Seated valves (PN 16) VF 2 2-way valve, flange VF 3 3-way valve, flange
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1 Seated valves (PN 16) VF 2 2-way valve, flange VF 3 3-way valve, flange Description VF 2 VF 3 VF 2 and VF 3 valves provide a quality, cost effective solution for most water and chilled applications. The valves are designed to be combined with following actuators: -50 with AMV(E) 335, AMV(E) 35 or AMV(E) 3 SU actuators -0 with AMV(E) 335 or AMV(E) 35 actuators with AMV(E) 55, AMV(E) 56, AMV 23 or AMV 523 actuators 1, with AMV(E) 55, AMV(E) 56, AMV(E) 5 or AMV(E) 6 actuators. Combinations with other actuators could be seen under Accessories. Ordering Example: 2-way valve,, kvs 1,6, PN 16, tmax 130 C, flange connection - 1 VF 2 valve Code No.: 0Z VD.LS.D6.02 Danfoss 0/12 Main data: - kvs 0,63-3 m3/h PN 16 Temperature: - Circulation water/glycolic water up to 50 %: 2 ( 10*) 130 C ( -) 2 ( 10*) 0 C ( 1, ) * At temperatures from -10 C up to +2 C use stem heater Flange PN 16 connections Compliance with Pressure Equipment Directive 97/23/EC 3-way valve VF 3 2-way valve VF 2 kvs (m3/h) 0,63 1,0 1,6 2,5,0 6, Features: Bubble tight design Snap mechanical connection together with AMV(E) 335, AMV(E) 35 Dedicated 2-port valve Suitable for diverting applications (3-port) tmax. (oc) Code No. 0Z0271 0Z0272 0Z0273 0Z027 0Z0275 0Z0276 0Z0277 0Z027 0Z0279 0Z0 0Z021 0Z022 0B35 0B3230 0B kvs (m3/h) 0,63 1,0 1,6 2,5,0 6, tmax. (oc) Code No. 0Z01 0Z02 0Z03 0Z0 0Z05 0Z06 0Z07 0Z0 0Z09 0Z0260 0Z0261 0Z0262 0B1 0B31 0B3 1
2 Ordering (continued) Accessories - Adapter Actuators AMV(E), 35, 323, 23, 523 AMV(E) 55, 56, 323, 23, 523 max. p (bar),0 2,5 Code No. 0Z0311 0Z0312 Accessories - Stem heater (for new valve generation -0 and standard valves -) , 1, Actuators AMV(E) 335, 35 AMV(E) 3 SU AMV(E) /35 AMV(E) 55, 56 AMV(E) 55, 56 AMV 23, 523 AMV(E) 55, 56 AMV(E) 5, 6 Power supply Code No. Stem Heater 0Z03 2 V 0Z70 / 0Z7022 0Z7021 Code No. Adapter / enclosed 0Z0311 0Z0312 / / / / Service kits Type 32 0,50,0 1, Stuffing box Code No. 0Z0321 0Z0322 0Z0323 0Z032 0Z03 0Z0327 0B1360 0B0007 Technical data Nominal diameter kvs value Stroke Control range Control characteristic Cavitation factor z m3/h mm 0,63 1,0 30:1 Leakage Nominal pressure Max. closing pressure (mixing) Max. closing pressure (diverting) Medium Medium ph Medium temperature Connections Materials PN 1,6 2, :1 6,3, :1 LOG: port A-AB; LIN: port B-AB 0, A - AB bubble tight design B - AB 1,0 % of kvs ,0 1) 1,5 2) 2,5 1 0,2 3) 0,5 2) 1,5 ) Valve stem 2 ( 10 5) ) 0 Ductile iron EN-GJS-00-1-LT (GGG 0.3) Grey cast iron EN-GJL-0 (GG-) Valve body 0,5 3) 1,0 2) 3,0 ) Not applicable Circulation water/glycolic water up to 50 % Min. 7, Max ( 10 5) ) 130 Flange PN 16 acc. to EN C 3 0,05 % of kvs bar o 1 2 Stainless steel Valve cone Red bronze CuSn5Zn5Pb5 (Rg 5) Brass Stuffing box sealing EPDM GGG 0 PFTE for actuators AMV(E) 56, AMV 23, AMV 523 for actuators AMV(E) 55 3) for actuators AMV(E) 56 ) for actuators AMV(E) 5, AMV(E) 6 5) At temperatures from 10 up to +2 C use stem heater 1) 2) 2 VD.LS.D6.02 Danfoss 0/12
3 Pressure temperature diagram PN 16 working area - EN-GJL-0 (GG-) PN 16 working area 1, EN-GJS-00-1-LT (GGG 0.3) Maximum allowed operating pressure as a function of medium temperature (according to EN ) Valve characteristics Valve characteristics log (2-way) VD.LS.D6.02 Danfoss 0/12 Valve characteristics log/lin (3-way) 3
