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Blank Nut 316 – BSM

British Standard Milk (BSM) stainless steel unions were originally designed for tube installation in the dairy industry, but are now widely used in the food and beverage sectors. BSM unions consist of a nut, liner, male component, and seal.

There are two main types of BSM unions:

  • Ring Joint Type (RJT), which features an ‘O’ ring style seal.
  • Clean In Place (CIP), which uses a ‘Flat Face’ style seal. The key difference between the two is that the CIP seal fills the gap between the liner and male component for enhanced sealing.
Size A B L H
1″ / 25 mm 42.6 49 50.8 24
1 1/2″ / 38 mm 55.3 63 65 24
2″ / 50 mm 68.3 77.3 79.3 25
2 1/2″ / 63 mm 80.9 90 92 26
3″ / 76 mm 93.6 102.7 104.7 26
4″ / 101 mm 119.1 128 130 26
5″ / 125 mm 144.1 153.6 155.6 27
6″ / 150 mm 169.7 182 184 28

Available with Standard or Heavy Duty chain