Selecting a SET, Calculating the Flow Rate

Goulds Pumps

PHV - Packaged Hydrovar Series

SELECTING A SET

The first thing to do when selecting a package is to determine the quantity of water required and the pressure it must supply.

CALCULATING THE FLOW RATE

•The quantity of water called water requirement depends on the type of users, e.g. homes, offices, schools, as well as their number. The theoretic requirement is the total amount of water required by all the users. In actual fact, since it is very unlikely that there should be a simultaneous demand by all the users, the real requirement is lower than the theoretic one.

CALCULATING THE HEAD

•The pressure required depends on the type of user. A number of factors must be taken into account, including the height of the building, the suction conditions and the flow resistance in the pipes.

SELECTING A BOOSTER SET

•According to the required flow rate and head values, it is possible to identify the most suitable type of electric pump. On two-pump sets the pumps normally act as back-up for one another. A single pump is normally sufficient to provide for average requirements, while in conditions of high demand the back up pump may be called in to assist. With the cyclic changeover function duty assignment is rotated to ensure both pumps remain active and with even running hours, so wear is uniform and the use factor is reduced for longer pump life. This system also ensures continuity of operation in case one of the pumps needs maintenance.The Hydrovar provides automatic lead/lag, alternation when programmed in multi-control and wired via RS485 communication terminals.

TANK

•Frequent demand or small system losses determine pressure variations that may be compensated for by using a tank. Correct selection of a diaphragm tank reduces the number of pump starts and, if it is installed near the booster set, helps reduce the effect of water hammer, or fast acting flush valves.

The booster sets are ready for installation of diaphragm tanks directly on the delivery manifold, and additional tanks can be connected to the unused end of the manifold.

For peak performance, variable speed booster sets need smaller tanks compared to traditional systems. Generally speaking, a tank with a capacity of just 20% of the nominal capacity of a single pump, expressed in gallons per minute, is required. Example: If my pump is sized for 100 GPM, then we would size a 20 gallon (total capacity) diaphragm tank.

•Pre-charge the tank with air, 10-15 PSI below your system pressure. Charge dry tank without water pressure or before installing in system.

BPHV specifications

ITT BPHV, short for ITT's Bacterial Purified Water and High Purity Valves, represents a breakthrough in the field of fluid control technology, particularly designed for applications requiring the highest standards of cleanliness and reliability. These valves are typically utilized in industries where the quality of fluid handling is crucial, such as pharmaceuticals, biotechnology, and food and beverage manufacturing.

One of the standout features of the ITT BPHV is its ability to handle both high purity and aggressive fluids without compromising system integrity or cleanliness. The design focus on valve components ensures that they are free from contaminants, which is essential for processes where even minute impurities can lead to significant quality issues.

The materials used in the construction of ITT BPHV valves are particularly noteworthy. They feature advanced polymers, stainless steel, and other corrosion-resistant materials that withstand the rigors of high-purity applications. These materials not only ensure durability and longevity but also meet stringent industry standards for safety and compliance.

Innovative technologies integrated into ITT BPHV valves enhance their performance. These include advanced actuation systems that allow for precise control and responsiveness, ensuring that the flow of fluids can be managed effectively, even in highly dynamic environments. Additionally, the valves are designed to facilitate easy maintenance, with features that allow for quick disassembly and cleaning without the need for specialized tools.

Another vital characteristic of ITT BPHV valves is their compact design, which maximizes space efficiency within installations. This is particularly beneficial in industries where real estate is at a premium and where large equipment can impede operational efficiency. The modularity of the valve design also means that it can be adapted easily to different system configurations.

Furthermore, ITT BPHV valves are engineered with safety in mind. They incorporate features such as fail-safe functionality and pressure regulation, providing operators with peace of mind during critical operations. The seamless integration of these valves into automated systems enhances productivity by enabling consistent and reliable fluid movement.

Overall, ITT BPHV stands as a pioneer in high purity fluid handling, offering cutting-edge technology and robust engineering to meet the demands of modern industries. With their focus on cleanliness, reliability, and operational efficiency, these valves are an essential component for any facility striving for excellence in fluid management.

ITT BPHV manual Selecting a SET, Calculating the Flow Rate

Models: BPHV