GB-75™ AND GB-152™ OPERATION AND MAINTENANCE MANUAL
©1998-2008 DH Instruments, a Fluke Company
Page 8
2.2
SITE REQUIREMENTS
2.2.1
SITE
There are no special site requirements.
The GB gas booster system is divided into two parts: the gas booster itself and the Drive Air
Control Kit. The two parts are separated so that they may be installed separately.
The gas booster, which is large and relatively noisy, does not need to be accessed regularly.
It is generally mounted out of the way, for example behind and under a work bench.
The booster may be set horizontally or vertically.
Connections of gas supplies and output need to be considered carefully when selecting the
installation site.
See Section 2.3.1 for additional recommendations.
2.2.2
GAS SUPPLIES
Two sources of compressed gas are required to operate the gas booster. They are drive air
(see Section 2.2.2.1) and high pressure instrument gas (see Section 2.2.2.2).
2.2.2.1
DRIVE AIR SUPPLY
The drive air supply provides power to operate the booster. The booster’s very
high pressure output is the drive air multiplied by either 75 (BG-75) or
152 (GB-152). This supply is usually “shop” or “factory” air.
Drive air requirements are:
Flow rate:
425 slm (15 scfm) minimum
Cleanliness: Not critical, use 60 micron filter
Humidity:
20 to 50 % RH. Do not use dry gas.
Approximate drive air pressures required to reach different high pressure
outputs are:
MODEL
BOSTER
DRIVE AIR
[kPa (psi)]
OUTPUT PRESSURE
[MPa (psi)]
GB-75 400
(60) 25
(3
500)
GB-75 700
(100
)
50
(7 500)
GB-75 1
000
(150
)
70 (10 000)
GB-152 450
(60) 50
(7
500)
GB-152 550
(80) 70 (10
000)
GB-152 900
(130
)
110 (16 000)
