53.8mm
Length through hub (A): 33.5mm
Bolt circle diameter (K): 88.9mm
Overall height (Y): 61.9mm
Raised face thickness (RF): 1.5mm
Bore (B): 50.8mm
Number of bolt holes: 4
Bolt hole diameter: 19.0mm
Approx. weight: 1.9kg
Contact us for pricing 0.0 GBP
DN25 (1 NB) SCHEDULE 40S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 123.9mm
Flange thickness (C): 17.5mm
Hub height (X): 53.8mm
Length through hub (A): 33.5mm
Bolt circle diameter (K): 88.9mm
Overall height (Y): 61.9mm
Raised face thickness (RF): 1.5mm
Bore (B): 50.8mm
Number of bolt holes: 4
Bolt hole diameter: 19.0mm
Approx. weight: 1.9kg
£ 108.92 108.92 GBP
DN25 (1 NB) SCHEDULE 80S ASA300 WELD NECK FLANGE SS 304
Outside diameter (O): 123.9mm
Flange thickness (C): 17.5mm
Hub height (X): 53.8mm
Length through hub (A): 33.5mm
Bolt circle diameter (K): 88.9mm
Overall height (Y): 61.9mm
Raised face thickness (RF): 1.5mm
Bore (B): 50.8mm
Number of bolt holes: 4
Bolt hole diameter: 19.0mm
Approx. weight: 1.9kg
Contact us for pricing 0.0 GBP
DN25 (1 NB) SCHEDULE 80S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 123.9mm
Flange thickness (C): 17.5mm
Hub height (X): 53.8mm
Length through hub (A): 33.5mm
Bolt circle diameter (K): 88.9mm
Overall height (Y): 61.9mm
Raised face thickness (RF): 1.5mm
Bore (B): 50.8mm
Number of bolt holes: 4
Bolt hole diameter: 19.0mm
Approx. weight: 1.9kg
Contact us for pricing 0.0 GBP
DN25 (1" NB) 150# (MXF) ELBOW 90° SS 316
Side One Thread: 1" NPT Male
Side Two Thread: 1" NPT Female
Both Sides Suit an outside diameter (OD) of: 33.4mm
Male x Female Elbow, Also known as a 'Street Elbow '
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 26.25 26.25 GBP
DN25 (1" NB) 150# (MXF) ELBOW 90° SS 316
Side One Thread: 1" BSPT Male
Side Two Thread: 1" BSPP Female
Both Sides Suit an outside diameter (OD) of: 33.4mm
Male x Female Elbow, Also known as a 'Street Elbow '
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 15.96 15.96 GBP
DN25 (1" NB) 150# HEX CAP END SS 316
Thread: 1" BSPP Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 11.34 11.34 GBP
DN25 (1" NB) 150# HEX HEAD PLUG SS 316
Thread: 1" BSPT Male
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 8.75 8.75 GBP
DN25 (1" NB) 150# HEX NIPPLE SS 316
Thread: 1" BSPT Male x Male
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 9.87 9.87 GBP
DN25 (1" NB) 150# MALE X 1" HOSETAIL SS 316
Side One Thread: 1" BSPT Male
Side One Suits an outside diameter (OD) of: 33.4mm
Side Two Hose Tail: 1" Serration
Side Two Suits Hose inside Diameter (ID)of: 25.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Hose, Low Pressure, 150 psi
£ 18.20 18.2 GBP
DN25 (1" NB) 150# SQUARE HEAD PLUG SS 316
Thread: 1" BSPT Male
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 8.75 8.75 GBP
DN25 (1" NB) 150# WELD NIPPLE SS 316
Side One Thread: 1" BSPT Male
Side One Suits an outside diameter (OD) of: 33.4mm
Side Two Plain: 1" Buttweld
Side Two Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 6.65 6.65 GBP
DN25 (1" NB) ASA150 FLANGED 2PC LEVER OP. BALL VALVE LEVER OP SS 316
Flanged both ends: 1" ANSI 150
Suits an outside diameter (OD) of: 33.4mm
PCD: 79.4mm Ø (ASA 150)
Face to face: 127mm
Construction: 2 Piece
Body Material: CF8/CF8M (316) Stainless
Bore: Full Bore
Internals: PTFE Seals
Investment Casting
Blowout proof stem
£ 325.22 325.22 GBP
DN25 (1" NB) ASA150 RF BLANK FLANGE SS 304
