3/8 Plastic water solenoid valve 0.2-10 Bar Latching 4115BB
£34.06
Description
3/8 inch WRAS latching / bi-stable plastic water solenoid valve – RPE R Mini 4115BB
A WRAS-approved latching (bi-stable) water solenoid valve designed for ultra-low power potable water control. The RPE R Mini 4115BB uses short pulse actuation to remain open or closed without continuous power, making it ideal for battery-powered, solar and energy-efficient water systems.
Valve function and operation
Function: 2/2 way latching / bi-stable
Operation: Pressure assisted (minimum 0.2 bar pressure differential required)
Actuation principle:
• Short power pulse opens valve
• Reverse polarity pulse closes valve
• No holding power required between cycles
Ports and flow
Port size: 3/8 BSP male
Orifice size: 11.0 mm
Kv flow factor: 27.07 L/min (based on water with 1 bar pressure difference)
Pressure ratings
Operating pressure range: 0.2 to 10 bar
Construction and materials
Body material: Nylon (white), glass-filled (GF)
Coil and electrical details
Coil type: R latching coil
Power consumption: 2.25 W
Ingress protection: IP00
Electrical connection: Faston tags 6.3 × 0.8 mm
Voltage requirements
Nominal voltage:
• 6 V DC (375 mA, 15–20 millisecond pulse)
Accepted alternatives:
• 9 V DC (shorter pulse)
• 12 V DC (shorter pulse)
Pulse timing
Opening pulse: 15–20 milliseconds
Closing pulse: 15 milliseconds (reverse polarity)
Media compatibility
Potable water
Drinking water systems compatible with valve materials
Approvals and certifications
WRAS approved
KTW and DM174 drinking water compliance
ACS health compliance certificate
ENEC European electrical certification
CSV (European Union Aviation Safety Agency)
MOCA FCM (Food Contact Materials)
NSF food certification for public health protection
Optional UL (Underwriter Laboratories) certification
Typical applications
Battery-powered water control systems
Solar-powered installations
Water metering and smart water devices
Electrical taps
Drinking water and appliance inlet systems
Operating principle summary
The RPE R Mini 4115BB operates using a brief low-power pulse (15–20 ms) to latch the valve open. A short reverse-polarity pulse releases the internal magnet to close the valve. This bi-stable design eliminates continuous power consumption, significantly reducing energy usage while maintaining reliable water shut-off and control.
Technical Specification
Brand: RPE srl
Model: 4115BB
Width: 38.50 mm
Height: 72.22 mm
Depth: 65.30 mm
Weight: 0.20 kg
Valve / Product Type: Solenoid Valve
Body Material: Nylon
Voltage: 6vDC
Port Size: 3/8 thread
Function: 2/2 Latching
Operation: Pressure Assisted
Pressure: 2 Bar, 2.5 Bar, 3 Bar, 3.5 Bar, 4 Bar, 4.5 Bar, 5 Bar, 5.5 Bar, 6 Bar, 6.5 Bar, 7 Bar, 7.5 Bar, 8 Bar, 8.5 Bar, 9 Bar, 10 Bar
Seals: NBR
Approval: ATEX,WRAS,IP etc: IPX0 (Faston Tag), WRAS
Media: Water
Options required: Anti Water Hammer, Mounting Holes
Orifice: 11mm
