2- and 3-port valves with flanged connections, PN 16

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1 4 404 VVF43.. VVF43..K VXF43.. ACVATIX 2- and 3-port valves with flanged connections, PN 16 From the large-stroke valve line VVF43.. VXF43.. High-performance valves for medium temperatures from C Valve body of nodular cast iron EN-GJS LT DN k vs m 3 /h Flange type 21, flange design B VVF43..K with pressure compensation to handle high differential pressure Equipable with electro-hydraulic actuators SKC.. Use In boiler, district heating and refrigeration plants, cooling towers, heating groups, and in air handling units as control or shutoff valves. For use in closed or open hydraulic circuits (observe cavitation). CE1N4404en Building Technologies

2 Type summary Fluids Preferred flow direction with fluids for low noise operation and high kvsvalues with all actuator types Steam 2) Exclusive flow direction for steam. Also useful for maximum close-off pressure p S and maximum differential pressure in operation ( p max) with fluids. Use with electro-hydraulic actuators only Steam 2) Exclusive flow direction for steam. Valves Actuators SKC.. PN 16 Stroke 40 mm Positioning force 2800 N Data sheet N4566 DN k vs S V p s p max Stock number [m 3 /h] [kpa] VVF S55206-V VVF ) S55206-V VVF S55206-V VVF ) S55206-V VVF S55206-V VVF ) S55206-V VVF ) S55206-V VVF ) S55206-V > VVF ) S55206-V VVF S55206-V VVF K 1) S55206-V VVF K 1) S55206-V VVF K 1) S55206-V VVF K 1) S55206-V VVF K S55206-V VVF S55206-V VVF S55206-V VVF S55206-V VVF S55206-V VVF S55206-V VVF ) S55206-V ) 500 VVF S55206-V VVF ) S55206-V ) > VVF ) S55206-V ) 200 VVF ) S55206-V ) VVF K S55206-V VVF K S55206-V VVF K 3) S55206-V ) 800 VVF K 3) S55206-V ) VVF K 3) S55206-V ) pmax DN k vs S V [kpa] Stock number [m 3 /h] Fluids VXF ) S55206-V VXF ) S55206-V VXF ) S55206-V > VXF ) S55206-V VXF S55206-V ) 2) 3) Valve characteristic for k vs value 63 m 3 /h from 90% stroke, k vs value 100, 160, 200 and 250 m 3 /h from 80% stroke and k vs value 315 m 3 /h from 70% stroke is optimized for maximum volumetric flow Operate with opposite flow direction with steam Reduced k vs value DN = Nominal size k vs = Flow nominal value of cold water ( C) through the fully opened valve (H 100) at a differential pressure of 100 kpa (1 bar) S v = Rangeability p s = Maximum permissible differential pressure at which the motorized valve still closes securely against the pressure p max = Maximum permissible differential pressure across the valve s throughport for the entire positioning range of the motorized valve Note When using a stem heating element with a medium temperature of below 5 C, the stem sealing gland must be replaced. In this case, the stem sealing gland must be ordered separately (Stock number: ). 2 / 12

3 Ordering Example Product number Stock number Description VXF S55206-V115 3-port valve with flange, PN 16 SKC32.60 SKC32.60 Electro-hydraulic actuator Delivery Note Spare parts, Rev.-Nr. Valves, actuators and accessories are packed and delivered as separate items. Counter-flanges, bolts and gaskets must be provided on site. See page 12 Equipment combinations Product number Description Stroke Positioning force 40 mm 2800 N Operating voltage Positioning signal Spring return time SKC32.60 SKC AC 230 V 3-position SKC32.61 SKC s SKC60 SKC62 SKC62U SKC62UA SKC82.60 SKC82.60U SKC82.61 SKC82.61U SKC60 SKC62 SKC62U SKC62UA SKC82.60 SKC82.60U SKC82.61 SKC82.61U 1) 2) 3) AC 24 V 0 10 V 4 20 ma position 20 s 18 s - - Positioning time LED 120 s - Opening: 120 s Closing: 20 s 120 s - Auxiliary switch, potentiometer Position feedback, forced control, selection of valve characteristic Plus sequence control, stroke limitation, and selection of acting direction Manual adjuster Turn, Position is maintained Auxiliary functions 1) 2) 3) 1) Product documentation Technical and mechanical design Mounting Instructions M Basic documentation P4030 Contains background information and technical basic knowledge of valves The illustrations below show the basic design of the valves. Constructional features, such as the shape of plugs, may differ. 2-port valves Fluids Steam ( Fluids possible ) Closing against the pressure Closing with the pressure For use with all actuators Use with electro-hydraulic actuators only 3 / 12

