320L Front Loading Steam Autoclave

When You Absolutely, Positively, Must Kill Every Pathogen in the Sample, Accept No Substitutes.

SKU: 320L Front Loading Steam Autoclave


320L Front Loading Steam Autoclave

When You Absolutely, Positively, Must Kill Every Pathogen in the Sample, Accept No Substitutes.

Our highest throughput front-loading autoclave. The 320L is five inches wider than the 200L, with shorter total cycle times, despite being 60% larger. Our cylindrical-chamber 320L directly competes with any 20×20 rectangular autoclave on the market, offering exceptional reliability and unparalleled energy, water, and lifetime cost savings.

The advantages inherent in using a cylindrical-vessel sterilizer become especially apparent with large-volume front-loading autoclaves. By eliminating corners, the cylindrical vessel improves steam circulation, preventing cold pockets and assuring complete sterilization without excessive cycle times. If you aren’t processing flat trays of medical instruments on a daily basis, then you neither need nor want a rectangular-chamber autoclave.

There are also impressive cost-savings associated with moving to a cylindrical-vessel sterilizer. A lower part count, more efficient steam generation, and lighter-gauge pressure vessel don’t just reduce the purchase price, they drastically reduce maintenance and utility costs: On an annual basis, a cylindrical-vessel front-loading autoclave can be expected to use 75% less energy and 87% less water than a comparable “energy/water saving” rectangular model.

Every Priorclave front-loading sterilizer comes outfitted with an advanced Tactrol control system. These industry-favored control systems are optimized for research, offering exceptional cycle customization: One-touch operation, delayed cycle start, media warming, automatic cycle repeat, and more.

Steam Source: Electrically generated in-chamber OR external generator
Operating Range:Up to 277°F, 32 psi (136°C, 2.2 Bar)
Working Dimensions:24.8” (630mm) diameter x 40.2” (1020mm) deep
Chamber Material:Brushed grade 316L stainless steel
Door Material:Burnished grade 316L stainless steel


Priorclave sterilizers are built in the UK to a modular design enabling easy upgrading during their working life as your requirements change. Every steam heated Priorclave is fitted with a Thermostatic Air Purge Valve and an electrically operated Vent Valve. All pipe to pipe joints are brazed with compression joints to specific components (stainless pipework is available). Priorclave autoclaves offer a 36-month limited parts and labor warranty, 20-year pressure vessel warranty, and unlimited technical support.


At Priorclave, the safety of your staff and students comes first. Our Quickseal 2 door with Permission-based Door Release is fitted with thermal and pressure locks to prevent opening at load temperatures above 80°C (176°F) and pressures above 0.2 Bar (2.9 psi) (as per BS 2646). The door is also fitted with a Redundant Safety Gate, so that any residual pressure can safely escape before the door can move freely (in accordance with the UK Health and Safety Executive’s note PM73). All units come with a Pressure Safety Valve set to 2.5 Bar (36.3 psi) and a 150°C (302°F) thermal cut out (per BS 6759); selected external panels and surfaces are thermally insulated. All front loading models have non-tip shelves.

Priorclave is the only manufacturer offering the same fully featured programmable control system on every model, from the smallest laboratory benchtop sterilizer to the largest industrial pass-through unit. The Tactrol 2 system puts every operating parameter within your control, with no re-training required as you move from one unit to another. Using our Tactrol 2 Control System, operators can limit user access to specific pre-programmed validated cycles via fail-safe one-button start. Program modifications are likewise key-switch or password protected.

All Priorclave autoclaves comply with current US, Canadian, UK, and EU safety regulations. They are manufactured under an ISO 9001:2008 quality management system in our UKAS-accredited facility. Our autoclaves and control systems are ETL listed and EMC certified, and feature ASME-stamped pressure vessels. These pressure vessels are manufactured entirely in-house, and tested to 1.5 times their maximum working pressure. They have full insurance approval for pressure vessel design and construction and are CE Marked under the Pressure Equipment Directive PD5500:2000 Cat 3, Certificate Number SS42059010-2 Rev 1. They also conform to the general requirements of BS 2646 and are CE Marked for BS EN61010-2-41, Low Voltage and Electromagnetic Compatibility.

