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Integraflow Store 

Weld Liner

ntegraflow supplies a full range of Metric DIN Liners, also known as DIN Male Parts, manufactured from 316L stainless steel and designed to suit metric OD stainless steel tubing. These components form the male half of a DIN 11851 hygienic union, providing a smooth, hygienic bore when welded to the end of a metric tube.

These liners are ideal for hygienic systems requiring frequent cleaning and disassembly, offering precise fitment and hygienic flow performance.

Key features:

  • Designed to fit metric tube sizes from DN10 to DN150

  • Precision-machined to DIN 11851 standard union profiles

  • Weld end suitable for orbital or manual TIG welding

  • Internal polish typically Ra ≤ 0.8 μm, suitable for CIP/SIP systems

  • Compatible with Integraflow’s DIN Nuts, Ferrules, and Seals

Applications:

  • Hygienic food and beverage processing

  • Dairy and milk transfer lines

  • Pharmaceutical and biotech production

  • Cleanroom and cosmetic processing systems

All Metric DIN Liners are fully batch traceable, available with optional surface finish documentation, and ready for fast UK dispatch from Integraflow – your trusted hygienic union supplier.

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 13.93 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 25.62 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 17.29 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 21.28 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 39.9 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 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.
£ 138.32 138.32 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 62.93 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 91.14 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.
£ 138.32 138.32 GBP