Blanking / Blind Flange
Material: Stainless
Grade: 304
Standards: ASME B16.9 / ASA150
Flange Face: Raised
Bolt Holes: 4 off to suit 1/2"⌀ or M12 Bolts
PCD: 79.4mm
Flange Diameter: 107.9mm
Flange Thickness: 17.5mm
Certification Available: 3.1 BS EN 10204 Material Certification
£ 33.60 33.6 GBP
DN25 (1" NB) ASA150 RF BLIND FLANGE SS 304
Outside diameter (O): 107.9mm
Flange thickness (C): 14.2mm
Pitch circle diameter (K): 79.2mm
Raised face height (RF): 1.5mm
Raised face diameter (R): 50.8mm
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
DN25 (1" NB) ASA150 RF BLIND FLANGE SS 316
Outside diameter (O): 107.9mm
Flange thickness (C): 14.2mm
Pitch circle diameter (K): 79.2mm
Raised face height (RF): 1.5mm
Raised face diameter (R): 50.8mm
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
£ 47.18 47.18 GBP
DN25 (1" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 107.9mm (O)
Flange thickness: 14.2mm (C)
Flange hub height: 17.5mm (Y)
Pitch Circle Diameter (PCD): 79.2mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 4 off 15.7mm diameter
Bore Diameter: 34.5mm (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
DN25 (1" NB) ASA150 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 107.9mm (O)
Flange thickness: 14.2mm (C)
Flange hub height: 17.5mm (Y)
Pitch Circle Diameter (PCD): 79.2mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 4 off 15.7mm diameter
Bore Diameter: 34.5mm (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
DN25 (1" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 149.3mm (O)
Flange thickness: 28.4mm (C)
Flange hub height: 41.1mm (Y)
Pitch Circle Diameter (PCD): 101.6mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 4 off 25.4mm diameter
Bore Diameter: 34.5mm (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
DN25 (1" NB) ASA1500 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 149.3mm (O)
Flange thickness: 28.4mm (C)
Flange hub height: 41.1mm (Y)
Pitch Circle Diameter (PCD): 101.6mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 4 off 25.4mm diameter
Bore Diameter: 34.5mm (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
DN25 (1" NB) ASA300 RF BLIND FLANGE SS 304
Outside diameter (O): 123.9mm
Flange thickness (C): 17.5mm
Pitch circle diameter (K): 88.9mm
Raised face height (RF): 1.5mm
Raised face diameter (R): 50.8mm
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
DN25 (1" NB) ASA300 RF BLIND FLANGE SS 316
Outside diameter (O): 123.9mm
Flange thickness (C): 17.5mm
Pitch circle diameter (K): 88.9mm
Raised face height (RF): 1.5mm
Raised face diameter (R): 50.8mm
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
£ 73.78 73.78 GBP
DN25 (1" NB) ASA300 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 123.9mm (O)
Flange thickness: 17.5mm (C)
Flange hub height: 26.9mm (Y)
Pitch Circle Diameter (PCD): 88.9mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 4 off 19.0mm diameter
Bore Diameter: 34.5mm (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
DN25 (1" NB) ASA300 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 123.9mm (O)
Flange thickness: 17.5mm (C)
Flange hub height: 26.9mm (Y)
Pitch Circle Diameter (PCD): 88.9mm (K)
Raised Face Height: 1.5mm (RF)
Bolt Holes: 4 off 19.0mm diameter
Bore Diameter: 34.5mm (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
DN25 (1" NB) ASA600 RF BOSSED SLIP ON FLANGE SS 304
