AVT Valve : Mold Temperature Control Units

NEW AVT™ MODULATING VALVE IMPROVES PERFORMANCE
OF SENTRA TEMPERATURE CONTROLLERS

Sentra temperature controllers manufactured after April 1, 2002, will use a new 3rd generation AVT™ (Advanced Valve Technology) modulating valve to precisely meter in cooling water while eliminating water hammer caused by on/off solenoid style cooling valves used on competitive brands of temperature controllers.

The improvements made in the 3rd generation AVT™ valve components offer the benefits of better process temperature control, reduced maintenance, greater reliability and longer life. These improvements are the result of constant factory and field testing, as Advantage seeks ways to improve the performance of the Sentra. Better temperature control has a positive affect on user processing cycle times and part quality.

The AVT™ valve is Advantage's patented modulating valve technology for temperature controllers. Introduced in 1991, there are more than 17,000 AVT™ valves in service through industry today.

New features include:

• Stainless steel valve body
• Improved drive stem
• O-ring stem seal
• Rigid mounting flange
• One piece coupling
• High temperature ABS drip cover.

STAINLESS STEEL VALVE BODY. The stainless steel body gives longer service as it is less prone to contamination damage. The valve body, supplied by a national valve manufacturer, is designed for modulating use.

NEW DRIVE STEM. The new AVT™ valve uses a square drive stem. This provides a more precise transfer of motor movements through the new one-piece coupling. The result is better temperature control of the process fluid.

O-RING. The new square drive stem uses an O-ring stem seal. This replaceable O-ring gives the valve longer service life (testing shows up to 4 times longer than the previous design) and reduces maintenance.

RIGID FLANGE MOUNT. The new AVT™ valve has a rigid flange mount for a more secure attachment to the cooling cylinder. This eliminates alignment issues that can result in uneven stem wear and poor valve performance.

ONE-PIECE COUPLING. The new square drive stem uses a one-piece coupling. The coupling attaches the valve body to the stepper motor/gearbox assembly. The one-piece coupling is a more rigid assembly allowing the motor to have greater control over the valve. The result is better temperature control of the process fluid.

HIGH TEMPERATURE ABS DRIP COVER. The new AVT™ valve componentry is protected by an ABS drip cover.

The new AVT™ valve is standard on Sentra temperature controllers that features the LE Series and HE Series microprocessor instruments.

If you have any questions about the application or operation of the new AVT™ valve, call the Advantage Sales or Service Departments at 317-887-0729.