4 2-port valves pressure compensated The VVF43..K valves use a pressure-compensated plug. This enables the same type of actuators to be used for the control of volumetric flow at higher differential pressures. Fluids Closing against the pressure Steam Closing with the pressure For use with all actuators Use with electro-hydraulic actuators only Note 3-port valves 2-port valves do not become 3-port valves by removing the blank flange! Fluids Mixing valve (preferred use) Diverting valve Accessories Product number Stock number Description Note ASZ6.5 ASZ6.6 ASZ6.5 S55845-Z108 Stem heating element Required for medium temperatures < 0 C Stem sealing gland When using valves of the V..F43.. lines with a stem heating element and a medium temperature below -5 C, the stem sealing gland must be replaced. With the gland the valve can be used with water, water with antifreeze and brines between -20 C and C. 4 / 12

5 Adapter type Stock number Bolts included Description VXF41.. ALF41B65 ALF41B80 S55845-Z114 S55845-Z115 4x M16x90mm 8x M16x110mm Adapter for replacing 3-port valves VXF41.. by VXF43.. Due to different dimensions of the DN 65 DN 80 ALF41B100 S55845-Z116 ALF41B125 S55845-Z117 ALF41B150 S55845-Z118 8x M16x110mm 8x M16x110mm 8x M20x110mm bypass flange Every valve to be replaced requires an adapter Adapter is supplied with the required number and size of bolts and nuts as well as two suitable flat sealings DN 100 DN 125 DN 150 Replace 3-port valves VXF41.., DN by 3-port valves VXF53.. (data sheet N4405). DN 65 DN 150 Sizing Flow chart ,01 0,02 0,03 0,04 0,05 0,06 0,08 0,1 0,2 0,3 0,4 0,5 0,6 0,8 1 1, k VS ,5 2 1,5 1 0,8 0,6 p max values apply for the mixing function. p max values for the diverting function see table Type summary, page 2 5 / 12

6 Valve characteristics 2-port valves Flow rate kv / kvs 0 30%: Linear %: Equal percentage n gl = 3 to VDI / VDE 2173 For high k vs values the valve characteristic is optimized for maximum volumetric flow k V100. Stroke H / H 100 For product lines: VVF VVF K VVF VVF K Flow rate kv / kvs 0 100%: Linear Stroke H / H port valves Flow rate kv / kvs Stroke H / H 100 Throughport A-AB %: Linear %: Equal percentage n gl = 3 to VDI / VDE 2173 For high k vs values the valve characteristic is optimized for maximum volumetric flow k V100. Bypass B-AB %: Linear Port AB = constant flow Port A = variable flow Port B = bypass (variable flow) Mixing: Diverting: Flow from port A and port B to port AB Flow from port AB to port A and port B For product lines: VXF VXF Flow rate kv / kvs Throughport A-AB %: Linear Bypass B-AB %: Linear Stroke H / H / 12

7 Operating pressure and medium temperature Fluids with V..F43.. Notes Operating pressure [bar] Operating pressure and operating temperatures according to ISO 7005, EN 1092 and EN All relevant local directives must be observed Medium temperature [ C] Curve for saturated steam; steam forms below this line Operating pressure according to EN 1092, valid for 2-port valves with blank flange Saturated steam Superheated steam with VVF43.. Abs. operating pressure [bar] A B Medium temperature [ C] Wet steam To be avoided Saturated steam Permissible operating range Superheated steam Subcritical pressure ratio Supercritical pressure ratio Medium compatibility and temperature ranges Medium Valve Note Temperature range T min T max [ C] [ C] Cold water Low-temperature hot water High-temperature hot water 1) Water with antifreeze V..F43: With a medium temperature of below ) 5 C, the stem sealing gland must be replaced ) by the gland Cooling water 2) Brines V..F43: With a medium temperature of below ) 5 C, the stem sealing gland must be replaced ) by the gland Saturated steam 3) Superheated steam 3) Heat transfer oils On the basis of mineral oil Super-clean water (demineralized and deionized water) VVF43.. VVF43..K VXF / 12

