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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

DN32 X DN15 (1¼" X ½" NB) SCHEDULE 40S A403 WELDED ECCENTRIC REDUCER SS 316
Outside Diameter (OD): 42 X 21mm
Wall Thickness: 3.56 X 2.77mm
Length: 51mm
£ 51.80 51.8 GBP
DN32 X DN20 (1¼" X ¾" NB) SCHEDULE 40S A403 SEAMLESS CONCENTRIC REDUCER SS 304
Outside Diameter (OD): 42 X 27mm
Wall Thickness: 3.56 X 2.87mm
Length: 51mm
Contact us for pricing 0.0 GBP
DN32 X DN20 (1¼" X ¾" NB) SCHEDULE 40S A403 SEAMLESS CONCENTRIC REDUCER SS 316
Outside Diameter (OD): 42 X 27mm
Wall Thickness: 3.56 X 2.87mm
Length: 51mm
Contact us for pricing 0.0 GBP
DN32 X DN20 (1¼" X ¾" NB) SCHEDULE 40S A403 SEAMLESS ECCENTRIC REDUCER SS 304
Outside Diameter (OD): 42 X 27mm
Wall Thickness: 3.56 X 2.87mm
Length: 51mm
Contact us for pricing 0.0 GBP
DN32 X DN20 (1¼" X ¾" NB) SCHEDULE 40S A403 SEAMLESS ECCENTRIC REDUCER SS 316
Outside Diameter (OD): 42 X 27mm
Wall Thickness: 3.56 X 2.87mm
Length: 51mm
Contact us for pricing 0.0 GBP
DN32 X DN20 (1¼" X ¾" NB) SCHEDULE 40S A403 WELDED CONCENTRIC REDUCER SS 304
Outside Diameter (OD): 42 X 27mm
Wall Thickness: 3.56 X 2.87mm
Length: 51mm
£ 17.85 17.85 GBP
DN32 X DN20 (1¼" X ¾" NB) SCHEDULE 40S A403 WELDED CONCENTRIC REDUCER SS 316
Outside Diameter (OD): 42 X 27mm
Wall Thickness: 3.56 X 2.87mm
Length: 51mm
£ 23.87 23.87 GBP
DN32 X DN20 (1¼" X ¾" NB) SCHEDULE 40S A403 WELDED ECCENTRIC REDUCER SS 304
Outside Diameter (OD): 42 X 27mm
Wall Thickness: 3.56 X 2.87mm
Length: 51mm
£ 41.58 41.58 GBP
DN32 X DN20 (1¼" X ¾" NB) SCHEDULE 40S A403 WELDED ECCENTRIC REDUCER SS 316
Outside Diameter (OD): 42 X 27mm
Wall Thickness: 3.56 X 2.87mm
Length: 51mm
£ 45.29 45.29 GBP
DN32 X DN25 (1¼" X 1" NB) SCHEDULE 40S A403 SEAMLESS CONCENTRIC REDUCER SS 304
Outside Diameter (OD): 42 X 33mm
Wall Thickness: 3.56 X 3.38mm
Length: 51mm
Contact us for pricing 0.0 GBP
DN32 X DN25 (1¼" X 1" NB) SCHEDULE 40S A403 SEAMLESS CONCENTRIC REDUCER SS 316
Outside Diameter (OD): 42 X 33mm
Wall Thickness: 3.56 X 3.38mm
Length: 51mm
Contact us for pricing 0.0 GBP
DN32 X DN25 (1¼" X 1" NB) SCHEDULE 40S A403 SEAMLESS ECCENTRIC REDUCER SS 304
Outside Diameter (OD): 42 X 33mm
Wall Thickness: 3.56 X 3.38mm
Length: 51mm
Contact us for pricing 0.0 GBP
DN32 X DN25 (1¼" X 1" NB) SCHEDULE 40S A403 SEAMLESS ECCENTRIC REDUCER SS 316
Outside Diameter (OD): 42 X 33mm
Wall Thickness: 3.56 X 3.38mm
Length: 51mm
Contact us for pricing 0.0 GBP
DN32 X DN25 (1¼" X 1" NB) SCHEDULE 40S A403 WELDED CONCENTRIC REDUCER SS 304
Outside Diameter (OD): 42 X 33mm
Wall Thickness: 3.56 X 3.38mm
Length: 51mm
£ 16.94 16.94 GBP
DN32 X DN25 (1¼" X 1" NB) SCHEDULE 40S A403 WELDED CONCENTRIC REDUCER SS 316
Outside Diameter (OD): 42 X 33mm
Wall Thickness: 3.56 X 3.38mm
