Product details
Paddle flow switch(liquid flow switches, flow switch) ZZS FLOW SWITCH
Specifications:
Our Liquid Switches are Single-Pole-Double-Throw(SPDT) flow switches that are used in liquid lines carrying water, ethylene glycol, or other liquid not classified as hazardous. They can be wired to energize one device or powered from the same source when liquid flow either exceeds or drops below the set flow rate.
The rate of the flow can be adjustable and it is stable
Liquid temperature range: 0~+100
Max. Working Pressure: 13.5bar
Flow switch can not be used where the liquid in the pipes will drop below the liquid's freezing point
Product Flow Switch
Maximum Liquid Pressure 150psig()1034kpa
Minimum Liquid Temperature 32oF(16)
Maximum Liquid Temperature 250oF(121)
Electrical Ratings 120VAC 208VAC 240VAC 277VAC 24VDC
Horsepower 1 1 1 -
Full Load Current 16 8.8 8.8 -
Locked Rotor Current 96 52.8 48 -
Non-inductive Current 16 16 16 -
Pilot Duty 125VA at 24/277VAC
Wiring Connection Screw Type Terminals
Pipe Connector 1", 1.5" NPT Threads
Type Connection size Range of required to actuate switch (L/min)
Min. Flow Max. Flow
Decrease of flow Increase of flow Decrease of flow Increase of flow
ZZS 1 18 21 45 50
2001-1-2 30 35 100 105
2 50 58 150 155
2002-1-2 75 86 187 200
3 100 115 225 260
| Model | Connection | Notes | Accuracy | |
| HFS-25 | 1″-11½NPT Screw | Red case | 5% | |
| HFS-20 | ¾″-14NPT Screw | |
| HFS-15 | ½″-14NPT Screw | |
| JYF-25 | 1″-11½NPT Screw | White case | 2-3% | |
| JYF-20 | ¾″-14NPT Screw | |
| JYF-15 | ½″-14NPT Screw | |
| Rated Voltage ⁄ Rated Amps | A.C.125 ~ 250V | Power (Cosmp.) |
| Non-inductive Current | 12A | 1 |
| Full Load | 12A | 0.75 |
| Locked Roter | 72A | 0.45 |
| Required Flow for actuating switch (m3/hr) |
| Pipe size (in) | 1 | 1-¼ | 1-½ | 2 | 2-½ | 3 | 4 | 5 | 6 | 8 |
| Min. Flow | Flow lower, 1-2 closed | 1 | 1.3 | 1.7 | 3.1 | 4.1 | 6.2 | 8.4 | 12.9 | 16.8 | 46.6 |
Flow lower,
1-3 closed | 0.6 | 0.8 | 1.1 | 2.2 | 2.8 | 4.3 | 6.1 | 9.3 | 12.3 | 38.6 |
| Max. flow | Flow lower,
1-2 closed | 2 | 3 | 4.4 | 6.6 | 7.8 | 12 | 18.4 | 26.8 | 32.7 | 94.2 |
Flow lower,
1-3 closed | 1.9 | 2.8 | 4.1 | 6.1 | 7.3 | 11.4 | 17.3 | 25.2 | 30.7 | 90.8 |
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