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Blackstone WY-150D

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Blackstone Sterilisation & Disinfection

Blackstone WY-150D

Product Code: STDI-SE-3898

It generates its own steam, so it doesn't need a boiler connection.

Unless a load is wrapped, porous or hollow, the WY-150D can process it: a 150-litre cylindrical chamber, steam from its own generator and sterilising temperatures from 115 to 138 °C reached by gravity displacement.

Sections

Autoclave

Categories

Sterilisation & Disinfection

Condition

New

Origin

China

Seller Type

Certified Professional Seller

CE & ISO Certified

Global Shipping

Supplier: Medigear

Blackstone builds the WY-150D as a 150-litre single-door gravity-displacement steam steriliser for laboratories and departments that sterilise unwrapped solid items, glassware, media and waste. The cylindrical chamber measures 472 mm across by 880 mm deep. Its sterilising window runs from 115 to 138 °C at a working pressure of 0.23 MPa, inside a vessel designed for −0.1 to 0.3 MPa and 150 °C. The sheet lists no external steam supply and up to 18 kW, consistent with a built-in generator using up to 13 kg of steam per cycle. D marks the single door.

Gravity displacement is the defining feature, and an honest description starts with what is missing. Steam enters and pushes air down and out through the drain, with no vacuum pulses before the hold, so air trapped in wraps, textiles or lumens can remain. Wrapped, porous and hollow healthcare loads therefore belong in a vacuum steriliser. Instead, the design offers independence: its own steam, no boiler connection, up to 30 kg of water per cycle, and a cabinet narrow enough for standard doorways.

Series descriptions describe the WY range as having a circular inner chamber inside a jacket for heat retention and drying, plus a geared door secured by an electric lock. The Blackstone photograph shows red stop and green start buttons, two pressure gauges and a touch-screen display. Water at 0.1 to 0.2 MPa and compressed air at 0.4 to 0.7 MPa complete the supplies, with 18 kW drawing about 27 A per phase. The enquiry team shares the programme list, any liquid cycle, the drying method and cycle times.

The cabinet is 1,260 mm long, 690 mm wide and 1,740 mm tall. Medigear. UK offers it to buyers in more than 80 countries, and the enquiry team provides stock and lead times.

Hospital and university laboratories, microbiology and pathology departments, research facilities and clinics that reprocess unwrapped solid instruments are the natural buyers for the WY-150D. Culture media, glassware, water, laboratory waste, and unwrapped metal instruments are the loads its gravity cycle is built around, and its steam generator lets it work wherever three-phase power, water, and compressed air reach.

US infection control guidance describes gravity displacement autoclaves as primarily used for laboratory media, water, pharmaceutical products, regulated medical waste and nonporous articles whose surfaces meet the steam directly. The same guidance notes that steam penetration into porous items is prolonged because air removal is incomplete, which is why wrapped, porous and hollow healthcare loads belong in a vacuum steriliser.

Waste is where validation matters most. A hospital study validating cycles for four waste categories found that laboratory and sharps waste needed nine test loads, with the sterilising time doubled to 60 minutes, before biological indicators were inactivated three times in succession. Load size, bag type and the water inside each bag all changed the result, so every laboratory should prove its own waste cycles.

Read honestly, the WY-150D does a narrower job well. A department that knows its loads are unwrapped, solid, liquid or waste gains a self-contained steriliser with no boiler to connect and a short list of loads to train for.

Health services that buy through formal tenders, including the NHS, set out load types and validation needs in their specifications, and laboratory buyers elsewhere work the same way. The conformity documentation those procurement routes require is issued by the manufacturer and shared by the enquiry team.

Its Own Steam, No Boiler Connection

The sheet lists no external steam supply, and the unit's rating covers a built-in generator. Laboratories without plant steam can install it where power, water, air and a drain are available.

Air Removal Matched to Simple Loads

Gravity displacement suits nonporous items and media, where steam meets every surface directly. For those loads, air removal needs no vacuum pulses.

Loading Rules That Are Easy to Teach

Because the limits are clear, the rules are short: unwrapped solids, glassware, media, water and validated waste go in; wraps, textiles and lumens do not. Clear exclusions are simpler to train and audit.

A Cabinet Sized for Standard Doorways

At 690 mm wide, the uncrated cabinet passes most standard doorways. Installation rarely needs widened openings or special lifting routes.

Modest Water Demand

The sheet uses up to 30 kg of water per cycle. The feed and drain can usually be taken from ordinary laboratory services.

A Jacketed Cylindrical Chamber

Series descriptions give the range a circular inner chamber inside a jacket, for heat retention and drying. The cylinder also suits the pressures a steam vessel works under.

An Electrically Locked Door

Series descriptions describe the WY range as having a disc-type geared door secured by an electric lock. The door lock does not rely on hand force.

Clear Controls

The Blackstone photograph shows dedicated stop and start buttons beside two pressure gauges and a touch-screen display. Operators can read chamber conditions at a glance.

Even Temperature Across the Chamber

The sheet lists uniformity within ±2.0 °C. Laboratories validating media or waste cycles have a defined figure to test against.

150-Litre Cylindrical Chamber

The chamber is 472 mm in diameter and 880 mm long.

Gravity Displacement

Incoming steam drives air down and out through the drain, with no vacuum pulses before sterilising.

Built-In Steam Generation

The sheet shows no external steam pressure, and the unit generates up to 13 kg of steam per cycle.

Single Door, Code D

D identifies the single door, used for loading and unloading.

