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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

DN8 (1/4" NB) SOCKET WELD 3PC FB BALL VALVE LEVER OP. SS 316
Threaded: 1/4" NB Socket Weld (SW)
Suits an outside diameter (OD) of: 13.72mm
Construction: 3 Piece
Body Material: 316 Stainless
Connection: Socket 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
£ 44.59 44.59 GBP
DN8 (1/4" NB) SW 150# ELBOW 45° SS 316
Thread: 1/4" SW (Socket Weld)
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
Elbow Angle: 45° (Degree)

Standards:
Nominal Bore, Socket Weld, Elbow, 45°, 45 Deg, Weldable, Low Pressure, 150 psi
£ 9.45 9.45 GBP
DN8 (1/4" NB) SW 150# ELBOW 90° SS 316
Thread: 1/4" SW (Socket Weld)
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
Elbow Angle: 90° (Degree)

Standards:
Nominal Bore, Socket Weld, Elbow, 90°, 90 Deg, Weldable, Low Pressure, 150 psi
£ 5.88 5.88 GBP
DN8 (1/4" NB) SW 150# (FXF) CONE SEAT UNION SS 316
Thread: 1/4" SW (Socket Weld)
Suits an outside diameter (OD) of: 13.7mm
Material: Stainless
Grade: 316
£ 17.36 17.36 GBP
DN8 (1/4" NB) SW 150# EQUAL TEE SS 316
Thread: 1/4" SW (Socket Weld)
Suits an outside diameter of 13.7mm

Material: Stainless
Grade: 316

Standards:
Nominal Bore, SW (Socket Weld), Equal, Tee, Tee Piece, Weldable, Low Pressure, 150 psi
£ 13.30 13.3 GBP
DN8 (1/4" NB) SW 3000# EQUAL COUPLING SS 316
Connection: 1/4" SW
Suits an outside diameter (OD) of: 13.79mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Coupling, Socket, Straight, Connector, Stainless Steel
£ 16.10 16.1 GBP
DN8 (1/4" NB) SW 3000# EQUAL TEE SS 316
Connection: 1/4" SW (Socket Weld)
Suits an outside diameter (OD) of: 13.79mm
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
£ 42.49 42.49 GBP
DN8 (1/4" NB) SW 3000# HALF COUPLING SS 316
Connection: 1/4" SW (Socket Weld)
Suits an outside diameter (OD) of: 13.79mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Half Coupling, Half Socket, Straight, Connector, Stainless Steel
£ 14.56 14.56 GBP
DN8 (1/4" NB) SW 3000# ROUND CAP END SS 316
Connection: 1/4" SW (Socket Weld)
Suits an outside diameter (OD) of: 13.79mm
Material: Forged Stainless Steel
Grade: 316
Construction: Forged Stainless Steel
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Round Cap End, Blanking, Termination, Stainless Steel
£ 16.10 16.1 GBP
DN8 (¼" NB) BSPT 3000# FXF ELBOW 90° SS 316
Thread: ¼" BSPT Female
Suits an outside diameter (OD) of: 13.79mm
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
£ 37.38 37.38 GBP
DN8 (¼" NB) NPT 3000# FXF ELBOW 90° SS 316
Thread: ¼" NPT Female
Suits an outside diameter (OD) of: 13.79mm
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
£ 36.26 36.26 GBP
DN8 (¼" NB) SW 3000# FXF ELBOW 90° SS 316
Connection: ¼" SW (Socket Weld)
Suits an outside diameter (OD) of: 13.79mm
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
£ 31.92 31.92 GBP
DN8 X 6 (1/4" X 1/8" NB) BSPT REDUCING BUSH SS 316
Side 1 threaded: 1/4" BSPT Male
Side 1 suits an outside diameter (OD) of: 13.72mm
Side 2 threaded: 1/8" BSPT Female
Side 2 suits suits an outside diameter (OD) of: 10.29mm

Material: Forged Stainless Steel
Grade: 316

Standards:
BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97

Alternative terminology:
Forged Stainless Steel,Stainless Steel, Reducing Bush, Threaded, Screwed, , Fittings.
£ 17.85 17.85 GBP
DN8 X 6 (1/4" X 1/8" NB) NPT REDUCING BUSH SS 316
Side 1 threaded: 1/4" NPT Male
Side 1 suits an outside diameter (OD) of: 13.72mm
Side 2 threaded: 1/8" NPT Female
Side 2 suits suits an outside diameter (OD) of: 10.29mm

