Product overview:
Zrswk self-operated electric temperature control valve, the control valve
, actuators, sensors and components such as capillary. Zrswk self-operated electric temperature control valve is divided into heating and cooling type according to use. Electric temperature control valve (
Applies to the larger diameter and heat conducting oil control), zrswk self-operated electric temperature control valve maximum only ordinary 220V
Power, the media's own energy to be transferred, directly on the steam, hot water, hot oil and gas medium temperature automatic regulation and control, can also be used to prevent overheating or heat exchange places, electric temperature control valve has the advantages of simple structure, convenient operation, the temperature range, fast response time, reliable sealing performance, and can in the operation to adjust, so it is widely used in water supply, petroleum, chemical, textile, food and other departments of the hotel and the hotel.
Scope of application:
Zrswk self-operated electric temperature control valve is mainly suitable for liquids, gases and steam, temperature control in various cooling system. When charged with the medium temperature, control valve is closed (heating); when the controlled medium temperature, control valve opening (cooling). The main features are as follows:
1, high control precision, stable, safe and reliable.
2, temperature of liquid expansion is uniform, proportional control.
3, the temperature set is simple in operation, convenient adjustment.
4, small volume, light weight, convenient installation.
The valve body:
The valve body forms: direct casting ball valve
Nominal diameter: DN15 ~ 200mm
Nominal pressure: pn1.6, 2.5, 4, 6.4Mpa
Flange standards: gb/t9113, jb/t79
Connection: flange, welding (ffrfrtj) (swbw), screw (applicable to 1′.)
Bonnet type: standard type -17 ~ +230℃, +230 ~ +450℃ high temperature;
The gland bolts type: type
Packing: V PTFE, PTFE asbestos packing impregnated asbestos packing, graphite packing, textile
Valve parts: spool form, single-seat valve
Flow characteristics: linear
Working principle.
Electric temperature control valve by the control valve, electric actuator, a temperature sensor and a temperature controller and other components, according to user needs, respectively, heating and cooling type two kinds of structure. The structure and principle of the heating valve: before work main valve in open position, the sensor in the state of nature. Connect the power, the main valve open. Medium on the heat storage tank for heating by the spool from the direction of the arrow into the main body. When the temperature rises to the set value, the corresponding linear sensor signal input integrated actuator, then drive the stem, valve core displacement, close the main valve to stop heating. When the temperature is below the set value, the sensor is linear signal input integrated actuator, driven spool gradually open, make the medium according to the parabolic characteristic flows into the heat storage tank, heating until the set value. It accused the media always at the set temperature range were controlled, so as to achieve the purpose of temperature control. Note: heating, often say cooling type. This valve in the valve structure can be realized as long as the replacement.
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