Description And Operation; Versions, Models And Configurations - PIETRO FIORENTINI GOVERNOR 30051 Use And Maintenance Manual

4 - DESCRIPTION AND OPERATION

4.1 -

VERSIONS, MODELS AND CONFIGURATIONS

NOTICE!
The different versions of the equipment must be:
• contractually established;
• set up at PIETRO FIORENTINI S.p.A. plants only
Typical versions of GOVERNORS are listed in Tab. 4.13:
Type Image
Standard
Version
Zero Version
Ratio Ver-
sion
Goval Ver-
sion
Painted
version
25
Description
This version has a maximum inlet pressure of 0.5 bar and can be supplied with:
• internal filter element to protect the plugs;
• slam-shut valve for maximum and minimum downstream pressure.
This version can be used as a zero device, i.e. keeping the downstream pres-
sure at zero when the flow demand changes.
This version can be used as a gas/air ratio device keeping the gas/air mixture
constant as the flow rate changes.
NOTICE!
The device can be calibrated to achieve a 1:1 gas/air mixture.
Compared to the standard version, this version has a max. inlet pressure ex-
tended to 1 bar.
This version is suitable for:
- • marine environments (against salt corrosion);
• highly humid atmospheres.
LOW-PRESSURE GAS REGULATOR | DESCRIPTION AND OPERATION
Use, maintenance and warning instructions
Tab. 4.12.
| REV. A
EN