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Blind

Integraflow offers a dedicated range of EN1092-1 Blind Flanges, manufactured from 316L stainless steel for use in hygienic process systems requiring temporary or permanent pipework closure. These flanges are ideal for end-of-line blanking, maintenance shut-off, or sealing unused ports in environments that demand strict sanitary control.

Designed to EN1092-1 standards, our hygienic blind flanges are widely used in food, beverage, dairy, pharmaceutical, and cleanroom systems — particularly those requiring CIP/SIP compatibility and crevice-free sealing.

Key Features:

  • Material: 316L stainless steel (EN 1.4404)

  • Standard: EN1092-1 Type 05 – Blind Flange

  • Sizes available: DN10 to DN150

  • Pressure ratings: PN10, PN16, PN25, PN40

  • Surface finish: Hygienic polished options (Ra ≤ 0.8 μm available)

  • Optional tagging, slotted blanks, or pressure-rated variants available

  • Supplied with full 3.1 material certification and traceability

Applications:

  • Hygienic system isolation for cleaning or maintenance

  • Temporary or permanent line termination

  • Tank or valve blanking

  • Skid systems in pharma and biotech

  • Cleanroom-compatible processing environments


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Blind

DN15 PN10 / PN16 / PN25 / PN40 RF BLIND FLANGE SS 304
Flange OD (D): 95mm
Drilling (No. x Bolt Holes x L): 4 x M12 x 14mm
Pitch circle diameter (K): 65mm
Flange thickness (C4): 16mm
Material: 304
Rating: PN40
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
£12.90 each
List Price – Sign in to view Trade Prices 12.9 GBP
DN15 PN10 / PN16 / PN25 / PN40 RF BLIND FLANGE SS 316
Flange OD (D): 95mm
Drilling (No. x Bolt Holes x L): 4 x M12 x 14mm
Pitch circle diameter (K): 65mm
Flange thickness (C4): 16mm
Material: 316
Rating: PN40
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
£17.67 each
List Price – Sign in to view Trade Prices 17.67 GBP
DN20 PN10 / PN16 / PN25 / PN40 RF BLIND FLANGE SS 304
Flange OD (D): 105mm
Drilling (No. x Bolt Holes x L): 4 x M12 x 14mm
Pitch circle diameter (K): 75mm
Flange thickness (C4): 18mm
Material: 304
Rating: PN40
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
£19.86 each
List Price – Sign in to view Trade Prices 19.86 GBP
DN20 PN10 / PN16 / PN25 / PN40 RF BLIND FLANGE SS 316
Flange OD (D): 105mm
Drilling (No. x Bolt Holes x L): 4 x M12 x 14mm
Pitch circle diameter (K): 75mm
Flange thickness (C4): 18mm
Material: 316
Rating: PN40
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
£27.81 each
List Price – Sign in to view Trade Prices 27.81 GBP
DN25 PN10 / PN16 / PN25 / PN40 RF BLIND FLANGE SS 304
Flange OD (D): 115mm
Drilling (No. x Bolt Holes x L): 4 x M12 x 14mm
Pitch circle diameter (K): 85mm
Flange thickness (C4): 18mm
Material: 304
Rating: PN40
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
£22.89 each
List Price – Sign in to view Trade Prices 22.89 GBP
DN25 PN10 / PN16 / PN25 / PN40 RF BLIND FLANGE SS 316
Flange OD (D): 115mm
Drilling (No. x Bolt Holes x L): 4 x M12 x 14mm
Pitch circle diameter (K): 85mm
Flange thickness (C4): 18mm
Material: 316
Rating: PN40
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
£32.04 each
List Price – Sign in to view Trade Prices 32.04 GBP
DN32 PN10 / PN16 / PN25 / PN40 RF BLIND FLANGE SS 304
Flange OD (D): 140mm
Drilling (No. x Bolt Holes x L): 4 x M16 x 18mm
Pitch circle diameter (K): 100mm
Flange thickness (C4): 18mm
Material: 304
Rating: PN40
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
£31.41 each
List Price – Sign in to view Trade Prices 31.41 GBP
DN32 PN10 / PN16 / PN25 / PN40 RF BLIND FLANGE SS 316
Flange OD (D): 140mm
Drilling (No. x Bolt Holes x L): 4 x M16 x 18mm
Pitch circle diameter (K): 100mm
Flange thickness (C4): 18mm
Material: 316
Rating: PN40
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
£45.33 each
List Price – Sign in to view Trade Prices 45.33 GBP
DN40 PN10 / PN16 / PN25 / PN40 RF BLIND FLANGE SS 304
Flange OD (D): 150mm
Drilling (No. x Bolt Holes x L): 4 x M16 x 18mm
