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False V2, V4 and V8 Thermostats3.4.01- I Self- acting Temperature ControlsGB- 1 Characteristics • Closing force 200 N, 400 N and 800 N • For heating or cooling valves • Sturdy and reliable • Temperature range 0 to 160 º C (- 30 to 280 º C on request) Applications The temperature controller, which con-sists of a thermostat and a valve, is used for controlling the temperature in central heating systems, district heating systems, industrial plants or industrial processes and in marine systems. It can be used for the control of cold or hot water, steam or oil in heating as well as cooling systems. Function The adjusting cylinder of the thermostat is set at the required temperature for the heating medium in º C. This setting can be fixed, if required. The temperature control is carried out by the thermostatically con-trolled valve reducing or increasing the flow of the heating ( or cooling) medium. The sensor and the capillary tube, which are filled with a liquid, constitute - together with the adjusting cylinder - a closed system. If the temperature of a medium to be heated is above the required level, the temperature of the sensor liquid rises and expands, causing the piston of the thermostat to act upon the valve, reducing the flow of the heating medium. If the temperature of the medium to be heated is below the required level, the temperature of the sensor liquid falls, reducing the volume of the liquid, so that the piston allows the valve to open under its internal spring, thus increasing the flow of the heating medium. The neutral zone of a thermostat is the temperature difference which can occur at the sensor without any movement of the valve spindle. This represents the sensitivity of the control system to tem-perature changes: V2 = 2.5 º C, V4 = 2 º C and V8 = 1.5 º C. Design Thermostat A thermostat consists of a sensor and a capillary tube, filled with liquid, and an adjusting cylinder. The thermostat type designations and technical data are specified in fig. 2. With temperatures above 170 º C, a cooling unit must be fitted between the valve and the thermostat - see fig. 1. The thermostat is self- acting and works on the principle of liquid expansion, it is sturdy in its design, and works with a large closing force. Sensor The following sensor types are available - see fig. 4: 4.1. Rod/ spiral sensor in copper or stainless steel with threaded con-nection according to ISO R7/ 1. 4.2. Spiral sensor ( copper only) with air duct flange. 4.3. Rod/ spiral sensor with steel flange DN 50, PN 40 and DN 50, PN 160. 4.4. Sensor without connection. Usually used with capillary pack box for temperature control in tanks. Capillary Tube The capillary tube is made of copper, stainless steel, or of PVC- coated copper - see fig. 3, but can also be delivered with a flexible iron tube protection. Valve A wide range of valve types for heating as well as cooling systems can be delivered. See the “ Quick Choice” leaflet no. 9.0.00 and datasheets for the valves in question. Subject to changes, without notice. Clorius Controls A/ S Tempovej 27 · DK- 2750 Ballerup · Denmark Tel.: + 45 77 32 31 30 · Fax: + 45 77 32 31 31 E- mail: mail@ cloriuscontrols. com Web: www. cloriuscontrols. com

False V2, V4 and V8 Thermostats Self- acting Temperature ControlsGB- 2 3.4.01- I Choice of Temperature Control The selection of the correct temperature controller is determined by the sizing of the valve and thermostat respectively, which may be chosen by using the “ Quick Choice” leaflet no. 9.0.00. The designation of the thermostat is determined by using 3 elements, e. g. thermostat type V4.05, where V indicates type V thermostat, 4 indicates 0.01 x the force in Newton by which the thermostat can act upon the connected valve, and 05 relates to the travel of the thermostat spindle in mm by a temperature change of 1 º C - see also fig. 2. Fig. 1 indicates whether the tempera-ture of the heating medium necessitates a cooling unit, and how the thermostat is to be mounted in relation to the valve; for a temperature range - 30 º C to 170 º C the thermostat may be installed both above and below the valve. Fig. 2 shows the type number of the thermostat, its closing force in N and its setting range in º C. Fig. 3 shows the choices of length and material for the capillary tubes. Fig. 4 shows the different types of sen-sors. Fig. 5 shows the time coefficients for the sensors. Fig. 6 shows the choices of sensor mate-rials, etc. Fig. 7 shows the dimensions and weights of the sensors etc. Temperature of valve medium: Temperature of sensor: Mounted upwards or downwardsMounted only downwards Without cooling unitWith cooling unit KS- 4 1) With cooling unit KS- 5 1) - 30 º C 170 º C 250 º C 350 º C - 30 º C 140 º C 160 º C 280 º C Glycerin filled Paraffin filled Sensor of stainless steel Sensor of copper 2) 1) See Accessories on page 4. 2) Max. 160 º C - incl. 40 º C over-temperature. For marine installations please see instruction manual. Fig. 1. Temperature Limits Fig. 2. Thermostat Types Technical Data Thermostat Types V2.05V4.03V4.05V4.10V8.09V8.18 Max. closing force N200400400400800800 Setting range for standard thermostats 1) º C 0- 600- 1600- 1200- 600- 1200- 60 30- 9040- 16030- 9040- 16030- 90 60- 12060- 12060- 120 Neutral zone º C2.52221.51.5 For valves with rated travel up to: mm102121212121 Travel ( amplification) in range: mm/ º C - 30 to 160 º C 2) 140 to 280 º C 3) 0.70.330.71.331.22.4 1) Setting ranges from - 30 to 280 º C on request. - Excess temp. safety range: 40 º C 2) Glycerine 3) Paraffin Subject to changes, without notice. Clorius Controls A/ S Tempovej 27 · DK- 2750 Ballerup · Denmark Tel.: + 45 77 32 31 30 · Fax: + 45 77 32 31 31 E- mail: mail@ cloriuscontrols. com Web: www. cloriuscontrols. com