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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

DN25 (1" NB) NPT 3000# HEXAGON NIPPLE SS 316
Threaded: 1" NPT Male Female
Suits an outside diameter (OD) of: 33.4mm
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
£ 89.95 89.95 GBP
DN25 (1" NB) NPT 3000# ROUND CAP END SS 316
Threaded: 3/4" NPT Female Female
Suits an outside diameter (OD) of: 33.4mm
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
£ 47.88 47.88 GBP
DN25 (1" NB) NPT 3PC (FXF) FB BALL VALVE LEVER OP. SS 316
Threaded: 1" NPT Female
Suits an outside diameter (OD) of: 33.4mm
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
£ 101.71 101.71 GBP
DN25 (1" NB) NPT SCH80 PIPE NIPPLE T.B.E (2" LONG) SS 316
Threaded: 3/4" NPT Female
Suits an outside diameter (OD) of: 33.4mm
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
£ 89.95 89.95 GBP
DN25 (1" NB) NPT SCH80 PIPE NIPPLE T.B.E (3" LONG) SS 316
Threaded: 3/4" NPT Female
Suits an outside diameter (OD) of: 33.4mm
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
£ 96.95 96.95 GBP
DN25 (1" NB) NPT SCH80 PIPE NIPPLE T.B.E (4" LONG) SS 316
Threaded: 3/4" NPT Female
Suits an outside diameter (OD) of: 33.4mm
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
£ 104.65 104.65 GBP
DN25 (1" NB) PN10/PN16/PN25/PN40 RF BSPP THREADED FLANGE SS 304
Flange outside diameter: 115mm (D)
Flange thickness: 18mm (C2)
Pitch Circle Diameter (PCD): 85mm (K)
Flange hub height: 28mm (H1)
Raised Face Height: 2mm (f1)
BSPP Thread: 1"
Bolt Holes: 4 off M12 bolts
Material: Stainless Steel
Grade: 304

Standards: EN 1092-1
Pressure Rating: PN16
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Threaded Flange, Screwed Flange, BSPP, Stainless Steel, SS Steel, Bossed, PN16
Contact us for pricing 0.0 GBP
DN25 (1" NB) PN10/PN16/PN25/PN40 RF BSPP THREADED FLANGE SS 316
Flange outside diameter: 115mm (D)
Flange thickness: 18mm (C2)
Pitch Circle Diameter (PCD): 85mm (K)
Flange hub height: 28mm (H1)
Raised Face Height: 2mm (f1)
BSPP Thread: 1"
Bolt Holes: 4 off M12 bolts
Material: Stainless Steel
Grade: 316

Standards: EN 1092-1
Pressure Rating: PN16
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Threaded Flange, Screwed Flange, BSPP, Stainless Steel, SS Steel, Bossed, PN16
Contact us for pricing 0.0 GBP
DN25 (1" NB) PN16 RF BLANK FLANGE SS 316
Blanking / Blind Flange
Material: Stainless
Grade: 316
Standards: EN1092-1
Flange Face: Raised
Bolt Holes: 4 off to suit M12 Bolts
PCD: 85mm
Flange Diameter: 115mm
Flange Thickness: 16mm
Certification Available: 3.1 BS EN 10204 Material Certification
£ 113.40 113.4 GBP
DN25 (1" NB) PN16 RF SLIP ON PLATE FLANGE SS 316
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316
Standards: EN1092-1
Flange Face: Raised
Bolt Holes: 4 off to suit M12 Bolts
PCD: 85mm
Flange Diameter: 115mm
Flange Thickness: 16mm
Certification Available: 3.1 BS EN 10204 Material Certification
£ 81.90 81.9 GBP
DN25 (1" NB) PN16/40 FLANGED 2PC LEVER OP. BALL VALVE LEVER OP SS 316
Flanged both ends: 1" PN16
Suits an outside diameter (OD) of: 33.4mm
PCD: 85mm Ø (PN10, PN16, PN40)
Face to face: 125mm
Construction: 2 Piece
Body Material: CF8/CF8M (316) Stainless
Bore: Full Bore
Internals: PTFE Seals
Investment Casting
Blowout proof stem
£ 490.14 490.14 GBP
DN25 (1" NB) PN6 RF BLIND FLANGE SS 304
Flange overall diameter: 100mm (D)
PCD: 75mm (K)
Bolt Holes: 4 off 11mm diameter (L)
Flange Thickness: 14mm (C4)
Diameter of Raised Face (RF): 62mm (D1)
Height of Raised Face: 2mm (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
£ 47.11 47.11 GBP
DN25 (1" NB) PN6 RF BLIND FLANGE SS 316
Flange overall diameter: 100mm (D)
PCD: 75mm (K)
Bolt Holes: 4 off 11mm diameter (L)
Flange Thickness: 14mm (C4)
Diameter of Raised Face (RF): 62mm (D1)
Height of Raised Face: 2mm (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
£ 54.67 54.67 GBP
DN25 (1" NB) PN6 RF BSPP THREADED FLANGE SS 304
Flange outside diameter: 100mm (D)
Flange thickness: 14mm (C2)
Pitch Circle Diameter (PCD): 75mm (K)
Flange hub height: 24mm (H1)
Raised Face Height: 2mm (f1)
BSPP Thread: 1"
Bolt Holes: 4 off M10 bolts
Material: Stainless Steel
Grade: 304

