Monthly Archives: August 2015

Types of Autoclaves

An autoclave is a device that is used to sterilize medical, beautician and other equipment such as tattooing and piercing paraphernalia. The basic function of the machine is to kill bacteria. This is done through application of extreme heat, steam and pressure to the articles placed in the sterilization chamber. This is accomplished by the removal of air from the sterilization chamber to create a vacuum, then superheated steam is applied. There are several types of autoclave in use.



Downward Displacement

  • The downward displacement autoclave is also referred to as a gravity displacement unit. This is because of the method of air removal in the sterilization chamber. A heating element is submerged in a pool of water, which, when heated, becomes steam. As steam is lighter than air, it forces the air in the sterilization chamber downward and out through a drain hole. Once the temperature in the sterilization chamber is sufficient, the drain hole is closed automatically and the sterilization process begins.

Positive Pressure Displacement

  • A positive pressure displacement autoclave is an improvement upon the design of a downward displacement unit. Steam is created in a second, separate chamber and held until the proper amount to displace all of the air in the sterilization chamber is accumulated. The steam is then released into the sterilization chamber in a pressurized blast, forcing the air out through the drain hole and starting the sterilization process. This has the effect of a more accurate displacement of air than a downward displacement unit can achieve.

Negative Pressure Displacement

  • A negative pressure displacement autoclave is one of the most accurate types of unit available. Once the sterilization chamber door is closed, a vacuum pump removes the air. Steam is created in a second, separate chamber. Once the air has been completely removed from the sterilization chamber, the steam is then released into the sterilization chamber in a pressurized blast much like that of a positive pressure displacement unit. The negative pressure displacement unit is able to achieve a high “Sterility Assurance Level” (SAL), but the system can be quite large and costly.


Triple Vacuum Autoclave

  • A triple vacuum autoclave is set up in a similar fashion to a negative pressure displacement unit in that there is a vacuum pump to remove air from the sterilization chamber and steam is created in a second, separate chamber or unit. The process begins by the vacuum removing the air, then a pulse of steam. This is repeated three times, hence the name “triple vacuum” autoclave. This type of autoclave is suitable for all types of instruments and is very versatile.

Type “N” vs. Type “B”

  • Each autoclave can be classified as a type “N” unit or a type “B” unit. Type “N” units do not use a vacuum to remove air from the sterilization chamber, whereas type “B” units do use a vacuum pump. The difference in operation means type “N” autoclaves are suitable for a specific type of load–for solid, unwrapped instruments. Type “B” autoclaves can be used on wrapped and hollow instruments, which means a piece of equipment can be sterilized now for use later.
Class B Tabel Top Autoclave

Class B Tabel Top Autoclave_Bluestone Autoclave

More information about autoclave,please refer to :

Steam Sterilizer Autoclave Machine, Sliding Door, Digital Display and Automatic Autoclave VA-SA100

Comment: Dear Sir/Madam,

I am interested in acquiring a quote for your VA-SA100 including shipment cost to Kingstown, St Vincent and the Grenadines.

Thanks much.



Steam Sterilizer Autoclave Machine, Sliding Door, Digital Display and Automatic Autoclave VA-SA100 Instructions and Principle:

Automatic control over the processes of filling water, heating, sterilization, steam exhaust and dryness.
1. Fully stainless steel material Automatic Autoclave.
2. Horizontal sliding door, self- bulge seal ring, operated easily.
3. Door safety lock system, the door is made of high performance heat insulation material.
4. Positive pressure pulse function exhaust cool air of chamber thoroughly and ensure the steam saturation.
5. Micro-computer control technique, touch-key, LCD display the menu.
6. Built-in water tank. Steam and water circulation system, no external water source, not exhaust steam outside, environment is clean and dryness.
7. Preheating control function.
8. Automatic Autoclave With two stainless steel sterilizing baskets.

Verticlave Autoclave

Verticlave Autoclave

Safety Device:

1. Safe protection of water lacking
2. The program will be stopped if water level lower than the low limit.
3. The buzzer alarms when a cycle of operation is completed.
4. Over temperature&over pressure auto-protection.
5. Over current protector.
6. Door safety interlock: The door cannot be opened until there is no pressure in the chamber and power for heating cannot be switched on until the door is firmly closed.
7. Safety valve of auto release against over-pressure.

