FP57 Series Double Bolt Visual Plunger Flow Switch_Plunger Flow Switch_Flow_Products_Electromagnetic Flowmeter|Turbine Flowmeter|Flow S

Introduction

Principle & Structure

In-line installation, mechanical flow switch for liquid or gaseous media. Available in robust plastic, aluminium or stainless steel housings. When the medium pushes the plunger spring to the set position, the magnetic field acts on the reed switch to output a passive on-off signal, and provides an indication of the instantaneous flow trend.

Features

The sensor parts are fixed with double bolts, so that the switch can be used in high-frequency vibration conditions.

application

Gas-liquid dual-use, industrial automation / mechanical equipment / air compression industry / refrigeration and air conditioning

Visual Plunger Flow Switch Specifications

technical parameter

Predetermined area:	See parameter table for details		Shell: POM engineering plastic
Accuracy:	±2.5% of total scale		Plunger: POM engineering plastic
Hysteresis:	Depends on switching point, min. 0.5L/Min		Spring: 316L stainless steel SUS1.4310
Switch setting scale:	The medium is water, the temperature is 20°C, and the installation position is calibrated in the horizontal installation state. The change of medium and temperature will slightly affect the switch value.		Seal: NBR
LED light indication:	Active DC24V all provide LED display switch status	FP57…FP Material:	Magnet: Barium
Flow display:	The current instantaneous flow trend can be displayed on site.		Housing: Anodized aluminum
Wiring:	Herssman joint (DIN43650)		Plunger: POM engineering plastic
output:	Passive Reed Switch, Capacity 24VDC/230VAC		Spring: 316L stainless steel SUS1.4310
output:	0.5A (3A special custom)		Seal: NBR
Pressure resistance:	15bar (POM plastic) 50bar (aluminum type)	FP57…FA Material:	Magnet: Barium
	50bar (bronze alloy) 100bar (stainless steel)		Housing: 316L stainless steel
	Customized 200bar (optional)		Plunger: POM engineering plastic
Average pressure loss:	0.25bar(at 25L/min)		Spring: 316L stainless steel SUS1.4310
Medium temperature:	Max 90℃		Seal: NBR
Protection class:	IP65	FP57…FK2 Material:	Magnet: Barium
			Housing: Bronze alloy UNI EN 12165
			Plunger: POM engineering plastic
			Spring: 316L stainless steel SUS1.4310
			Seal: NBR
		FP57…FB Material:	Magnet: Barium

Parameters Table

model	Maximum flow	Variable range	G	L	H	B	X	weight
	L/min (water)	L/min (water)	mm	mm	mm	mm	mm	kg
FP57-008…A(k)008…	60	0.6(0.1)..8(7)	G1/4	93	61	30	12	0.22(0.53)
FP57-010…A(k)008…		0.6(0.1)..8(7)	G3/8		61	30	15	0.20(0.51)
FP57-015…A(k)008…		0.6(0.1)..8(7)	G1/2		61	30	15	0.18 (0.48)
FP57-020…A(k)008…		0.6(0.1)..8(7)	G3/4	105	65	35	15	0.23(0.65)
FP57-025…A(k)008…		0.6(0.1)..8(7)	G1		67	40	15	0.32(0.82)
FP57-008…A(k)015…		1(0.5)…15(13)	G1/4	93	61	30	12	0.22(0.53)
FP57-010…A(k)015…		1(0.5)…15(13)	G3/8		61	30	15	0.20(0.51)
FP57-015…A(k)015…		1(0.5)…15(13)	G1/2		61	30	15	0.18 (0.48)
FP57-020…A(k)015…		1(0.5)…15(13)	G3/4	105	65	35	15	0.23(0.65)
FP57-025…A(k)015…		1(0.5)…15(13)	G1	105	67	40	15	0.32(0.82)
FP57-015…A(k)028…		2(0.8)…28(25)	G1/2	93	61	30	15	0.18 (0.48)
FP57-020…A(k)028…	80	2(0.8)…28(25)	G3/4	105	65	35	15	0.23(0.65)
FP57-025…A(k)028…		2(0.8)…28(25)	G1		67	40	15	0.32(0.82)
FP57-020…A(k)070…	120	27(21)…70(66)	G3/4		65	35	15	0.23(0.65)
FP57-025…A(k)070…		27(21)…70(66)	G1		67	40	15	0.32(0.82)
FP57-032…A(k)…	150	0.6(0.1)..70(66)	G1 1/4	150	67	50	15	0.52 (1.02)

Note: 1. (*) The parameters in brackets are reset points, and the parameters outside brackets are action points. If the lower limit alarm (monitoring flow is too small) refer to the reset point parameter. The upper limit alarm (too large monitoring flow) refers to the operating point parameter.

2. The above parameters are obtained by installing the switch in a horizontal pipeline and testing with 20°C water as the medium.

Selection table

FP57-	Two-Bolt Visual Plunger Flow Switch
	Applicable pipe diameter
		Threaded port G1/4 Nominal diameter DN8
		Threaded port G3/8 Nominal diameter DN10
		Threaded port G1/2 Nominal diameter DN15
		Threaded port G3/4 Nominal diameter DN20
		Threaded port G1 Nominal diameter DN25
		Threaded port G1 1/4 Nominal diameter DN32
		Connection method
			Female thread (female connector)
			External thread (male connector)
			Hose quick connector (please note the inner diameter of the hose when ordering)
			signal type
				24V±20%DC, 0.5A, 26W; active contact signal; normally open signal, adjustable range
				24V±20%DC, 0.5A, 26W; passive contact signal; normally open signal, adjustable range (no LED indicator)
				24V±20%DC, 0.5A, 26W; passive contact signal; normally closed signal single-point setting (no LED indicator)
				24V±20%DC, 0.5A, 26W; active power supply normally open + normally closed output, adjustable within the range (Hersman sealing treatment, flying lead lead-out method, cable length needs to be noted)
				230V±15%AC, 1A, 48W; passive contact signal normally open signal, adjustable within the range (no LED indicator)
				230V±15%AC, 1A, 48W; passive contact signal, normally closed signal, single-point setting (no LED indicator)
				380V±15%AC; passive contact signal, normally open signal, single-point setting (no LED indicator)
				380V±15%AC; passive contact signal, normally closed signal, single-point setting (no LED indicator)
				AC and DC universal type; passive contact signal normally open signal, adjustable within the range (no LED indicator)
				AC and DC universal type; passive contact signal normally closed signal single point setting (no LED indicator)
				No output unit is only used for instantaneous flow trend indication
				Wetted body material description
					POM reinforced plastic liquid body
					Anodized aluminum liquid body
					Bronze alloy structure wet body
					Stainless steel 1.4301(304) Liquid body
					Stainless steel 1.4435 (316L) liquid body
					Alarm setting
						Normal flow is less than or equal to 5L (optional for specific customers)
						Setting range: 0.6…8L/min (0.1…7L/min for offline alarm)
						Setting range: 1…15L/min
						Setting range: 2…28L/min
						Setting range: 27…70L/min
						electrical connection
							Hessman terminal connector (DIN43650)
							(special alternative) VARIO
								The scale indication surface is installed from the top view (the panel defaults to the front side without this item)
								Output two-way switch alarm
The complete data of this selection table, please contact the sales staff or email to sales@kewill-auto.cn for complete samples.