Glass Vacuum Chamber, Vacuum Degassing Chamber, 250mL/500mL/800mL Storage Tanks, with Vacuum Gauge, for Lab Sample Preservation, Chemical/Biological Specimen Storage

Product Specifications: - Model with negative pressure gauge: Includes negative pressure monitoring gauge, supports -0.1MPa negative pressure, maintains pressure ≤-0.06MPa for 72 hours, equipped with straight-handle needle valve switch (vacuum pump required). - Compatible Equipment: Can only be filled with an air pump (inlet only, no air inlet, cannot be filled into the canister). Material: Glass 800ml: Inner diameter 87mm / Outer diameter 114mm 500ml: Inner diameter 65mm / Outer diameter 100mm 250ml: Inner diameter 65mm / Outer diameter 95mm Package includes: Main unit *1

• 【Precise Negative Pressure Monitoring】: Equipped with a vacuum gauge, the head can achieve a high negative pressure of -0.1MPa, with clear and intuitive dial readings; pressure maintenance performance ensures the pressure remains stable below -0.06MPa for 72 hours.
• 【Easy Operation】: Employs a straight-handle needle valve switch for precise gas flow rate adjustment. The needle valve has excellent sealing performance, effectively preventing leakage. The vacuum container is compact and easy to carry (vacuum pump required).
• 【Multiple Capacities Available】: Offers 250mL, 500mL, and 800mL capacities, allowing for flexible selection based on the storage or carrying volume of easily oxidizable samples; the container is made of glass, suitable for the safe storage of various easily oxidizable samples.
• 【Safe Use Guarantee】: The storage container is designed specifically for gas pump intake, equipped with only one intake valve interface, no air inlet, and must not be filled with gas.
• 【Applicable Scenarios】: For storing or carrying easily oxidizable samples, while strictly adhering to safety guidelines: Do not pressurize, do not add liquids, do not heat, and do not freeze or refrigerate.