Length: 51mm
£ 20.79 20.79 GBP
DN32 X DN25 (1¼" X 1" NB) SCHEDULE 40S A403 WELDED ECCENTRIC REDUCER SS 304
Outside Diameter (OD): 42 X 33mm
Wall Thickness: 3.56 X 3.38mm
Length: 51mm
£ 33.04 33.04 GBP
DN32 X DN25 (1¼" X 1" NB) SCHEDULE 40S A403 WELDED ECCENTRIC REDUCER SS 316
Outside Diameter (OD): 42 X 33mm
Wall Thickness: 3.56 X 3.38mm
Length: 51mm
£ 25.06 25.06 GBP
DN32 x DN25 (1.1/4 x 1" NB) SCHEDULE 10S A403 SEAMLESS REDUCING TEE SS 304
Outside Diameter (OD): 42 x 33mm
Wall Thickness (Run x Branch): 2.77 x 2.77mm
Centre to End (Run): 48mm
Centre to End (Branch): 48mm
Schedule: 10S
Weight: 0.45kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Reducing Tee, LR, Welding Tee, Weldable
Contact us for pricing 0.0 GBP
DN32 x DN25 (1.1/4 x 1" NB) SCHEDULE 10S A403 SEAMLESS REDUCING TEE SS 316
Outside Diameter (OD): 42 x 33mm
Wall Thickness (Run x Branch): 2.77 x 2.77mm
Centre to End (Run): 48mm
Centre to End (Branch): 48mm
Schedule: 10S
Weight: 0.45kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Reducing Tee, LR, Welding Tee, Weldable
Contact us for pricing 0.0 GBP
DN32 x DN25 (1.1/4 x 1" NB) SCHEDULE 10S A403 WELDED REDUCING TEE SS 304
Outside Diameter (OD): 42 x 33mm
Wall Thickness (Run x Branch): 2.77 x 2.77mm
Centre to End (Run): 48mm
Centre to End (Branch): 48mm
Schedule: 10S
Weight: 0.45kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Reducing Tee, LR, Welding Tee, Weldable
£ 51.38 51.38 GBP
DN32 x DN25 (1.1/4 x 1" NB) SCHEDULE 10S A403 WELDED REDUCING TEE SS 316
Outside Diameter (OD): 42 x 33mm
Wall Thickness (Run x Branch): 2.77 x 2.77mm
Centre to End (Run): 48mm
Centre to End (Branch): 48mm
Schedule: 10S
Weight: 0.45kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Reducing Tee, LR, Welding Tee, Weldable
£ 60.06 60.06 GBP
DN32 x DN25 (1.1/4 x 1" NB) SCHEDULE 40S A403 SEAMLESS REDUCING TEE SS 304
Outside Diameter (OD): 42 x 33mm
Wall Thickness (Run x Branch): 3.56 x 3.38mm
Centre to End (Run): 48mm
Centre to End (Branch): 48mm
Schedule: 40s
Weight: 0.63kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Reducing Tee, LR, Welding Tee, Weldable
Contact us for pricing 0.0 GBP
DN32 x DN25 (1.1/4 x 1" NB) SCHEDULE 40S A403 SEAMLESS REDUCING TEE SS 316
Outside Diameter (OD): 42 x 33mm
Wall Thickness (Run x Branch): 3.56 x 3.38mm
Centre to End (Run): 48mm
Centre to End (Branch): 48mm
Schedule: 40s
Weight: 0.63kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Reducing Tee, LR, Welding Tee, Weldable
Contact us for pricing 0.0 GBP
DN32 x DN25 (1.1/4 x 1" NB) SCHEDULE 40S A403 WELDED REDUCING TEE SS 304
Outside Diameter (OD): 42 x 33mm
Wall Thickness (Run x Branch): 3.56 x 3.38mm
Centre to End (Run): 48mm
Centre to End (Branch): 48mm
Schedule: 40s
Weight: 0.63kg

