Cryogenic Phase Separators
Technifab’s Phase Separators deliver a high quality, colder liquid nitrogen by reducing the liquid nitrogen pressure and slowing the liquid nitrogen velocity from the supply line. This provides a lower temperature, saturated, pure liquid nitrogen that has fewer gas bubbles in the fluid.
With a Technifab phase separator you get:
- Consistent cryogen delivery output, dramatically improving process control and efficiency.
- Better liquid nitrogen quality control than utilizing a keep-full device.
- The use of one bulk storage tank for high pressure gas and low pressure liquid delivery.
- A vacuum jacketed vessel and lines to minimize heat leakage into the liquid.
- Up to 30 gallons per minute of liquid cryogen with our patented design.
- Both vertical and horizontal tank designs to minimize floor space or for overhead suspension.
- Easy to use operator controls that can be remote mounted or put on the unit.
We offer three phase separator models: PS-22, PS-42, and the PS-67.
- The PS-22 and PS-42 are used in lower cryogenic flow situations and when an overhead mounting solution is required. It features a compact size, vertical and horizontal outlet configurations, and a gravity feed/naturally aspirated version.
- The PS-67 handles higher flow and is often used when a higher pressure output may be needed. All three models utilize electronic controls for ease of use and better liquid control than any competitive product.
PS-22 Phase Separator
PS-67 Phase Separator with vessel mounted controls
Many types of machines use liquid nitrogen for heat removal. In some liquid nitrogen applications, it is necessary that liquid quality be maintained within a tighter tolerance than is possible with a simple keep-full device. These high quality applications include scientific instruments, environmental chambers, high volume industrial applications and even food freezing. In these applications a phase separator can be used. Getting pure liquid nitrogen delivered to the use point can result in better temperature control and more predictable heat transfer.
High speed production line liquid nitrogen injectors (such as our Techinjector) for bottles and containers benefit from a more consistent liquid supply. The PS-22/42 are well suited for that application.
Technifab cryogenic phase separators convert two-phase, high-pressure liquid nitrogen (usually from a bulk tank) to a saturated, lower pressure and colder liquid.
Cryogenic liquid flows into the phase separator, where its velocity and saturated pressure is reduced. The liquid reaches saturated pressure by evaporative cooling. In this quiescent state, gas bubbles in the fluid rise to the top of the liquid bath and exit through the vent system. This process is accelerated through a special patented device to facilitate rapid evaporation on some models.
The resulting cryogen is nearly 100% liquid and has an extremely repeatable cooling capacity per pound. This repeatability is particularly important in electronic testing applications. If required, a single phase separator can be installed on each user device, or one large phase separator can be utilized to supply high quality liquid to multiple devices.
A Programmable Logic Control (PLC) controls the phase separator valves to maintain a consistent liquid level and pressure. This device offers additional flexibility to better control and tailor cryogen output to user needs. By adjusting the storage pressure within the phase separator to meet the needs of the use-point equipment, the optimal balance between storage pressure and liquid temperature can be achieved.
The addition of a phase separator can also be used to eliminate the need for two supply tanks in some cases. High-pressure gas needs can be met by using the gas vapor space at the top of the bulk tank. The high-pressure liquid is taken from the bottom of the tank and piped to the phase separator, where it is cooled by very rapid evaporation producing a saturated low pressure and temperature liquid.
Technifab offers three liquid nitrogen phase separators, which can be customized to your individual needs.
Standard cable is 2M long.
1Dependent upon the system and input pressure, consult a cryogenic specialist for correct application to your system.
For more information or to request a quote, please contact us.
LT-34096: Phase Separator Sales Sheet
