Vacuum Bag Sampler
Overview
Vacuum bag sampler provides fast sampling with zero cross-contamination. The sampler allows sample bags to be filled directly by using negative pressure. It can be used to collect volatile organic compounds (VOCs) and other gaseous samples from fixed pollution sources and ambient air.
We have two models:
ZR-3520 Vacuum bag sampler (for stack emission and aimbient air testing)
ZR-3730 Vacuum bag sampler (for stack emission testing only)
Applications
• Industrial VOCs
• Indoor air quality
• Effluent gas samples
• Stack sampling
• Ventilation studies
• Hazardous Material (HazMat) testing
Standards
• HJ 604-2017 Ambient air - Determination of total hydrocarbons, total methane and non-methane hydrocarbons - Direct injection / gas chromatography
• HJ 732-2014 Emission from stationary sources-Sampling of volatile organic compounds-Bags method
• HJ 38-2017 Stationary source emission―Determination of total hydrocarbons,methane and nonmethane hydrocarbons―Gas chromatography
• GB 13223-2011 Emission standard of air pollutants for thermal power plants
Features
• One button operation. Cleaning and replacement automatically, no need to plug or unplug the bag.
• Built-in battery≥12H.
• Protects sample pump from contamination
• Sample does not pass through the pump
• Sample contacts only inert tubing and bag. Ensure that the collected samples are free from contamination and adsorption.
• Rugged heavy-duty, airtight construction.
Deliver Goods
| Parameters | Vacuum bag sampler | |
| Model | ZR-3520 | ZR-3730 |
| Application | fixed pollution sources ambient air | fixed pollution sources |
| Standards | HJ 604-2017 | HJ 732-2014/HJ 38-2017/HJ 38-2017 |
| Bag capacity | (1～8)L | (1~4)L |
| Working condition | (-20~50)℃(0~95)％RH | Can collect gas of pollution source lower than 150 ℃. |
| Functions | / | Heat tracing in the whole process, prevent condensation water and ensure no pollution of samples. |
| Operation | / | Higher automation with 4-speed regulation |
| Size | (L160×W158×H75)mm | (L350×W310×H250)mm |
| Weight | About 1kg | About 5.5kg |
| Battery | >12h | Continuous sampling for 8 times under full power |
| Sampling flowrate | 4L/min | |
| Sampling negative pressure | >-16kPa | |
| Power supply | AC220V±10% , 50/60Hz | |
| Sample pipe | φ6×800mm | |
Connection of the gas circuit:
The sampling container shall be sampled after at least three times of on-site air cleaning. Use a vacuum box to introduce the air sample into the air bag to about 80% of the maximum volume, and seal it immediately.
1, sampling host 2, vacuum box 3, bag 4, sampling pipe 5, gas pipeline