Pitch circle diameter (K): 110mm
Flange thickness (C4): 18mm
Material: 304
Rating: PN40
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
£37.50 each
List Price – Sign in to view Trade Prices 37.5 GBP
DN40 PN10 / PN16 / PN25 / PN40 RF BLIND FLANGE SS 316
Flange OD (D): 150mm
Drilling (No. x Bolt Holes x L): 4 x M16 x 18mm
Pitch circle diameter (K): 110mm
Flange thickness (C4): 18mm
Material: 316
Rating: PN40
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
£47.10 each
List Price – Sign in to view Trade Prices 47.1 GBP
DN50 (2" NB) PN10 / PN16 RF BLIND FLANGE SS 304
Flange OD (D): 165mm
Drilling (No. x Bolt Hole x L): 4 x M16 x 18mm
Pitch circle diameter (K): 125mm
Flange thickness (C1): 20mm
Raised face diameter (D1): 90mm
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
£47.10 each
List Price – Sign in to view Trade Prices 47.1 GBP
DN50 (2" NB) PN10 / PN16 RF BLIND FLANGE SS 316
Flange OD (D): 165mm
Drilling (No. x Bolt Hole x L): 4 x M16 x 18mm
Pitch circle diameter (K): 125mm
Flange thickness (C1): 20mm
Raised face diameter (D1): 90mm
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
£63.75 each
List Price – Sign in to view Trade Prices 63.75 GBP
DN65 (2.1/2" NB) PN10 / PN16 RF BLIND FLANGE SS 304
Flange OD (D): 185mm
Drilling (No. x Bolt Hole x L): 8 x M16 x 18mm
Pitch circle diameter (K): 145mm
Flange thickness (C1): 20mm
Raised face diameter (D1): 110mm
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
£51.69 each
List Price – Sign in to view Trade Prices 51.69 GBP
DN65 (2.1/2" NB) PN10 / PN16 RF BLIND FLANGE SS 316
Flange OD (D): 185mm
Drilling (No. x Bolt Hole x L): 8 x M16 x 18mm
Pitch circle diameter (K): 145mm
Flange thickness (C1): 20mm
Raised face diameter (D1): 110mm
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
£76.41 each
List Price – Sign in to view Trade Prices 76.41 GBP
DN80 (3" NB) PN10 / PN16 RF BLIND FLANGE SS 304
Flange OD (D): 200mm
Drilling (No. x Bolt Hole x L): 8 x M16 x 18mm
Pitch circle diameter (K): 160mm
Flange thickness (C1): 20mm
Raised face diameter (D1): 138mm
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
£71.01 each
List Price – Sign in to view Trade Prices 71.01 GBP
DN80 (3" NB) PN10 / PN16 RF BLIND FLANGE SS 316
Flange OD (D): 200mm
Drilling (No. x Bolt Hole x L): 8 x M16 x 18mm
Pitch circle diameter (K): 160mm
Flange thickness (C1): 20mm
Raised face diameter (D1): 138mm
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
£103.65 each
List Price – Sign in to view Trade Prices 103.65 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
£84.42 each
List Price – Sign in to view Trade Prices 84.42 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
£127.26 each
List Price – Sign in to view Trade Prices 127.26 GBP
DN125 (5" NB) PN10 / PN16 RF BLIND FLANGE SS 304
Flange OD (D): 250mm
Drilling (No. x Bolt Hole x L): 8 x M16 x 18mm
Pitch circle diameter (K): 210mm
Flange thickness (C1): 22mm
Raised face diameter (D1): 178mm
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
£125.61 each
List Price – Sign in to view Trade Prices 125.61 GBP
DN125 (5" NB) PN10 / PN16 RF BLIND FLANGE SS 316
Flange OD (D): 250mm
Drilling (No. x Bolt Hole x L): 8 x M16 x 18mm
Pitch circle diameter (K): 210mm
Flange thickness (C1): 22mm
Raised face diameter (D1): 178mm
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
£164.70 each
List Price – Sign in to view Trade Prices 164.7 GBP
DN150 (6" NB) PN10 / PN16 RF BLIND FLANGE SS 304
Flange OD (D): 285mm
Drilling (No. x Bolt Hole x L): 8 x M20 x 22mm
Pitch circle diameter (K): 240mm
Flange thickness (C1): 24mm
Raised face diameter (D1): 202mm
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
£149.52 each
List Price – Sign in to view Trade Prices 149.52 GBP
DN150 (6" NB) PN10 / PN16 RF BLIND FLANGE SS 316
Flange OD (D): 285mm
Drilling (No. x Bolt Hole x L): 8 x M20 x 22mm
Pitch circle diameter (K): 240mm
Flange thickness (C1): 24mm
Raised face diameter (D1): 202mm
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
£235.65 each
List Price – Sign in to view Trade Prices 235.65 GBP