McFlow - Services
Sampling System
McFlow Engineering provides a range of closed-loop sampling systems for liquids and gases, ensuring safe and emission-free sample collection. Our systems are designed to protect personnel and the environment from exposure to hazardous process fluids. This content outlines the key features of our purging and non-purging closed-loop sampling systems.
“Your Project. Our Responsibility.”
What is a Closed-Loop Sampling System?
A closed-loop sampling system, also known as a zero-emission or closed-vent sampling system, allows for the collection of a fluid sample without releasing any of the process fluid or vapors into the atmosphere. The system returns the displaced fluid and any vapors back to the process line, ensuring no emissions occur. This method is critical for sampling hazardous, toxic, or volatile substances.
Purging vs. Non-Purging Systems
McFlow Engineering offers both purging and non-purging closed-loop systems to meet specific application needs.
Purging Closed-Loop Systems
Purging systems are designed to ensure the sample collected is highly representative of the current process fluid by flushing out any stagnant fluid from the sample line before collection.
- How it Works:The system allows a small amount of process fluid to flow through the sample line and back into the process line. This continuous flow, or “purging,” removes old, stagnant fluid that may have been sitting in the line, ensuring the new sample is fresh and accurate.
- Best For:Applications where high sample accuracy is critical, such as quality control in chemical and pharmaceutical manufacturing. It is ideal for processes with changing compositions or where a time-sensitive sample is required.
- Key Benefit:Guarantees a highly representative sample by eliminating the influence of stale fluid.
Non-Purging Closed-Loop Systems
Non-purging systems are simpler in design and are used when the sample line is kept short, or when the process fluid’s composition is stable over time, making a purge unnecessary.
- How it Works:In this system, a sample is drawn directly from the process line into the sample container without a dedicated flushing step. The system is designed with minimal dead volume to reduce the amount of stagnant fluid.
- Best For:Applications with stable process conditions and non-critical sampling, or where minimizing product loss is a top priority.
- Key Benefit:Minimizes product loss and simplifies the sampling process.
Applications for Liquids and Gases
McFlow Engineering’s closed-loop systems are adaptable for both liquid and gas applications, offering tailored solutions for different fluid types and process conditions.
Liquid Applications
Our liquid systems are suitable for a wide range of industries, including petrochemical, chemical, and refining. They handle diverse viscosities and temperatures, using a self-sealing septum bottle that prevents leakage and protects the operator from exposure. The system’s design ensures a representative sample is collected with minimal product loss.
Gas Applications
Our gas sampling systems are engineered for high-pressure lines and volatile gas streams. They utilize sample cylindersto safely capture a gas sample and return any displaced gas back to the process, ensuring no emissions. These systems are crucial for compliance with environmental regulations and for ensuring the safety of personnel handling flammable or toxic gases.
GOT A PROJECT?
get in touch to see how we can help you today!
Your Project. Our Responsibility.
Why Choose McFlow Engineering?
-
Enhanced Safety : Our systems protect personnel from exposure to hazardous materials.
-
Environmental Compliance : Eliminate emissions of VOCs and HAPs
-
Customization : We offer solutions tailored to your specific process requirements.
-
Quality & Reliability : Our systems are built to meet or exceed industry standards like API 14.1 and ASTM D4057.