ACVATIX™ 3-port changeover ball valves, PN 40, with external thread VBG60..L For use in heating, ventilation, and air conditioning plants as changeover ball valve. In closed circuits. ● ● ● ● ● ● ● ● A6V11974394de 2020-12-21 Ball valve body made of brass CW602N (DZR) DN 20 kvs 8 m3/h Flat sealing, external threaded connections G..B, as per ISO 228-1 Fitting sets ALG.. with threaded connection Rotational angle 90° Can be combined with electromotorized rotary actuators GQD..9A, GMA..
Features ● ● ● Low cost: Optimized flow rates allow for selecting smaller ball valves. Low torque allows for combining them with small, less expensive rotary actuators. Long life expectancy: Maintenance-free construction due to low friction stem and polished ball made of chrome-plated DZR brass. Easy mounting: The actuators, premounted on the console, can be mounted on the ball valves without tools.
Sizing Flow diagram: 400 300 111 83 200 55,6 96 73 13 9 4214D01 8 Low noise operation 68 49 25 35 22 17 --- Δpmax for VBG60..
Cavitation Cavitation increases wear and tear of the ball and seat and results in unwanted noise. Cavitation can be prevented by not exceeding the differential pressures as per the flow diagram and maintaining the static pressures depicted below.
Operating pressure and operating temperature Liquids: Operating pressure [bar] Operating temperature [° C] Operating pressure and medium temperature as per IS0 7005 (Observe all local and applicable laws). Type summary Type Changeover ball valve Article number DN kvs 20 8 3-port VBG60.
Equipment combinations Type Rotary actuators GSD..9A Δpmax GQD..9A Δps Δpmax GMA..9E Δps GLB..9E Δpmax Δps Δpmax Δps 350 - 350 - [kPa] VBG60.
Applications with auxiliary functions A standard actuator with corresponding functionality can be used if a ball valve application requires a rotary actuator with auxiliary functions (e.g. auxiliary switch or potentiometer). In this case, mounting kit ASK77.. is required in addition to the rotary actuator. Follow the mounting instructions when mounting. Rotary actuator Options Order text: Mounting kit GMA..1E Potentiometer, auxiliary switch ASK77.2 Mounting set KV for GMAxx1.
Engineering We recommend installing the ball valve with spring return since temperatures are lower on heating plants which increases the lifespan of the sealing gland on the stem. Ensure there is no cavitation (see Section Technical design [➙ 2]). A filter must be installed upstream of the ball valve to increase functional safety. Permissible media Using a ball valve together with media based on potassium formate such as Hycool or Temper may result in leakage via stem to the outside.
Flow direction Make sure that the valve is mounted in the proper flow direction. A symbol is applied to the ball valve body: VBG60.. Ball valve Laser marking Position as delivered 90 ° turned (clockwise) VBG60..L 3-port changeover ball valve, L shaped A AB A A AB 4213Z03 B B – AB (AB – B) = 100 % 4213Z04 B A – B (B – A) = 100 % Maintenance The ball valves VBG60.. are maintenance-free. Disposal Do not dispose of the device as part of domestic waste.
Technical data Function data PN class PN 40 as per ISO 7268 Operating pressure As per ISO 7005 within the permissible media temperature according to Section Technical design [➙ 2] Leakage through-port Water proof per EN 60534-4 L/1, improved class 4 Leakage bypass <1% Permissible media Chilled water, cold water, low temperature hot water, hot water, water with frost protection.
4214M02 Dimensions DN = Nominal size H = Total height of actuator plus minimum mounting distance to wall or ceiling, for mounting, connection, operation, maintenance, etc. H1 = Dimension from the pipe to the center to install actuator (upper edge) Type DN B C 20 35 49,5 C1 D G 70 42 G 1¼ mm VBG60.20-8L L1 L2 49 98 Inch Type GQD..9A > 300 > 300 Siemens Smart Infrastructure 30,5 40,5 Weight GMA..9E GLB..9E > 300 > 300 mm VBG60.20-8L H2 mm H GSD..
Fittings For 3-port valves VBG60.. (3 piece set) Valve type G Type Article number Inch ALG203 BPZ:ALG203 G 1¼ ALG203B S55846-Z103 G 1¼B V..G60.20.. - Valve side with cyclindrical threading per ISO 228-1 - Pipe side with cyclindrical threading per ISO 7-1 - ALG..B fittings up to 100 °C medium temperature Insulation shells for 3-port control ball valves (VBG60..
Revision numbers Type Valid from rev. no. Changeover ball valve VBG60..L 3-port VBG60.20-8L Siemens Smart Infrastructure ..
Issued by Siemens Switzerland Ltd Smart Infrastructure Global Headquarters Theilerstrasse 1a CH-6300 Zug Tel. +41 58-724 24 24 www.siemens.com/buildingtechnologies 14 Siemens Smart Infrastructure Dokument-ID A6V11974394de Ausgabe 2020-12-21 © Siemens Schweiz AG, 2020 Delivery and technical specifications subject to change.