Sterilising Range

Temperature settings span 115 to 138 °C, with 0.23 MPa as the working pressure.

Design Limits

The vessel is designed for −0.1 to 0.3 MPa and 150 °C.

Temperature Uniformity

The sheet specifies uniformity within ±2.0 °C.

Water Supply

Water at 0.1 to 0.2 MPa, with up to 30 kg used per cycle.

Compressed Air

The sheet lists a compressed air supply of 0.4 to 0.7 MPa.

Electrical Supply

Three-phase five-wire AC 380 V 50 Hz, up to 18 kW on the sheet, about 27 A per phase.

Vacuum Figure

The sheet lists −0.086 MPa, which, on this gravity model, most likely serves for drying.

Jacket and Drying

The series description credits the jacketed chamber with heat retention and drying.

Door Mechanism

The series description mentions a disc-type geared door with an electric lock.

Controls and Gauges

Stop and start buttons, two pressure gauges and a touch-screen display, as shown in the Blackstone photograph.

Cabinet Size and Weight

The cabinet measures 1,260 × 690 × 1,740 mm and weighs 390 kg net and 470 kg gross, per the Blackstone sheet.

The WY-150D suits laboratories, research facilities, and clinics that sterilise unwrapped solid instruments, glassware, culture media, water, and waste, and want a self-contained unit with no boiler connection. It is not the right choice for wrapped instrument sets, textiles, other porous loads, or hollow or lumened instruments, which belong in a vacuum steriliser. Before ordering, confirm a three-phase supply for 18 kW, water, compressed air and a drain, and plan validation for each load type, especially waste. Medigear.uk lists the WY-150D for business buyers worldwide and can arrange delivery, installation, commissioning, familiarisation and service cover. Before ordering, ask the enquiry team for the programme list, any liquids cycle, the drying method, the supplied baskets, and the conformity documentation.

FAQ

Frequently Asked Questions

Everything buyers need to know about sourcing medical equipment through MediGear.

It suits unwrapped solid instruments, glassware, culture media, water and laboratory waste- loads that gravity displacement handles well because steam reaches every surface directly. It should not be used for wrapped instrument sets, textiles or other porous loads, or hollow and lumened instruments, because air trapped inside them may not be displaced. UK healthcare practice processes those loads in vacuum sterilisers.

Steam is lighter than air, so in a gravity cycle it fills the chamber from above and pushes air out through the drain. Air held inside a wrap, a textile pack or a narrow lumen has no such exit, and US infection control guidance notes that steam penetration into porous items is prolonged for exactly that reason. Where gravity cycles are allowed for wrapped supplies, that guidance asks for 30 minutes at 121 °C, whereas a prevacuum cycle needs 4 minutes at 132 °C.

No. The Blackstone sheet leaves the external steam pressure blank and rates the unit at up to 18 kW, so it generates its own steam (up to 13 kg per cycle). A series listing for the same model gives 2 kW for the system plus 12 kW for the built-in generator, so plan the electrical supply for the sheet's 18 kW, about 27 A per phase.

Media are among the loads gravity units are typically used for. Liquids need a programme that monitors the load temperature and keeps the door locked until bottles have cooled, because sealed containers can burst or boil over if opened hot. Whether the WY-150D's programme list includes such a cycle, and a load probe, is a question for the enquiry team before planning liquid waste.

Waste cycles need validating on the department's own loads with biological indicators. In one hospital study, laboratory and sharps waste needed nine test loads, and a sterilising time doubled to 60 minutes, before indicators were inactivated three times in a row. Biosafety guidance often adds water to bags and leaves them open so steam can enter. In containment laboratories, the COSHH risk assessment determines how drain and vent discharges are handled.

The cylinder is 472 mm in diameter and 880 mm long, about 154 litres by calculation. A standard 300 × 300 × 600 mm module fits within that diameter and length, with room to spare. The enquiry team includes which baskets or shelves come with the unit in the quotation.

A three-phase five-wire 380 V 50 Hz supply for up to 18 kW, installed to BS 7671 in the UK. Water at 0.1 to 0.2 MPa, up to 30 kg per cycle, behind backflow protection, plus compressed air at 0.4 to 0.7 MPa and a drain. At 390 kg net on a 1,260 × 690 mm footprint, the floor carries about 450 kg per square metre, and the 690 mm width suits most standard doorways once the crate is removed.

In Great Britain, the vessel, built-in steam generator and compressed air system fall under the Pressure Systems Safety Regulations 2000, with a written scheme of examination and competent-person examinations. EN 61010-1 and EN 61010-2-040 cover electrical and steriliser safety. EN 285 describes large porous-load sterilisers, which a gravity unit is not designed to be, so healthcare use on unwrapped instruments is validated to EN ISO 17665. Medigear.uk can arrange installation, commissioning and service cover.

The Blackstone sheet lists a vacuum of −0.086 MPa, yet the gravity cycle removes air without vacuum pulses. Series descriptions credit the range's jacketed chamber with a drying function, so the vacuum most likely serves drying. The enquiry team sets out how the quoted unit uses it, along with the drying times.

Cycle records come from the controller, and the enquiry team sets out how the WY-150D stores and outputs them, whether by printer or data export. Laboratories and healthcare departments that must keep records should settle this before ordering.

Where it sterilises medical devices, the WY-150D is typically Class IIa under UK MDR 2002, or higher depending on use, as stated on the manufacturer's declaration of conformity, which the enquiry team shares. Laboratory and waste work falls outside medical device regulation, and the documentation for that use should cite EN 61010-1 and EN 61010-2-040.