3-Port Seat Valves with Male Thread, PN 16

Transcription

1 6 3-Port Seat Valves with Male Thread, PN 6 VXG ronze CC9K (Rg5) valve body DN 5DN 0 k vs m 3 /h Flat sealing connections with external thread G to ISO 228/ Sets of ALG 3 screwed fittings with threaded connection available from Siemens Manual adjustment by means of mounted knob Can be equipped with SQS actuators Use In small or medium-sized heating, ventilating and air conditioning plants as a control valve for mixing and diverting functions For closed circuits only Media Cooling water Chilled water Low temperature hot water Water with anti-freeze 20 C CEN6en uilding Technologies HVAC Products

2 Type summary Accessories Order Example: Delivery Equipment combinations Type reference DN k vs S v [m 3 /h] VXG VXG5-0 0 VXG VXG5-5 VXG5-6 6 VXG VXG5- VXG VXG VXG VXG > 50 > 00 DN = Nominal size k vs = Nominal flow rate of cold water (5 30 C) through the fully open valve (H 00 ) by a differential pressure of 00 kpa ( bar) S v = Rangeability k vs / k vr k vr = Smallest k v value, at which the flow characteristic tolerances can still be maintained, by a differential pressure of 00 kpa ( bar) Type reference ALG 3 Description Set of 3 screwed fittings for 3-port valves, consisting of - 3 union nut - 3 discs and - 3 flat seals When ordering please give quantity, product name and type reference 3 valves VXG sets of screwed fittings ALG253 Valves, actuators and accessories are packed and supplied separately Valves Actuators SQS Fitting sets VXG5-025 VXG5-0 VXG5-063 VXG5- VXG5-6 VXG5-25 VXG5- VXG20-63 VXG25-0 p max mixing p max diverting ) Type reference [kpa] 00 [kpa] 00 ALG53 ALG ALG253 VXG ALG323 VXG ALG03 ) If noise is permitted, the same values apply as for mixing p max = Maximum permissible differential pressure across valve s control path, valid for the entire actuating range of the motorized valve 2/6 uilding Technologies 3-Port Seat Valves with Male Thread, PN 6 CEN6en HVAC Products

3 Actuator overview Type reference SQS3500 SQS3503 SQS3550 SQS3553 Operating voltage AC 230 V Positioning signal 3 position Positioning time 50 s 35 s 50 s 35 s Spring return Spring return time no SQS655 yes 8 s DC 0 0 V SQS Ω 35 s SQS652 SQS8500 SQS8503 AC 2 V Data sheet actuators SQS : N573 DC 2 0 V 3 position 50 s 35 s yes 8 s no Technical design / mechanical design Valve cross section A 6Z0 Guided parabolic plug which is attached to the valve stem The seat is fitted in the through-port and attached directly to the valve body in the bypass From DN25, the seat in the through-port is attached directly to the valve body and fitted to the ring in the bypass Sizing Flow diagram V 00 [m³/h] ,8 0,5 0, 0,3 0, 0,08 0,06 0,05 0,0 0,03 0,02 0,0 0,02 2 0,03 0,0 0,05 0,06 DN - k vs ,08 0, , ,5 0 p v00 [bar] 5 -, , , 30 0, 0, p v00 [kpa] 0, p max ,8,2 8, 5,8 2,8 2,2,7,, 0,85 0,3 0,75 0,5 0, 0,08 0,06 0,03 0,02 0,07 0,0 0,0 0,0085 0,006 V 00 [l/s] 36D0 uilding Technologies 3-Port Seat Valves with Male Thread, PN 6 CEN6en HVAC Products /6

