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Imperial

Integraflow supplies a specialist range of DIN Imperial Unions, combining the hygienic design and performance of the DIN 11851 standard with compatibility for imperial outside diameter (OD) stainless steel tubing.

These unions are ideal for UK-based process systems where pipework is specified in inches rather than metric, offering the same clean, secure, and easily disassembled connection trusted in DIN hygienic pipework systems.

DIN Imperial Unions consist of:

  • Male Part (Liner) – machined to suit imperial OD tubing

  • Female Part (Ferrule) – also adapted for imperial tube ends

  • DIN Nut – standard thread for union tightening

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

Key benefits:

  • Designed for use with 1” to 4” imperial OD tube

  • Manufactured in 316L stainless steel with polished hygienic finish

  • Internals machined to DIN 11851 profiles for standard union sealing

  • Compatible with CIP/SIP processes

  • Seals available in FDA/USP Class VI compliant materials

Applications:

  • Hygienic installations using imperial tube sizes

  • Legacy systems and UK-based process upgrades

  • Food, dairy, beverage, and cosmetic manufacturing

  • Pharmaceutical and biotech production lines

All DIN Imperial Union components are fully traceable and available for fast UK dispatch from Integraflow – delivering hygienic solutions without compromise.

1.00" OD DIN UNION BLUE NITRILE SEAL (DIN PART 4 OF 4)
Suits a 1" DIN Union
Material: Nitrile (NBR)
Colour: Blue
DIN Union: Part 4 of 4
£1.61 each
List Price – Sign in to view Trade Prices 1.61 GBP
1.00" OD DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a 1" 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.
£11.20 each
List Price – Sign in to view Trade Prices 11.2 GBP
1.00" OD DIN UNION WELD LINER SS 316 (DIN PART 3 OF 4)
Suits a 1" DIN Union
Material: Stainless
Grade: 316
DIN Union: Part 3 of 4
£11.20 each
List Price – Sign in to view Trade Prices 11.2 GBP
1.00" OD DIN UNION WELD MALE SS 316 (DIN PART 2 OF 4)
Suits a 1" DIN Union
Material: Stainless
Grade: 316
DIN Union: Part 2 of 4
£17.50 each
List Price – Sign in to view Trade Prices 17.5 GBP
1.25" OD DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a 1.1/4" 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.
£23.31 each
List Price – Sign in to view Trade Prices 23.31 GBP
1.50" OD DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a 1.1/2" 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.
£16.31 each
List Price – Sign in to view Trade Prices 16.31 GBP
1.50" OD DIN UNION WELD LINER SS 316 (DIN PART 3 OF 4)
Suits a 1.1/2" 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.
£16.45 each
List Price – Sign in to view Trade Prices 16.45 GBP
2.00" OD DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a 2" 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
2.00" OD DIN WELD LINER SS 316 (DIN PART 3 OF 4)
Suits a 2" 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.
£19.60 each
List Price – Sign in to view Trade Prices 19.6 GBP
2.1/2" OD DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits 2.1/2" 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.
£26.60 each
List Price – Sign in to view Trade Prices 26.6 GBP
2.50" OD DIN WELD LINER SS 316 (DIN PART 3 OF 4)
Suits a 2.1/2" 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.
£26.60 each
List Price – Sign in to view Trade Prices 26.6 GBP
3" OD DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a 3" 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.
£38.15 each
List Price – Sign in to view Trade Prices 38.15 GBP
3.00" OD DIN UNION WELD LINER SS 316 (DIN PART 3 OF 4)
Suits a 3" 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.
£38.15 each
List Price – Sign in to view Trade Prices 38.15 GBP
4" OD DIN UNION NUT SS 304 (DIN PART 1 OF 4)
Suits a 4" 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.
£51.45 each
List Price – Sign in to view Trade Prices 51.45 GBP
4.00" OD DIN UNION WELD LINER SS 316 (DIN PART 3 OF 4)
Suits a 4" 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.
£51.45 each
List Price – Sign in to view Trade Prices 51.45 GBP