4 Installation Valve mounting Before valve mounting the pipes have to be cleaned and free from abrasion. Valve must be mounted according to flow direction as indicated on valve body. Mechanical loads of the valve body caused by the pipes are not allowed. Valve should be free of vibrations as well. Installation of the valve with the actuator is allowed in horizontal position or upwards. Installation downwards is not allowed. A AB A AB B B Mixing Diverting Fig. 1: Mixing or diverting connection Fig. 3: Mixing valve used in diverting application Fig. 2: Mixing valve used in mixing application Fig. : Diverting valve used in diverting application Mixing or diverting connection 3-way valve can be used either as mixing or diverting valve (fig.1). 3-way valve can be also installed as diverting valve in diverting application (fig.) meaning that AB port is inlet and A and B ports are outlets. If 3-way valve is installed as mixing valve meaning that A and B ports are inlet ports, and AB port is outlet port it can be installed in mixing (fig.2) or diverting application (fig.3). Note: Only valves -50 are suitable for diverting installation. Maximal closing pressure for mixing and diverting installation are not the same. Please refer to values stated in Technical data section. Disposal The valve must be dismantled and the elements sorted into various material groups before disposal. VD.LS.D6.02 Danfoss 0/12
5 Sizing Δpmax Flow Rate (liquid with specific a gravity of 1) l/sec m3/h FLOW Pressure drop kpa ( kpa = 1bar = ~ 10 m H2O) Example Design data: Flow rate: 6 m3/h System pressure drop: 55 kpa Locate the horizontal line representing a flow rate of 6 m3/h (line A-A). The valve authority is given by the equation: p1 Valve authority, a = p1+ p2 Where: Δp1 = pressure drop across the fully open valve Δp2 = pressure drop across the rest of the circuit with a full open valve The ideal valve would give a pressure drop equal to the system pressure drop (i.e. an authority of 0.5): if: Δp1 = Δp2 Δp1 a= = 0,5 2 Δp1 The intersection of line A A with the diagonal lines gives the pressure drops stated by real, rather than ideal, valves. In this case, a valve with kvs 6,3 would give a pressure drop of 90,7 kpa (point C): hence valve authority = 90.7 = The second largest valve, with kvs 10, would give a pressure drop of 36 kpa (point D): hence valve authority = 36 = Generally, for a 3 port application, the smaller valve would be selected (resulting in a valve authority higher than 0.5 and therefore improved control). However, this will increase the total pressure and should be checked by the system designer for compatibility with available pump heads, etc. The ideal authority is 0,5 with a preferred range of between 0, and 0,7. In this example an authority of 0,5 would be given by a valve having a pressure drop of 55 kpa at that flow rate (point B). The intersection of line A A with a vertical line drawn from B lies between two diagonal lines; this means that no ideally-sized valve is available. VD.LS.D6.02 Danfoss 0/12 5
6 Design (Design variations are possible) 6 VF Valve body Valve insert Valve cone Valve stem Moving valve seat (pressure relieved) 6. Stuffing box VF Valve body Valve insert Valve cone Valve stem Valve seat Pressure relieve chamber Stuffing box 7 VD.LS.D6.02 Danfoss 0/12
7 Dimensions VF 2 ( -) VF 2 ( 0) AMV(E) 335, 35 + VF 2 ( -0) AMV(E) 3 SU + VF 2 ( -50) VF 3 ( -) VF 3 ( 0) AMV(E) 335, 35 + VF 3 ( -0) AMV(E) 3 SU + VF 3 ( -50) Type VF 2 VF L H H1 H2 k d mm ,5 52,5 57, ,5 92, n Weight (kg) 1,93 2, 3,23,97 6,59,53,92 1,13 2,61 3,55,5 6,90 9,05 12,79,1 23,73 Note: If stem heater is used dimension H is increased for 31 mm, dimension H2 is increased for 5 mm. VD.LS.D6.02 Danfoss 0/12 7
8 Dimensions (continued) VF 2 ( ) VF 3 ( ) AMV(E) 55, 56 + VF 2, VF 3 ( ) Type VF 2 VF 3 L AMV 23, VF 2, VF 3 ( ) H H1 H2 k d mm n Weight (kg) 39,0 3,0 Note: If stem heater is used dimension H remains the same. VD.LS.D6.02 Danfoss 0/12
9 Dimensions (continued) VF 2 ( 1, ) VF 3 ( 1, ) AMV(E) 55, 56 + VF 2, VF 3 ( 1, ) Type VF 2 VF L H AMV(E) 5, 6 + VF 2, VF 3 ( 1, ) H1 H2 k d mm n Weight (kg) 5,0 79,0,3 92,0 Note: If stem heater is used dimensions H1 and H2 remain the same. VD.LS.D6.02 Danfoss 0/12 9
10 10 VD.LS.D6.02 Danfoss 0/12
11 VD.LS.D6.02 Danfoss 0/12 11
12 12 VD.LS.D6.02 Produced by Danfoss A/S 0/12
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