Fan-coil valves Series 2131-3131-4131
Transkript
Fan-coil valves Series 2131-3131-4131
69-0015-UK 23-10-2008 11:05 Pagina 1 Fan-coil valves Series 2131 - 3131 - 4131 Main features Complete range in the following versions : • 2-way - DN: 1/2”, 3/4”, 1” • 3-way - DN: 1/2”, 3/4”, 1” • 3-way with 4 ports - DN: 1/2”, 3/4” - The 3-way version and the 3-way versions with 4 ports can be used as diverting or mixing valves of compact size and reduced weights. The valves are motorized with actuators series 22C or actuators with stroke 2.5 mm with ring nut M30x1.5. 69-0015-UK 23-10-2008 11:05 Pagina 2 FAN-COIL VALVES Description 2 Fan-coil control valves series 2131, 3131, 4131 are used for controlling the flow of hot or cold water in heating and air conditioning systems. They are operated by electric actuators with max. stroke of 2.5 mm. such as electrothermic actuator series 22C. As standard, the valves are available in the configuration with male thread in the following versions : • 2-way series 2131 • 3-way series 3131 • 3-way with 4 ports series 4131 with built-in by-pass. Operation of the valve plug is by electrothermic actuator series 22C, available in the following versions: • NO (normally open) 2-wire(Standard) or 4-wire (with auxiliary microswitch contact) • NC (normally closed) 2-wire (Standard) or 4-wire (with auxiliary microswitch contact) All actuators of the 22C series can easily be fastened to the valve body with a threaded ring nut. (M30x1.5). 2131 Two-way brass valve for fan-coils. ON/OFF operation with actuators series 22C. Max. operating temperature: 100°C. Disc stroke: 2.5 mm. Nominal pressure: 16 bar. Type 2131 2131 2131 Part number 213112 213134 21311 Dn 1/2" MM 3/4" MM 1" MM Kvs 1,7 2,8 4,5 Weight (g) 200 200 500 3131 Three-way brass valve for fan-coils. ON/OFF operation with actuators series 22C. Max. operating temperature: 100°C. Disc stroke: 2.5 mm. Can be used both as mixing and diverting valve, except for version 31311 which can only be used as diverting valve. Nominal pressure: 16 bar. The Kvs and by-pass Kvs values given in the table alongside refer to the valve used for diverting service. Type 3131 3131 3131 Part number 313112 313134 31311 Dn 1/2" MM 3/4" MM 1" MM Kvs 1,7 2,8 4,5 Kvs By-bass 1,3 1,8 3,1 Weight (g) 200 250 550 VU Tee fitting for creating by-pass in valves series 3131 (Dn 1“). Type VU Part number VU311 Dn 1" MM Weight (g) 250 69-0015-UK 23-10-2008 11:05 Pagina 3 FAN-COIL VALVES 4131 Three-way brass valve with 4 connections for fan-coils. ON/OFF operation with actuators series 22C. Max. operating temperature: 100°C. Disc stroke: 2.5 mm. Can be used both as mixing and diverting valve. Nominal pressure: 16 bar. The Kvs and by-pass Kvs values given in the table alongside refer to the valve used for diverting service. Type 4131 4131 Part number 413112 413134 Dn 1/2" MM 3/4" MM Kvs 1,7 2,8 Kvs By-bass 1,3 1,8 Weight (g) 350 400 840 Soft sealed union with nut for zone valves series 2131, 3131, 4131. Type 840 840 840 Part number 8401212GAS 8403434GAS 84011GAS Dn 1/2" x 1/2" 3/4" x 3/4" 1" x 1" Weight (g) 50 50 50 Application The valves are used for shutting off (series 2131, two-way) or diverting/mixing (series 3131 - 4131, 3-way and 3-way with 4 ports size 1/2” e 3/4”), the heat transfer fluid to a heating or air conditioning system as required by the room thermostat (or timing