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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) BUTT WELD 3PC FB BALL VALVE LEVER OP. SS 316
Threaded: 1" NB Buttweld (BW)
Suits an outside diameter (OD) of: 33.4mm
Construction: 3 Piece
Body Material: 316 Stainless
Connection: Butt 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

Part of our Isolation and Valves Range
£ 111.37 111.37 GBP
DN25 (1" NB) NPT (FXF) 1PC RB BALL VALVE LEVER OP. SS 316
Threaded: 1" NPT Female
Suits an outside diameter (OD) of: 33.4mm
Construction: 1 Piece
Body Material: 316 Stainless
Thread: NPT 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
£ 55.58 55.58 GBP
DN25 (1" NB) NPT (FXF) 2PC FB BALL VALVE LEVER OP. SS 316
Threaded: 1" NPT Female
Suits an outside diameter (OD) of: 33.4mm
Construction: 2 Piece
Body Material: 316 Stainless
Thread: NPT 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) NPT 150# (FXF) CONE SEAT UNION SS 316
Thread: 1" NPT Female x Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 54.46 54.46 GBP
DN25 (1" NB) NPT 150# (FXF) ELBOW 45° SS 316
Thread: 1" NPT 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
£ 29.33 29.33 GBP
DN25 (1" NB) NPT 150# (FXF) ELBOW 90° SS 316
Thread: 1" NPT 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
£ 25.20 25.2 GBP
DN25 (1" NB) NPT 150# BARREL NIPPLE SS 316
Thread: 1" NPT Male x Male
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 17.78 17.78 GBP
DN25 (1" NB) NPT 150# EQUAL FULL SOCKET SS 316
Thread: 1" NPT Female x Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 33.74 33.74 GBP
DN25 (1" NB) NPT 150# EQUAL TEE SS 316
Thread: 1" NPT Female x Female x Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless Steel
Grade: 316
£ 32.62 32.62 GBP
DN25 (1" NB) NPT 150# HALF SOCKET SS 316
Thread: 1" NPT Female x Female
Suits an outside diameter (OD) of: 33.4mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 24.71 24.71 GBP
DN25 (1" NB) NPT 150# HEX CAP SS 316
Thread: 1" NPT 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
£ 15.68 15.68 GBP
DN25 (1" NB) NPT 150# HEX HEAD PLUG SS 316
Thread: 1" NPT 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
£ 13.65 13.65 GBP
DN25 (1" NB) NPT 150# ROUND CAP SS 316
Thread: 1" NPT 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
£ 14.84 14.84 GBP
DN25 (1" NB) NPT 150# SQUARE HEAD PLUG SS 316
Thread: 1" NPT 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
£ 8.96 8.96 GBP
DN25 (1" NB) NPT 3000# EQUAL COUPLING SS 316
Threaded: 3/4" NPT 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) NPT 3000# EQUAL TEE 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
£ 211.19 211.19 GBP
DN25 (1" NB) NPT 3000# FXF ELBOW 45° SS 316
Threaded: ¾" 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
£ 148.89 148.89 GBP
DN25 (1" NB) NPT 3000# FXF ELBOW 90° SS 316
Threaded: ¾" 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
£ 173.81 173.81 GBP
DN25 (1" NB) NPT 3000# FXF UNION 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
£ 186.76 186.76 GBP
DN25 (1" NB) NPT 3000# HALF COUPLING SS 316
Threaded: 3/4" NPT 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) NPT 3000# HEX HEAD PLUG END SS 316
Threaded: 3/4" NPT 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) 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

Part of our Isolation and Valves Range
£ 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

Part of our Flanges and Flanged Connections Range
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

Part of our Flanges and Flanged Connections Range
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

Part of our Flanges and Flanged Connections Range
£ 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

Part of our Flanges and Flanged Connections Range
£ 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

Part of our Isolation and Valves Range

Part of our Flanges and Flanged Connections Range
£ 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

Part of our Flanges and Flanged Connections Range
£ 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

Part of our Flanges and Flanged Connections Range
£ 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

Part of our Flanges and Flanged Connections Range
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

Part of our Flanges and Flanged Connections Range
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

Part of our Flanges and Flanged Connections Range
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

Part of our Flanges and Flanged Connections Range
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