A regulator with two functions
3rd Quarter 2012
Pneumatic systems & components
FCE Technical Services has released the PBE-L pressure build and economiser regulator, which functions as both a pressure build regulator and an economiser relief regulator in one model. Widely used for pressure control in liquefied gas storage tanks, it has a compact, forged body and a maximum Cv of 2. The pressure build feature controls the outlet pressure while the economiser feature relieves any excess pressure in the system above set point from atmospheric to 4100 kPa.
In the pressure build portion of the regulator, gas flows out of the bottom of the tank through the regulator and then through a heat exchanger that vaporises the liquid. The vapour is piped back to the top of the tank, causing the pressure to rise. When the pressure reaches the set point of the regulator it shuts off, stopping the flow of liquid.
If the gas is not used there may be a slight over-pressure above set point in the tank due to spontaneous boil-off. The regulator has an economiser feature built into it, so called because if the overpressure were allowed to continue to the safety relief range it would evacuate the whole tank. This relieves the excess pressure and maintains the set point.
It is important to know that the difference between the set point and the relief point is between 70 kPa and 170 kPa. If a unit is set at say 345 kPa then the relief would begin at 415 kPa and if the set point were 1725 kPa, relief would be at about 1900 kPa. This difference in pressure is inherent in the regulator and is not adjustable.
For more information contact Loraine Lundall, FCE Technical Services, +27 (0)12 808 0142, [email protected], www.fcets.co.za
Further reading:
Achieving clean and dry compressed air for faultless operation
Artic Driers International
Pneumatic systems & components
Compressed air is an expensive source of motive power so it makes good sense to supply clean, dry compressed air to your distribution system.
Read more...
Controlling pneumatics via IO-Link
ifm - South Africa
Pneumatic systems & components
Pneumatic airboxes control cylinders or actuators using compressed air, and are found in a wide range of industrial applications.
Read more...
The role of analogue gauges in a digital world
SA Gauge
Pneumatic systems & components
With so much focus on digital systems, remote monitoring and automation, it’s easy to assume that traditional analogue gauges are outdated. Yet in almost any plant, mine or processing facility, you’ll still find them in daily use. There’s a good reason for this.
Read more...
It’s full steam ahead for SKF’s sustainable leak detection solution
SKF South Africa
Pneumatic systems & components
One of SKF’s key customers based in Cape Town, which depends on steam systems for its production processes, was facing costly challenges related to high energy consumption and excessive maintenance hours. SKF recommended the TKSU 10 ultrasonic leak detector as a more streamlined, user-friendly alternative.
Read more...
Dynamic compressor control system with energy savings
Pneumatic systems & components
CompAir has launched Ecoplant, a dynamic, compressed air management solution that adjusts compressor parameters in real time, offering up to 30 per cent reductions in energy costs and CO
2 emissions.
Read more...
Is your compressed air system sustainable?
Artic Driers International
Pneumatic systems & components
We are all aware that compressed air is an expensive source of motive power, but do we actually know what the cost is?
Read more...
Reliable, flexible and cost-effective rental compressed air
Pneumatic systems & components
More businesses are turning to Integrated Air Solutions for rented on-demand compressed air, without the burden of capital expenditure.
Read more...
It’s full steam ahead for SKF’s sustainable leak detection solution
SKF South Africa
Pneumatic systems & components
One of SKF’s key customers based in Cape Town, which depends on steam systems for its production processes, was facing costly challenges related to high energy consumption and excessive maintenance hours. SKF recommended the TKSU 10 ultrasonic leak detector as a more streamlined, user-friendly alternative.
Read more...
A guide for compressed air dryer selection
Artic Driers International
Pneumatic systems & components
Clean and dry compressed air is essential in today’s modern operating environment. Without an air dryer and filter bank in line, the downtime created by condensate can be substantial. However, there are issues about air dryer selection and the impact of geographic location that need careful consideration prior to placing an order.
Read more...
Easy to use energy management tool for compressed air
Comtest
Pneumatic systems & components
For the efficient management of plant operations, the critical considerations include product quality, safety, downtime, and energy use. A production plant in Germany has set a greenhouse gas emissions reduction goal of 25% by 2030, and turned to the Plant Energy manager to help deliver that target.
Read more...
printer friendly version