Material: Stainless Steel
Material Grade: 304

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Reducing Tee, LR, Welding Tee, Weldable
£ 37.80 37.8 GBP
DN32 x DN25 (1.1/4 x 1" NB) SCHEDULE 40S A403 WELDED REDUCING TEE SS 316
Outside Diameter (OD): 42 x 33mm
Wall Thickness (Run x Branch): 3.56 x 3.38mm
Centre to End (Run): 48mm
Centre to End (Branch): 48mm
Schedule: 40s
Weight: 0.63kg

Material: Stainless Steel
Material Grade: 316

Certification Available: 3.1 BS EN 10204 Material Certification

Alternative Terminology: Buttweld Tee, Reducing Tee, LR, Welding Tee, Weldable
£ 66.64 66.64 GBP
DN32x15 (1.1/4" x 1/2" NB) BSP 150# REDUCING TEE SS 316
Thread: 1.1/4" BSPP Female x Female, 1/2" BSPP Female Branch
Suits main run OD 42.2mm, branch OD 21.3mm

Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Reducing Tee, Tee Piece, Screwed, Low Pressure, 150 psi
£ 23.17 23.17 GBP
DN32x20 (1.1/4" x 3/4" NB) BSP 150# REDUCING TEE SS 316
Thread: 1.1/4" BSPP Female x Female, 3/4" BSPP Female Branch
Suits main run OD 42.2mm, branch OD 26.7mm

Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Reducing Tee, Tee Piece, Screwed, Low Pressure, 150 psi
£ 33.53 33.53 GBP
DN32x25 (1.1/4" x 1" NB) BSP 150# REDUCING TEE SS 316
Thread: 1.1/4" BSPP Female x Female, 1" BSPP Female Branch
Suits main run OD 42.2mm, branch OD 33.4mm

