Skip to Content
  1. Products
  2. Stainless

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.

List 600
Sort By: Name (A-Z)

Stainless

DN25 X 8 (1" X 1/4" NB) BSP 150# REDUCING SOCKET SS 316
Side One Thread: 1" BSP Female
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 1/4" BSP Female
Suits an outside diameter (OD) of: 13.72mm
Material: Stainless
Grade: 316
£ 19.95 19.95 GBP
DN25 X 8 (1" X 1/4" NB) BSPT REDUCING BUSH SS 316
Side 1 threaded: 1" BSPT Male
Side 1 suits an outside diameter (OD) of: 33.4mm
Side 2 threaded: 1/4" BSPT Female
Side 2 suits suits an outside diameter (OD) of: 13.72mm

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.
£ 48.09 48.09 GBP
DN25 X 8 (1" X 1/4" NB) NPT REDUCING BUSH SS 316
Side 1 threaded: 1" NPT Male
Side 1 suits an outside diameter (OD) of: 33.4mm
Side 2 threaded: 1/4" NPT Female
Side 2 suits suits an outside diameter (OD) of: 13.72mm

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.
£ 59.92 59.92 GBP
DN25 X 10 (1" X 3/8" NB) BSP 150# REDUCING HEX BUSH SS 316
Side One Thread: 1" BSPT Male
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 3/8" BSPP Female
Suits an outside diameter (OD) of: 17.15mm
Material: Stainless
Grade: 316
£ 10.50 10.5 GBP
DN25 X 10 (1" X 3/8" NB) BSP 150# REDUCING HEX NIPPLE SS 316
Side One Thread: 1" BSPT Male
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 3/8" BSPT Male
Suits an outside diameter (OD) of: 17.15mm
Material: Stainless
Grade: 316
£ 11.97 11.97 GBP
DN25 X 10 (1" X 3/8" NB) BSP 150# REDUCING SOCKET SS 316
Side One Thread: 1" BSP Female
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 3/8" BSP Female
Suits an outside diameter (OD) of: 17.15mm
Material: Stainless
Grade: 316
£ 19.95 19.95 GBP
DN25 X 10 (1" X 3/8" NB) BSPT REDUCING BUSH SS 316
Side 1 threaded: 1" BSPT Male
Side 1 suits an outside diameter (OD) of: 33.4mm
Side 2 threaded: 3/8" BSPT Female
Side 2 suits suits an outside diameter (OD) of: 17.15mm

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.
£ 45.64 45.64 GBP
DN25 X 10 (1" X 3/8" NB) NPT REDUCING BUSH SS 316
Side 1 threaded: 1" NPT Male
Side 1 suits an outside diameter (OD) of: 33.4mm
Side 2 threaded: 3/8" NPT Female
Side 2 suits suits an outside diameter (OD) of: 17.15mm

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.
£ 47.18 47.18 GBP
DN25 X 15 (1" X 1/2" NB) BSP REDUCING HEX NIPPLE SS 316
Side 1 Thread: 1" NPT Male x Male
Suits an outside diameter (OD) of: 33.4mm
Side 2 Thread: 3/4" NPT Male x Male
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316

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




Alternative terminology:
Reducing Heagon Nipple, Forged Stainless Steel, Stainless Steel, Threaded, Screwed, Fittings.
£ 113.75 113.75 GBP
DN25 X 15 (1" X 1/2" NB) BSP REDUCING HEX NIPPLE SS 316
Side 1 Thread: 1" BSPT Male x Male
Suits an outside diameter (OD) of: 33.4mm
Side 2 Thread: 3/4" BSPT Male x Male
Suits an outside diameter (OD) of: 21.3mm
Material: Forged Stainless Steel
Grade: 316

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




Alternative terminology:
Reducing Heagon Nipple, Forged Stainless Steel, Stainless Steel, Threaded, Screwed, Fittings.
£ 108.08 108.08 GBP
DN25 X 15 (1" X 1/2" NB) BSP 150# REDUCING HEX BUSH SS 316
Side One Thread: 1" BSPT Male
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 1/2" BSPP Female
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
£ 9.17 9.17 GBP
DN25 X 15 (1" X 1/2" NB) BSP 150# REDUCING HEX NIPPLE SS 316
Side One Thread: 1" BSPT Male
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 1/2" BSPT Male
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
£ 11.97 11.97 GBP
DN25 X 15 (1" X 1/2" NB) BSP 150# REDUCING SOCKET SS 316
Side One Thread: 1" BSP Female
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 1/2" BSP Female
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
£ 19.95 19.95 GBP
DN25 X 15 (1" X 1/2" NB) BSPT REDUCING BUSH SS 316
Side 1 threaded: 1" BSPT Male
Side 1 suits an outside diameter (OD) of: 33.4mm
Side 2 threaded: 1/2" BSPT Female
Side 2 suits suits an outside diameter (OD) of: 21.3mm

