SERTO has developed the SERTO Selection product range to meet the highest requirements for tightness and cleanliness in stainless steel connecting components. SERTO Selection stands for ultrasonically cleaned, lubricant-free stainless steel connections with electropolished surfaces and no dead space.
The SERTO Selection consists of two product families:
The UHP product range is a new development. It includes the union nut made of Nitronic®60, electropolished weld-on nipple made of stainless steel 1.4404 with PTFE or silver coating, the union body, also made of electropolished stainless steel 1.4404, as well as the electropolished weld-on elbow and tee.
The coated sealing surfaces are abrasion-free and the dead space-free design prevents dirt from building up on the components. All UHP products have a lasered production code for full traceability. The low leakage rate of 10‑11 mbar x l/s and the high resistance to pressure of up to 500 bar allow a wide range of applications.
The HP product range is based on components from the existing and proven stainless steel range. The union nut made of stainless steel 1.4571 is internally silver plated, the compression ferrule made of 1.4571 is coated with PTFE or with silver, and the union body made of 1.4404/1.4571 is electropolished.
The sealing surfaces of the HP compression ferrules are also very abrasion resistant. The leakage rate is 10‑9 mbar x l/s and the resistance to pressure reaches up to 250 bar.
|UHP Orbital welded connection||HP Compression ferrule union|
|Dead space free||Low dead space|
|Leakage rate: ≤ 10-11 mbar × l/s||Leakage rate: ≤ 10-9 mbar × l/s|
|Vacuum: up to 10-9 mbar||Vacuum: up to 10-7 mbar|
|Internal roughness (iRa): ≤ 0.25 µm||Internal roughness (iRa): ≤ 0.8 µm|
|Operating pressure: up to 500 bar (fourfold safety)||Operating pressure: up to 250 bar (fourfold safety)|
|Metric and inch dimensions||Metric dimensions|
|Marking of batch code||Marking of batch code upon request|
|Materials: stainless steel 1.4404 / 1.4571 / Nitronic®|
|Temperature range: -70°C to +260°C|
|Lubricant-free due to coatings (silver or PTFE)|
|Small dimensions with radial mounting|
|Easy installation without seals|
|Ultrasonic cleaning, vacuum-packed, double packed|