Flange outside diameter: 123.9mm (O)
Flange thickness: 17.5mm (C)
Flange hub height: 26.9mm (Y)
Pitch Circle Diameter (PCD): 88.9mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 4 off 19.0mm diameter
Bore Diameter: 34.5mm (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
DN25 (1" NB) ASA600 RF BOSSED SLIP ON FLANGE SS 316
Flange outside diameter: 123.9mm (O)
Flange thickness: 17.5mm (C)
Flange hub height: 26.9mm (Y)
Pitch Circle Diameter (PCD): 88.9mm (K)
Raised Face Height: 6.3mm (RF)
Bolt Holes: 4 off 19.0mm diameter
Bore Diameter: 34.5mm (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
DN25 (1" NB) BSP 150# (FXF) CONE SEAT UNION SS 316
Thread: 1" BSPP Female x Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 27.65 27.65 GBP
DN25 (1" NB) BSP 150# (FXF) ELBOW 45° SS 316
Thread: 1" BSPP Female x Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316
Elbow Angle: 45° (Degree)

Standards:
Nominal Bore, Threaded, Elbow, 45°, 45 Deg, Screwed, Low Pressure, 150 psi
£ 15.40 15.4 GBP
DN25 (1" NB) BSP 150# (FXF) ELBOW 90° SS 316
Thread: 1" BSPP Female x Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316
Elbow Angle: 90° (Degree)

Standards:
Nominal Bore, Threaded, Elbow, 90°, 90 Deg, Screwed, Low Pressure, 150 psi
£ 18.20 18.2 GBP
DN25 (1" NB) BSP 150# (MXF) CONE SEAT UNION SS 316
Thread: 1" BSPP Female x Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Male x Female, MF, MXF, Union, Threaded, Screwed, Street Union
£ 33.25 33.25 GBP
DN25 (1" NB) BSP 150# BARREL NIPPLE SS 316
Thread: 1" BSPT Male x Male
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 8.40 8.4 GBP
DN25 (1" NB) BSP 150# EQUAL FULL SOCKET SS 316
Thread: 1" BSP Female x Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 13.30 13.3 GBP
DN25 (1" NB) BSP 150# EQUAL TEE SS 316
Thread: 1" BSPP Female x Female x Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless Steel
Grade: 316
£ 20.30 20.3 GBP
DN25 (1" NB) BSP 150# HALF SOCKET SS 316
Thread: 1" BSP Female x Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 11.34 11.34 GBP
DN25 (1" NB) BSP 150# HEX CAP SS 316
Thread: 1" BSPP Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Female Cap, Termination, Blanking Cap, Cap End
£ 11.20 11.2 GBP
DN25 (1" NB) BSP 150# HEX HEAD PLUG SS 316
Thread: 1" BSPT Male
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Male Plug, Termination, Blanking Plug, Stop end
£ 8.75 8.75 GBP
DN25 (1" NB) BSP 150# ROUND CAP SS 316
Thread: 1" BSPP Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Female Cap, Termination, Blanking Cap, Cap End
£ 8.75 8.75 GBP
DN25 (1" NB) BSP 150# SQUARE HEAD PLUG SS 316
Thread: 1" BSPT Male
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Male Plug, Termination, Blanking Plug, Stop end
£ 8.75 8.75 GBP
DN25 (1" NB) BSPP (FXF) 1PC RB BALL VALVE LEVER OP. SS 316
Threaded: 1" BSPP Female
Suits an outside diameter (OD) of: 33.4mm
Construction: 1 Piece
Body Material: 316 Stainless
Thread: BSP Parallel Thread Female x Female
Bore: Reduced 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
£ 46.55 46.55 GBP
DN25 (1" NB) BSPP (FXF) 2PC FB BALL VALVE LEVER OP. SS 316
Threaded: 1" BSPP Female
Suits an outside diameter (OD) of: 33.4mm
Construction: 2 Piece
Body Material: 316 Stainless
Thread: BSP Parallel Thread Female x 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
£ 66.50 66.5 GBP