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Jul 01, 2023

Maximus Line MB

Need more information? Let us help you with your inquiries, brochures and pricing requirements Model Internal Dimensions wxhxd External Dimensions wxhxd Volume liters Capacity cu.ft. MB-2831 37" x 49"

Need more information?

Let us help you with your inquiries, brochures and pricing requirements

Model

Internal Dimensions wxhxd

External Dimensions wxhxd

Volume liters

Capacity cu.ft.

MB-2831

37" x 49" x 96"

118" x 95" x 108"

2831

100

Our bulk sterilizers (autoclaves) are commonly found in pharmaceutical companies, vivariums, USDA research facilities, Biotech facilities and University laboratories. Theses are designed for highly effective sterilization of hard goods, pours material and liquid applications in the laboratory field utilizing clean saturated steam as the sterilization medium.

Sterilco cGLP steam sterilizer fulfills the stringent requirements of the current Good Laboratory Practices (cGLP's).

All of our sterilizers can be custom made to fit the needs of user.

The sterilizer can be constructed as a single or double-door pass-through unit and can be mounted in one wall or between two walls.

The sterilizer is designed to be mounted in a 24” deep pit, which will allow the chamber floor to be even with the facility floor for ease in loading and unloading. The sterilizer comes with ramps to cover the gap between edge of the pit and the chamber floor. The ramps are designed to be manually raised and lowered according to the door position.

Construction meets or exceeds the requirements or recommendations of:

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 chambers are rectangular in design and fully jacketed.

The chamber is 316L stainless steel with fully welded construction. Steam baffles are positioned in the chamber to minimize wetting by condensate and ensure proper steam distribution within the chamber.

The jacket is constructed of 316L stainless steel, is ASME stamped for 45 psig/144 °C Design Temperature, and mounted to the chamber with our unique double-plate beam construction. C-channels are stitch welded to the exterior of the chamber to allow for maximum expansion and contraction without the risk of cracking the weld. An additional stainless steel plate is welded over the C-channels to create a complete steam jacket, which allows for jacket steam penetration within and in between the C-channels. This unique jacket construction allows for very tight chamber temperature distribution, decreases the time needed to bring the chamber up to sterilization temperature and prevents the formation of condensate on the chamber walls.

Horizontal Sliding Door

The sterilizer is equipped with horizontally sliding doors. The horizontally sliding doors are pneumatically powered and opened and closed via the OIT. The door is equipped with a leading edge strip that automatically reverses the door should an obstacle be in the door way. In addition, the door cylinder utilizes a low-pressure air system equipped with pressure relief valve to ensure that the pressure cannot build in the system and allows easy override of the door. The door open button is a momentary contact; however, the door close button must be continually depressed during movement. The door will automatically reverse if the door close button is released.

The door is sealed by filtered air pressurizing the continuous O-ring gasket, which is recessed within the chamber head ring against the door. The gasket is retracted by vacuum before the door is opened. Double-door units are safety interlocked so only one door may be opened at one time, which ensures the proper flow from load side to unload side.

The exterior of the jacket is covered with 2” thick chloride-free insulation. The insulation is encased within sturdy stainless steel and sealed for water tightness.

The sterilizer chamber is secured to a welded structural frame. The frame is constructed of 304 stainless steel. Adjustable screws at the base of the frame allow for leveling during installation. The sterilizer is constructed in a modular form which allows for easy breakdown of the unit to aid in moving through doors and hallways during installation.

The chamber drain is equipped with a bleed valve that enhances the movement of steam within the chamber and through the bleed lines. The constant flow past the drain RTD ensures accurate temperature control.

Piping on the sterilizer is constructed from brass or copper. All plumbing fixtures and components are readily accessible and removable without requiring major disassembly of the unit.

The steam traps are thermostatic, non-proprietary, industrial-grade, and are positioned and sized for maximum efficiency for the removal of air and condensate from the system.

All control valves are non-proprietary, industrial-grade and pneumatically operated. Chamber steam control is provided by two on/off control valves to provide chamber temperature control within ± 1 °C or better throughout the chamber during exposure.

The chamber and jacket are protected from over-pressure by ASME stamped safety relief valves. Safety relief devices are factory preset for the vessel design pressure.

The chamber is equipped with two stainless steel sanitary, 1 ½” tri-clamp ports for use for validation and one sanitary, clamp-type port for use for a load probe(s) if equipped. Each is constructed of and equipped with blind flanges. They are located in the maintenance space for easy accessibility and are sloped towards the chamber for proper drainage. Additional ports can be ordered as an option.

The liquid ring vacuum pump efficiently removes air from the chamber prior to the sterilization of wrapped or porous loads. A deep vacuum during the drying step also ensures permeable loads are free of trapped condensate when removed from the chamber.

Chamber air routes through a 0.2 micron sanitary hydrophobic filter.

Exhaust cooling protects the facility drainage system by automatically mixing effluent with cooling water to reduce the temperature to an acceptable level. A temperature sensing device located in the exhaust drain opens a mixing valve to introduce cooling water whenever the temperature exceeds the set point. This feature greatly reduces cooling water consumption. Discharge temperature is influenced by the temperature of the cooling water supplied; however, it will typically be 60 °C (140 °F) or less when cooling water is 21 °C (70 °F) or less.

Siemens PLC Control System

The Siemens S7-200 PLC provides automatic control of all the sterilizer functions. The PLC is equipped with a central processing unit providing high-level data access through an RS 232 network. The PLC is mounted in a UL Listed NEMA 4/12 panel.

A LCD display with touch screen function is provided for operator control, cycle programming and indicates the sterilizer operating state. Alarms are announced audibly and indicated in clear text. The operator interface is mounted on the front fascia, on the loading side of the sterilizer.

Double door sterilizers are equipped with a digital operator interface panel for door operation and cycle progress monitoring

The software is configured to GAMP 4 regulations as follows:

The data logger provides digital printout of cycle progression and information including any fault statements during the entire cycle. The following process parameters are recorded on the 24-character 2¼” impact printer with take-up reel.

A Resistance Temperature Device (RTD) is placed in the drain line (coldest spot of the chamber) to sense and control temperature within the chamber. The RTD emits a signal to the PLC which in turn controls the chamber steam valve.

The temperature distribution is within ±0.1 °C of set point throughout the chamber during sterilization. Temperature readout and printout are provided in 0.1 °C increments.

The chamber pressure and temperature and jacket pressure is displayed on pressure gauges mounted above the chamber.

An analog pressure transducer senses chamber and jacket pressure. Chamber and jacket temperatures are sensed by platinum RTD’s.

Dry Goods - Vacuum Cycle (Standard)

This cycle provides effective sterilization of hard goods, rubber stoppers, filters, linens, and other porous materials, wrapped goods, and product that is unaffected by vacuum. The load is preconditioned utilizing vacuum and steam pulses. The cycle then advances to heat-up and continues till 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, deep vacuum or vacuum pulses which is highly effective at removing moisture from the load.

Solution Cycle - Gravity Air Removal / Ramped Exhaust (Standard)

This cycle 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 till 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 sterilizer is extensively tested at our factory prior to shipment to ensure a trouble free start-up of the sterilizer once it arrives at the purchaser’s facility. Tests include mechanical check out, electrical check out, control system check out, input/output testing, alarm initiation testing, operational check out.