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.
£ 46.83 46.83 GBP
DN25 X 15 (1" X 1/2" NB) BSPT REDUCING SOCKET SS 316
Side 1 threaded: 1" BSPT Female
Side 1 suits an outside diameter (OD) of: 33.4mm

Side 2 threaded: 1/2" BSPT Female
Side 2 suits an outside diameter (OD) of: 21.3mm

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
DN25 X 15 (1" X 1/2" NB) NPT REDUCING BUSH SS 316
Side 1 threaded: 1" NPT Male
Side 1 suits an outside diameter (OD) of: 33.4mm
Side 2 threaded: 1/2" NPT Female
Side 2 suits suits an outside diameter (OD) of: 21.3mm

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.
£ 47.95 47.95 GBP
DN25 X 15 (1" X 1/2" NB) NPT REDUCING SOCKET SS 316
Side 1 threaded: 1" NPT Female
Side 1 suits an outside diameter (OD) of: 33.4mm

Side 2 threaded: 1/2" NPT Female
Side 2 suits an outside diameter (OD) of: 21.3mm

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
DN25 X 15 (1" X 1/2" NB) NPT 150# REDUCING HEX BUSH SS 316
Side One Thread: 1" NPT Male
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 1/2" NPT Female
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
£ 15.61 15.61 GBP
DN25 X 15 (1" X 1/2" NB) NPT 150# REDUCING HEX NIPPLE SS 316
Side One Thread: 1" NPT Male
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 1/2" NPT Male
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
£ 16.59 16.59 GBP
DN25 X 15 (1" X 1/2" NB) NPT 150# REDUCING SOCKET SS 316
Side One Thread: 1" NPT Female
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 1/2" NPT Female
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
£ 22.89 22.89 GBP
DN25 X 15 (1" X 1/2" NB) SW 150# REDUCING SOCKET SS 316
Side One Connection: 1" SW (Socket Weld)
Suits an outside diameter (OD) of: 33.4mm
Side Two Connection: 1/2" SW (Socket Weld)
Suits an outside diameter (OD) of: 21.3mm
Material: Stainless
Grade: 316
£ 23.31 23.31 GBP
DN25 X 20 (1" X 3/4" NB) BSP REDUCING HEX NIPPLE SS 316
Side 1 Thread: 1" NPT Male x Male
Suits an outside diameter (OD) of: 33.4mm
Side 2 Thread: 3/4" NPT Male x Male
Suits an outside diameter (OD) of: 26.9mm
Material: Forged Stainless Steel
Grade: 316

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




Alternative terminology:
Reducing Heagon Nipple, Forged Stainless Steel, Stainless Steel, Threaded, Screwed, Fittings.
£ 122.22 122.22 GBP
DN25 X 20 (1" X 3/4" NB) BSP REDUCING HEX NIPPLE SS 316
Side 1 Thread: 1" BSPT Male x Male
Suits an outside diameter (OD) of: 33.4mm
Side 2 Thread: 3/4" BSPT Male x Male
Suits an outside diameter (OD) of: 26.9mm
Material: Forged Stainless Steel
Grade: 316

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




Alternative terminology:
Reducing Heagon Nipple, Forged Stainless Steel, Stainless Steel, Threaded, Screwed, Fittings.
£ 109.41 109.41 GBP
DN25 X 20 (1" X 3/4" NB) BSP 150# REDUCING HEX BUSH SS 316
Side One Thread: 1" BSPT Male
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 3/4" BSPP Female
Suits an outside diameter (OD) of: 26.9mm
Material: Stainless
Grade: 316
£ 9.17 9.17 GBP
DN25 X 20 (1" X 3/4" NB) BSP 150# REDUCING HEX NIPPLE SS 316
Side One Thread: 1" BSPT Male
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 3/4" BSPT Male
Suits an outside diameter (OD) of: 26.9mm
Material: Stainless
Grade: 316
£ 11.97 11.97 GBP
DN25 X 20 (1" X 3/4" NB) BSP 150# REDUCING SOCKET SS 316
Side One Thread: 1" BSP Female
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 3/4" BSP Female
Suits an outside diameter (OD) of: 26.9mm
Material: Stainless
Grade: 316
£ 19.95 19.95 GBP
DN25 X 20 (1" X 3/4" NB) BSP 150# REDUCING TEE SS 316
Run Thread: 1" BSP Female x Female
Branch Thread: 3/4" BSP Female
Suits an outside diameter (OD) of: 33.4mm
Suits an outside diameter (OD) of: 26.9mm
Material: Stainless
Grade: 316
£ 23.17 23.17 GBP
DN25 X 20 (1" X 3/4" NB) BSPT REDUCING BUSH SS 316
Side 1 threaded: 1" BSPT Male
Side 1 suits an outside diameter (OD) of: 33.4mm
Side 2 threaded: 3/4" BSPT Female
Side 2 suits suits an outside diameter (OD) of: 26.9mm

