Products / Laboratory Steam Sterilizers / Unisteri
Overview
Unisteri swing door steam sterilizers are designed to offer a compact footprint and are ideal for sterilizing laboratory materials, such as instruments, textiles, rubber goods, liquids agars, and animal diet and cages. With a range of options, including recessed wall mounting, EN285 compliant air detectors, and effluent sterilization cycles, Unisteri sterilizers can be configured to match your exact requirements while providing unmatched quality, reliability, and value.
Standard Features
Customizations
Standard Features
- Space saving design – less floor space required
- Single-door or double-door pass-through versions
- 8.4″ color touch-screen
- Double microprocessor control system
- 316L stainless steel champer and 316Ti jacket
- Hinged fascia panels with key lock for easier maintenance
- Automatic motor driven doors locking system
- Mechanical vacuum pump for consistent vacuum performance
- Water recirculation for vacuum pump – reduces water consumption up to 75%
- Double pressure sensors ensure the chamber is equalized to atmosphere before the door(s) can be unlocked.
Customizations
- 4.5″ printer and chid card reader for individual program storage
- Operator interface added to the unload side of the sterilizer
- <10 Ra mirro finish chamber
- Recessed into a wall with sealing frame
- Stainless steel piping and valves with threaded or tri-clamp fittings
- Air detector to meet EN285 requirements
- Air compressor for when facility air is not available
- Effluent sterilization cycle and BSL-3 bio containment seal for biohazardous waste
Contact us today for more Sterivap customization options and pricing.
Unisteri Construction
Chambers
Hinged Doors
Chamber Jacket
Piping System
Control System
Chambers
Unisteri sterilizers are equipped with chambers made entirely of 316L stainless steel for superior durability. The chamber is constructed in accordance with ASME Section VIII, Division 1, for unfired pressure vessels and so stamped for 45 psig/144°C design temperature and full vacuum. The chamber is rectangular in design and jacketed. Steam baffles are equipped in the chamber to minimize wetting by condensate and ensure proper steam distribution within the chamber. The chamber floor is slopped toward the drain to allow for complete drainage of condensate.
Hinged Doors
Unisteri sterilizers can be equipped with one or two doors. The doors are constructed of 316L stainless steel and swing open to either the left or to the right depending on customer choice at time of order. The doors have a motor driven locking system that automatically locks the door when placed in the closed position. Double door units for pass-through operation are interlocked so that only one door can be opened at one time. The doors are locked whenever pressure is present and cannot be unlocked until the chamber reaches atmospheric pressure.
Chamber Jacket
Unisteri chambers are equipped with a 316Ti jacket for superior corrosion resistance to plant steam. The jacket is utilized to preheat the chamber prior to sterilization and aids in reduction of condensate. The heated jacket also helps during the drying phase of the cycle for textiles or other porous loads. As an option, the jacket can be utilized to aid in cooling liquid loads by applying cooling water to the jacket.
Piping System
Unisteri steam sterilizers come equipped with copper and brass chamber piping. Valves are industrial grade for reliability and constructed from brass as standard. Stainless steel piping and valves with either threaded fittings or sanitary clamp fittings are available as an option. All piping is insulated and color coded for hot and cold services.
Control System
The heart of the Unisteri control system is the double microprocessor that independently monitors itself to be sure of accurate process data and double control for safety. The control system is equipped with a RS232 port for connection to a PC or network and can be equipped with a SD memory card for cycle data storage. (20) programmable cycles can be stored with a wide range of programmable parameters. Alarms are announced audibly and indicated in clear text. Cycle parameters and calibration are password protected from unauthorized access. Automatic system diagnosis ensures trouble free operation and easy trouble shooting in case of error.
- Double microprocessor control system
- 8.4” Color touch screen operator interface
- (20) Programmable cycles with a wide range of parameters
- 4.5” Wide printer with digital and graphic printout
- RS232 Port for connection to PC or network
- Optional chip card system for storage of individual cycles
- Automatic start-up and shut-down of utilities
- Automatic diagnostic system displayed on OIT and printed on report print out
- Alarms are announced audibly and indicated in clear text
- Dual temperature sensors provides precise control, evaluation and regulation of temperature inside the chamber
- Dual absolute pressure sensors are equipped for precise control of pressure and vacuum inside the chamber and pressure inside the jacket
- 21 CFR, Part 11 compliant password protection built-in
- PC software for electronic cycle data storage
Unisteri Sterilization Cycles
Unisteri sterilizers can be programmed with any combination of the sterilization cycles described below with configurable parameters for each cycle phase. The programmed cycle recipe is stored in the sterilizer’s control system memory and is recalled and started with the touch of a button on the operator interface. All recipes are also protected from unauthorized changes via a multi-level authentication system.
The dry good cycle provides effective sterilization of hard goods, filters, linens, and other porous materials, wrapped goods, and products that are unaffected by vacuum. The load is preconditioned utilizing vacuum and steam pulses. The cycle then advances to heat-up and continues until it reaches the settable exposure temperature of 110°C up to 135°C. Once the exposure temperature set point is reached, the controller counts down the exposure time. After the exposure time is completed, drying begins and can be accomplished by fast exhaust and pulling a deep vacuum to remove moisture.
