Closed Glass Bottle Sampler

In the petrochemical, fine chemical, and pharmaceutical industries, the safe and accurate sampling of toxic, harmful, flammable, explosive, or high-purity liquid media is a key link to ensure process quality, personnel safety, and environmental compliance. The HCY Series Closed Glass Bottle Sampler developed by Hubei Wan'an Environmental Protection & Petrochemical Equipment Co., Ltd. is a professional solution specifically designed for such harsh working conditions. Adopting fully closed-loop and pressure-resistant glass bottle technology, it achieves leak-free and high-precision sampling from process pipelines to sample bottles, completely replacing the dangerous and inaccurate traditional manual sampling methods. It is a standard configuration for modern chemical plants to achieve safety, environmental protection, and quality control.

Core Functions & Superior Performance

This product strictly complies with relevant national standards such as GB/T6678-2003 "General Principles for Sampling of Chemical Products" and is specifically designed for collecting liquid-phase media (especially volatile liquids). Its core lies in constructing a fully closed sampling loop: the sample flows from the process pipeline into a specially made pressure-resistant glass sampling bottle, the gas inside the bottle is discharged through a short needle, and the residual samples and vapors are returned to the process pipeline or directed to a safe adsorption treatment system (such as a carbon adsorption tank) through the closed loop. During the entire operation process, toxic, harmful, or flammable media are completely not exposed to the air, fundamentally eliminating the risks of personnel contact hazards, environmental pollution, and potential fire and explosion. The collected samples can maintain their original state to the greatest extent with strong representativeness, ensuring the accuracy of laboratory analysis data.

Key Customer Value

Intrinsic Safety & Environmental Compliance: The fully closed design completely eliminates leakage and volatilization during sampling, effectively protecting operators from the harm of toxic and harmful media. It fully meets the requirements of environmental protection standards such as GB 31570/31571 for volatile organic compound leakage control, avoiding environmental pollution and safety accidents.
High Precision & Sample Fidelity: High-quality pressure-resistant glass bottles are used as sampling containers, which have excellent corrosion resistance, pressure resistance, and chemical inertness to ensure that samples are not contaminated. The system can be equipped with purging and venting functions to remove residual liquid and gas in the pipeline, ensuring that each collected sample is fresh and representative of the process, solving the problem of misjudgment of production quality caused by inaccurate sampling.
Flexible Adaptation to Complex Working Conditions: The product series is complete, covering a wide range of working conditions from atmospheric pressure to high pressure (up to 8.0MPa) and normal temperature to high temperature (up to 400℃). According to the medium characteristics, various functional modules such as nitrogen purging system, pneumatic circulation pump (for negative pressure or circulation), cooling or heat tracing system can be flexibly selected to meet diverse needs.
Easy Operation & Robust Reliability: The system adopts flange connection, with a compact structure and reasonable layout. The closed sampling design with double needles (long sampling needle and short exhaust needle) enables fast and safe operation. The sampling bottle is equipped with a sturdy stainless steel protective cover to ensure the safety of transportation and operation.
Wide Industry Applicability: It is not only suitable for the sampling of various hydrocarbons, solvents, acid and alkaline liquids (such as gasoline, benzene, sulfuric acid) in the petrochemical industry, but its high cleanliness and anti-pollution characteristics also make it an ideal choice for sampling high-purity media in the pharmaceutical, food, electronic chemicals and other industries.

Typical Application Scenarios

Daily process monitoring and quality inspection sampling of toxic, harmful, flammable and explosive liquids (such as benzene, toluene, acids, alkalis) in petrochemical plants.
Aseptic and pollution-free sampling of high-value-added, high-purity liquids such as intermediates and APIs in the pharmaceutical and fine chemical industries.
Sampling at laboratory inlets that require high sample fidelity for R&D or key quality control.
Any liquid medium sampling point that needs to replace open sampling to improve safety, environmental protection, and data accuracy.

Our Commitment

Hubei Wan'an Environmental Protection & Petrochemical Equipment Co., Ltd. is a professional manufacturer in the field of closed sampling, with complete quality system and production qualifications. With mature technology and strict quality control, we ensure the reliable performance of each sampler.

We provide:

Professional selection support: Recommend the best model and configuration according to your medium properties, pressure, temperature and safety requirements.
Customized production: Manufacture according to your specified materials (S31608, HC276, R60702, etc.), flange standards and special functions.
Complete technical delivery: Provide detailed product manuals, installation drawings, operation guides and safety specifications.
Reliable global supply: Products are packaged in sturdy export packaging to ensure safe arrival at project sites around the world, and provide comprehensive after-sales service.

Isolate hazards and errors within the closed system. Choose Wan'an Closed Glass Bottle Sampler to protect your employees' health, environmental compliance and process quality with absolute safety guarantee and excellent sampling accuracy.

Welcome to contact us for detailed technical data and exclusive quotations!

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