Skip to Content

Metric DIN11850 (DN)

Integraflow supplies a complete range of Metric DIN Unions, designed to connect hygienic stainless steel process pipework to DIN 11851 standards using metric outside diameter (OD) tube. These unions are ideal for European-standard hygienic systems, ensuring clean, secure, and easily dismantled connections for regular cleaning and maintenance.

DIN Metric Unions include:

  • Male Part (Liner) – welded to the metric tube end

  • Female Part (Ferrule) – also designed for metric tube sizes

  • DIN Nut – to clamp the union securely

  • Hygienic Seal – available in EPDM, Viton, PTFE, Silicone, or Nitrile

Key features:

  • Compatible with metric OD tube sizes from DN10 to DN150

  • Machined and polished from 316L stainless steel

  • Conforms to DIN 11851 profiles for hygienic union sealing

  • Suitable for CIP (Clean-In-Place) and SIP (Sterilise-In-Place) systems

  • Available with FDA and USP Class VI compliant gaskets

Common applications:

  • Food and beverage production

  • Dairy and milk transfer systems

  • Pharmaceutical and biotech processing

  • Cosmetic and personal care manufacturing

Integraflow’s Metric DIN Unions offer full traceability, high-quality surface finishes (Ra ≤ 0.8 μm), and fast UK dispatch — ensuring compliant, hygienic performance across your entire process system.

DN10 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a DN10 DIN Union
Material: Stainless
Grade: 304

Applications: Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£13.02 each
List Price – Sign in to view Trade Prices 13.02 GBP
DN15 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a DN15 DIN Union
Material: Stainless
Grade: 304

Applications: Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£13.30 each
List Price – Sign in to view Trade Prices 13.3 GBP
DN20 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a DN20 DIN Union
Material: Stainless
Grade: 304

Applications: Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£14.63 each
List Price – Sign in to view Trade Prices 14.63 GBP
DN25 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a DN25 DIN Union
Material: Stainless
Grade: 304

Applications: Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£13.65 each
List Price – Sign in to view Trade Prices 13.65 GBP
DN25 DIN UNION WELD LINER SS 316 (DIN PART 3 OF 4)
Suits a DN25 DIN Union
Material: Stainless
Grade: 316

Applications: Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£13.93 each
List Price – Sign in to view Trade Prices 13.93 GBP
DN32 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a DN32 DIN Union
Material: Stainless
Grade: 304

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£20.65 each
List Price – Sign in to view Trade Prices 20.65 GBP
DN32 DIN UNION WELD LINER SS 316 (DIN PART 1 OF 4)
Suits a DN32 DIN Union
Material: Stainless
Grade: 316

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£25.62 each
List Price – Sign in to view Trade Prices 25.62 GBP
DN40 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a DN40 DIN Union
Material: Stainless
Grade: 304

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£17.50 each
List Price – Sign in to view Trade Prices 17.5 GBP
DN40 DIN UNION WELD LINER SS 316 (DIN PART 1 OF 4)
Suits a DN40 DIN Union
Material: Stainless
Grade: 316

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£17.29 each
List Price – Sign in to view Trade Prices 17.29 GBP
DN50 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a DN50 DIN Union
Material: Stainless
Grade: 304

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£20.65 each
List Price – Sign in to view Trade Prices 20.65 GBP
DN50 DIN UNION WELD LINER SS 316 (DIN PART 1 OF 4)
Suits a DN50 DIN Union
Material: Stainless
Grade: 316

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£21.28 each
List Price – Sign in to view Trade Prices 21.28 GBP
DN65 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits DN65 DIN Union
Material: Stainless
Grade: 304

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£30.80 each
List Price – Sign in to view Trade Prices 30.8 GBP
DN65 DIN UNION WELD LINER SS 316 (DIN PART 1 OF 4)
Suits DN65 DIN Union
Material: Stainless
Grade: 316

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£39.90 each
List Price – Sign in to view Trade Prices 39.9 GBP
DN75 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a DN75 DIN Union
Material: Stainless
Grade: 304

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£182.21 each
List Price – Sign in to view Trade Prices 182.21 GBP
DN80 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a DN80 DIN Union
Material: Stainless
Grade: 304

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£44.10 each
List Price – Sign in to view Trade Prices 44.1 GBP
DN80 DIN UNION WELD LINER SS 316 (DIN PART 1 OF 4)
Suits a DN80 DIN Union
Material: Stainless
Grade: 316

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£42.56 each
List Price – Sign in to view Trade Prices 42.56 GBP
154mm OD METRIC DIN WELD LINER SS 304 (DIN PART 3 OF 4)
Suits a DN154 DIN Union
Material: Stainless
Grade: 316

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£138.32 each
List Price – Sign in to view Trade Prices 138.32 GBP
DN100 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a DN100 DIN Union
Material: Stainless
Grade: 304

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£45.50 each
List Price – Sign in to view Trade Prices 45.5 GBP
DN100 DIN UNION WELD LINER SS 316 (DIN PART 1 OF 4)
Suits a DN100 DIN Union
Material: Stainless
Grade: 316

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£62.93 each
List Price – Sign in to view Trade Prices 62.93 GBP
DN125 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a DN125 DIN Union
Material: Stainless
Grade: 304

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£122.36 each
List Price – Sign in to view Trade Prices 122.36 GBP
DN125 DIN UNION WELD LINER SS 316 (DIN PART 1 OF 4)
Suits a DN125 DIN Union
Material: Stainless
Grade: 316

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£91.14 each
List Price – Sign in to view Trade Prices 91.14 GBP
DN150 DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a DN150 DIN Union
Material: Stainless
Grade: 304

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£170.94 each
List Price – Sign in to view Trade Prices 170.94 GBP
DN150 DIN UNION WELD LINER SS 316 (DIN PART 1 OF 4)
Suits a DN150 DIN Union
Material: Stainless
Grade: 316

Applications:
Hygienic, Dairy & Sanitary - Dairy Processing, Brewing / Breweries / Beverage Production, Distilleries, Water Treatment, Waste Water, Chemicals, Bottling Plants, Medical & Pharmaceutical, Hospitals.
£138.32 each
List Price – Sign in to view Trade Prices 138.32 GBP
1.00" DIN UNION BLANK SS 316
Stainless 316
Hygienic
Part of the DIN Union
£15.05 each
List Price – Sign in to view Trade Prices 15.05 GBP