GB-75™ AND GB-152™ OPERATION AND MAINTENANCE MANUAL
This equipment described in this manual is designed and manufactured for the intended purpose of
generating high pressure gas. Certain precautions need to be followed during installation and operation of this
device. Reading and understanding the material is essential to the safe and correct operation of the unit.
Pressurized equipment is potentially dangerous. The equipment described in this manual generates and
controls very high gas pressures. It should not be operated by anyone who has not become thoroughly familiar
with this manual. Additional training in general and pressure specific safety procedures will help assure
protection from harm or damage to personnel or property. Responsibility for the proper and safe operation of
this instrument rests with the user.
High pressure liquids and gases are potentially hazardous. Energy stored in these liquids and gases can
be released unexpectedly and with extreme force. High pressure systems should be assembled and operated
only by personnel who have been instructed in proper safety practices.
Information in this document is subject to change without notice. No part of this document may be reproduced or transmitted in any
form or by any means, electronic or mechanical, for any purpose, without the express written permission of DH Instruments, a
Fluke Company 4765 East Beautiful Lane Phoenix AZ 85044-5318 USA.
DH Instruments makes every effort to ensure the accuracy and quality of its published materials; however, no warranty, expressed
or implied, is provided. DH Instruments disclaims any responsibility or liability for any direct or indirect damages resulting from the
use of the information in this manual or products described in it. Mention of any product or brand does not constitute an
endorsement by DH Instruments of that product or brand. This manual was originally composed in English and was subsequently
translated into other languages. The fidelity of subsequent translations cannot be guaranteed. In case of conflict between the
English version and another language version, the English version takes precedence.
DH Instruments, DH Instruments, a Fluke Company, DH, DHI, PPC, PPCK+, PPC2+, RPM3 and CalTool are trademarks,
registered and otherwise.
Swagelok is a registered trademark of the Swagelok Company.
Teflon is a registered trademark of the 3M Corporation.
1.2.1 GAS BOOSTER.............................................................................................................................................2
1.2.2 DRIVE AIR CONTROL KIT............................................................................................................................3
2.2.2 GAS SUPPLIES.............................................................................................................................................8
2.2.2.1 DRIVE AIR SUPPLY ..................................................................................................................................8
2.2.2.2 HIGH PRESSURE INSTRUMENT GAS.....................................................................................................9
2.3.1 GENERAL CONSIDERATIONS.....................................................................................................................9
GB-75 and GB-152 are gas boosters with control kits intended to be used to provide a very high pressure
gas supply to systems using a GPC1 High Pressure Gas Controller and other high gas pressure test and
calibration systems.
Both models include a pneumatically driven, piston type, self-cycling gas booster. The gas booster
boosts a lower pressure, generally supplied from a bottle (2 MPa [300 psi] minimum), to higher pressure.
The booster is powered by drive air. The high pressure output is equal to the drive air input times the
boosting ratio of 75 or 152. The high pressure output is connected to the SUPPLY port of a GPC1 or
other system to which high pressure gas is to be supplied.
Both gas booster models include a drive air control kit and interconnecting tubing. The kit is on a bracket
that can be mounted at a convenient location remote from the booster itself.
GB-72 and GB-152 are not a good choice for supplying pressure to a PPCK+ high gas pressure
controller/calibrator. A different model, GB-K-75 and GB-K-175, with features specifically intended to support
PPCK+ is available for this application.