thermostat). The 3-way fan-coil valves series 3131 or 3-way with 4 ports series 4131, thanks to the special configuration of the plug controlling the by-pass flow, can be used equally well as diverting or mixing valves (thus optimizing to the full the various plumbing requirements in assembly). Diverting A AB B Mixing B AB A 3 69-0015-UK 23-10-2008 11:05 Pagina 4 FAN-COIL VALVES Operation 4 Operation of the fan-coil control valves 2131,3131,4131 is through the movement of the plug which shuts off the heat transfer fluid: the ON/OFF action of the plug is controlled by the actuator series 22C whose internal motor consists of a wax thermostatic element activated by a PTC thermistor against a signal sent by a room thermostat (or timing thermostat). The electrochemical actuator series 22C, in the 4-wire version, is provided with an auxiliary contact for additional controls (metering, control of pumps, fans or other equipment). The mechanical characteristic of the valves is of the Normally Open type. It can be adjusted or fully closed by manually turning the threaded plastic cap, provided on the valve. This threaded cap acts directly on the valve stem. When coupled to the 22C NC actuator, under rest conditions (actuator not energized), the valve becomes • normally closed (NC) (straight way closed and by-pass open if 3-way type); when the actuator is energized, the valve is opened. When coupled to the 22C NA actuator, under rest conditions (actuator not energized), the valve remains • normally open (NO) (straight way open and by-pass closed if 3-way type); when the actuator is energized, the valve is closed. The hydraulic flow rate and pressure drops characteristics of the valves are given in appropriate charts; instead, when coupled with the ON/OFF actuators, they assume the characteristics associated with such device. The three-way valves (or three-way valves with 4 ports) are designed and built to be used both as diverting valves (one inlet and two outlets) and mixing valves (two inlets and one outlet). It is recommended to observe the operating ⌬Pmax given in the table in order to avoid risk of malfunctions and/or noise. The reliability of the fan-coil control valves 2131, 3131, 4131 is guaranteed by the 100% testing on the production, which checks the hydraulic seals of the valve body and its components towards the outside and the seal of the plug in its flow shut-off function. Design features Body Stem Spring Plug rubber Technical features common to the entire range Max pressure, models w. constant Kv Max pressure, models w. variable Kv Min. fluid temperature Max. fluid temperature Liquids which can be used Plug stroke By-pass leakage Actuator connection Brass CW617N Brass with chemical nickel-plating Stainless steel EPDM 16 bar 10 bar 4°C 110°C Water (with glycol ⱕ 50%) 2.5 mm ⬍ 0,02 % Kvs Threaded ring nut M30 x 1.5 Installation Choice of the fan-coil control valves depends on the type of plumbing systems as well as the required flow rate and pressure drop characteristics. In systems with 2-way control valves it is advisable to provide by-pass valves series 466 to ensure a minimum recirculation of the fluid. Before mounting the valves, make sure that the piping is clean, and free from welding slag or the like. It is recommended not to install the valve with the 22C actuator facing down. The valves can be