Water Solenoid Valve A04 DC12V Pressure Normally Closed 4 Tube External Screw Pilot Type Plastic Body Copper Joint for Water Stop Flow Control
Water Solenoid Valve A04 DC12V Normally Closed Pilot Type with External Screw

This water solenoid valve provides dependable automatic shut-off for water systems, using a DC12V pilot-type mechanism that stays closed when power is off. The A04 model is built with a plastic body and copper joint, rated for working pressures from 0.02 to 0.8 mpa and normal temperature water service. Its 4-point external screw connection simplifies installation into existing plumbing lines. Whether used in irrigation controls, aquariums, or automated dispensing, this valve offers a straightforward solution for flow management.
Features and Construction

The valve combines electrical actuation with a compact form factor suitable for tight spaces.
Material and Build
Plastic body reduces weight and resists water corrosion, while the copper joint provides a secure threaded port for standard pipe fittings. The pilot-type internal design uses differential pressure to operate, ensuring reliable performance within the specified pressure range.
Size and Practical Fit
With a nominal diameter of 4 points (approximately 13mm outside diameter), the valve fits common small-bore plumbing connections. The external screw threads allow direct mounting onto matching female fittings without additional adaptors.
Uses and Placement

This valve suits a range of water-stop applications where electrical control is required.
Event or Professional Use
Plumbers and irrigation technicians can integrate this valve into automated watering systems, safety shut-off circuits, or remote-controlled plumbing setups. Its normally closed configuration prevents accidental flooding when power is lost.
Everyday Home Use
Home users may employ this valve for aquarium water changes, hydroponic nutrient dosing, or DIY water control projects. The DC12V requirement makes it safe to operate with low-voltage power supplies common in household electronics.
Benefits and Buying Value

This valve offers practical advantages for system builders and maintenance-focused users.
Reuse and Low Maintenance
The plastic body and copper joint are resistant to water scale and corrosion, reducing the need for frequent replacement. As a simple solenoid device, the valve has few moving parts and can be cycled many times under normal operating conditions.
Why Choose This Product
For a low-cost, normally closed water solenoid valve with a standard 4-point external thread and DC12V actuation, the A04 model presents a no-fuss option. Its specifications are clearly defined, making it easy to match to existing system requirements without guesswork.