More information about Automatic Autoclave ,please refer to :

Pulsating Vacuum Desktop Steam Sterilizer TS-DDV

Comment: Pulsating Vacuum Desktop Steam Sterilizer, LCD display and built-in mini printer -Bluestone Ltd.

Model:  TS-DDC20, TS-DDV24, TS-DDV35, TS-DDV50

what are your prices for these units. looking to buy one of them.

TS-DDV Class B Autoclave

TS-DDV Class B Autoclave

Pulsating Vacuum Desktop Steam Sterilizer, LCD display and built-in mini printer Instructions and Principle:

1. Standard Class B with three times vacuum and drying, the remaining humidity of sterilized instrument is less than 0.2%.
2. LCD display working status, touch keys.
3. The vacuum data can reach -0.8bar, it fits various instrument, including package, unpackaged, solid, hollow,multi-apertures and inset pipes. It makes sure the instrument can be sterilized completely.
4. Fully computer controlled LCD display bright show. The interface is modularized panel for easy operation.
5. It is installed with BOWIE&DICK which measures the penetration of water steam.
6. It has vacuum text which can make sure the ability of texting vacuuming.
7. Fast and independent steam generator.
8. Built-in mini printer which can record the sterilizer information.
9. Safety valve, Safety lock door system, Pressure or temperature overload protection, Alarm system.
10. Can inactivate HIV, HBV, mad cow virus and bacillus.

Pulsating Vacuum Desktop Steam Sterilizer TS-DDV35/TS-DDV50

Pulsating Vacuum Desktop Steam Sterilizer TS-DDV35/TS-DDV50

More information about Pulsating Vacuum Desktop Steam Sterilizer,please refer to

How to Calibrate an Autoclave shared by

Medical equipment is commonly sterilized in autoclaves. They are also used in microbiology laboratories. Autoclaves are available in many sizes. The smallest is a stovetop pressure cooker. Like our model PA-BM Portable Autoclave-Bluestone Autoclave. Countertop models are used in dentist’s offices and small medical clinics. Like our model TS-DDZ Dental Autoclave-Bluestone Autoclave. Large solid-state controlled autoclaves are common in laboratories and hospitals. Like Model HA-BC Horizontal Medical Autoclave-Bluestone Autoclave. All autoclaves have temperature and pressure gauges, as well as a timer. Quarterly calibration of the autoclave timer and gauges is important to insure that proper sterilization is occurring.

Portable Autoclave PA-BM_ BLuestone Autoclave

Portable Autoclave PA-BM_ BLuestone Autoclave

Dental Autoclave TS-DDZ - Bluestone Autoclave

Dental Autoclave TS-DDZ – Bluestone Autoclave

Horizontal Autoclave - Bluestone Autoclave

Horizontal Autoclave – Bluestone Autoclave

Timer Calibration

  1. Set the timer on the autoclave for a full cycle. Hold the stopwatch and be prepared to click it.
  2. Turn on the autoclave and the stopwatch simultaneously.
  3. Repeat the process if the time and the stopwatch do not match.
  4. If the autoclave timer differs from the stopwatch time by more than 30 seconds, post an appropriate correction factor directly on the autoclave.
  5. Note the calibration results in a logbook.

Temperature Calibration

  1. Place the maximum registering thermometer near the built-in temperature sensor.
  2. Load and operate the autoclave as usual.
  3. Record the maximum autoclave temperature according to the built-in temperature display.
  4. Let the autoclave cool.
  5. Remove the maximum registering thermometer from the autoclave and record the temperature reading in the logbook.
  6. Record the discrepancy if the maximum temperature of the built-in display is different from the maximum temperature on the registering thermometer.
  7. Post a correction factor on the autoclave control panel if the temperatures were different.

Pressure Calibration

  1. Calibrate the timer and temperature gauges before these steps.
  2. Load and operate the autoclave as usual. When the temperature display shows 121 degrees Celsius, the pressure gauge should show 15 pounds per square inch (15 psi).
  3. Record the discrepancy if there is any.
  4. Mark the correct point for 15 psi on the cover of the gauge and post a correction factor on the autoclave if this is not true.

More information about our product, pls refer our website:

Inquiry about VA-FJ Vertial Steam Sterilizer Medical Autoclave – Bluestone Autoclave

Comment: I’m interested in your product Multi-Function Hospital Sterilization Equipment VA-FJ,I would like some more details: What is the best price you can offer?
I look forward to your reply.

