Description And Operation; General Description - PIETRO FIORENTINI FE Series Manual

4 - DESCRIPTION AND OPERATION

4.1 -

GENERAL DESCRIPTION

The equipment is a self-operated dual-stage low-pressure regulator suitable for gaseous fluids such as:
• natural gas;
• GPL;
• non-corrosive gases.
The main elements of the equipment are specified in Tab. 4.13.:
Pos. Description
Inlet connections:
a: in-line
1
b: in a square pattern
First stage regulation
2
Double stage regulation
3
Excess flow lock-up device reset button
4
Reset knob of the slam-shut valve for maximum
5
downstream pressure
Reset knob protection cap (5)
6
1a
1b
U
pstream pressUre
27
Pos. Description
7
8
9
10
11
-
9
3
10
7a
2
7b
11
I
ntermedIate pressUre
Fig. 4.1. FE (basic version) general description
LOW-PRESSURE GAS REGULATOR
Outlet connections:
a: in-line
b: in a square pattern
Slam-shut valve for maximum downstream pres-
sure
Relief valve
Double stage regulation valve (3)
Excess flow lock-up device
-
8
d
ownstream pressUre
| DESCRIPTION AND OPERATION
Use, maintenance and warning manual
Tab. 4.13.
4
5
6
| REV. 00
EN