These 12-Volt DC electric solenoid valves with barbed inlet and outlet ports are great for projects. A model: These types of valves are often used for automatic faucets, foot operated faucets, drinking fountains etc.NOTE A model: Please note that diaphragm-type solenoid valves are NOT suitable for gravity-fed systems (ie. draining liquids out of containers or tanks without using a pump) because of the 3 psi minimum pressure requirement. Check our other auctions for direct acting valves which are suitable for gravity-fed systems. B model: This routine for no pressure valve, apply to 0-02 MPA water pressure, used in ordinary water machine Water flow characteristic: 002 Mpa greater than 04 L/min; 010 Mpa greater than 15 L/min; 030 Mpa greater than 35 L/min; 080 Mpa greater than 6 L/mi. This valve is normally closed type solenoid valve, the electricity on (water), off(no water), in the direction of flow is towards the direction (reverse connect does not work)As its name suggests,pressure is the water pressure,No pressure that is no water pressurePressure applied to 002 ~ 08Mpa water pressure,no pressure applied to 0 ~ 02Mpa water pressureSolenoid valve that not using within the range of normal pressure can not work normally.colour:white & blackmaterial:metal & Plasticsize: 63*55mmtype:no PressureVoltage: 12-Volt DCCurrent: 450 mAOperation Mode: Normally Closed (Valve opens when energized)Valve Type: Diaphragm Valve ( operated)Inlet/Outlet Ports: Hose barbs for 3/8inch ID hose (ID = inside diameter)Pressure Rating:--A model: 3-140 psi(0028Mpa)Suitable Media: Water, Very Low Viscosity FluidsTemperature Limitations: Maximum Fluid Temperature 195 Fahrenheit Valve Response Time: Fast ActingFilter Screen: Stainless Steel Inlet FilterSpring: Stainless Steel ( 316)Plunger: Stainless Steel ( 430)Plunger Tip: Silicon RubberDiaphragm: Nitrile Butadiene Rubber (NBR)Diaphragm Plate: Polyoxymethylene (POM)Mounting Screws: 3 mm (not included)Mounting Position: AnyEstimated Valve Life: More than 300,000-500,000 Cyclespackaging details:1*Electric Solenoid ValveNote: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.