More on the results of vacuum pumps:

Automatic Water Pump | eBay

Power: 70W. 1 DC 12V 70W Water Pump. This is a high quality DC micro diaphragm pump. The water pump with a pressure switch will be automatically cut off when the pressure of water outlet is big enough ...<< more>>

12V Water Pump | eBay

Power: 70W. 1 DC 12V 70W Water Pump. This is a high quality DC micro diaphragm pump. The water pump with a pressure switch will be automatically cut off when the pressure of water outlet is big enough ...<< more>>

Automatic Water Pump, Automatic Water Pump - alibaba

offers 45,411 automatic water pump products. About 23% of these are pumps, 1% are auto water pump, and 1% are water dispensers. A wide variety of automatic water pump options are available to you, such as single-stage pump, multistage pump, and screw pump. ...<< more>>

Automatic Electronic Switch Control Water Pump Pressure

Automatic stopping of the pump after using the water (closing of tap) Protecting the electric pump against water supply failure: pump stops after 8 seconds of operation Protecting the system against risk of water hammer thanks to the built-in check valve Easy reading. ...<< more>>

Automatic Water Pump Controller | Full Circuit Available

Fig. 1: Automatic water pump controller circuit The lower limit ‘A’ is connected to the base of transistor T1 (BC547), the collector of which is connected to the 12V power supply and the emitter is connected to relay RL1. ...<< more>>

Automatic Water Pump High Pressure Diaphragm, for Camper

An indicator arrow on the pump surface to direct the flow of water and directs it to the outlet water side Wide applications, such as for car wash, solar water, remote water equipment, some place need to control the switches frequently, save energy somewhere, etc ...<< more>>

Mini Automatic Water Pump, Mini Automatic Water Pump

A wide variety of mini automatic water pump options are available to you, such as centrifugal pump, vacuum pump, and jet pump. You can also choose from single-stage pump, diaphragm pump, and gear pump. ...<< more>>

$1 AUTOMATIC WATER LEVEL CONTROLLER - Instructables

It’s an automatic switching circuit that used to control an AC water pump. Operation of this circuit is simple.wen the water level goes below the limit the lower level sensor will detect it and activate the water pump.wen the water level reaches the upper limit the upper limit sensor detect it and switch of the water pump. ...<< more>>

12 Volt Water Pumps | Northern Tool + Equipment

Reliable 12 Volt Water Pumps. 12 volt water pumps transfer water fast with GPM up to 2,580. These 12 volt water pumps are perfect for boats, RVs, and more due to their energy efficiency and ability to fit in tight spaces. ...<< more>>

Shurflo 2088-474-144 24V DC Standard Surface Pump | altE

The higher powered 12V pumps can easily burn out the controller if the pump pulls more current than the controller can handle. These controllers are rated at 5 amps and 7 amps maximum output current. Check the electrical specifications of your pump before purchasing a controller....