Standards: EN 1092-1
Pressure Rating: PN6
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Threaded Flange, Screwed Flange, BSPP, Stainless Steel, SS Steel, Bossed, PN6
Contact us for pricing 0.0 GBP
DN25 (1" NB) PN6 RF BSPP THREADED FLANGE SS 316
Flange outside diameter: 100mm (D)
Flange thickness: 14mm (C2)
Pitch Circle Diameter (PCD): 75mm (K)
Flange hub height: 24mm (H1)
Raised Face Height: 2mm (f1)
BSPP Thread: 1"
Bolt Holes: 4 off M10 bolts
Material: Stainless Steel
Grade: 316

Standards: EN 1092-1
Pressure Rating: PN6
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Threaded Flange, Screwed Flange, BSPP, Stainless Steel, SS Steel, Bossed, PN6
Contact us for pricing 0.0 GBP
DN25 (1" NB) PN6 RF SLIP ON PLATE FLANGE SS 304
Flange inside diameter of: 34.5mm (B1)
Flange overall diameter: 100mm (D)
PCD: 75mm (K)
Bolt Holes: 4 off 11mm diameter (L)
Flange Thickness: 14mm (C1)
Diameter of Raised Face (RF): 62mm (D1)
Height of raised face: 2mm (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
Contact us for pricing 0.0 GBP
DN25 (1" NB) PN6 RF SLIP ON PLATE FLANGE SS 316
Flange inside diameter of: 34.5mm (B1)
Flange overall diameter: 100mm (D)
PCD: 75mm (K)
Bolt Holes: 4 off 11mm diameter (L)
Flange Thickness: 14mm (C1)
Diameter of Raised Face (RF): 62mm (D1)
Height of raised face: 2mm (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
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 10S A403 SEAMLESS EQUAL TEE SS 304
Outside Diameter (OD): 33.4mm
Wall Thickness: 3.38mm
Centre to End: 38.1mm
Schedule: 10S
Weight: 0.35kg

Material: Stainless Steel
Material Grade: ASTM A403

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Equal Tee, LR, Welding Tee, Weldable
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 10S A403 SEAMLESS EQUAL TEE SS 316
Outside Diameter (OD): 33.4mm
Wall Thickness: 3.38mm
Centre to End: 38.1mm
Schedule: 10S
Weight: 0.35kg

Material: Stainless Steel
Material Grade: ASTM A403

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Equal Tee, LR, Welding Tee, Weldable
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 10S A403 SEAMLESS LONG RADIUS 45 DEG ELBOW SS 304
Outside Diameter (OD): 33.4mm
Wall Thickness: 2.77mm

Schedule: A403 Seamless
Weight: 0.1kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 45°, LR, Bend, Weldable
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 10S A403 SEAMLESS LONG RADIUS 45 DEG ELBOW SS 316
Outside Diameter (OD): 33.4mm
Wall Thickness: 2.77mm

Schedule: A403 Seamless
Weight: 0.1kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 45°, LR, Bend, Weldable
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 10S A403 SEAMLESS LONG RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 33.4mm
Wall Thickness: 2.77mm
Centre to Face: 38.1mm
Schedule: A403 Seamless
Weight: 0.15kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 90°, LR, Bend, Weldable
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 10S A403 SEAMLESS LONG RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 33.4mm
Wall Thickness: 2.77mm
Centre to Face: 38.1mm
Schedule: A403 Seamless
Weight: 0.15kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 90°, LR, Bend, Weldable
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 10S A403 SEAMLESS SHORT RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 33.4mm
Wall Thickness: 2.77mm
Centre to Face: 25.4mm
Schedule: A403 Seamless
Weight: 0.1kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 10S A403 SEAMLESS SHORT RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 33.4mm
Wall Thickness: 2.77mm
Centre to Face: 25.4mm
Schedule: A403 Seamless
Weight: 0.1kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 10S A403 WELDED EQUAL TEE SS 304
Outside Diameter (OD): 33.4mm
Wall Thickness: 3.38mm
Centre to End: 38.1mm
Schedule: 10S
Weight: 0.35kg

Material: Stainless Steel
Material Grade: ASTM A403

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Equal Tee, LR, Welding Tee, Weldable
£ 26.46 26.46 GBP
DN25 (1" NB) SCHEDULE 10S A403 WELDED EQUAL TEE SS 316
Outside Diameter (OD): 33.4mm
Wall Thickness: 3.38mm
Centre to End: 38.1mm
Schedule: 10S
Weight: 0.35kg

