F10
Vane type
flow switches
®
INSTRUCTION MANUAL AND PARTS LIST
DESCRIPTION
The F10 is a vane type flow switch designed to be installed
in 2" through 30" horizontal pipeline by means of a threaded
or flanged connection.
OPERATING PRINCIPLE
The actuating vane is magnetically linked to a pivoted
electric (or pneumatic) switch, which is isolated from the
process by a non-magnetic barrier tube. As the actuating
vane moves with an increase in flow, it drives a magnetic
sleeve
①
into the field of a permanent magnet
②
located
outside the barrier tube
③
which trips the switch. As flow
decreases, the actuating vane returns to a vertical position,
allowing the magnet and switch assembly to return to the
“no Flow” position.
Switch mechanism
Adjusting screw
Magnetic sleeve
Actuating vane
Magnet
NO FLOW
POSITION
POSITION WITH
ACTUATING FLOW PRESENT
AGENCY APPROVALS
Agency
Approval
ATEX
II
2G EEx d
II
C T6, explosion proof
II
1G EEx ia
II
C T6, intrinsically safe
CEnElEC
EEx d
II
C T6, explosion proof
CCE
➀
R1 (1) 136/MI/433, explosion proof
FM
Class
I
, Div. 1, Groups C & D
Class
II
, Div. 1, Groups E, F & G, Type nEMA 7/9
FM/CSA
➁
non-Hazardous area
Explosion proof area –
Groups B, C, D, E, F & G Type nEMA 4X/7/9
SAA
➁
Explosion proof area
lRS
lloyds Register of Shipment (marine applications)
GOST/
Russian Authorisation Standards
GOSGORTECHnADZOR
➁
Other approvals are available, consult factory for more details
➀
For CCE approved units, use the ATEX explosion proof model
numbers.
➁
Consult factory for proper model numbers.