8 1) Differentiation due to saturated steam curve 2) Open circuits 3) Operate with inverted flow direction with steam 4) VVF43..K can t be used with media below -5 C due to the compensation sealing material Fields of use Fields of use valves VVF43.. VXF43.. Generation Boiler plants District heating plants - Refrigeration plants Cooling towers 1) Distribution Heating groups Air handling units 1) Open circuits Engineering notes Mounting location Dirt trap Cavitation Preferably mount the valves at the return, as the temperature is lower there and the strain on the stem sealing gland is lower. Operate valves of the product lines VVF43.. with inverted flow direction for steam. Mount a dirt filter or dirt trap before the valve to ensure proper functioning, and a long service life of the valve. Remove dirt, welding beads, etc. from the valves and pipes. Cavitation can be avoided by limiting the pressure differential across the valve depending on the medium temperature and the prepressure. Mounting notes Mounting position Indoors Outdoors Commissioning notes Mounting positions apply to both 2- and 3-port valves. The valve may be put into operation only if actuator and valve are correctly assembled. Note Function check Ensure that actuator stem and valve stem are rigidly connected in all positions. Valve Throughport A AB Bypass B AB Valve stem extends Closes Opens Valve stem retracts Opens Closes 8 / 12

9 Maintenance notes The valves are maintenance-free. When servicing valves or actuators: Deactivate the pump and turn off the power supply Close the shutoff valves Fully reduce the pressure in the piping system and allow pipes to completely cool down Disposal If necessary, disconnect the electrical wires. Due to the different types of material used, the valve must be disassembled prior to disposal. Special handling of certain valve components may be required by law or may be sensible from an ecological point of view. Local and currently valid legislation must be observed. Warranty Application-related technical data are guaranteed only when the valves are used in connection with the Siemens actuators listed under Equipment combinations, page 3. When used with actuators of other manufacture, any warranty by Siemens becomes void. Technical Data Functional data PN class PN 16 Connection Operating pressure Flange See Section "Operating pressure and medium temperatures", page 7 Valve characteristics 1) See section "Valve characteristics", page 6 Leakage rate Throughport % of k vs value (Class IV) Bypass 0.5 2% of k vs value Permissible media See table " Medium compatibility and temperature ranges", page 7 Medium temperature C 2) Rangeability >100 Nominal stroke VVF43..K: C 40 mm Materials Valve body EN-GJS LT Blank flange Valve stem, seat, plug Stem sealing gland Compensation sealing Adapter ALF41B.. P265GH Stainless steel Stainless steel FEPM (silicone-free) Stainless steel FEPM (silicone-free) Steel S235JRG2 9 / 12

10 Standards Pressure Equipment Directive PED 97/23/EC Pressure-carrying accessories According to article 1, section Fluid group 2 PN 16 Category I, with CE certification DN Category II, with CE certification, notified body identification number 0036 DN 150 PN class ISO 7268 Operating pressure ISO 7005, DIN EN Flanges ISO 7005 Length of flanged valves DIN EN 558-1, line 1 Valve characteristic VDI 2173 Leakage rate Water treatment VDI 2035 Throughport, bypass according to EN / EN 1349 Environmental conditions Storage: IEC Class 1K3 Temperature C Rel. humidity 5 95% r.h. Transport: IEC Class 2K3, 2M2 Temperature C Rel. humidity < 95% r.h. Operation: IEC Class 3K5, 3Z11 Environmental compatibility Temperature C Rel. humidity 5 95% r.h. ISO (environment) ISO 9001 (quality) SN (environmentally compatible products) RL 2002/95/EG (RoHS) Dimensions / Weight Dimensions See Dimensions, page 11 Weight See Dimensions, page 11 1) 2) For certain valve lines and high k vs values, the valve characteristic is optimized for maximum volumetric flow k V100 For medium temperatures < -5 C, the stem sealing gland must be replaced. The sealing gland must be ordered separately (Stock number: ). 10 / 12

11 Dimensions VVF43.. Product number DN B Ø D Ø D1 Ø D2 L1 L2 L3 Ø K H1 H2 H SKC.. VVF (4x) (8x) (8x) (8x) (8x) VVF43..K (4x) (8x) (8x) (8x) (8x) VXF43.. Product number DN B Ø D Ø D1 Ø D2 L1 L2 L3 Ø K H1 H2 H SKC.. VXF (4x) (8x) (8x) (8x) (8x) / 12

12 Spare parts Stem sealing gland Product number DN Stock number Comments VVF43.. VXF43.. DN When operating with medium temperatures below -5 C. With the gland the valve can be used with water, water with antifreeze and brines between -20 C and C. Revision numbers Product number Valid from rev. no. Product number Valid from rev. no. VVF A VXF A VVF A VXF A VVF A VXF A VVF A VXF A VVF A VXF A VVF A VVF A VVF A VVF A VVF A VVF K..A VVF K..A VVF K..A VVF K..A VVF K..A 12 / Siemens Switzerland Ltd. Subject to change

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