The first step in finding a fluid control solution is understanding the problem.
Often times users are not sure of the problems inherent in their fluid transport systems. Hydropneumatic systems PULSCO regularly designs include:
PULSCO’s Hydropneumatic Surge Control Systems are designed to eliminate damaging shock waves and pressure transients caused by sudden changes in flow conditions often due to pump start up, sudden pump shut down or valve closures. These pressure transients are referred as water hammer, surge or shock.
PULSCO’s Hydropneumatic Pressure Control Systems are designed to provide a volume of fluid to a system within a specified pressure range. These systems are often used to provide a continuous source of pressure to treatment plants, annular monitoring systems, rural neighborhoods, and other distribution lines.
Next is determining which control system is best-suited for your protection.
PULSCO takes into consideration the specific project needs before recommending one system over the other. In direct contrast, some manufacturers recommend only bladder systems or only air-over-water systems, often citing misinformation as fact, and usually promoting a narrow view.
Can be designed for any volume
Air-Over-Water systems can be designed for any volume, where the tank size limited only by shipping restrictions and site limitations. The air compressor provides a local source of compressed air to recharge the tank when needed. The system is controlled automatically using a control panel and other system components.
Monitoring equipment recommended
Air-Over-Water systems appurtenances and controls automatically adjust the level to keep it in the intended range, making the system more resistant to the effect of small leaks in valves, or joint connections.
The air compressor and instrumentation needs to be maintained in good condition, and the solenoid valves should be activated periodically. Typical maintenance on the Air-Over-Water equipment can be performed without isolating the tank.
Better suited for smaller spaces
Bladder systems are recommended for smaller tank volumes or at sites that have limited access to power or onsite maintenance personnel. A flexible bladder membrane maintains the separation of gas and fluid, preventing gas from being absorbed into the fluid.
Monitoring equipment recommended
While not necessarily required, it is recommended that monitoring instrumentation be installed to improve maintenance and assist in troubleshooting. It is important to confirm adequate volume of air is in the tank to protect the system.
Bladder systems have fewer components to install and maintain. Once the system has been confirmed to be running properly, minimal human interaction is required for operation. Tanks must be isolated during bladder changes.
Next is understanding the materials that are best-suited for reliability.
PULSCO selects materials based on code and regulatory requirements, assuring optimum performance for the specific application and environment.
Oil & Gas, Wastewater, Potable Water, Low Temperature, Ammonia
Carbon Steel, Stainless Steel, Titanium, Brass, Lead Free
Lastly, understanding the determining factors of the cost of ownership
A PULSCO-designed Hydropneumatic control system will protect the capital equipment, save your system manpower, and save money in the long run
The cost of a system is dictated by the size and pressure rating of the tank by the operating pressure of the system, and by the instrumentation and controls chosen. Generally speaking and assuming proper skill set of operators and maintenance personnel, cost of ownership may favor Bladder systems for volumes up to 2000 gallon, and favor Air-Over-Water systems for volumes over 6000 gallons.
The benefits from having an optimally designed system are considered indirect savings.