Material: Stainless Steel
Material Grade: ASTM A403

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Equal Tee, LR, Welding Tee, Weldable
£ 32.27 32.27 GBP
DN25 (1" NB) SCHEDULE 10S A403 WELDED LONG RADIUS 45 DEG ELBOW SS 304
Outside Diameter (OD): 33.4mm
Wall Thickness: 2.77mm

Schedule: A403 Welded
Weight: 0.1kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 45°, LR, Bend, Weldable
£ 18.69 18.69 GBP
DN25 (1" NB) SCHEDULE 10S A403 WELDED LONG RADIUS 45 DEG ELBOW SS 316
Outside Diameter (OD): 33.4mm
Wall Thickness: 2.77mm

Schedule: A403 Welded
Weight: 0.1kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 45°, LR, Bend, Weldable
£ 12.81 12.81 GBP
DN25 (1" NB) SCHEDULE 10S A403 WELDED LONG RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 33.4mm
Wall Thickness: 2.77mm
Centre to Face: 38.1mm
Schedule: A403 Welded
Weight: 0.15kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 90°, LR, Bend, Weldable
£ 12.74 12.74 GBP
DN25 (1" NB) SCHEDULE 10S A403 WELDED LONG RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 33.4mm
Wall Thickness: 2.77mm
Centre to Face: 38.1mm
Schedule: A403 Welded
Weight: 0.15kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Long Radius, 90°, LR, Bend, Weldable
£ 15.68 15.68 GBP
DN25 (1" NB) SCHEDULE 10S A403 WELDED SHORT RADIUS 90 DEG ELBOW SS 304
Outside Diameter (OD): 33.4mm
Wall Thickness: 2.77mm
Centre to Face: 25.4mm
Schedule: A403 Welded
Weight: 0.1kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
£ 18.69 18.69 GBP
DN25 (1" NB) SCHEDULE 10S A403 WELDED SHORT RADIUS 90 DEG ELBOW SS 316
Outside Diameter (OD): 33.4mm
Wall Thickness: 2.77mm
Centre to Face: 25.4mm
Schedule: A403 Welded
Weight: 0.1kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Elbow, Short Radius, 90°, SR, Bend, Weldable
£ 12.81 12.81 GBP
DN25 (1" NB) SCHEDULE 10S ASA150 WELD NECK FLANGE SS 304
Outside diameter (O): 107.9mm
Flange thickness (C): 14.2mm
Hub length (X): 49.2mm
Neck height (A): 33.5mm
Pitch circle diameter (K): 79.2mm
Hub base diameter (Y): 55.6mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 50.8mm
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
£ 42.63 42.63 GBP
DN25 (1" NB) SCHEDULE 10S ASA150 WELD NECK FLANGE SS 316
Outside diameter (O): 107.9mm
Flange thickness (C): 14.2mm
Hub length (X): 49.2mm
Neck height (A): 33.5mm
Pitch circle diameter (K): 79.2mm
Hub base diameter (Y): 55.6mm
Raised face height (RF): 15.5mm
Raised face diameter (R): 50.8mm
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
£ 69.51 69.51 GBP
DN25 (1" NB) SCHEDULE 10s STAINLESS SEAMLESS PIPE 304
Outside Diameter (OD): 33.4mm
Wall Thickness (WT): 2.77mm (Sch10)
Material: Stainless
Grade: 304
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 2.71
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.

Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 10s STAINLESS SEAMLESS PIPE 316
Outside Diameter (OD): 33.4mm
Wall Thickness (WT): 2.77mm (Sch10)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 2.71
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.

Contact us for pricing 0.0 GBP
DN25 (1" NB) SCHEDULE 10s STAINLESS WELDED PIPE 304
Outside Diameter (OD): 33.4mm
Wall Thickness (WT): 2.77mm (Sch10)
Material: Stainless
Grade: 304
Standards: ASTM A312
Random Length: 6 meters
Weight Per Meter: 2.71
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.

£ 47.60 47.6 GBP
DN25 (1" NB) SCHEDULE 10s STAINLESS WELDED PIPE 316
Outside Diameter (OD): 33.4mm
Wall Thickness (WT): 2.77mm (Sch10)
Material: Stainless
Grade: 316
Standards: ASTM A312
Standard Length: 6 meters
Weight Per Meter: 2.71
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.

£ 71.96 71.96 GBP
DN25 (1" NB) SCHEDULE 10s WELDED ELBOW 45° SS 304
Outside Diameter (OD): 33.4mm
Wall Thickness (WT): 2.77mm
Material: Stainless
Grade: 304
Standards: ANSI B16.9
Radius: 1.5D
Angle: 45 Degree
Construction: Welded
Certification Available: 3.1 BS EN 10204 Material Certification
£ 10.50 10.5 GBP