Material: Stainless
Grade: 316

Standards:
Nominal Bore, Threaded, Reducing Tee, Tee Piece, Screwed, Low Pressure, 150 psi
£ 33.53 33.53 GBP
DN40 (1 1/2" NB) PN10/PN16/PN25/PN40 RF BSPP THREADED FLANGE SS 304
Flange outside diameter: 150mm (D)
Flange thickness: 18mm (C2)
Pitch Circle Diameter (PCD): 110mm (K)
Flange hub height: 32mm (H1)
Raised Face Height: 3mm (f1)
BSPP Thread: 1 1/2"
Bolt Holes: 4 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
Contact us for pricing 0.0 GBP
DN40 (1 1/2" NB) PN10/PN16/PN25/PN40 RF BSPP THREADED FLANGE SS 316
Flange outside diameter: 150mm (D)
Flange thickness: 18mm (C2)
Pitch Circle Diameter (PCD): 110mm (K)
Flange hub height: 32mm (H1)
Raised Face Height: 3mm (f1)
BSPP Thread: 1 1/2"
Bolt Holes: 4 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
Contact us for pricing 0.0 GBP
DN40 (1 1/2" NB) PN6 RF BSPP THREADED FLANGE SS 304
Flange outside diameter: 130mm (D)
Flange thickness: 14mm (C2)
Pitch Circle Diameter (PCD): 100mm (K)
Flange hub height: 28mm (H1)
Raised Face Height: 3mm (f1)
BSPP Thread: 1 1/2"
Bolt Holes: 4 off M12 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
Contact us for pricing 0.0 GBP
DN40 (1 1/2" NB) PN6 RF BSPP THREADED FLANGE SS 316
Flange outside diameter: 130mm (D)
Flange thickness: 14mm (C2)
Pitch Circle Diameter (PCD): 100mm (K)
Flange hub height: 28mm (H1)
Raised Face Height: 3mm (f1)
BSPP Thread: 1 1/2"
Bolt Holes: 4 off M12 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
Contact us for pricing 0.0 GBP
DN40 (1"1/2 NB) SCHEDULE 10S ASA300 WELD NECK FLANGE SS 304
Outside diameter (O): 155.4mm
Flange thickness (C): 20.5mm
Hub height (X): 69.8mm
Length through hub (A): 48.2mm
Bolt circle diameter (K): 114.3mm
Overall height (Y): 68.3mm
Raised face thickness (RF): 1.5mm
Bore (B): 73.1mm
Number of bolt holes: 4
Bolt hole diameter: 22.3mm
Approx. weight: 3.3kg
Contact us for pricing 0.0 GBP
DN40 (1"1/2 NB) SCHEDULE 10S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 155.4mm
Flange thickness (C): 20.5mm
Hub height (X): 69.8mm
Length through hub (A): 48.2mm
Bolt circle diameter (K): 114.3mm
Overall height (Y): 68.3mm
Raised face thickness (RF): 1.5mm
Bore (B): 73.1mm
Number of bolt holes: 4
Bolt hole diameter: 22.3mm
Approx. weight: 3.3kg
£ 269.78 269.78 GBP
DN40 (1"1/2 NB) SCHEDULE 40S ASA300 WELD NECK FLANGE SS 304
Outside diameter (O): 155.4mm
Flange thickness (C): 20.5mm
Hub height (X): 69.8mm
Length through hub (A): 48.2mm
Bolt circle diameter (K): 114.3mm
Overall height (Y): 68.3mm
Raised face thickness (RF): 1.5mm
Bore (B): 73.1mm
Number of bolt holes: 4
Bolt hole diameter: 22.3mm
Approx. weight: 3.3kg
Contact us for pricing 0.0 GBP
DN40 (1"1/2 NB) SCHEDULE 40S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 155.4mm
Flange thickness (C): 20.5mm
Hub height (X): 69.8mm
Length through hub (A): 48.2mm
Bolt circle diameter (K): 114.3mm
Overall height (Y): 68.3mm
Raised face thickness (RF): 1.5mm
Bore (B): 73.1mm
Number of bolt holes: 4
Bolt hole diameter: 22.3mm
Approx. weight: 3.3kg
£ 197.47 197.47 GBP
DN40 (1"1/2 NB) SCHEDULE 80S ASA300 WELD NECK FLANGE SS 304
Outside diameter (O): 155.4mm
Flange thickness (C): 20.5mm
Hub height (X): 69.8mm
Length through hub (A): 48.2mm
Bolt circle diameter (K): 114.3mm
Overall height (Y): 68.3mm
Raised face thickness (RF): 1.5mm
Bore (B): 73.1mm
Number of bolt holes: 4
Bolt hole diameter: 22.3mm
Approx. weight: 3.3kg
Contact us for pricing 0.0 GBP
DN40 (1"1/2 NB) SCHEDULE 80S ASA300 WELD NECK FLANGE SS 316
Outside diameter (O): 155.4mm
Flange thickness (C): 20.5mm
Hub height (X): 69.8mm
Length through hub (A): 48.2mm
Bolt circle diameter (K): 114.3mm
Overall height (Y): 68.3mm
Raised face thickness (RF): 1.5mm
Bore (B): 73.1mm
Number of bolt holes: 4
Bolt hole diameter: 22.3mm
Approx. weight: 3.3kg
Contact us for pricing 0.0 GBP
DN40 (1.1/2" NB) ASA150 FLANGED 2PC LEVER OP. BALL VALVE LEVER OP SS 316
Flanged both ends: 1.1/2" ASA 150
Suits an outside diameter (OD) of: 48.3mm
PCD: 98.4mm Ø (ANSI 150)
Face to face: 166mm
Construction: 2 Piece
Body Material: CF8/CF8M (316) Stainless
Bore: Full Bore
Internals: PTFE Seals
Investment Casting
Blowout proof stem
£ 628.04 628.04 GBP
DN40 (1.1/2" NB) ASA150 RF BLIND FLANGE SS 304
Outside diameter (O): 127.0mm
Flange thickness (C): 17.5mm
Pitch circle diameter (K): 98.5mm
Raised face height (RF): 1.5mm
Raised face diameter (R): 73.1mm
Number of bolt holes: 4
Material: Stainless Steel 304
Rating: ASA 150
Type: Blind flange (ASME B16.5)

Standards: ASME B16.5
Flange Face: Raised Face
Certification Available: 3.1 BS EN 10204 Material Certification

Alternative terminology:
Blind Flange, Blank, ASA150, Stainless Steel, Raised Faced
Contact us for pricing 0.0 GBP