Exploration proof flow switch quota water flow switch indication switch supply

Product parameters:

1. Measurement range: water: 0.03-3m/sOil: 0.03-3m/sGas: 2-20m/s2 Pressure resistance: 4MPa (special 40MPa) 3 Connection method: Thread G1/2 ^ ^, G1/4 ^ ^ ^, other4 Switching time: ON: typical ≥ 4s (1-13s) OFF: Typical ≥ 4s (1-15s) 5 Temperature change reaction time: ≤ 12s6 Working voltage: DC24V, AC/DC220V7 Power consumption: 2W8 Output: Relay, NPN/PNP output9 Contact capacity: 0.4A/125VAC, 2A/30VDC10 Insulation impedance: 50M Ω at 100VDC11 Probe material: 304 stainless steel12 Shell material: aluminum alloy13 Working temperature: -10 ℃ -60 ℃ 14 Environmental conditions: -20~85 ℃, ≤ 85% RH15 Exploration proof grade: Exd Ⅱ B T4Gb16 Protection level: IP66

Product features:

1. Intrinsically safe exploration proof type

2. Effectively prevent angle

3. Suitable for a wide range of pipe diameters and can be adjusted at a certain spot

4. High pressure type, capable of standing pressure of 40MPa

5. The indicator light directly displays changes in flow rate

Product Extension:

Specific uses and precautions for using water flow switches

Water flow switches are often referred to by many customers as water flow alarms, flow switches, etc. Why do users call them such names? Shixing Zhongcheng believes that this is a combination based on actual usage, which also reminds us that keyword selection can start from this point Today, I will mainly tell you what to pay attention to and understand its principle before selecting a water flow switch

Water flow switch is a sensor used for water circulation control, water inlet and outlet control, water heating control, water pump switch control, solenoid valve on off control or water outlet power off, water outlet power on control and other processes of electric water heaters, solar water heaters, air conditions and other water systems When a certain flow rate is reached, the water flow will be converted into on off electrical signals

The water flow switch insists of a magnetic core, a return spring, a forced copper or polycarbonate casing, and a sensor The outer shell is made of H58 forged copper or polycarbonate, the magnetic core is made of nylon iron iron permanent magnet material, and the sensor magnetic control switch is an imported medium power component The interfaces between the inlet and outlet ends are G1/2 ″ or other standard pipe threads

Working principle: When the water flow rate in the pipeline is greater than 0.75L/min (relative to G1/2&# 39; thread), the magnetic core generates display under the action of water flow and drives the magnetic source to generate magnetic control, causing the sensor to output a ^ 1 ^ ^ ^ switch signal This signal is input to the equipment control system, and after power amplification, the purpose of water flow control is achieved When the water flow rate in the pipeline is less than 0.75L/min, the magnetic core drives the magnetic source to return to its position under the rust of the reset spring, causing the sensor to output a ^ ^ 0 ^ ^ switch signal and stop the system's operation

The water flow switch has advantages such as high sensitivity and strong durability 4 points (G1/2) Main technical parameters Appearance dimensions: length X diameter=62mmX Φ 22mm Suitable ambient temperature ≥ 1 ℃ Suitable working temperature ≤ 100 ℃ Small start flow rate ≥ 0.75L/min Large through flow rate ≤ 5L/min Rated working pressure ≤ 0.65Mpa Shell high pressure ≤ 1.5Mpa Signal output load DC24V/1A, AC36V/1A or AC220V/0.1A Adaptation range and conditions: (1) Environmental temperature not less than 0 ℃ Do not strike the housing Stay away from magnetic objects (2) The output of the signal is a switching value, so the connection method of the control object must also be a switch control relationship (3) The power of the controlled object shall not exceed the signal load capacity (4) This device is a water medium control device and cannot be controlled with other media Multiple specifications and sizes