Tritherm 2 Port Motorised Valve 22mm

Tritherm 2-Port Motorised Zone Valve The Tritherm 2-Port Motorised Zone Valve is designed to control the flow of water in iron and copper pipe systems. While specifically engineered for small bore domestic central heating systems, its robust design also makes it suitable for commercial and industrial applications. Key Product Features Feature Detail Benefit Manual Control Integrated Manual Lever Allows the valve to be locked in ‘MAN OPEN’ position for easy system draining and filling3.   Efficiency 6W Power Consumption Low energy usage during operation4.   Fail-Safe Spring Return Mechanism Automatically closes the valve (within 6 seconds) when power is cut5.   Switching SPST Auxiliary Switch Integrated 2.2A switch to control pump or boiler operation6.   Durability 8.6 Bar Static Pressure Suitable for high-pressure systems7.   Installation Flexible Mounting Can be plumbed at any angle (except upside down)8. Application and Installation This valve is an essential component for S-Plan heating systems and underfloor heating manifolds, allowing for precise zoning of heating and hot water. Orientation: The valve may be plumbed at any angle, provided the valve head is not below the horizontal level of the pipework, preventing safety hazards in case of leaks. Safety: The manual lever is designed for filling and draining purposes only and should normally be left in the ‘AUTO’ position. Fitting: Includes standard compression fittings. Always use a spanner (32mm or 141​′′AF) on the valve body ports while tightening nuts—never grip the valve head. Technical Specifications Detail Specification Power Supply 230 Volts AC, 50Hz 12   Switch Rating 2.2A 13   Switch Type SPST (Single Pole Single Throw) 14   Power Consumption 6W 15   Opening Time 12 seconds (under power) 16   Closing Time 6 seconds (under spring return) 17   Max Ambient Temp $50^{\circ}\text{C}$ 18   Flow Temp Range $5^{\circ}\text{C}$ to $88^{\circ}\text{C}$ 19   Max Static Pressure 8.6 bar 20 Flow Characteristics The valve is designed for efficient flow with minimal pressure drop. The table below approximates the flow rates based on the provided performance curves for different valve sizes (Kv values). Flow Rate vs. Pressure Drop Pressure Drop (mwc) Flow Rate (l/min) – Kv 3.0 Flow Rate (l/min) – Kv 6.9 Flow Rate (l/min) – Kv 8.6 1.0 ~12 ~35 ~45 2.0 ~18 ~50 ~65 3.0 ~25 ~60 ~80 4.0 ~30 ~70 ~90 5.0 ~35 ~80 ~100 (Data derived from Flow Characteristics chart) Dimensions & Wiring Dimensions 22mm Valve: Length (D) = 112mm. 28mm Valve: Length (D) = 127mm. Clearance: Requires vertical clearance for cover removal (Dimension B: 98mm). Wiring Connections Brown: Live Blue: Neutral (Motor) Orange: Auxiliary Switch (Live out to Boiler/Pump) Grey: Auxiliary Switch (Live in) Green/Yellow: Earth Like this:Like Loading…