VDN2.. VEN2.. VUN2.. Radiator valves. Building Technologies HVAC Products ACVATIX TM. NF norm, for 2-pipe heating systems

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1 06 EN - Straight valves VDN.. Angle valves VEN.. Reverse angle valves VUN.. ACVATIX TM Radiator valves NF norm, for -pipe heating systems VDN.. VEN.. VUN.. Valve bodies made of brass, mat nickel-plated DN 0, DN and DN 0 (VDN.., VEN..) Integrated preadjustment of k v -values Internally and externally threaded (Rp/R) conforming to ISO 7- Manual knob / protective cover included in the delivery Can be combined with RTN.. thermostatic actuators, SSA.. electromotoric actuators, STA.. and STS6.. thermal actuators SSA9 RF-controlled actuator Use The radiator valves are used in hot water heating plant for individual room or zone temperature control and limitation. They are basically recommended in all rooms, especially where heat gains or different temperature levels occur. CEN06en.0.00 Building Technologies HVAC Products

2 Type summary Type reference straight Type reference angle Type reference reverse angle DN k v -value [m /h) setting range k v -value [m /h) at a P-band of K VDN0 VEN VUN VDN VEN VUN VDN0 VEN Ordering Example: Product number Stock number Designation Quantity VDN0 VDN0 Straight Valves ATN ATN Protection against dismantling Delivery Rev. no. Valves and accessories are packed separately. See overview, page 9. Equipment combinations Product Product number Data sheet Thermostatic actuators RTN.. N Electromotoric actuators SSA.. / SSA6.. / SSA.. N9 RF-controlled electromotoric actuator SSA9 N700 Thermal actuators STA.. / STA7.. N77 Thermal actuators STA7E.. N7 Thermal actuators STS6.. ) N0 ) Quasi-proportional control action, not recommended for parallel operation Mechanical design / technical design The flow rate can be preadjusted with an orifice. Full stroke is ensured irrespective of the preadjustment, which is made with the help of the protective cover. Manual knob / protective cover Sealing gland Valve insert O-ring Reset spring 6 Orifice Features and benefits The valves conform to EN The sealing gland can be replaced while the plant is under pressure (no tools required) /9 Building Technologies Radiator valves CEN06en HVAC Products.0.00

3 Accessories AVN Sealing gland ATN Protection against dismantling ATN Manual knob (RAL906) ATN Manual knob AVN.. Compression fittings Engineering notes The reference numbers for preadjustment are given in the table with the k v -values (see page ) and in the "Valve sizing charts" (see pages 7).. Calculate the volumetric water flow V 00. Q.6 T f 00 V 00 [m /h] Q 00 = heat demand [kw] ΔT = temperature differential [K].6 = constant of water f = correction factor = for water. Define the pressure drop Δp v00 across the fully open valve In most types of plant, a differential pressure Δp v00 of 0.0 to 0. bar is adequate.. Calculation of the nominal flow value k v k v V 00 [m /h] Δp v00 = differential pressure across the valve Δp [bar] v00 Example: Heat demand Q 00 =. kw Temperature differential ΔT = 0 K Water volume.. = 0.0 m /h V = l/h Required differential pressure across the valve Δp v00 = 0. bar Flow 0.0 k v = 0.7 m /h 0. Solution According to the chart (refer to "Valve sizing charts", or table with k v -values), the preadjustment required for a VDN0 / valve is. Tips Noiseless operation is ensured by a pump that provides no more pressure than is needed to transport the required amount of water To keep the valve free from dirt particles, it is recommended to install a strainer Building Technologies Radiator valves CEN06en HVAC Products.0.00 /9

4 k v -values The k v -value gives the volumetric water flow across the valve of bar. V. 00 in m /h at a pressure drop Δp v00 k v -values [m /h] at the different preset positions Control range with actuators SSA.., STA.. and STS6.. Control range of thermostatic actuators RTN.. Reference numbers for preadjustment N N ) VDN0 / VEN VDN / VEN VDN0 / VEN VUN VUN ) kv -value at a P-band of K Setting the k v -values The k v -values can be set on the valve s head in steps + N (fully open) using the protective cover, which can be turned through 0. Observe marking on the valve s outlet side! /9 Building Technologies Radiator valves CEN06en HVAC Products.0.00