Material: Forged Stainless Steel
Grade: 316

Standards:
BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97

Alternative terminology:
Forged Stainless Steel,Stainless Steel, Reducing Bush, Threaded, Screwed, , Fittings.
£ 16.80 16.8 GBP
DN8 X 6 (1/4" X 1/8" NB) BSPT REDUCING SOCKET SS 316
Side 1 threaded: 1/4" BSPT Female
Suits 1 suits an outside diameter (OD) of: 13.72mm
Side 2 threaded: 1/8" BSPT Female
Side 2 suits suits an outside diameter (OD) of: 10.29mm

Material: Forged Stainless steel
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, 3000 psi (3K) High Pressure, Forged Stainless steel, BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97




Alternative terminology:
Reducer, Socket, Coupling, Reducing Socket, Coupling, Stainless Steel
Contact us for pricing 0.0 GBP
DN8 X 6 (1/4" X 1/8" NB) NPT REDUCING SOCKET SS 316
Side 1 threaded: 1/4" NPT Female
Suits 1 suits an outside diameter (OD) of: 13.72mm
Side 2 threaded: 1/8" NPT Female
Side 2 suits suits an outside diameter (OD) of: 10.29mm

Material: Forged Stainless steel
Grade: 316

Standards:
Nominal Bore, Threaded, Screwed, 3000 psi (3K) High Pressure, Forged Stainless steel, BS3799, ANSI B16.11 MSS SP-83, MSS SP-95, MSS SP-97




Alternative terminology:
Reducer, Socket, Coupling, Reducing Socket, Coupling, Stainless Steel
Contact us for pricing 0.0 GBP
DN8x6 (1/4" x 1/8" NB) BSP 150# REDUCING TEE SS 316
Thread: 1/4" BSPP Female x Female, 1/8" BSPP Female Branch
Suits main run OD 13.7mm, branch OD 10.3mm

Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Reducing Tee, Tee Piece, Screwed, Low Pressure, 150 psi
£ 10.92 10.92 GBP
20 X 20 X 1.5MM STAINLESS STEEL BOX SECTION DULL POLISHED GR. 304
20 x 20mm Stainless Steel Box Section
Wall Thickness: 1.5mm
Material: Stainless Steel
Grade: 304
Finish: Dull Polished (180 Grit Minimum)
Standard Length: 6 meter Random
Weight Per Meter: 1.39kg
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.
£ 31.50 31.5 GBP
25 X 25 X 1.5MM STAINLESS STEEL BOX SECTION DULL POLISHED GR. 304
25 x 25mm Stainless Steel Box Section
Wall Thickness: 1.5mm
Material: Stainless Steel
Grade: 304
Finish: Dull Polished (180 Grit Minimum)
Standard Length: 6 meter Random
Weight Per Meter: 1.14kg
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.
£ 32.90 32.9 GBP
25 X 25 X 2MM STAINLESS STEEL BOX SECTION DULL POLISHED GR. 304
25 x 25mm Stainless Steel Box Section
Wall Thickness: 2mm
Material: Stainless Steel
Grade: 304
Finish: Dull Polished (180 Grit Minimum)
Standard Length: 6 meter Random
Weight Per Meter: 1.42kg
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.
£ 63.84 63.84 GBP
40 X 40 X 1.5MM STAINLESS STEEL BOX SECTION DULL POLISHED GR. 304
40 x 40mm Stainless Steel Box Section
Wall Thickness: 1.5mm
Material: Stainless Steel
Grade: 304
Finish: Dull Polished (180 Grit Minimum)
Standard Length: 6 meter Random
Weight Per Meter: 1.8kg
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.
£ 53.20 53.2 GBP
40 X 40 X 2MM STAINLESS STEEL BOX SECTION DULL POLISHED GR. 304
40 x 40mm Stainless Steel Box Section
Wall Thickness: 2mm
Material: Stainless Steel
Grade: 304
Finish: Dull Polished (180 Grit Minimum)
Standard Length: 6 meter Random
Weight Per Meter: 2.32kg
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.
£ 69.16 69.16 GBP
40 X 40 X 3MM STAINLESS STEEL BOX SECTION DULL POLISHED GR. 304
40 x 40mm Stainless Steel Box Section
Wall Thickness: 3mm
Material: Stainless Steel
Grade: 304
Finish: Dull Polished (180 Grit Minimum)
Standard Length: 6 meter Random
Weight Per Meter: 3.33kg
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.
£ 82.74 82.74 GBP
50 X 50 X 1.5MM STAINLESS STEEL BOX SECTION DULL POLISHED GR. 304
50 x 50mm Stainless Steel Box Section
Wall Thickness: 1.5mm
Material: Stainless Steel
Grade: 304
Finish: Dull Polished (180 Grit Minimum)
Standard Length: 6 meter Random
Weight Per Meter: 2.26kg
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.
£ 46.13 46.13 GBP
50 X 50 X 2MM STAINLESS STEEL BOX SECTION DULL POLISHED GR. 304
50 x 50mm Stainless Steel Box Section
Wall Thickness: 2mm
Material: Stainless Steel
Grade: 304
Finish: Dull Polished (180 Grit Minimum)
Standard Length: 6 meter Random
Weight Per Meter: 2.91kg
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.
£ 86.24 86.24 GBP
50 X 50 X 3MM STAINLESS STEEL BOX SECTION DULL POLISHED GR. 304
50 x 50mm Stainless Steel Box Section
Wall Thickness: 3mm
Material: Stainless Steel
Grade: 304
Finish: Dull Polished (180 Grit Minimum)
Standard Length: 6 meter Random
Weight Per Meter: 4.47kg
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.
£ 94.50 94.5 GBP
80 X 40 X 3MM STAINLESS STEEL BOX SECTION DULL POLISHED GR. 304
80 x 40mm Stainless Steel Box Section
Wall Thickness: 3mm
Material: Stainless Steel
Grade: 304
Finish: Dull Polished (180 Grit Minimum)
Standard Length: 6 meter Random
Weight Per Meter: 3.8kg
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.
£ 118.58 118.58 GBP
80 X 80 X 2MM STAINLESS STEEL BOX SECTION DULL POLISHED GR. 304
80 x 80mm Stainless Steel Box Section
Wall Thickness: 2mm
Material: Stainless Steel
Grade: 304
Finish: Dull Polished (180 Grit Minimum)
Standard Length: 6 meter Random
Weight Per Meter: 6.55kg
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.
£ 117.25 117.25 GBP
80 X 80 X 3MM STAINLESS STEEL BOX SECTION DULL POLISHED GR. 304
80 x 80mm Stainless Steel Box Section
Wall Thickness: 3mm
Material: Stainless Steel
Grade: 304
Finish: Dull Polished (180 Grit Minimum)
Standard Length: 6 meter Random
Weight Per Meter: 6.97kg
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.
£ 138.32 138.32 GBP
DN 3 (1/8" NB) BSP 150# EQUAL FULL SOCKET SS 316
Thread: 1/8" BSP Female x Female
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
Contact us for pricing 0.0 GBP
DN 3 (1/8" NB) BSP 150# HALF SOCKET SS 316
Thread: 1/8" BSP Female x Female
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
£ 2.45 2.45 GBP
DN 3 (1/8" NB) BSP 150# HEX CAP SS 316
Thread: 1/8" BSPP Female
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi

