Current Region: Iceland (EN)
The DURASITE sample cylinder is a portable sample vessel for transporting a liquid or gas hydrocarbon sample from its source to an analyzer. The cylinder design enables the product to be sampled and stored at pipeline conditions throughout the sample period and during final lab analysis.
This unit incorporates a free-floating piston design to provide a product chamber and a pre-charge chamber. Once a pre-charge of inert gas has been applied to the DURASITE Cylinder, constant pressure of the product can be maintained during sampling, transit and evacuation.
The DURASITE is a patented product from YZ Systems and is DOT approved (Patent #4,409,850, DOT exemption #8757). Our DOT certification allows the transport of hydrocarbons up to 1,800 psig by motor vehicle or cargo aircraft. The magnetic volume indicator “bullet” from YZ Systems provides excellent visual indication of the product. Internally, a patented design incorporates an inert mixing ball to allow safe product mixing.
The DURASITE constant pressure sample cylinder is part of YZ's line of light liquid and gas sampling products. YZ has been providing these products to the energy industry for over 60 years. Our innovative design offers a versatile solution to a wide range of sampling applications such as propane, butane and other refined products.
Our innovative sampling equipment delivers accurate injection while our versatile solutions accommodate a wide range of performance requirements. Commitment to quality is our top priority to ensure the protection of your most precious assets. Whether using natural gas or crude oil, YZ's products are manufactured with quality and precision and offer a standard, simple and reliable family of systems. The goal of our designs is to deliver a representative sample month after month, year after year.
Accurate sampling of natural gas and liquid hydrocarbons equates to revenue, and in many cases a large amount of revenue. One of the major links in the sampling process is the sample container or sample cylinder.
In recent years, the DURASITE constant pressure cylinder has become the storage cylinder of choice, principally due to its unique design. This type of cylinder allows the sampled product to be stored at a constant pressure throughout the sample period and in final lab analysis.
The DURASITE portable sample cylinder allows the user to remove a liquid or gas hydrocarbon sample directly from a pipeline or a sampling device. This is accomplished without changing the pressure of the product or exposing it to a contaminant fluid. If properly used and maintained the DURASITE will provide many years of safe, accurate, and clean sampling. The DURASITE is a very safe device to use.
The DURASITE Portable Sample Vessel consists of a metal cylinder precisely machined and polished on the inside surface with removable end heads for easy access to the inside of the cylinder. The heads are drilled and tapped to incorporate isolation valves, gauges, and rupture disc assemblies.
Contained inside of the cylinder is a moving piston fitted with seals to ensure a leak-free seal between the sample and precharge side of the cylinder. The piston is able to move freely within the cylinder while maintaining the segregation between the two ends of the cylinder. This piston also incorporates a set of magnets to interface with the magnetic sensor to determine the level of the sample fluid within the vessel. A visual level indication can also be observed on the DURASITE vessel by the position of the magnetic market on the vessel.
In operation an inert gas pressure is applied to the precharge end of the sample cylinder. This inert gas pressure should exceed the anticipated equilibrium vapor pressure of the product. This will ensure the sample is maintained in a single phase.
Product should be introduced to the cylinder from the product end. The cylinder should never be filled over 80 percent full by volume, to allow a safe cushion to allow a safe cushion for any expansion of the product due to changes in the temperature.
The DURASITE sample cylinder consists of a metal cylinder precisely machined and polished on the inside surface with removable end heads for easy access to the inside of the cylinder. The heads are drilled and tapped to incorporate isolation valves, gauges, and pressure rupture disc assemblies.
Non DOT 2000cc, 3000cc, 4000cc
*Manufactured under DOT exemption #DOT-SP 8757