Description
15mm WRAS Latching Solenoid Valve 0–10 Bar – ASCO H262K641
The ASCO H262K641 is a 15mm WRAS approved bi-stable latching solenoid valve designed for potable water, sanitary controls and water-saving applications where extremely low electrical consumption is required.
Unlike a conventional continuously energised solenoid valve, the magnetic latching design requires electrical power only when changing valve state. Once switched, the valve remains mechanically latched without continuous coil power, making it particularly suitable for battery-powered water controls, urinal flushing systems and low-energy sanitary equipment.
The H262K641 version has a 2mm orifice, 2.5 L/min flow rate and full 0–10 Bar operating pressure range.
Valve Function & Operation
Function: 2/2 Way Bi-Stable Latching
Operation: Direct Acting
Standard Configuration: Without Manual Operator
Pressure Range: 0–10 Bar
Minimum Differential Pressure: 0 Bar
The zero minimum differential pressure makes the valve suitable for applications where supply pressure may fall very low, while the magnetic latching mechanism minimises electrical energy consumption.
15mm Compression Connections
Connection: 15mm Compression Fittings
The H262 series uses 15mm compression fittings for straightforward integration into potable-water and sanitary pipework.
Orifice & Water Flow
Orifice: 2mm
Flow Coefficient Kv: 0.15 m³/h
Water Flow: 2.5 L/min @ 1 Bar ΔP
Pressure Range: 0–10 Bar
These figures specifically apply to the H262K641 version.
WRAS Approved for Potable Water
The H262K641 uses WRAS approved EPDM seals and disc, making it suitable for potable-water applications where WRAS approval is required.
Seal & Disc: EPDM
Media: Water
WRAS: Approved
The manufacturer's product coding specifically identifies the EM0 EPDM seal and disc configuration as WRAS approved.
Water & Temperature
Media: Water
Media Temperature: 0°C to +85°C
Ambient Temperature: 0°C to +40°C
Seal Material: EPDM
The manufacturer's latching-valve specification gives water service from 0°C to +85°C.
Magnetic Latching Technology
The principal advantage of the H262K641 is its bi-stable magnetic latching operation.
A short electrical pulse changes the valve state. The magnetic latching mechanism then maintains that position without requiring the coil to remain continuously energised.
This can significantly reduce overall energy consumption compared with a conventional solenoid valve in applications where the valve remains open or closed for long periods.
Ideal for Battery Powered Systems
Because continuous coil power is unnecessary, the H262K641 is particularly well suited to:
✓ Battery Powered Controls
✓ Water Saving Systems
✓ Remote Water Controls
✓ Automatic Sanitary Equipment
✓ Low Energy OEM Equipment
The reduced electrical demand can considerably extend battery life compared with continuously energised solenoid valve designs.
Coil & Electrical Specification
Coil Power: 6 Watts
Coil Insulation: Class F
Electrical Interface: S1 Spade Connector
The manufacturer's H262 latching range includes standard DC voltage configurations, with the H262K641 using a 6W operator.
Voltage Options
The H262 magnetic latching family supports:
✓ 3V DC
✓ 6V DC
✓ 9V DC
✓ 12V DC
The product coding information also identifies a 24V DC voltage code within the H262 series.
For your standard stocked/configured H262K641 valve, 3V DC and 6V DC can remain the principal advertised options if those are the versions you supply.
Installation
The valve can be mounted in any position without affecting operation.
The manufacturer also provides two mounting holes in the valve body, with optional steel or AISI 304 stainless steel mounting brackets available.
H262 Latching Valve Range
The 15mm H262 magnetic latching family provides several orifice and flow configurations:
H262K640 – 1.2mm – 0.8 L/min – 0–10 Bar
H262K641 – 2.0mm – 2.5 L/min – 0–10 Bar
H262K642 – 3.2mm – 5.0 L/min – 0–3 Bar
H262K643 – 4.0mm – 7.5 L/min – 0–2 Bar
H262K644 – 6.7mm – 13.7 L/min – 0–0.7 Bar
This allows the valve to be selected according to the required balance between flow capacity and maximum operating pressure.
Typical Applications
✓ Urinal Flushing Systems
✓ Sanitary Control Systems
✓ Commercial Washrooms
✓ Public Facilities
✓ Water Saving Installations
✓ Battery Powered Water Controls
✓ Potable Water Systems
✓ Automatic Taps
✓ OEM Water Management Systems
✓ Low Power Automation
Why Choose the ASCO H262K641?
The H262K641 combines WRAS approved potable-water construction with magnetic latching technology, making it particularly useful where both water compliance and low electrical consumption are required.
Its 15mm compression fittings, zero minimum pressure, 0–10 Bar operating range and 2.5 L/min flow make it suitable for a broad range of sanitary and water-saving equipment.
Most importantly, the valve does not require continuous electrical power to maintain its switched state, providing a major advantage for battery-powered and energy-conscious water control systems.
Available Options
15mm Compression Fittings
WRAS Approved EPDM Seals
3V DC
6V DC
Alternative DC Voltages
Alternative Orifice Sizes
Panel Mount WRAS Version
Steel Mounting Bracket
Stainless Steel Mounting Bracket
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