Vertical Autoclave_Bluestone Autoclave

Vertical Autoclave_Bluestone Autoclave

Main Features of VA-FJ Vertical Autoclave Steam Sterilizer from Bluestone Autoclave.

1. Fully stainless steel structure.

2. Indicator light indicates working state.

3. Over temperature & over pressure auto-protection.

4. Double scale indication pressure gauge.

5. Safe protection of water lacking.

6. Automatically shut off with beep reminding after sterilization.

7. Easy to operate, safe and reliable.

8. With two stainless steel sterilizing baskets

More product information, pls refer our website:

Vertical Autoclave manufacture, supplier & Distributor_Bluestone Autoclave

Vertical Autoclave manufacturer, supplier & Distributor_Bluestone Autoclave

Inquiry for 18L Automatic Autoclave

Comment: Good Morning Team,

Please advise the price and availability of the following:
Automatic Autoclave Steam Sterilizer Oven 18L

Automatic Portable Autoclave_Bluestone Autoclave

Automatic Portable Autoclave_Bluestone Autoclave

PA-ND Digital Portable Autoclave Features:

1. Fully stainless steel structure.

2. Hand wheel type of quick-open door structure.

3. Digital display of  working status, touch type key.

4. Automatically shut off with beep reminding after sterilization.

5. Electric heated.

6. Easy to operate, safe and reliable.

More information, pls refer our website:

portable combo

Portable Autoclave_Bluestone Autoclave

Hospital demand for 50L Steam Sterilizer

Hospital demand is:
1.Volume  50 litters.
2. Sterilisation  from 1 min to 250 min.
3. Temperature range:   105C-135C
4. With monitor
6. Monitor temp. image range 105C-137C.
7. Pressure range 0.021-0.206MPa
8. Maximum Pressure 0.26Mpa.
9. Power: 220 volt 50Hz.
Please send me your best Price for 2 device and full specification.


VA-SD Vertical Pressure Steam Sterilizer Instructions and Principle:

1. Fully stainless steel stricture Steam Sterilizer .
2. Hand wheel type of quick-open door structure.
3. Door safety lock system.
4. Digital display of working status, touch type key.
5. Auto discharge the cool air, and steam discharging automatically after sterilizing.
6. Over temperature and over pressure auto-protection.
7. Safe protection of water lacking.
8. Self-inflating type seal.
9. Automatically shut off with beep reminding after sterilization.
10. VA-SD Vertical Steam Sterilizer With two stainless steel sterilizing baskets.
11. Possible to install drying system according request.




More information about 50L Steam Sterilizer,please clink :


Inquiry About Vertical Vacuum Autoclave for sale, Bluestone Autoclave

Comment: I need to talk to a sales representative for a quote.
Interested in vertical autoclave model:
City: Kennewick/WA
Vertical Vacuum Autoclave_Bluestone Autoclave

Vertical Vacuum Autoclave_Bluestone Autoclave

Main Features of Vertical Vacuum Autoclave VA-SVN

1. Automatically controlled by computer, digital display of working status, touch type key, with built-in printer.

2. Dynamically showed the temperature, pressure time and vacuum rate, and the full cycle.

3. Fully automatically route for water inlet, pulse vacuum, heating, sterilizing, draining, exhausting, vacuum drying.

4. 3 times pulse vacuum, which make the vacuum rate as -0.081 Mpa, and ensure the high extracting of inner air from dressing, A, B type hollowed appliance.

5. With 4 fixed program for appliance, medical dressing, rubbers and fluid, and the user can also set the program as they need.

6. Equipped with the PT/TT testing connector, easy to run the testing.

7. Multiple pulse vacuum drying after sterilizing, ensure the nice sterilizing.

8. Equipped with 0.22 µm bacteria filter, ensure the sterile air enter the inner vacuum environment, avoid the second contamination.

9. Hand wheel type of quick-open door structure, self-inflating type seal.

10. Adopted with immersed heating, with high heating efficiency.

11. Steam-water inner circulation system: no steam discharge, and the environment for sterilizing will be clean and dry.

12. Automatically shut off with beep reminding after sterilization.

13. Fully high quality stainless, equipped with double stainless steel baskets.

More information about our product, please refer our website :


Vertical Vacuum Autoclave – Blusestone Autoclave

How to autoclave glassware by vertical Autoclave, shared by

Autoclaves are used to sterilize materials. An Vertical autoclave uses steam and reaches 121 degrees Celsius and 15 pounds per square inch to effectively kill microorganisms that may be present on the materials. Autoclaves are used commonly in the scientific and medical fields, but they can also be used to sterilize materials needed for brewing beer or canning at home. If used properly, an autoclave will prevent mold and other types of bacteria from growing on the materials.

