The Caldo H1/CALDO is a motorised electrovalve with a 1" full-bore design for use in central heating systems, hydraulic installations where water hammer must be avoided, and any On-Off solenoid valve application where the valve can also signal its open position. It features LED status indication for visual confirmation of whether the valve is open or closed.

The ball body is forged brass with a diamond-coated ball and PTF (Teflon) sealing seats, plus a double O-Ring on the shaft. Test pressure is 15 Bar; operating pressure is approximately 3–4 Bar. Operating temperature range is -20 to +80°C.

Key Features

• 1" full-bore design minimises flow restriction
• LED indicator for visual open/closed status confirmation
• Forged brass ball body with diamond-coated ball and PTF (Teflon) sealing seats
• Double O-Ring shaft seal for long-term leak-free operation
• On-Off operation with additional ability to signal when open (command output to autonomy panel)
• 5-wire connection: neutral, phase, thermostat command, autonomy panel command, earth

Product Benefits

• LED indicator allows quick visual status check without opening the panel or using a meter
• Full-bore ball design eliminates turbulence and hydraulic shock, protecting pipework
• PTF Teflon seats and double O-Ring shaft provide long service life with minimal maintenance
• Command output wire allows direct integration with Viomtron-type autonomy panels
• Forged brass construction resists corrosion in central heating water circuits

Technical Specifications

• Model: H1/CALDO
• Connection Size: 1"
• Body Material: Forged brass, diamond-coated ball
• Sealing: PTF (Teflon) seats + double O-Ring on shaft
• Operating Voltage: 230 VAC
• Motor Power: 3.5 W
• Relay Contact: 12 A
• Protection: IPX40
• Torque: 3.2 NM
• Operating Time: 105 sec / 90°
• Test Pressure: 15 Bar
• Operating Pressure: approx. 3–4 Bar
• Operating Temperature: -20 to +80°C
• Colour: Grey
• Standards: EN60730-1 & EN60730-2-8

Why You'll Love It

• Five clearly numbered connection wires simplify installation and reduce wiring errors
• IPX40 protection suits the damp environments typical of boiler rooms and plant rooms
• Forged brass and Teflon construction designed for long life in heating system water
• Package includes 1× Caldo 1" Full-Bore Electrovalve H1/CALDO