OPERATION DESCRIPTION

SETS WITH VARIABLE-SPEED MOTORS AND PRESSURE TRANSDUCER CONTROL

The starting and stopping of the pumps are determined based on the pressure values set on the controller. Each frequency converter is connected to a pressure transducer.

The controllers exchange information with each other and provide for cyclic changeover.

The figure shows the operating mode of a two-pump booster set (Typical Field Set).

On demand, water is drawn from the tank.

When the pressure drops belows the PS setting the first pump starts and the speed is adjusted to maintain a costant pressure as demand increases.

If the water consumption increases and the pump reaches maximum speed, the second pump starts and the speed is adjusted to maintain constant pressure.

When demand decreases, the speed is reduced until minimum speed is reached and one of the pumps are switched off.

If consumption keeps decreasing the pump slows down, fills the tank and stops at the pressure setting.

Pressure

Figure 3

 

Pmax

PS

Duplex

Flow

OPERATING CHARACTERISTICS AND LIMITS

Type of pumped liquids

Water containing no gas or corrosive and/or aggressive substances

Fluid temperature

Above 0° F to 180° F, Pressure transducer limited

Ambient temperature

Above 0° F to 104° F, VFD/Display, keep away from direct sun

Maximum operating pressure

360 PSI (Pump without transducer)

Minimum inlet pressure

According to NPSH curve and losses, with a minimum margin of 0.5 m

Maximum inlet pressure

The inlet pressure added to the pressure of the pump at zero flow must be lower

than the maximum operating pressure of the set (suction and discharge).

 

Installation

Indoors/outdoors, protected from the direct sun. Away from heat sources. Maximum

elevation 3300 feet ASL. Maximum humidity 50% without condensation.

 

Hourly starts

Maximum 60 up to 10 HP. Above 10 HP and up to 50 HP, maximum 40 starts per

hour. Variable speed drive starts.

 

Sound emission

See table

* Note: For higher temperature it is necessary to use special materials (only on request).

NOISE EMISSION LEVELS

60 Hz 3500 RPM

LpA (dB ±4)

HP

NEMA Motor Frame

PHV

 

 

 

1

56

< 70

2

56

< 70

3

56

< 70

5

145

< 70

182-184

< 70

10

215

< 70

15

254

73

20

256

75

25

284

75

30

284

75

*Note: Adjusted from 50 Hz data, may vary.

13

Page 13
Image 13
ITT BPHV Operation Description, Operating Characteristics and Limits, Noise Emission Levels, 60 Hz 3500 RPM LpA dB ±4

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.