Our Products

Our offered Product range includes APM 520, APM 460 NL PM 10 Sampler, APM 433 Gaseous Pollutants Sampler, SAMPLER VSS1 PLS Vayubodhan Stack Sampler and Sampler VSS3 Stack Sampler.

APM 460 NL PM 10 Sampler

Purity Lockable top cover and gaseous attachment., Electromagnetic Interference (EMI) to TVs totally eliminated

The APM 460 NL uses an IMPORTED brushless, continuous rated induction motor driven blower to significantly reduce equipment downtime, maintenance efforts and inconvenience to community. This new improved PM 10 sampler avoids problems arising due to frequent brush wear and limited armature life of blowers used in earlier models.

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APM 433 Gaseous Pollutants Sampler

The APM 433 Gaseous Pollutants Sampler has been designed for monitoring Gaseous Pollutants like SO2, NO2, Cl2, H2S, O3, NH3 etc. in ambient air. The APM 433 is an independent stand-alone monitoring instrument (unlike our gaseous sampling attachments APM 411 and APM 411 TE that need to be paired with a dust sampler). A suction pump is also made an integral part of the sampler, besides a flow-meter, time totalizer and timer. Sampled air is bubbled through suitable reagents that absorb specific gaseous pollutants and the absorbing media analyzed as per standard wet chemical methods.

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APM 520

Purity Primary Standard Automatic Photo-optic sensing and timing ensures high accuracy Calibration traceable to national standards Digital display directly in LPM Etc.
Specifications Flow Range:20 ml/min to 2 Liters/min, Accuracy:1%, Operating Mode:

The Envirotech APM 520 Flow Calibrator is designed to provide a reliable and portable flow standard for flow verification of environmental sampling systems. The APM 520 is a primary standard flow calibrator based on a glass body soap bubble meter. Photo-optics based sensing and quartz crystal clock is utilized to provide an automatic and accurate estimate of elapsed time for the soap bubble motion through a fixed volume. Each APM 520 calibrator is tested against positive displacement flow standards traceable to NIST or FCRI, maintained at Envirotech. Optionally third party certification of individual calibrators can be provided at an extra cost.

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SAMPLER VSS1 Vayubodhan Stack Sampler

Feature DigitalPressure Cell in place of cumbersome manometer. Measures total quantity I volume of emissions. Determines velocity of gases. Reduction in size and weight of panel. Extendable arm for pitot and probe pipe. Etc.

The most common and widely used method (world over) is extractive sample method or Grab sampling technique. Grab sampling technique is also often treated as the reference standard method. Grab Sampling technique is not restricted to a specific pollutant. The same system with different reagents may be used for a variety of pollutants and over different ranges of concentration. This Stack Sampler VSS1 is one such Grab Sampler which can monitor Particulate Matter (PM) and any watersoluble gaseous pollutants like SO, , NO., HF, Cl, , H, S, NH, etc., in industrial emissions from Stationary source I Chimney and Vent. PORTABILITY FOR ROUTINE SAMPLING Only repeat and frequent monitoring can give a true insight into the emission characteristics. It is thus more important to have a simpler and handy device, which can be used more often with ease and convenience, rather than a bulky and cumbersome system. At times transportation efforts become more hectic & expensive than the actual monitoring exercise. Based on our experience and valuable feedback obtained from our large group of valuable customers, regulatory authorities, consultants, and R&D Centers, need for improved and Handy instrument has been felt. The Stack Sampler VSS1 has been designed to overcome such problems. The operating principle is simple. The Particulate Matter is collected over a filtration thimble. It entrap and absorbs various gaseous pollutants in suitable reagents, which are analyzed subsequently by simple Wet Chemistry methods to determine the concentration of specific pollutants.

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SAMPLER VSS1 PLS Vayubodhan Stack Sampler

Feature Cumbersome Manometer has been replaced with digital pressure cell Designed to determine the velocity of gases also. Measures total quantity/volume of the emissions very accurately. Size and weight of panel has been reduced considerably. Etc
Specifications Stack Temperature Range: Ambient to 600 deg C and 500-1000C read on separate Digital Pyrometers Etc

The most common and widely used method (world over) is extractive sample method or Grab sampling technique. Grab sampling technique is also often treated as the reference standard method. Grab Sampling technique is not restricted to a specific pollutant. The same system with different reagents may be used for a variety of pollutants and over different ranges of concentration. Stack Sampler VSS1PLS is one such Grab Sampler which can monitor Particulate Matter (PM) and any water-soluble gaseous pollutants l ike SO, NO., HF, Cl, , H, S, NH, etc., in industrial emissions from Stationary source I Chimney and Vent. Utilizing the experience of last 30 years, CPCB in 2015 revised the specifications of the Stack Sampling System & Envirotech has produced a new model VSS1PLS with improved features strictly in compliance with latest CPCB guidelines so as to obtain reliable results. VSS1PLS overcomes all the drawbacks of previous models.The operating principle is simple. The Particulate Matter is collected over a filtration thimble. It entrapsand absorbs various gaseous pollutants in suitable reagents, which are analyzed subsequently by simple Wet Chemistry methods to determine the concentration of specific pollutants.

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Sampler VSS3 Stack Sampler

Specifications Stack Temperature Range: Ambient to 600 deg C read on a Digital Pyrometer. Stack Velocity Range: 3 to 60 m/sec Thermocouple: T/C sensor in SS 304 casing, length of insertion: 1 m with 2m long cable.

MAIN FEATURES Specially to monitor Dioxins, Furan & provision for monitoring of Heavy Metals emissionsCollection based on wet chemical techniquesMeasures total quantity volume of the emissionsHeating Probe & box assembly with auto temp controllerRugged & convenient for sampling for long duration with oil free Vacuum Pump assemblyGlass lining inside the nozzle, thimble holder & probe pipeTripod stand for better accessibilityProbe set accommodated in a carrying caseConvenient to use List of Components VSS3: (1) :Instrument panel consisting of pyrometer, manometer rotameters, vacuum gauge, stop watch, dry gas meter & temperature controller. (2): Probe kit consisting of probe pipe, pitot tube, connecting hoses, tool kit, filter holder, nozzles, thermocouple, heating system, tripod etc. (3): Cold box assembly consisting of glass impingers, condenser glass coil, moisture bottle & water pump. (4): Vacuum pump assembly. In addition Stainless Steel Probe, Hose Pipe, Thimble Holder, Set of 3 SS Nozzles, Set of 4 Glass Impingers (240ml.) for normal Stack Emission Monitoring also provided.

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