• June 21, 2019

Danfoss thermostatically operated valve type AVTA, BVTS, WVS, WVTS, FJVA and thermal safety valves are often discribed as fit and forget valves due to their. 2. Danfoss A/S Thermostatically operated cooling water valves. Type AVTA. Contents. Page. Introduction. N Danfoss AVTA 25 – with adsorption charge AVTA thermostatic valves are widely used for temperature control in many different sorts of equipment.

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This depends on the sensor element used. Asco Joucomatic Pneumatic Automation. We may in this case recommend a bigger valve size than in cases when the cooling water temperature is lower. The reason is that the sensor is filled with a mixture of liquid and gas and the end of the capillary tube inside the sensor has to be in the liquid phase. We recommend using NBR diaphragms for oil as cooling medium.

Danfoss AVTA / B Thermostatically Operated Valve With Capillary Sensor – M and M Controls

We recommend the armoured version of capillary tube. Danfoss RT Differential Switch. Type of the charge and whether sensor is in contact with liquid media or air. If the cooling water temperature is close to that point, then more capacity is necessary to cool down the process medium.

You have to use the setting knob on the upper side of the valve. Sirai Solenoid Valves – General Purpose. How to select proper size of the valve depending on cooling water temperature is shown in the data sheet. Namur Based Asco Valves.


Proportional Asco Numatics Valves. No, the bellows element can be replaced without uninstalling the valve from the application. We always recommend installing a filter type FV in the pipe system ahead of valves, especially in cases when the medium could be contaminated or include dirt particles. Go to procurement section Procurement. AVTA are controlled only by an application temperature. Danfoss Solenoid Valves – Marine.

N – Danfoss AVTA 10 Thermostatically Operated Valve – M and M Controls Danfoss – ASCO

Hysteresis depends on the sensor filling. Is it possible to use AVTA for protecting bio-mass boilers? Position 1 is the minimum temperature of the specific range position, and 5 is the highest. First you must know the flow rate of water required, the regulation temperature at the sensor, and the allowable pressure differential across the valve. Very high grade DI water will erode brass fast svta 6 months and low quality DI will give a slow gradual attack on the brass.

Danfoss Nessie Manual Valves. The AVTA can operate at 16 bar and thus be used without problems.

003N3132 AVTA 20 Danfoss Thermostatic valve 0-30°C

Controller closes on rising temperature. Pressure and Temperature Switches. We recommend placing sensor in such a way that the whole of its surface is in contact with the medium. As we do not know exact type and composition of alcohol, we suggest forwarding above information to manufacturer of the mixture, who can assure proper functionality with NBR and EPDM seal materials.


They open on rising application temperature. If the noise comes from the valve body, it may mean that the opening degree of the valve cone is too small. Hydrogen Sulfide H2S is very toxic and has severe effect on copper elements.

This action can be done even with the water in the system. Be social Take part. Heavy Fuel Oil Solenoid Valves.

AVTA, Thermostatic valves with temperature sensitive sensor

vanfoss Yes you can use it, but it will effect the response time and accuracy of the regulation, because normally the valves are used in liquids like water or oil. The production date stamp is placed on the valve body. Thermostatic valves valves are NC – normally closed.

Magnetic Latch Asco Valves. Sirai Solenoid Valves – Micro.

AVTA is designed for cooling systems in industrial applications. NBR diaphragms are available as accessory N, N, N see the technical brochure or our Internet product catalogue.

Thermostatic valves type AVTA work independent from media differential pressure up to 10 bar. Danfoss KP Pressure Switch.