320L Front Loading Standard Features:

  • Quickseal 2 Single Action Door Closure System
  • Permission-based Door Release
  • Easy-to-use Tactrol® 2 Control System
  • Automatic Timed Freesteaming
  • Assisted Load Cooling
  • Media Warming and Delayed Start
  • Chamber Pressure Gauge
  • Thermocouple Entry and Test Ports
  • 316L Stainless Steel Chamber and Door
  • Two full width stainless steel anti-tip Loading Shelves
  • Caster mounted for ease of positioning and service
  • Biomaster Antibacterial Surfaces
  • Water Conservation

Options :

  • Tactrol 5 Program Memory
  • Tactrol 10 Program Memory
  • Tactrol 10 Program Memory Upgrade
  • Tactrol Self-Monitoring System
  • Setting Lock Keyswitch Facility
  • Pulsed Free Steaming
  • Load Sensed Process Timing
  • Water Softener
  • Stainless Steel Pipework
  • Dual Electric & Steam Heating
  • Clean Steam Generation
  • Air Intake Filter System
  • Exhaust Filtration System
  • Air Ballast System – External Air Supply
  • Opposite Hand Door
  • Priorclave Tactrol Printer
  • Load Temperature Indication
  • Chamber Pressure Indication
  • Armored Wandering Probe
  • External USB Port
  • Combined Combined Pre-Cycle Vacuum & Vacuum Cooling
  • Post-Cycle Vacuum Drying
  • Automatic Cycle Repeat
  • Stainless Steel Discard Container
  • False Floor for Discard Container
  • Front Loading Trolley
  • Loading Cassette
  • Stainless Steel Loading Basket
  • Stainless Steel Waste Container
  • Drain Condenser
  • 2 Years Spares Kit
  • 3 Years Spares Kit
  • IQ/OQ Documentation

Technical data

Working Volume320 liters
Operating RangeUp to 136°C, 2.2 Bar (277°F, 32 psi)
Loading FormatFront Loading
Heat InputInternal Electrical OR House Steam Source
Working Dimensions diameter x depth24.8” x 40.2”, 630mm x 1020mm 
Loading Height724mm, 28.5”
Outside Dimensions w x d x h29.9” x 50.4” x 63”, 760mm x 1280mm x 1600mm 
Working Dimensions diameter x depth 24.8” x 40.2”, 630mm x 1020mm 
Bottom Shelf Dimensions w x d x h19.3”W x 40.2”D with 19.8” clearance (upper shelf removed)
Top Shelf Dimensions w x d x h24.4”W x 40.2”D with 12.3” clearance
Floor Weight (unloaded)660lbs (300Kg)
Minimum Installation w x d x h (and Door Swing)53.9” x 104.3” x 75”, 1369mm x 2649mm x 1905mm (29.9”, 760mm)

Ordering info

320L Front Loading Steam Autoclave

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320L Front Loading autoclave.pdf

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Laboratory Autoclave Video Looks at the Priorclave Brand
I. S am p l e p r e p a r a t i o n II. A g ar p r e p a r a t i o n a n d p o u r i n g A g ar/ M e d i a S t e r i li z a t i o n/ P r e p a r a t i o n XY (Z) T u b e & B o tt l e F i l l e r A g ar/ M e d i a F i ll i n g/ P o u r i n g A g ar P l a t e s S am p l e H o m o g e niz i n g S am p l e D i lu t i o n Y o ur S am p l e III. S p i r a l p l a t i n g C o l o n y C o un t i n g I V . A u t o m a t e d c o l o n y c o un t i n g R e s u l t s S am p l e I n o c u l a t i o n