4 p max = Maximum permissible differential pressure across the valve s control path, valid for the entire actuating range of the motorised valve pv00 = Differential pressure across the fully open valve and the valve s control path by a volume flow V 00 V & 00 = Volume flow through the fully open valve (H 00 ) 00 kpa = bar 0 mws m 3 /h = 0278 l/s water at 20 C Valve flow characteristic v / kvs Flow k 0,8 0, - A A A - A 0 0 0, 0,8 Stroke H / H 00 6D02 Valve flow characteristic: Through-port: linear as per VDI /VDE273 ypass: linear as per VDI /VDE273 Mixing: Flow from port A and port to port A Diverting: Flow from port A to port A Port A Port Port A and port = variable flow = ypass (variable flow) = constant flow Use the three-port valve primarily as a mixing valve Notes Engineering Mounting Always use a strainer upstream of the valve to increase the valve's functional safety oth valve and actuator can easily be assembled at the mounting location Neither special tools nor adjustments are required The valve is supplied with Mounting Instructions Orientation Z0 Direction of flow When mounting, pay attention to the valve's flow direction symbol: Mixing from A / to A Diverting from A to A / A A A A 6Z03 Commissioning Commission the val ve only if the actuator has been mounted correctly Valve stem retracts: Through-port A A opens, ypass closes Valve stem extends: Through-port A A closes, ypass opens Maintenance Warning VXG valves require no maintenance When doing service work on the valve / actuator: Deactivate the pump and turn off the power supply Close the shuttoff valves Fully reduce the pressure in the piping system, allow pipes to completely cool down If necessary, disconnect the electrical wires /6 uilding Technologies 3-Port Seat Valves with Male Thread, PN 6 CEN6en HVAC Products

5 efore putting the valve into operation again, make certain the actuator is correctly fitted Stem sealing gland The stem sealing gland cannot be exchanged In the case of leakage, the entire valve must be replaced Contact your local office or branch Disposal Warranty Technical data efore disposal the valve must be dismantled and separated into its various constituent materials Legislation may demand special handling of certain components, or it may be sensible from a ecological point of view Current local legislation must be observed The technical data given for these applications is valid only in conjunction with the Siemens actuators as detailed under «Equipment combinations» All terms of the warranty will be invalidated by the use of actuators from other manufacturers Functional data PN class PN 6 to EN 333 Permissible operating pressure 600 kpa (6 bar) to ISO 7268 / EN333 Working pressure to DIN 77 / DIN 358 in the range of 20 C Flow characteristic 0 00 % linear to VDI / VDE 273 (through-port and bypass) Leakage rate % of k vs value to DIN EN 39 (through-port and bypass) Permissible media cooling water, chilled water, low temperature hot water, water with anti-freeze recommendation: water treatment to VDI 2035 Medium temperature 20 C Rangeability S v DN 5: > 50 bzw > 00 (refer to «Type summary») DN 20: >00 Nominal stroke 55 mm Industry standards Pressure Equipment Directive PED 97/23/EC Pressure Accessories as per article, section 2 Fluid group 2 without CE-marking as per article 3, section 3 (sound engineering practice) Materials Valve body bronze CC9K (Rg5) Seat in the through-port stainless steel, bronze Rg5 or brass Seat in the bypass bronze Rg5 or brass Plug stainless steel or brass Stem stainless steel Sealing gland brass gland materials EPDM O rings Dimensions / Weight Refer to «Dimensions» External thread connections G to ISO 228/ Actuator connection G¾ uilding Technologies 3-Port Seat Valves with Male Thread, PN 6 CEN6en HVAC Products /6

6 Dimensions Screwed fittings H H2 L3 H DN = Nominal size H L2 L G = Total actuator height plus minimum distance to the wall or the ceiling for mounting, connection, operation, service, etc H = Dimension from the pipe centre to install the actuator H2 = Pipe centre to upper edge of manual adjustment button, valve in «closed» position (A A) Type DN G L L2 L3 H H2 H Weight reference [mm] [Zoll] [mm] [mm] [mm] [mm] [mm] SQS [kg] VXG5-025 VXG5-0 VXG5-063 VXG5- VXG5-6 VXG5-25 VXG5-6M G > VXG G¼ > VXG G½ 7 8 > VXG G > VXG G2¼ > Rp G On valve side: cylindrical thread to ISO 228/ On pipe side: with cylindrical thread to ISO 7/ 363M02 Type for valve type G Rp reference [Zoll] [Zoll] ALG5 VXG5 G Rp½ ALG20 VXG20 G¼ Rp¾ ALG25 VXG25 G½ Rp ALG32 VXG32 G2 Rp¼ ALG0 VXG0 G2¼ Rp½ 6/ Siemens Switzerland Ltd Subject to alteration uilding Technologies 3-Port Seat Valves with Male Thread, PN 6 CEN6en HVAC Products