Best Manual Flow Control

JOR Aquarium Siphon, Fish Tank Gravel Cleaner Kit, for Small Fish Tanks and Aquarium, 65-inches

...ing of the fish tank, and there is no need to immerse your hands in water when using it!.
✔【Safe Manual Design】Compared with most electric fish tank cleaning tools, this manual fish tank gravel cleaner is not electrified and will not harm your beloved fish during use. The manual design can also help you better control the pressure and water flow , So it is simpler, safer, and noiseless. In addition, the built-in 3D filter plug can effectively prevent your small fish, gravel and water plants from being sucked out..
✔【Simple Working Principle】The principle of this aquarium siphon gravel cleaner is gravity, so the water outlet must be at least 19.7 inches lower than the water inlet when in use. The air-pressing button can produce a strong siphon after being pressed, so press the button several times until the water fills the entire inlet pipe, then release the button, and the water will flow out automatically. Moving gravel and sand up and down in the inlet pipe can remove debris and dirt in the aquarium..
✔【Suitable for Different Sizes of Aquariums】This fish tank cleaning tool is equipped with a 16.5in water inlet pipe and a 17.7in extension pipe. The total length can be extended from 15.7 inches to 31.5 inches by connecting pipes. There....

Voltage: 24V、Current: 2A max、Power: Less than 50W、Flow range: 1~452ml/min、Pump tube: BPT（longer service life time）..
Digital tube shows instant speed and flow rate. Precise control of stepper motor, speed adjustment resolution 0.1 rpm..
Support start/stop, direction change, speed regulation, calibration, reverse suction, etc..
Rich control mode, support rotary encoder, foot switch, external analog (4-20mA and 0-5V), 485 communication (Modbus) control..
Support power-off memory function, which can automatically save the operation parameters when the power was last lost.
support three working modes: full-automatic cycle, semi-automatic cycle and manual.
support running by speed and running by flow..

Feita 982 glue dispenser machine using 0.18CV constant flow solenoid control valve,with indicator switch,adjustable air suction device up to 15 inches / mercury (Hg). Service life could be more than 12 years..
Precise control of dispensing drops and dispensing cycle, two Controlling Modes: manual mode & semi-automatic mode. Materials could be dispensed continuously until operator release the foot pedal when it is in the manual mode..
The humanized function, simpler operation, easier coating, lineation and drop, highlight high-quality products,improve production efficiency..
The professional precise glue dispenser be used the latest digital control system,digital display, assure timing output consistently.It need to be connected to air compressor (1.5HP or above).
Feita automatic glue dispenser widely used on electronics, aviation, optics, chemistry, automobile, medical treatment, petroleum, packaging, jewelry and machinery industry..

Zilog Dual Core Microcomputer Processor - This unit heats up quickly, works well. Features Three LED Display System. You can easily change the digital readouts back and forth "Centigrade to Fahrenheit" for the soldering iron and hot air temperatures with easy steps..
PID Temperature Control Technology - This unit features Temperature Control Technology which the program will cycle every 20 milliseconds to detect the actual temperature of the soldering iron's heating element, quickly correct it with a rapid return to the correct set temperature..
Exclusive Air Gun Manual/Automatic Mode - The air gun automatic function is a safety measure which ensures the heat is automatically cut off when the air gun is in its holder..
Air Flow Adjustable and Readable - Dual blue LED digital displays to show precision temperature for hot air gun & soldering iron and one blue digital display to show air flow (20 - 80)..
1 Year Warranty (USA Exclusive) & User-friendly Design Features - Celsius/Fahrenheit Programmable, Temperature Correction Feature: -50 °C to +50 °C, Soldering Iron Sleep Function, Hot Air Gun Manual /Automatic Function, Hot Air Gun Fail-Safe Protection..

Professional grade 3/4" anti-siphon valve with flow control.
compatible with any standard sprinkler timer.
Designed for above ground installation, will prevent back flow when properly installed 6" above highest sprinkler head.
Operates automatically or manually with manual bleed screw.
Reverse Flow design reduces stress on diaphragm for dependable operation.
Energy efficient, low power encapsulated solenoid with captured plunger.

...ean】The paint sprayer can be easily assembled with no tools, even if you are a beginner, you can easily get started after reading the manual. It is very important to clean the paint sprayer thoroughly after use, it comes with a cleaning brush and a needle to clean paint left in the nozzle part..
【Adjustable Flow Control】The amount of paint output can be controlled by adjusting the flow control knob to suit a wide variety of projects. According to different spraying effect requirements, reasonable control of paint flow can achieve better effect and avoid paint waste..
【What You Will Get】1X Paint Sprayer, 4X Size Nozzles, 5 X Paint Filters, 1X Viscosity Cup , 1X Nozzle Cleaning Needle, 1X Cleaning Brush, 1X Dust blowing joint, 1X Clean connector, 1X Pot lid,1X User Manual. If you have any questions, please contact us via your order, you will get a reply in 18 hours, our technical team and after-sales team are always behind you. LCC JWMLVIRNG.

Using 0.18CV constant flow solenoid control valve,with indicator switch,adjustable air suction device up to 15 inches / mercury (Hg)..
Precise control of dispensing drops and dispensing cycle.
Two Controlling Modes: manual mode & semi-automatic mode..
Manual Mode: Continuous or momentary,it's adjustable..
Applies: Auto Electric ,Package ,Household appliances ,Bearing ,Board ,Electronic component ,Camera ,Pharmacy ,Electrical components ,Capacitors ,Production process handling ,Instrument ,Jewelry ,Relays ,Quartz ,IC ,Lighting ,Radio equipment ,Wire connectors..

BLUETOOTH CONTROL: Use your mobile device’s Bluetooth functionality to control and program your B-hyve (Android or iOS) from within its Bluetooth signal range of up to 150 feet. You can program your timer through the app or with your web browser.
To be wi-fi enabled, you will need to purchase Orbit’s 21006 B-hyve Wi-Fi Hub.
KNOW THE FLOW: The built-in flow meter allows you to track water usage, and can be measured by gallons or by time. Ideal for all kinds of applications, including watering plants, gardening, washing your car, filling your pool, and greenhouse/hydroponics.
MULTIPLE USES: Ideal for gardens, hydroponics, greenhouses and more.
QUICK SETUP: One-touch manual watering at the timer for instant faucet use at any time.