Best Anti vacuum Valve

VIVOHOME Dual Stage Rotary Vane HVAC Air Vacuum Pump with Electronic Digital Refrigerant Charging Weight Scale

HEAVY-DUTY VACUUM PUMP - Made of die-cast aluminum housing and a composite anti-slip rubber base, it is lightweight and durable.
Perfect for those who are looking to self diagnose or recharging AC systems.
It maintains air conditioning systems by effectively removing moisture before refilling the refrigerant.
COMFORTABLE & PORTABLE DESIGN - Ergonomic grip handle is designed for superior comfort and portability.
Built-in high volume cooling fan for extended use.
The low noise design can effectively reduce motor vibration and make the vacuum pump run quieter.
CONVENIENT TO OPERATE - VIVOHOME air vacuum pump features a simple oil fill port for a clean pour, and the oil window provides you with vital information like oil level and oil quality.
The oil drain valve at the bottom ensures faster and more thorough emptying.
1 bottle of 500ml vacuum oil is also included.
AUTO-SHUT OFF - Automatically shuts off after 10 minutes of non-use.
Backlight will shut off after 3 minutes of non-use.
This refrigerant scale features an auto-zero button which gives the technician the ability to set the value at zero after the weight of the cylinder is measured, which helps in recording the measurements accurately.
FAIL-SAFE DESIGN - Display will state, "FULL" when the load exc....

【15 PCS VACUUM SLEAER ZIPPER BAGS 】:5pcs small size 8.3x8.7in/21x22cm,5pcs medium size 10.2x11in/26x28cm,5pcs Large size 10.2x13.4in/26*34cm ,with 1 bag clips,keep your food fresh,moisture-proof, anti- deterioration, anti-worm, more longer storage,food storage freezer safe. suitable for using with any sous vide cookers, such as Anova, Joule, and more..
【Approved Food Safe & Cost-Effective】 Sous vide bags vacuum are made of approved food safe material, freezer safe and cook safe(sous vide cooking). Each reusable sous vide bags can be reused for more than 10 times..
【EASY TO USE & REUSE & MAINTAIN 】 Takes just few seconds to vacuum reusable sous vide Bag, seal it by using white clips, and pump out the air through the valve, then start cooking or food storing. As for daily maintenance, the vacuum food storage bags are easy to clean with vinegar, dish soap and warm water then store it in a clean and dry place before using again..
【WORK WITH MOST VACUUM SEALER MACHINE】 The Vacuum Sealer Bags are compatible with most handheld vacuum sealer machines. Reinforced double zipper to maximize air removal and ensure an airtight seal. Constructed of strong, multi-layer material to block moisture and oxygen efficiently..

► [Revolutionary Operating Method] - VELMADE 2 in 1 New Unique Valve Technology. Compress vacuum space saver bag by sitting or regular vacuum....
►[Large capacity] - 1 cube vacuum bag is equivalent to 4 planar vacuum bags.3 x large cube vacuum storage bags（31.5 * 39.4 *15 inches ） 3 X....
► [High-Quality Materials] - PE & PA materials, double zip seal, reasonable design features it more puncture and tear-resistant, anti-leak,....
►[Meet Variety Needs] - Made from strong material, our jumbo vacuum storage space saver bags meet for a variety of purposes, such as bedroom....
►[Warm-Hearted After-Sales] - We are so confident about the quality of our vacuum storage bags that we will offer you a lifetime free replacement on....

High reliability – generous lubrication of moving parts. Safe process and systems – fast acting inlet valve for best in class anti‑suck back protection..
Configured to meet your vacuum needs – mode selector and two position gas ballast. No unplanned downtime – designed for easy maintenance..
Better work environment – quiet running and intrusive frequencies minimised. Two position gas ballast allows either 60 g/hr or a class leading 220 g/hr (290 g/hr on RV12) of water vapour to be handled. Universal motor to cover the widest possible voltage and frequency range from a single variant..
Smooth controlled inlet valve opening by oil pressure to eliminate pressure surges. Rapid closing inlet valve within 0.4 seconds of pump stopping..
Pump oil is not included, please purchase the pump oil separately.Recommended oil:Ultragrade 19(Not inculded).

Equipped with double vacuum meters and taps, two taps can use separately or together..
New improved anti-corrosion four meters and taps, four taps can use separately or together..
Storage tanks using a newly developed special plastic material, containing acetone, ether, chloroform and other organic chemicals operations, with some corrosion resistant dissolution. .
Silencer with a special fluid, reduce water, gas and liquid friction noise, so that higher and more stable vacuum. .
It can be equipped with vacuum regulating valve as required by clients..

With reflux valve for distillation under total reflux.
Unique design vapor seal maintains vacuum.
5L Evaporating Flask Capacity with flat flange.
With feeding valve and bottom drain valve for continuous operation without interruption of vacuum.

Tube Amount: 1. Dual-use pump, supply vacuum condition while circulating cooling water for reactor..
15L Tank & Quiet Use: large 15L water tank, with a removable case for quick water/ice in. Silent use with special fluid muffler reduces the noise and liquid friction. Have a check valve on the exhaust tube, which can prevent unplanned vacuum downtime on working..
2 Suction Tap: To suit different circumstances, it can be operated with a single tap or use both taps simultaneously for higher efficiency..
Premium Quality: This machine is upgraded with anti-corrosion and anti-rust copper, ABS material, which will avoid the devices to be contaminated and lengthen its service time..
Versatile Application: Perfect for labs, research center, chemical industry, pharmacy, biochemistry, foodstuff, pesticide, agricultural engineering, biological engineering, etc..

With reflux valve for distillation under total reflux.
Unique design vapor seal maintains vacuum.
5L Evaporating Flask Capacity with flat flange.
With feeding valve and bottom drain valve for continuous operation without interruption of vacuum.

The Only Vacuum Certified Valve Core Removal Tool!.
Easily remove access valve cores for full, unrestricted flow.
MegaSeal cap made from aircraft aluminum and molded neoprene gasket, reliably seals under pressure and vacuum.