OFFICINE OROBICHE S.p.A.
1/7
INSTRUCTION MANUAL FOR FLOW SWITCHES
PL SERIES
24010 Ponteranica (Bergamo) ITALY - via Serena, 10 - Tel. 0039/035/4530211 - Fax 0039/035/570546 - www.officineorobiche.it-e-mail:info@officineorobiche.it
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JULY ’14
Information subject to change without prior notice
IST/158-I
1.INSTRUMENT DESCRIPTION
Flow switches PL series are designed to be mounted in an upright position along horizontal pipes.
These models are equipped with a tripping device, which can be equipped with single (SPDT) or double (DPDT) exchange
contacts for high or low flow rate control and/or alarms.
2. MODEL IDENTIFICATION
11 12 13 14 15 16 17 18 19 20
PL
.
.
.
.
.
.
.
PNA
Aluminium
xx
Special
version
Finning
R3
Ø
R1
R4
Body material
SPDT
Ø
2
Contact type
Pneumatic
Water-proof
HG Bulb
A
I
J
Internal material/Paddle
VD
AISI 316
2
M6
Water-proof
Golde- Contacts
Base
Current
Ermet.Sealed
with inert gas
Model
Water-proof
M4
EP
WP
Ex-d
Case
M14
316
Direct
M2
M3
Acc
304
Contact
DPDT
