NKE Sanitary Stainless Steel Tubes, Valves, and Fittings
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Sanitary Stainless Steel Unions / Couplings
Dairy Stainless Steel Unions / Couplings
Tri Clamp Union
The tri Clamp Union is comprised of a Clamp Ring, two ferrules, and a tri clamp seal.
The Ferrule Coupling has a + shaped Gasket.
SMS Union
The SMS Union is comprised of a SMS round slotted nut, SMS male part, SMS liner, and SMS gasket.
The SMS coupling has a L shaed gasket.
DIN Union 11851
The DIN 11851 Union is comprised of a DIN round slotted nut, DIN male part, DIN liner, and DIN gasket.
The DIN coupling has a D shaped gasket.
RJT Union
The RJT Union is comprised of a RJT round slotted nut, RJT male part, RJT liner, and RJT gasket.
The RJT coupling has an O-ring gasket.
IDF Union
The IDF Union is comprised of a IDF round slotted nut, IDF male part, IDF liner, and IDF gasket.
The easiest way to identify an IDF Union is its T shaped gasket.
KF Clamp (KF Flange)
The KF Union is comprised of a KF Clamp, two KF Flanges, and a KF Centering Ring with Seal.
The KF Coupling has an O-ring seal that is supported by a centering ring.
ISO Clamp (ISO Flange)
The ISO Union is comprised of ISO Claw Clamps, two ISO Flanges, and a ISO Centering Ring with Seal.
The ISO Coupling has an O-ring seal that is supported by a centering ring.
Hygienic Unions / Couplings come in different standards
The different unions above represent different Sanitary Standards . SMS (Swedish Milk Standards), DIN (German Standards), RJT (Ring Joint Type), IDF (International Dairy Federation, 3A (American FDA Standards).
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The most important differences between these standards are
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Welding Outer Diameter, Inner Diameter, and Thickness, you need to use Unions from the same standards as your pipe line to make sure you can weld them together
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Design and thread size- Different designs means Unions from different standards are incompatible with each other, you cant lock an SMS Union with a Nut from a DIN Union.
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Tri Clamp Unions can be tightened and loosen without any special tools, while the rest require compatible spanners.
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Unsure about which Standards are suitable for your pipe line? Call us, we will show you how to determine your current pipe line standards.
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NKE is a Sanitary Union supplier in Malaysia.