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Honsberg - FF Series Flow Switch

Piston

The Honsberg FF series flow switch is a simple unit which indicates when a specific flow rate has been acheieved. The basic operation of the switch is when the volume flow raises a piston (fitted with a magnet) out from a valve seat which is against a spring force and when the specificed flow rate is achieved the piston actuates an hermetically separated reed switch. The FF is designed for horizontal inwards flow; switching head not recommended underneath; other installation positions are possible; the installation position affects the switching point and range.

*The switch point must always be specified/factory-set item

Adjusted switching value
Highly reproducible
Insensitive to dirt
Adjustment for oil or gas
Special values

Switching Range 0,4..90 l/min H₂O
Water (oils on request)
G¼ up to G1½
Bronze, brass, stainless steel, ferrite & NBR
Pressue range from 16 bar up to 200 bar

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Technical data / Documents

Product description

Ordering information

Accessories & Related products

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Technical data

Accuracy	± 3% of reading value, but at least ± 0.3 l / min
Connection type	Internal thread, G ¼ "
Contact rating max	50 VA
Electrical connection	1.5 m fused cable
Flow max	10 l/min
Flow range max	9 l/min
Flow range min	0,4 l/min
Function	Flask, reed contact
IP class	IP65
Material flask	Stainless steel 303
Material of body	Nickel-plated brass

Material of connection	Bronze
Material of seals	NBR
Material spring	Stainless steel 301
Pressure drop	Approx. 0.4 bar at maximum flow
Pressure range max	200 bar
Temperature of media to	110 °C
Type of flow component	Flow Switches
Weight	0,6 kg
Viscosity max	1 cSt
Voltage ac max	230 V

Downloads

FF datablad.pdf

Measurements and connections

Technical illustrations

Product description

*The switch point must always be specified/factory-set item

Adjusted switching value
Highly reproducible
Insensitive to dirt
Adjustment for oil or gas
Special values

Ordering information

*The switch point must always be specified/factory-set item

Specify direction of flow, medium, and switching point.
For oils, state viscosity, temperature and designation (e.g. ISO VG 68) (enquire about range).
For gases, state pressure (relative or absolute), temperature and medium (e.g. air) (enquire about range).

Installation

Include straight calming section of 5 x DN in inlet and outlet.
If the media are dirty, install a filter (use magnetic filter for ferritic components).
It must be ensured that the values given for voltage, current, and power are not exceeded.
When switched on, a load must be connected in series. The electrical details apply to ohmic loads. Capacitive, inductive and lamp loads must be operated using a protective circuit.
Standard: horizontal inwards flow; switching head not recommended underneath; other installation positions are possible; the installation position affects the switching point and range.

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Parts	Connection type	Flow max	Flow range max	Flow range min	Pressure range max	Type of flow component	Weight
0,4..9 l/min, G¼, 200 bar, Normally open Art: FF-008GR009 Copied	Internal thread, G ¼ "	10 l/min	9 l/min	0,4 l/min	200 bar	Flow Switches	0,6 kg
0,4..10 l/min, G⅜, 200 bar, Normally open Art: FF-010GR010 Copied	Internal thread, G 3/8 "	15 l/min	10 l/min	0,4 l/min	200 bar	Flow Switches	0,6 kg
0,4..12 l/min, G½, 200 bar, Normally open Art: FF-015GR012 Copied	Internal thread, G ½ "	20 l/min	12 l/min	0,4 l/min	200 bar	Flow Switches	0,6 kg
0,6..25 l/min, G¾, 25 bar, Normally open Art: FF-020GR025 Copied	Internal thread, G¾ "	40 l/min	25 l/min	0,6 l/min	25 bar	Flow Switches	0,7 kg
1,5..40 l/min, G1, 25 bar, Normally open Art: FF-025GR040 Copied	Internal thread, G 1 "	60 l/min	40 l/min	1,5 l/min	25 bar	Flow Switches	1 kg
2..60 l/min, G1¼, 16 bar, Normally open Art: FF-032GR060 Copied	Internal thread, G 1¼ "	100 l/min	60 l/min	2 l/min	16 bar	Flow Switches	1,5 kg
Art: FF-040GR090 Copied	Internal thread, G 1½ "	150 l/min	90 l/min	3 l/min	16 bar		2 kg

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