Blackstone Partition WY-150SM

Small hospital decontamination units, dental hospitals, community decontamination rooms with separate wash and clean sides, day surgery units, and independent hospitals without plant steam are where the WY-150SM fits. Wrapped instrument sets, dressings and other porous items, and hollow or lumened instruments suit its vacuum cycles, while its pass-through layout keeps finished loads on the clean side.

The obligations that come with it deserve as much planning as the machine. A pressure system with its own steam generator sits under a written scheme of examination, a pass-through opening becomes part of the building's fire strategy, and decontamination guidance sets daily and periodic tests whose results must be kept. Inspectors look at all of it.

Recent history shows how much weight those records carry. In 2018, inspectors suspended Glasgow's Cowlairs decontamination unit, which supplied all of the city's hospitals, and more than 1,000 operations were cancelled. The health board said the issues concerned the building fabric, record-keeping and training, not the sterilising processes themselves, and reports said important safety checks had been missed.

For a department choosing the WY-150SM, that is the practical lesson. The steriliser removes a building steam supply from its responsibilities. Still, the scheme, the validation, the test results, the interlock checks, and the training records remain, and they need an owner from day one.

Health services that buy through formal tenders, including the NHS, ask for EN 285 evidence, validation plans, and record systems for sterilisers like this, and public buyers in other countries ask for much the same. The conformity documentation those procurement routes require is issued by the manufacturer and shared by the enquiry team.

One Pressure System on One Scheme

The vessel, generator, and air supply sit under a single written scheme of examination. With no building steam main involved, the documentation stops at the unit itself.

Pass-Through Separation in a Small Opening

The cabinet's 690 × 1,740 mm cross-section needs a modest opening in the partition. A small penetration is simpler to fire-stop, seal and keep compliant.

An Interlock That Can Be Tested and Logged

The manufacturer lists a double-door interlock for its horizontal range. A defined safety device gives the periodic test schedule a clear item to check and record.

Vacuum for Wrapped, Porous and Hollow Loads

Air is drawn out of packs and lumens by repeated pulses to −0.086 MPa ahead of the hold. Departments can process wrapped sets and cannulated instruments in the same chamber.

A Clear Standards Position

At about 154 litres, with room for a standard module, the chamber falls squarely under EN 285. There is no ambiguity over which test evidence to request.

Steam Raised in the Unit

The generator produces up to 13 kg of steam per cycle from the electrical supply. The site needs no boiler, steam main or condensate return.

A Jacketed Chamber With Drying

Series descriptions give the round chamber a heat-retaining jacket that supports drying. Packs leave the chamber with less moisture to manage.

Electrically Locked Doors

The series description gives each door a disc-type geared mechanism with an electric lock. Securing a door does not depend on operator strength.

A Stated Uniformity Figure

The series lists temperature uniformity within ±2.0 °C, giving validation and periodic thermometric tests a defined benchmark.

150-Litre Cylindrical Chamber

The chamber bore is 472 mm and its depth is 880 mm.

Double Door, Code S

S indicates the double door, with one opening on each side of the partition.

Pulsating Vacuum, Code M

M indicates vacuum pulses down to −0.086 MPa before the sterilising hold.

Built-In Steam Generation

The unit's own generator supplies up to 13 kg of steam per cycle.

Sterilising Range

Each hold sits between 115 and 138 °C, with the chamber at 0.23 MPa.

Design Limits

The vessel's design range is −0.1 to 0.3 MPa at 150 °C.

Uniformity

The sheet gives chamber temperature uniformity as within ±2.0 °C.

Water Supply

Up to 190 kg per cycle at 0.1 to 0.2 MPa, mostly for the vacuum system.

Compressed Air

A compressed air connection at 0.4 to 0.7 MPa is listed.

Electrical Supply

Three-phase, five-wire 380 V, 50 Hz power, up to 18 kW, around 27 A per phase.

Module Fit

One 300 × 300 × 600 mm module fits the bore, with 280 mm of chamber length to spare.

Jacket and Drying

A jacket around the round chamber retains heat and aids drying, according to the series descriptions.

Door Mechanism

Disc-type geared doors with electric locks appear in the series description.

Interlock

The manufacturer's description of its horizontal sterilisers mentions a double-door interlock

Cabinet Size and Weight

The cabinet measures 1,130 × 690 × 1,740 mm and weighs 485 kg net and 585 kg gross on the Blackstone sheet.

The WY-150SM suits small decontamination units, dental and community decontamination rooms, day surgery units and independent hospitals that want pass-through separation and vacuum cycles without plant steam. It is not the right choice for departments that cannot take on a written scheme, interlock testing, and a full set of decontamination records, or whose partition cannot accommodate a 690 × 1,740 mm opening. Before ordering, name an owner for the records, agree the wall opening with the estates team and fire adviser, and plan the 18 kW circuit, water and drain. Medigear.uk lists the WY-150SM for business buyers worldwide and can arrange delivery, installation, commissioning, familiarisation and service cover. Ask the enquiry team for the EN 285 test results, the interlock logic, the installation drawing and the programme list before ordering.