This cycle provides effective sterilization of rubber stoppers, hoses, and other material where trapped moisture can be difficult to remove. The load is preconditioned utilizing vacuum and steam pulses. The cycle then advances to heat-up and continues until it reaches the settable exposure temperature of 110°C up to 135°C. Once the exposure time is completed, drying begins and is accomplished by fast exhaust, vacuum, and air pulses which are highly effective at removing moisture from the load. To aid drying further, the air can be heated.
The solution cycle with gravity effectively sterilizes liquid products or items in vented or sealed glass containers. The load is preconditioned utilizing steam pulses. The cycle then advances to heat-up and continues until it reaches the settable exposure temperature of 110°C up to 135°C. Once the exposure temperature set point is reached, the controller counts down the exposure time. After the exposure time is completed, exhaust ramping gradually returns liquids to a temperature below boiling.
The solution cycle with gravity effectively sterilizes liquid products or items in vented or sealed glass containers. The load is preconditioned utilizing steam pulses. The cycle then advances to heat-up and continues until it reaches the settable exposure temperature of 110°C up to 135°C. Once the exposure temperature set point is reached, the controller counts down the exposure time. After the exposure time is completed, cooling of the product is started by injecting air at a pressure similar to that of the product to avoid breakage of the container. Cold water is introduced to the jacket of the chamber to help cool the product at a faster rate.
Sterivap sterilizers can be equipped with optional effluent sterilization cycles suitable for BSL-3 laboratory applications. During effluent sterilization cycles, all steam effluent is captured, filtered, and sterilized prior to being drained out the chamber, ensuring laboratory staff and the environment are further protected from contamination.
Sterilizer Steam Source
BMT USA steam generators are designed to provide pure or clean steam to meet the requirements of your sterilization application. The units can be configured as stand-alone units to be used as a central source of steam for multiple units, or directly built into the sterilizer for a fully integrated solution. BMT USA steam generators utilize high grade non-proprietary components and can be electrically heated or heated by plant steam.
Electric Heated Steam
BMT USA electric clean steam generators are equipped with an ASME pressure vessel constructed from 316L stainless steel. The heating elements require three-phase voltage that can be specified at time of order. The units are equipped with an automatic blow-down system that carries impurities to drain. Feed water booster pumps are available when feed water is not available at the required pressure.
Steam-to-Steam
BMT USA steam-to-steam generators utilize plant steam as the heating source to produce clean steam. The tube and shell heat exchanger is made from 316L stainless steel and can be built in single-tube or double-tube configurations. The evaporator utilizes a wetted design that minimizes the temperature difference between the feed water and the heating steam, reducing stress on the evaporator tube sheet.
Sterilizer Loading Equipment
Enhance the functionality of your Unisteri sterilizer and maximize useable space in the chamber with stainless steel loading equipment in standard or custom designs to accommodate any type of load. Unisteri sterilizers can be equipped with adjustable wire or perforated chamber shelves and loading racks, as well as loading carts and transfer trolleys. Carts with drop down wheels are also available for rooms with limited space.
Unisteri Chamber Sizes
Model
Chamber Dimensions
(W X H X D)
External Dimensions
(W X H X D)
Chamber Volume
(ft³/Liters)
Doors
Single or Pass-Through
336-1
Chamber Dimensions
12.5″ x 12.5″x 24.6″
320 x 320 x 625 mm
320 x 320 x 625 mm
External Dimensions
23.6″ x 59″ x 31.6″
600 x 1500 x 805 mm
600 x 1500 x 805 mm
Chamber Volume
2.57ft³/73L
Door Slide Direction
Single
336-2
Chamber Dimensions
12.5″ x 12.5″x 24.6″
320 x 320 x 625 mm
320 x 320 x 625 mm
External Dimensions
23.6″ x 59″ x 33.8″
600 x 1500 x 860 mm
600 x 1500 x 860 mm
Chamber Volume
2.57ft³/73L
Door Slide Direction
Pass-Through
636-1
Chamber Dimensions
13.8″ x 26.4″ x 27.6″
350 x 670 x 700 mm
350 x 670 x 700 mm
External Dimensions
27.2″ x 67.7″ x 38″
690 x 1720 x 965 mm
690 x 1720 x 965 mm
Chamber Volume
5.65ft³/160L
Door Slide Direction
Single
636-2
Chamber Dimensions
13.8″ x 26.4″ x 27.6″
350 x 670 x 700 mm
350 x 670 x 700 mm
External Dimensions
27.2″ x 67.7″ x 40″
690 x 1720 x 1020 mm
690 x 1720 x 1020 mm
Chamber Volume
5.65ft³/160L
Door Slide Direction
Pass-Through
559-1
Chamber Dimensions
20″ x 20″ x 38″
509 x 509 x 965 mm
509 x 509 x 965 mm
External Dimensions
33.5″ x 67.7″ x 49.4″
850 x 1720 x 1255 mm
850 x 1720 x 1255 mm
Chamber Volume
8.97ft³/254L
Door Slide Direction
Single
559-2
Chamber Dimensions
20″ x 20″ x 38″
509 x 509 x 965 mm
509 x 509 x 965 mm
External Dimensions
33.5″ x 67.7″ x 51.5″
850 x 1720 x 1310 mm
850 x 1720 x 1310 mm
Chamber Volume
8.97ft³/254L
Door Slide Direction
Pass-Through