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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

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

Part of our Flanges and Flanged Connections Range
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

Part of our Flanges and Flanged Connections Range
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

Part of our Flanges and Flanged Connections Range
£ 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

Part of our Flanges and Flanged Connections Range
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

Part of our Flanges and Flanged Connections Range
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

Part of our Flanges and Flanged Connections Range
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

Part of our Flanges and Flanged Connections Range
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

Part of our Isolation and Valves Range
£ 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


Part of our Isolation and Valves Range
£ 66.50 66.5 GBP
DN25 (1" NB) BSPP 3PC (FXF) FB BALL VALVE LEVER OP. SS 316
Threaded: 1" BSPP Female
Suits an outside diameter (OD) of: 33.4mm
Construction: 3 Piece
Body Material: 316 Stainless
Connection: BSP Parallel 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

Part of our Isolation and Valves Range
£ 101.01 101.01 GBP
DN25 (1" NB) BSPP FEMALE 150# X 25.4MM HOSE TAIL 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 Hose Tail, Hose Adaptor, Hose Connector, Barb, Hose Push in Fitting
£ 32.20 32.2 GBP
DN25 (1" NB) BSPP PN16 BOSSED THREADED FLANGE SS 316
Suits an outside diameter (OD) of: 33.4mm
Thread Type: BSP Parallel
Material: Stainless
Grade: 316
Standards: PN10/16/25/40 - 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

Part of our Flanges and Flanged Connections Range
£ 140.70 140.7 GBP
DN25 (1" NB) BSPP PN6 BOSSED THREADED FLANGE SS 316/L
Suits an outside diameter (OD) of: 33.4mm
Thread Type: BSP Parallel
Material: Stainless
Grade: 316/L
Standards: PN6 - EN1092-1
Flange Face: Raised
Bolt Holes: 4 off to suit M12 Bolts
PCD: 75mm
Flange Diameter: 100mm
Flange Thickness: 14mm
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Threaded, Screwed Flange, Tapped, BSPP Parallel, Stainless steel

Part of our Flanges and Flanged Connections Range
£ 52.78 52.78 GBP
DN25 (1" NB) BSPT (FXF) 2PC FB BALL VALVE LEVER OP. SS 316
Threaded: 1" BSPT Female
Suits an outside diameter (OD) of: 33.4mm
Construction: 2 Piece
Body Material: 316 Stainless
Thread: BSP Taper 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


Part of our Isolation and Valves Range
£ 76.86 76.86 GBP
DN25 (1" NB) BSPT 3000# EQUAL COUPLING SS 316
Threaded: 3/4" BSPT 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
£ 76.02 76.02 GBP
DN25 (1" NB) BSPT 3000# EQUAL TEE SS 316
Threaded: 3/4" BSPT 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
£ 219.66 219.66 GBP
DN25 (1" NB) BSPT 3000# FXF ELBOW 45° SS 316
Threaded: ¾" BSPT 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
£ 148.89 148.89 GBP
DN25 (1" NB) BSPT 3000# FXF ELBOW 90° SS 316
Threaded: ¾" BSPT 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
£ 173.81 173.81 GBP
DN25 (1" NB) BSPT 3000# FXF UNION SS 316
Threaded: 3/4" BSPT 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
£ 169.47 169.47 GBP
DN25 (1" NB) BSPT 3000# HALF COUPLING SS 316
Threaded: 3/4" BSPT 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 Half Socket, Half Coupling, Stainless Steel
£ 44.87 44.87 GBP
DN25 (1" NB) BSPT 3000# HEX HEAD PLUG END SS 316
Threaded: 3/4" BSPT Male Male
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
£ 39.62 39.62 GBP
DN25 (1" NB) BSPT 3000# HEXAGON NIPPLE SS 316
Threaded: 1" BSPT 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) BSPT 3000# ROUND CAP END SS 316
Threaded: 3/4" BSPT 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) BSPT 3PC (FXF) FB BALL VALVE LEVER OP. SS 316
Threaded: 1" BSPT Female
Suits an outside diameter (OD) of: 33.4mm
Construction: 3 Piece
Body Material: 316 Stainless
Connection: BSP Taper 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

Part of our Isolation and Valves Range
£ 101.71 101.71 GBP
DN25 (1" NB) BSPT MALE 150# X 25.4MM HOSE TAIL 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:
Female Hose Tail, Hose Adaptor, Hose Connector, Barb, Hose Push in Fitting
£ 18.20 18.2 GBP
DN25 (1" NB) BSPT SCH80 PIPE NIPPLE T.B.E (2" LONG) SS 316
Threaded: 3/4" BSPT 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 TBE, Pipe Nipple, Stainless Steel
£ 89.95 89.95 GBP
DN25 (1" NB) BSPT SCH80 PIPE NIPPLE T.B.E (3" LONG) SS 316
Threaded: 3/4" BSPT 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 TBE, Pipe Nipple, Stainless Steel
£ 96.95 96.95 GBP
DN25 (1" NB) BSPT SCH80 PIPE NIPPLE T.B.E (4" LONG) SS 316
Threaded: 3/4" BSPT 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 TBE, Pipe Nipple, Stainless Steel
£ 104.65 104.65 GBP