ISO 2852

ISO 2852 Stainless steel clamp pipe couplings for the food industry[1] is an international standard that defines a non-permanent sanitary food-grade piping interconnect method, commonly used in the food processing industry and with dairy farm equipment.

The interconnect consists of:

  • a lip flange on the ends of pipes with a grooved indentation on the flange.
  • a polymer sealing gasket placed between sections of pipe, squeezed between the flanges. This ring has a raised groove on both sides mating with the indentations of the two pipes on either side.
  • an enclosing clamp with C-shape clamping sections that cover the outer circumference of the flanges, applying pressure to squeeze the two pipe sections together onto the sealing ring. The clamp also provides structural strength and rigidity to the pipe sections.

The combined lip flange and gasket do not impede the flow of fluids through the piping.

The clamping system may be permanent, using a hose clamp style screw and band, or it may be easily removable using a fold-over hinged clamp assembly.

Other names used in industry

Companies that supply products according to the specifications of ISO 2852 do not necessarily mention the ISO standard as such, instead referring to the equipment by terms common in the relevant industries or applications. Examples include:

  • Tri-Clamp Fittings[2]
  • Tri-Clover Fittings[3]
  • S-clamp fitting
  • Sanitary Fittings[4]
  • 3A pipe fitting (This terminology includes other types of fittings. "3-A" is a set of standards for cleanability and inspection of dairy equipment, developed by 3-A Sanitary Standards, Inc.[5])

See also


  1. ^ ISO 2852:1993 Stainless steel clamp pipe couplings for the food industry
  2. ^ "Tri Clamp Fittings - Tri Clover Fittings - Brewery Fittings". Retrieved 2018-10-20.
  3. ^ "Tri Clover Compatible Fittings from Brewers Hardware". Retrieved 2018-10-20.
  4. ^ "Sanitary Fittings: Low-Cost Sanitary Tube Fittings and Valves". Retrieved 2018-10-20.
  5. ^ "3A Sanitary Standard, Incorporated". Retrieved 2012-01-11.

ASME BPE (American Society of Mechanical Engineers: Bioprocessing Equipment) is an international standard developed as an aid for the design and construction of equipment intended for use in the manufacturing of biopharmaceuticals. The standard is approved as an American National Standard by the American National Standards Institute (ANSI). The first edition of the standard was approved on May 20, 1997. New editions of the standard are generally approved and published every two years.

Bulk tank

In dairy farming a bulk milk cooling tank is a large storage tank for cooling and holding milk at a cold temperature until it can be picked up by a milk hauler.

The bulk milk cooling tank is an important piece of dairy farm equipment. It is usually made of stainless steel and used every day to store the raw milk on the farm in good condition. It must be cleaned after each milk collection.

The milk cooling tank can be the property of the farmer or be rented from a dairy plant.

List of International Organization for Standardization standards, 1-4999

This is a list of published International Organization for Standardization (ISO) standards and other deliverables. For a complete and up-to-date list of all the ISO standards, see the ISO catalogue.The standards are protected by copyright and most of them must be purchased. However, about 300 of the standards produced by ISO and IEC's Joint Technical Committee 1 (JTC1) have been made freely and publicly available.

ISO standards by standard number

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