The values depend on the position from where one measures and were therefore measured at the front of the pump, at distance of 1 meter from the pump cover and were corrected for background noise and reflections.

The values listed are the highest measured values under following operating conditions.

•working pressure: up to 10 bar.

•pumped medium: water, viscosity = 1 mPa.s

•—% nmax = — % maximum shaft speed

 

 

 

Lpa (dB(A))

 

 

TG MAG pump size

nmax(min-1)

 

 

 

 

Ls (dB(A))

25% nmax

50%nmax

75%nmax

100%nmax

 

 

 

15-50

1500

61

72

79

83

9

 

 

 

 

 

 

 

23-65

1500

63

75

81

85

10

58-80

1050

67

79

85

89

10

 

 

 

 

 

 

 

86-100

960

69

80

86

90

11

185-125

750

71

82

87

91

11

 

 

 

 

 

 

 

Sound power level (LWA)

The sound power LW is the power emitted by the pump as sound waves and is used to compare sound levels of machines. It is the sound pressure Lp that acts on a surrounding surface at distance of 1 meter.

LWA = LpA + Ls

The A-weighted sound power level LWA is also expressed in decibels dB(A).

The reference sound power is 1 pW (= 10-12W). LS is the logarithm of the surrounding surface at distance of 1 metre from the pump, expressed in dB(A) and is listed in the last column of the table above.

3.7.2The sound level of the pump unit

The sound level of the drive (motor, transmission,…) must be added to the sound level of the pump itself to determine the total sound level of the pump unit. The sum of several sound levels must be calculated logarithmically.

For a quick determination of the total sound level the following table can be used:

L1–L2

0

1

 

2

3

4

5

6

 

L[f(L1–L2)]

3.0

2.5

 

2.0

1.7

1.4

1.2

1.0

 

Ltotal = L1 + L corrected

 

 

 

 

 

 

where

 

Ltotal

 

: the total sound level of the pump unit

 

 

L1

 

: the highest sound level

 

 

L2

 

: the lowest sound level

 

 

Lcorrected

: term, depending on the difference between both sound levels

For more than two values this method can be repeated.

Example:

Drive unit

: L1

= 79 dB(A)

 

Pump

: L2

= 75 dB(A)

 

Correction

: L1

- L2 = 4 dB(A)

 

According to the table

: Lcorrected = 1.4 dB(A)

Ltotal = 79 + 1.4 = 80.4 dB(A)

A.0500.551 – IM-TGMAG/02.00 EN (02/2008)

17

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SPX Cooling Technologies TG MAG58-80, TG MAG185-125, TG MAG15-50, TG MAG23-65, TG MAG86-100 Sound level of the pump unit
Page 16 Page 18

TG MAG86-100, TG MAG23-65, TG MAG58-80, TG MAG15-50, TG MAG185-125 specifications

SPX Cooling Technologies has established itself as a leader in the design and manufacturing of cooling systems, offering a wide range of products tailored to meet specific industrial and commercial needs. Among its impressive lineup, the TG MAG series stands out, featuring models such as TG MAG185-125, TG MAG23-65, TG MAG86-100, TG MAG58-80, and TG MAG15-50. Each of these models combines innovative technology with robust performance characteristics, making them ideal choices for various applications.

The TG MAG185-125 model is designed for high-capacity cooling requirements, offering exceptional thermal performance while maintaining energy efficiency. Its advanced fan design minimizes noise levels, making it suitable for installations in noise-sensitive areas. Furthermore, the unit benefits from a corrosion-resistant construction, ensuring longevity and reliable operation in diverse environments.

For smaller applications, the TG MAG23-65 provides a compact solution without compromising on performance. This unit features a space-efficient design and utilizes high-efficiency fans that optimize airflow, thereby enhancing overall cooling efficiency. The integrated digital controls allow for precise temperature management, making it easy for operators to monitor and adjust settings as needed.

The TG MAG86-100 model serves as an ideal middle-ground solution, balancing capacity and efficiency. It incorporates state-of-the-art technology, such as variable speed drives, which adjust the fan speed based on cooling demand, resulting in significant energy savings. The design also promotes easy maintenance, with accessible components that facilitate regular servicing and inspections.

For medium-scale needs, the TG MAG58-80 combines durability with performance, featuring a robust frame that can withstand harsh operational conditions. Its efficient heat exchange technology maximizes cooling output while minimizing energy consumption. Moreover, the enhanced airflow system ensures uniform cooling across the entire unit.

Lastly, the TG MAG15-50 is perfect for smaller spaces where cooling requirements are less demanding. Despite its size, this model is equipped with cutting-edge features such as a compact structure and highly efficient cooling mechanisms to ensure effective performance. The easy installation process and low maintenance needs further enhance its appeal.

Overall, the TG MAG series provides a range of innovative cooling solutions tailored to meet diverse industrial requirements, characterized by efficiency, durability, and advanced technology, ensuring optimal performance across all operating conditions.
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