Alternative terminology:
Female Cap, Termination, Blanking Cap, Cap End
£ 3.43 3.43 GBP
DN 3 (1/8" NB) BSP 150# HEX HEAD PLUG SS 316
Thread: 1/8" BSPT Male
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Male Plug, Termination, Blanking Plug, Stop end
£ 4.69 4.69 GBP
DN 3 (1/8" NB) BSP 150# ROUND CAP SS 316
Thread: 1/8" BSPP Female
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi

Alternative terminology:
Female Cap, Termination, Blanking Cap, Cap End
£ 2.80 2.8 GBP
DN 3 (1/8" NB) BSP 150# SQUARE HEAD PLUG SS 316
Thread: 1/8" BSPT Male
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Male Plug, Termination, Blanking Plug, Stop end
£ 4.69 4.69 GBP
DN 3 (1/8" NB) BSPT MALE 150# X 3.5MM HOSE TAIL SS 316
Thread: 1/8" BSPT Male
Suits an outside diameter (OD) of: 10.29mm
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
£ 7.98 7.98 GBP
DN 3 (1/8" NB) NPT 150# EQUAL FULL SOCKET SS 316
Thread: 1/8" NPT Female x Female
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
£ 6.23 6.23 GBP
DN 3 (1/8" NB) NPT 150# HALF SOCKET SS 316
Thread: 1/8" NPT Female x Female
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
£ 4.20 4.2 GBP
DN 3 (1/8" NB) NPT 150# HEX CAP SS 316
Thread: 1/8" NPT Female
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316
Standards:
Nominal Bore, Threaded, Screwed, Low Pressure, 150 psi

Alternative terminology:
Female Cap, Termination, Blanking Cap, Cap End
£ 3.43 3.43 GBP
DN 3 (1/8" NB) NPT 150# HEX HEAD PLUG SS 316
Thread: 1/8" NPT Male
Suits an outside diameter (OD) of: 10.29mm
Material: Stainless
Grade: 316

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

Alternative terminology:
Male Plug, Termination, Blanking Plug, Stop end
£ 4.83 4.83 GBP