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.
£ 47.95 47.95 GBP
DN25 X 20 (1" X 3/4" NB) BSPT REDUCING SOCKET SS 316
Side 1 threaded: 1" BSPT Female
Side 1 suits an outside diameter (OD) of: 33.4mm

Side 2 threaded: 3/4" BSPT Female
Side 2 suits an outside diameter (OD) of: 26.9mm

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
DN25 X 20 (1" X 3/4" NB) NPT REDUCING BUSH SS 316
Side 1 threaded: 1" NPT Male
Side 1 suits an outside diameter (OD) of: 33.4mm
Side 2 threaded: 3/4" NPT Female
Side 2 suits suits an outside diameter (OD) of: 26.9mm

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.
£ 46.13 46.13 GBP
DN25 X 20 (1" X 3/4" NB) NPT REDUCING SOCKET SS 316
Side 1 threaded: 1" NPT Female
Side 1 suits an outside diameter (OD) of: 33.4mm

Side 2 threaded: 3/4" NPT Female
Side 2 suits an outside diameter (OD) of: 26.9mm

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
DN25 X 20 (1" X 3/4" NB) NPT 150# REDUCING HEX BUSH SS 316
Side One Thread: 1" NPT Male
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 3/4" NPT Female
Suits an outside diameter (OD) of: 26.9mm
Material: Stainless
Grade: 316
£ 15.26 15.26 GBP
DN25 X 20 (1" X 3/4" NB) NPT 150# REDUCING HEX NIPPLE SS 316
Side One Thread: 1" NPT Male
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 3/4" NPT Male
Suits an outside diameter (OD) of: 26.9mm
Material: Stainless
Grade: 316
£ 16.80 16.8 GBP
DN25 X 20 (1" X 3/4" NB) NPT 150# REDUCING SOCKET SS 316
Side One Thread: 1" NPT Female
Suits an outside diameter (OD) of: 33.4mm
Side Two Thread: 3/4" NPT Female
Suits an outside diameter (OD) of: 26.9mm
Material: Stainless
Grade: 316
£ 23.38 23.38 GBP
DN25 X 20 (1" X 3/4" NB) SW 150# REDUCING SOCKET SS 316
Side One Connection: 1" SW (Socket Weld)
Suits an outside diameter (OD) of: 33.4mm
Side Two Connection: 3/4" SW (Socket Weld)
Suits an outside diameter (OD) of: 26.9mm
Material: Stainless
Grade: 316
£ 20.23 20.23 GBP
DN25 X DN15 (1" X ½" NB) SCHEDULE 40S A403 SEAMLESS CONCENTRIC REDUCER SS 304
Outside Diameter (OD): 33 X 21mm
Wall Thickness: 3.38 X 2.77mm
Length: 51mm
Contact us for pricing 0.0 GBP
DN25 X DN15 (1" X ½" NB) SCHEDULE 40S A403 SEAMLESS CONCENTRIC REDUCER SS 316
Outside Diameter (OD): 33 X 21mm
Wall Thickness: 3.38 X 2.77mm
Length: 51mm
Contact us for pricing 0.0 GBP
DN25 X DN15 (1" X ½" NB) SCHEDULE 40S A403 SEAMLESS ECCENTRIC REDUCER SS 304
Outside Diameter (OD): 33 X 21mm
Wall Thickness: 3.38 X 2.77mm
Length: 51mm
Contact us for pricing 0.0 GBP
DN25 X DN15 (1" X ½" NB) SCHEDULE 40S A403 SEAMLESS ECCENTRIC REDUCER SS 316
Outside Diameter (OD): 33 X 21mm
Wall Thickness: 3.38 X 2.77mm
Length: 51mm
Contact us for pricing 0.0 GBP
DN25 X DN15 (1" X ½" NB) SCHEDULE 40S A403 WELDED CONCENTRIC REDUCER SS 304
Outside Diameter (OD): 33 X 21mm
Wall Thickness: 3.38 X 2.77mm
Length: 51mm
£ 16.52 16.52 GBP