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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

DN100 (4" NB) BSP 150# (FXF) ELBOW 45° SS 316
Thread: 4" BSPP Female x Female
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316
Elbow Angle: 45° (Degree)

Standards:
Nominal Bore, Threaded, Elbow, 45°, 45 Deg, Screwed, Low Pressure, 150 psi
£ 154.28 154.28 GBP
DN100 (4" NB) BSP 150# (FXF) ELBOW 90° SS 316
Thread: 4" BSPP Female x Female
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316
Elbow Angle: 90° (Degree)

Standards:
Nominal Bore, Threaded, Elbow, 90°, 90 Deg, Screwed, Low Pressure, 150 psi
£ 206.57 206.57 GBP
DN100 (4" NB) BSP 150# (MXF) ELBOW 90° SS 316
Side One Thread: 4" BSPT Male
Side Two Thread: 4" BSPP Female
Both Sides Suit an outside diameter (OD) of: 114.3mm
Male x Female Elbow, Also known as a 'Street Elbow '
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 260.68 260.68 GBP
DN100 (4" NB) BSP 150# BARREL NIPPLE SS 316
Thread: 4" BSPT Male x Male
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316
£ 93.10 93.1 GBP
DN100 (4" NB) BSP 150# EQUAL FULL SOCKET SS 316
Thread: 4" BSP Female x Female
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316
£ 89.11 89.11 GBP
DN100 (4" NB) BSP 150# EQUAL TEE SS 316
Thread: 4" BSPP Female x Female x Female
Suits an outside diameter of 114.3mm

Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Equal, Tee, Tee Piece, Screwed, Low Pressure, 150 psi
£ 266.00 266.0 GBP
DN100 (4" NB) BSP 150# HALF SOCKET SS 316
Thread: 4" BSP Female x Female
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316
£ 65.94 65.94 GBP
DN100 (4" NB) BSP 150# HEX CAP SS 316
Thread: 4" BSPP Female
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Female Cap, Termination, Blanking Cap, Cap End
£ 164.43 164.43 GBP
DN100 (4" NB) BSP 150# HEX HEAD PLUG SS 316
Thread: 4" BSPT Male
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Male Plug, Termination, Blanking Plug, Stop end
£ 112.42 112.42 GBP
DN100 (4" NB) BSP 150# HEX NIPPLE SS 316
Thread: 4" BSPT Male x Male
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 101.08 101.08 GBP
DN100 (4" NB) BSP 150# ROUND CAP SS 316
Thread: 4" BSPP Female
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Female Cap, Termination, Blanking Cap, Cap End
£ 123.06 123.06 GBP
DN100 (4" NB) BSP 150# SQUARE HEAD PLUG SS 316
Thread: 4" BSPT Male
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Male Plug, Termination, Blanking Plug, Stop end
£ 112.42 112.42 GBP
DN100 (4" NB) BSP 150# WELD NIPPLE SS 316
Side One Thread: 4" BSPT Male
Side One Suits an outside diameter (OD) of: 114.3mm
Side Two Plain: 4" Buttweld
Side Two Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi
£ 77.14 77.14 GBP
DN100 (4" NB) BSPP (FXF) 2PC FB BALL VALVE LEVER OP. SS 316
Threaded: 4" BSPP Female
Suits an outside diameter (OD) of: 114.3mm
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
£ 1,699.67 1699.67 GBP
DN100 (4" NB) BSPP 3PC (FXF) FB BALL VALVE LEVER OP. SS 316
Threaded: 4" BSPP Female
Suits an outside diameter (OD) of: 114.3mm
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
£ 2,008.02 2008.02 GBP
DN100 (4" NB) BSPT (FXF) 2PC FB BALL VALVE LEVER OP. SS 316
Threaded: 4" BSPT Female
Suits an outside diameter (OD) of: 114.3mm
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
£ 1,699.67 1699.67 GBP
DN100 (4" NB) BSPT 3000# EQUAL TEE SS 316
Thread: 4" BSPT Female
Suits an outside diameter (OD) of: 114.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Equal Tee, Stainless Steel
Contact us for pricing 0.0 GBP
DN100 (4" NB) BSPT 3000# FXF ELBOW 90° SS 316
Thread: 4" BSPT Female
Suits an outside diameter (OD) of: 114.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Elbow, FXF, 90°, 90 Degree, Stainless Steel
Contact us for pricing 0.0 GBP
DN100 (4" NB) BSPT 3PC (FXF) FB BALL VALVE LEVER OP. SS 316
Threaded: 4" BSPT Female
Suits an outside diameter (OD) of: 114.3mm
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
£ 1,972.04 1972.04 GBP
DN100 (4" NB) BSPT MALE 150# X 101.6MM HOSE TAIL SS 316
Thread: 4" BSPT Male
Suits an outside diameter (OD) of: 114.3mm
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
£ 226.10 226.1 GBP
DN100 (4" NB) BSPT SCH80 PIPE NIPPLE T.B.E (4" LONG) SS 316
Thread: 4" BSPT
Suits an outside diameter (OD) of: 114.3mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Pipe Nipple, TBE, , Stainless Steel
Contact us for pricing 0.0 GBP
DN100 (4" NB) BUTT WELD 3PC FB BALL VALVE LEVER OP. SS 316
Threaded: 4" NB Buttweld (BW)
Suits an outside diameter (OD) of: 114.3mm
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
£ 2,040.71 2040.71 GBP
DN100 (4" NB) NPT (FXF) 2PC FB BALL VALVE LEVER OP. SS 316
Threaded: 4" NPT Female
Suits an outside diameter (OD) of: 114.3mm
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
£ 1,699.67 1699.67 GBP
DN100 (4" NB) NPT 150# (FXF) CONE SEAT UNION SS 316
Thread: 4" NPT Female x Female
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316
£ 403.48 403.48 GBP
DN100 (4" NB) NPT 150# (FXF) ELBOW 45° SS 316
Thread: 4" NPT Female x Female
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316
Elbow Angle: 45° (Degree)