Vertical Autoclave_Bluestone Autoclve

Vertical Autoclave_Bluestone Autoclve

  • Instructions

    1.Put on the latex or nitrile gloves. It is important to avoid touching the inside of the glassware with bare hands. The  vertical autoclave can’t remove oils transferred from your hands to the glass.

    2.Tear the aluminum foil into a section 2 to 4 inches bigger than the opening of the glassware. Avoid overhandling the aluminum foil to minimize the chances of contamination.

    3.Cover the opening of the glassware with the flat sheet of aluminum foil. Create a lid by pushing the edges of the aluminum foil down and molding the foil to the shape of the glassware. Assure that there are no holes in the aluminum foil and that it extends at least 1 inch down the outside of the container.

    4.Place the glassware on your heat-resistant tray. If you are autoclaving more than one piece of glassware, do not overload the tray with glassware, or else all items may not reach the necessary temperature.

    5.Insert the tray into the vertical autoclave and close the autoclave securely. Autoclaves in vertical type often have wheels that must be turned to lock the doors shut.

    6.Adjust the setting on the autoclave to the proper time and begin the autoclave cycle. Glassware is typically autoclaved for 20 to 25 minutes on a gravity or dry cycle. Unlike on an oven, autoclave temperatures are preset to standard conditions and should not be changed.

    7.Wait for the cycle to complete and finish exhausting before you open the vertical autoclave door. Wearing your heat-resistant gloves, slowly open the autoclave and remove the sterilized contents.

    More information about products, please refer our website:

  • Autocalve

    Vertical sturdy autoclave for sale – Bluestone Autoclave

How to Sterilize Surgical Instruments in an Office, shared by

Any medical office that performs procedures must have the ability to properly sterilize surgical instruments. Surgical instruments are sterilized to prevent infecting patients by transferring germs and bacteria from one person to another after use. Sterilization is commonly performed with an autoclave machine, like Vacuume Table Top. Autoclave which sterilizes by using heat and pressure to kill microbes and bacteria and offers a quick way to prepare instruments for use.

Class B Vacuum Table Top Autoclave_Bluestone Autoclave

Class B Vacuum Autoclave_Bluestone Autoclave

List of Items Needed

  • Detergent
  • Autoclave
  • Sterilization sheets
  • Gauze
  • Sterilization tape
  • Sterilization indicator strips
  1. Pre-clean all used instruments to remove debris and body fluids. Utilize an approved medical detergent for pre-soaking and cleaning used instruments. Scrub the instruments to remove any debris. Open any closed instruments and scrub by hinges and locks. Visually inspect each instrument after cleaning to ensure it is free of debris.

  2. Remove instruments from the solution and allow to air dry on a towel. Ensure that instruments are thoroughly dry before handling. Arrange dry instruments into appropriate surgical kits or sets. Choose either sterilization sheets or bags for wrapping the instruments for processing.

  3. Lay two sterilization sheets on a flat surface. Place gauze, instruments and a sterilization indicator strip in the middle of the top sheet. Wrap instruments appropriately, and secure the outside edges with sterilization indicator tape to keep edges closed.

  4. Open a sterilization bag, if using. Place instruments, gauze and sterilization indicator strip inside the bag. Seal with sterilization tape.

  5. Place wrapped instruments inside the autoclave machine. Process the instruments inside the autoclave by following sterilization guidelines and recommendations for machine use by the manufacturer. Inspect each package for wet spots or surfaces, once autoclaving is complete. Reprocess wet packs by first letting them air dry and then processing in the autoclave.

Tips and Warnings

  • Surgical instruments must be wrapped in material intended for use in an autoclave machine, Like Table Top  Autoclave. Instruments must be double-wrapped or wrapped in a double-ply sheet. Proper instrument wrapping is a skill that must be learned and done correctly to ensure instruments are properly sterilized.
  • Be sure to learn how to operate your Table Top Autoclave machine completely. The proper water amount and heat settings must be achieved to ensure proper sterilization. Small autoclave units are available for office use.

More information about Table Top Autoclave, pls refer our website: ttp://

Class B Tabel Top Autoclave_Bluestone Autoclave

Class B TableTop Autoclave_Bluestone Autoclave