This ZL-2129 2-way 28mm motorised zone valve securely controls the flow of water in both iron and copper pipe systems. Specifically, it provides reliable and automated flow management designed for central heating systems. Furthermore, thanks to its robust construction and higher flow capacity, you can easily utilise this valve in broader commercial and industrial applications.
Therefore, this 28mm motorised valve works perfectly for standard zoning in larger radiator or underfloor heating networks. Additionally, it easily handles demanding applications, as special models are available for the safe distribution of chilled water.
The valve features a durable spring-return motor mechanism designed for consistent and efficient operation. Moreover, the system includes a manual lever (incorporated in models like the SV60222) for straightforward maintenance. As a result, this solid build makes it a highly practical, safe, and reliable choice for long-term plumbing and heating installations.
Key Features & Benefits:
Versatile Installation: The valve design allows it to be plumbed in at any angle. Consequently, you achieve flexible installation in tight spaces, provided the valve head is not mounted below the horizontal level of the pipework to prevent potential safety hazards from leaks.
Spring Return Operation: The system includes a nominal timing mechanism that powers on in 12 seconds and closes via spring return in just 6 seconds. For example, if the system requires a quick response, this mechanism effectively minimises delays in water flow control.
Manual Override Lever: The actuator features a manual lever normally set to the ‘AUTO’ position. Importantly, it can be easily moved to the ‘MAN OPEN’ position for draining and filling. Therefore, it guarantees fast and hassle-free system maintenance when required.
Broad System Compatibility: The valve operates safely within a flow temperature range of 5°C to 88°C and withstands static pressures up to 8.6 bar max. In particular, this robust tolerance makes it perfectly suited for modern plumbing networks and continuous use, provided the motor is not left continuously in the fully open position.
Technical Specifications:
Model: ZL-2129
Product Type: 2-Way Motorised Zone Valve
Connection Size: 28mm
Flow Capacity (K.V.): 6.9
Power Supply: 230 Volts AC 50Hz
Power Consumption: 6W
Switch Rating & Type: 2.2A / SPST
Timings (Nominal): On: 12 seconds (under power) / Off: 6 seconds (under spring return)
Flow Temperature: 5°C to 88°C max
Ambient Temperature: 50°C max
Static Pressure: 8.6 bar max
Flow Direction: As per the arrow on the valve body
