DESCRIPTION
Sontay's new range of terminal unit valves, are designed and provide a high quality long lasting solution for control of hot or chilled water applications with up to a 50% glycol mix. They are suitable for fan coil units, small re-heaters and re-coolers in temperature control systems. They have replaceable interchangeable cartridges that can be changed without removing the valve from the line. They are used in combination with the VT-24, VT-SR (2, 3-port valves only) and VT-TA range of actuators.

FEATURES
• Suitable for water or glycolic water • Better than 50:1 turndown ratio • Soft sealing on plug gives complete shut-off • 5 year Warranty

DESCRIPTION
These spring return actuators are designed for on/off control and are used with the 2, 3-port VT-xP terminal unit valves. The VT-SR-xx-1 normally open series and the VT-SR-xx-2 normally closed series are 2-position, 2-wire fail safe on power disruption actuators.

FEATURES
• 24Vac and 230Vac supply options • Normally closed and normally open versions • No tools required for mounting • Position indicator • Maintenance free • 3 year Warranty

DESCRIPTION
Used with the VT-xP range of valves, they are tried and tested totally silent wax expansion principle actuators. The valve opens in direct proportion to the amount of wax melted, driving the stem through its travel to close (or open) the valve. They provide a very cost effective solution for valve control.

FEATURES
• 24Vac and 230Vac supply options • No tools required for mounting • Position indicator