5 Valve sizing charts VDN0 VEN0 V 00 /h ] N 0 db(a) * db(a) * Ws ] V T = 0 K Q [ kw ] 00 T = 0 K 0D0 VDN VEN V 00 /h ] Ws ] 0 N 0 db(a) * db(a) * V T = 0 K Q [ kw ] 00 T = 0 K 0D0 Building Technologies Radiator valves CEN06en HVAC Products.0.00 /9

6 VDN0 VEN0 V 00 /h ] Ws ] 0 N 0 db(a) * 0. db(a) * V T = 0 K Q [ kw] 00 T = 0 K 0D0 VUN0 V 00 /h ] N 0 db(a) * db(a) * Ws ] V T = 0 K Q [ kw ] 00 T = 0 K 06D0 6/9 Building Technologies Radiator valves CEN06en HVAC Products.0.00

7 VUN V 00 /h ] Ws ] 0 N 0 db(a) * db(a) * V T = 0 K Q [ kw ] 00 T = 0 K 06D0 *) A-weighting specified in EN 606 Notes Mounting Orientation Mounting Instructions are printed on the package. Mounting orientation depends on selected actuator. The valves are supplied preadjusted to N (fully open) To ensure correct functioning of the thermostatic heads and electronic actuators, observe the available mounting choices and mounting conditions SSA.. SSA9 STA.., STS6.. RTN.. RTN7.., RTN IP 0Z IP IP 6Z0 77Z Z Maintenance Repair Disposal The valves are maintenance-free. In the event of leakage, the valve s sealing gland can be replaced. The valves cannot be repaired; the complete unit must be replaced. The valve must not be disposed of together with domestic waste. Legislation may demand special handling of certain components, or it may be sensible from an ecological point of view. Current local legislation must be observed. Warranty Application-related technical data are only warranted when used in connection with the Siemens controllers and actuators listed under "Equipment combinations", page. Building Technologies Radiator valves CEN06en HVAC Products /9

8 Technical data When using the valves with actuators of other manufacture proper functioning must be ensured by the user. Any warranty by Siemens Switzerland Ltd / HVAC Products becomes void. Functional data PN class PN 0 Suitable media ) cold and low-temperature hot water, water with propylene-glycol, water with ethylene-glycol < 0%; recommendation: water treatment to VDI 0 Medium temperature 0 C Perm. operating pressure 000 kpa (0 bar) Differential pressure p max max. 60 kpa (0.6 bar) Differential pressure 0 kpa ( bar): recommended range Stroke min. mm Standards Environmental compatibility ISO 00 (Environment) ISO 900 (Quality) SN 60 (Environmentally compatible products) RL 00/9/EG (RoHS) Materials Valve body brass, mat nickel-plated Fitting brass, mat nickel-plated Protective cover polypropylene O-ring EPDM, NBR Dimensions / weight Refer to "Dimensions", page 9 Mounting length EN Thread Rp internally threaded R externally threaded G-thread ) Prefer propylene-glycol for environment protection reasons. to ISO 7- to ISO 7- to ISO - /9 Building Technologies Radiator valves CEN06en HVAC Products.0.00

9 E Dimensions VDN.. VEN.. VUN.. E 06M0 E R D Rp D R C C G R G B G B l l l Rp Rp l A C 06M0 06M0 Dimensions [mm] Thread [inch] Weight Prod. no. DN l l l l A B C D E Rp R G [kg] VDN ⅜ ⅜B ⅝ 0.0 VDN ½ ½B ¾ 0.6 VDN ¾ ¾B 0. VEN ⅜ ⅜B ⅝ 0. VEN 6 ½ ½B ¾ 0.60 VEN ¾ ¾B 0.60 VUN ⅜ ⅜B ⅝ 0. VUN ½ ½B ¾ 0.0 Prod. no. DN Compression fittings for copper and soft steel pipes for plastic pipes with aluminum foil VDN0 0 Type Connection valve side Connection pipe side Type Connection valve side Connection pipe side [Inch] pipe Ø [mm] [Inch] pipe Ø [mm] VDN AVN- ½ AVN-A6 ½ 6 x VDN0 0 VEN0 0 VEN AVN- ½ AVN-A6 ½ 6 x VEN0 0 VUN0 0 VUN AVN- ½ AVN-A6 ½ 6 x Revision numbers Product number Valid from rev. no. Product number Valid from rev. no. Product number Valid from rev. no. VDN0.. VEN0.. VUN0.. VDN.. VEN.. VUN.. VDN0.. VEN Siemens Switzerland Ltd Subject to alteration 9/9 Building Technologies Radiator valves CEN06en HVAC Products.0.00