Visionstar KT-21/22

Pulsating Vacuum Operation

Pulsating vacuum is stated at minus 0.92 bar with a limiting vacuum of minus 0.96 bar, which the manufacturer relates to the best effect of sterilisation.

Interlayer Design and Water Pumping

The vacuum system uses injection water pumping within an interlayer design, related by the manufacturer to higher working stability and a longer non-maintenance cycle.

Eight Programmes

Universal, quick, gentle and customs programmes cover routine work, alongside Bowie and Dick, helix, vacuum test and drying programmes for validation and preparation.

Routine Programme Parameters

Universal runs 134 degrees for 6 minutes with 10 minutes drying, quick runs 134 degrees for 4 minutes with 5 minutes drying, and gentle runs 121 degrees for 20 minutes.

Customs Programme Range

The customs programme allows 115 to 134 degrees, sterilising from 4 to 30 minutes, drying from 0 to 30 minutes and between 1 and 6 vacuum pulses.

Test Cycles Included

Bowie and Dick and helix tests each run at 134 degrees for 3.5 minutes, with separate vacuum test and drying programmes running 15 minutes each.

Safety Provisions

A safety door interlock is fitted and over temperature protection operates automatically, so a cycle cannot be opened while running or continue beyond its limits.

Water Quality Monitoring

A water quality monitoring system is described, which the manufacturer relates to avoiding secondary contamination of instruments arising from poor water.

Hospital Department Sterilising

Hospital use is named first. A bench unit of 21L or 22L suits a department processing its own instrument sets rather than relying entirely on a central sterile services department. Operating appliances and medical dressings are both named among the loads, and vacuum operation with a drying stage is what makes wrapped and packaged items realistic rather than only unwrapped solid instruments left loose on a tray.

Dental Practice

Dental instruments appear in the stated list. A practice running a full appointment book needs turnaround measured against the working day, and the quick programme at 134 degrees for 4 minutes with 5 minutes drying is aimed at exactly that. The gentle programme at 121 degrees for 20 minutes offers a lower temperature route where an instrument or load warrants it. Both sit on the same machine, chosen at the panel.

Laboratory and Research Use

Scientific research units are named, with glassware and injection wares among the loads that can withstand high temperature and pressure. A settable temperature between 115 and 135 degrees and a customs programme with adjustable time and pulse count give a laboratory scope to define a cycle for its own materials rather than working only from fixed presets decided by somebody else.

Routine Validation and Records

Bowie and Dick, helix and vacuum test programmes are provided as dedicated cycles. Those tests are how a department demonstrates that air removal and steam penetration are working, and having them built in means the checks happen on the same machine that does the work. An optional printer supports the written record those checks are kept for, which is what an inspection will ask to see.

Vacuum Where It Matters

Air trapped in a load is what prevents steam reaching a surface, and a pulsating vacuum addresses that before sterilising begins rather than hoping displacement is sufficient. At a stated minus 0.92 bar pulsating and minus 0.96 bar limiting, with between one and six pulses selectable on the customs programme, the unit is built around removing air properly. For wrapped or hollow items, that is the whole difference between a cycle that works and one that appears to.

Testing Built In

Bowie and Dick, helix and vacuum test cycles as standard programmes mean a practice can run its routine checks without additional equipment or a service visit. Decontamination governance rests on being able to show that tests were performed and passed, and a machine that performs them itself removes a practical obstacle that otherwise leads to testing being deferred.

Two Chamber Shapes, One Specification

The KT-21 and KT-22 share temperature range, timing, dimensions and weight, differing in chamber geometry: 200mm diameter by 650mm against 250mm diameter by 450mm for near identical volume. A longer narrower chamber suits different loads from a shorter wider one, so a department can choose the shape that matches its trays and its instruments without changing anything else about the machine or how it is installed.

The Visionstar KT-21 and KT-22 are pulsating vacuum bench sterilisers built for hospital, dental and laboratory work. Vacuum is stated at minus 0.92 bar pulsating and minus 0.96 bar limiting, temperature is settable from 115 to 135 degrees, sterilising time runs from 1 to 30 minutes and drying from 0 to 30 minutes. Eight programmes cover universal, quick, gentle and customs cycles alongside Bowie and Dick, helix, vacuum test and drying. Both units measure 780 by 420 by 512mm and weigh 55kg, with 21L in a 200 by 650mm chamber or 22L in a 250 by 450mm chamber.

Two things are deliberately withheld. The electrical rating printed on the card is not reproduced, and the stated Class B sterilisation standard appears here as the manufacturer's own statement, not as an assertion made by this listing. Documentation for that classification should be obtained and reviewed before any decision. Nothing here should be read as a claim about testing or regulatory approval.

If your department is specifying a bench steriliser and needs the classification documentation, chamber geometry and installation requirements checked properly, speak to Medigear.uk. As a verified medical equipment supplier working across medical, dental, rehabilitation and aquatic therapy settings, the team will confirm which model suits your loads and what its paperwork covers.