Standards:
Nominal Bore, Threaded, Elbow, 45°, 45 Deg, Screwed, Low Pressure, 150 psi
£ 267.54 267.54 GBP
DN100 (4" NB) NPT 150# (FXF) ELBOW 90° SS 316
Thread: 4" NPT Female x Female
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316
Elbow Angle: 90° (Degree)

Standards:
Nominal Bore, Threaded, Elbow, 90°, 90 Deg, Screwed, Low Pressure, 150 psi
£ 406.77 406.77 GBP
DN100 (4" NB) NPT 150# BARREL NIPPLE SS 316
Thread: 4" NPT Male x Male
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316
£ 177.10 177.1 GBP
DN100 (4" NB) NPT 150# EQUAL FULL SOCKET SS 316
Thread: 4" NPT Female x Female
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316
£ 298.27 298.27 GBP
DN100 (4" NB) NPT 150# EQUAL TEE SS 316
Thread: 4" NPT Female x Female x Female
Suits an outside diameter of 114.3mm

Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Equal, Tee, Tee Piece, Screwed, Low Pressure, 150 psi
£ 466.34 466.34 GBP
DN100 (4" NB) NPT 150# HEX CAP SS 316
Thread: 4" NPT Female
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Female Cap, Termination, Blanking Cap, Cap End
£ 222.11 222.11 GBP
DN100 (4" NB) NPT 150# HEX HEAD PLUG SS 316
Thread: 4" NPT Male
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Male Plug, Termination, Blanking Plug, Stop end
£ 171.85 171.85 GBP
DN100 (4" NB) NPT 150# ROUND CAP SS 316
Thread: 4" NPT Female
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Female Cap, Termination, Blanking Cap, Cap End
£ 154.56 154.56 GBP
DN100 (4" NB) NPT 150# SQUARE HEAD PLUG SS 316
Thread: 4" NPT Male
Suits an outside diameter (OD) of: 114.3mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Male Plug, Termination, Blanking Plug, Stop end
£ 138.39 138.39 GBP
DN100 (4" NB) NPT SCH80 PIPE NIPPLE T.B.E (4" LONG) SS 316
Thread: 4" NPT
Suits an outside diameter (OD) of: 114.3mm
Material: Forged Stainless Steel
Grade: 304
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Pipe Nipple, TBE, , Stainless Steel
Contact us for pricing 0.0 GBP
DN100 (4" NB) PN10 / PN16 RF BLIND FLANGE SS 304
Flange OD (D): 220mm
Drilling (No. x Bolt Hole x L): 8 x M16 x 18mm
Pitch circle diameter (K): 180mm
Flange thickness (C1): 22mm
Raised face diameter (D1): 148mm
Raised face height (F1): 3mm
Material: 304
Rating: PN16
Type: Blind flange (EN1092-1 Type 05)

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
£ 196.98 196.98 GBP
DN100 (4" NB) PN10 / PN16 RF BLIND FLANGE SS 316
Flange OD (D): 220mm
Drilling (No. x Bolt Hole x L): 8 x M16 x 18mm
Pitch circle diameter (K): 180mm
Flange thickness (C1): 22mm
Raised face diameter (D1): 148mm
Raised face height (F1): 3mm
Material: 316
Rating: PN16
Type: Blind flange (EN1092-1 Type 05)

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
£ 296.94 296.94 GBP
DN100 (4" NB) PN16 FLANGED 2PC LEVER OP. BALL VALVE LEVER OP SS 316
Flanged both ends: 4" PN16
Suits an outside diameter (OD) of: 114.3mm
PCD: 180mm Ø (PN16)
Face to face: 190mm
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
£ 2,650.13 2650.13 GBP
DN100 (4" NB) PN16 RF BLANK FLANGE D&T 15NB (1/2" NB) BSPP SS 316
Drilled and Tapped Blanking / Blind Flange
Material: Stainless
Grade: 316
Standards: PN16 EN1092-1
Flange Face: Raised
Bolt Holes: 8 off to suit M16 Bolts
PCD: 180mm
Flange Diameter: 220mm
Flange Thickness: 20mm
Certification Available: 3.1 BS EN 10204 Material Certification

Part of our Flanges and Flanged Connections Range
£ 296.17 296.17 GBP
DN100 (4" NB) PN16 RF BSPP THREADED FLANGE SS 304
Flange outside diameter: 220mm (D)
Flange thickness: 20mm (C2)
Pitch Circle Diameter (PCD): 180mm (K)
Flange hub height: 34mm (H1)
Raised Face Height: 3mm (f1)
BSPP Thread: 4"
Bolt Holes: 8 off M16 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
DN100 (4" NB) PN16 RF BSPP THREADED FLANGE SS 316
Flange outside diameter: 220mm (D)
Flange thickness: 20mm (C2)
Pitch Circle Diameter (PCD): 180mm (K)
Flange hub height: 34mm (H1)
Raised Face Height: 3mm (f1)
BSPP Thread: 4"
Bolt Holes: 8 off M16 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