connected by using the soft-sealed tailpieces series 840 with the range of single-piece or union fittings (3-piece). The 1” three-way valves can use the TEE fitting (part No. VU311 - DN 1”) for making the by-pass. 23-10-2008 11:05 Pagina 5 FAN-COIL VALVES ⌬Pmax Max. differential operation pressure. (noise < 38 dBA) [bar] ⌬Ps Close off with actuator 22C NO/NC [bar] Kvs Kv by-pass ⌬Pmax Max. differential operation pressure. (noise < 38 dBA) [bar] 16 16 16 16 16 16 1,7 1,7 1,7 2,8 2,6 2,8 4,5 4,5 4,5 - 0,8 0,8 0,8 0,7 0,7 0,7 0,6 0,6 0,6 2,5 2,5 4 1,5 1,5 4 0,7 0,7 4 - - - 3 WAY VALVES 313112 1/2" 313112P 1/2" 313112DP 1/2" 313134 3/4" 313134P 3/4" 313134DP 3/4" 31311 1" 31311P 1" 31311DP 1" 15 15 15 20 20 20 25 25 25 15A3 15F3 15A3 20A3 20F3 20A3 25A3 25F3 25A3 16 16 16 16 16 16 16 16 16 Used as DIVERTER VALVE Used as MIXING VALVE 1,7 1,3 0,8 2,5 1,7 1,2 0,7 2 1,7 1,3 0,8 2,5 1,7 1,2 0,7 2 1,7 1,3 0,8 4 1,7 1,2 0,7 4 2,8 1,8 0,7 1,5 2,5 1,6 0,5 1 2,8 1,8 0,7 1,5 2,5 1,6 0,5 1 2,8 1,8 0,7 4 2,5 1,6 0,5 1 4,5 3,1 0,6 0,7 4,5 3,1 0,4 0,7 4,5 3,1 0,6 0,7 4,5 3,1 0,4 0,7 4,5 3,1 0,6 4 4,5 3,1 0,4 4 15A4 15F4 15I4 15A4 20A4 20F4 20A4 20I4 16 16 16 16 16 16 16 16 1,7 1,7 1,7 1,7 2,8 2,6 2,8 2,8 16 16 3 WAY VALVES 4 PORT 413112 413112P 41311240P 413112DP 413134 413134P 413134DP 41313440P 1/2" 1/2" 1/2" 1/2" 3/4" 3/4" 3/4" 3/4" 15 15 15 15 20 20 20 20 Used as DIVERTER VALVE 1,3 1,3 1,3 1,3 1,8 1,8 1,8 1,8 0,8 0,8 0,8 0,8 0,7 0,7 0,7 0,7 2,5 2,5 2,5 4 1,5 1,5 4 1,5 ⌬Ps Close off with actuator 22C NO/NC [bar] Kv by-pass 15A2 15F2 15A2 20A2 20F2 20A2 25A2 25F2 25A2 Port size 15 15 15 20 20 20 25 25 25 DN mm 2 WAY VALVES 213112 1/2" 213112P 1/2" 213112DP 1/2" 213134 3/4" 213134P 3/4" 213134DP 3/4" 21311 1" 21311P 1" 21311DP 1" DN Inches Kvs Max. operation pressure PN [bar] Pre-setting (Kv adjustable) Hydraulic characteristics Valve part number 69-0015-UK - Used as MIXING VALVE 1,7 1,7 1,7 1,7 2,5 2,5 2,5 2,5 1,2 1,2 1,2 1,2 1,6 1,6 1,6 1,6 0,7 0,7 0,7 0,7 0,5 0,5 0,5 0,5 2 2 2 4 1 1 4 1 • Red part numbers are standard versions • KVs = nominal value of the flow in the main way of the valve in m3/h with the valve fully open at a pressure of 1 bar and with water temperature at 20 °C • ⌬Pmax = maximum dynamic differential pressure at the ends of the fully open valve, without risk of noise ( < 38 dBA) • ⌬Ps= maximum static differential pressure at the ends of the valve against which the valve is able to be opened (through its internal spring for the three-way versions; through the actuator for the two-way versions) 5 69-0015-UK 23-10-2008 11:05 Pagina 6 FAN-COIL VALVES Overall dimensions (mm) 3131 DN D B D B C C 2131 DN A A B 29 29 29 28 28 28 30,5 30,5 30,5 C 13,5 13,5 13,5 13,5 13,5 13,5 13,5 13,5 13,5 Part number 313112 313112P 313112DP 313134 313134P 313134DP 31311 31311P 31311DP D 51 51 51 56 56 56 77,5 77,5 77,5 DN 1/2” 1/2” 1/2” 3/4” 3/4” 3/4” 1” 1” 1” A 52 52 52 56 56 56 82 82 82 4131 D A 52 52 52 56 56 56 82 82 82 B C DN 1/2” 1/2” 1/2” 3/4” 3/4” 3/4” 1” 1” 1” E Part number 213112 213112P 213112DP 213134 213134P 213134DP 21311 21311P 21311DP DN 6 A Part number 413112 413112P 413112DP 41311240P 41313440P 413134 413134P 413134DP DN 1/2” 1/2” 1/2” 1/2” 3/4” 3/4” 3/4” 3/4” A 52 52 52 52 56 56 56 56 B 29 29 29 29 28 28 28 28 C 13,5 13,5 13,5 13,5 13,5 13,5 13,5 13,5 D 95,5 95,5 95,5 100,5 102,5 112,5 112,5 112,5 E 35 35 35 40 40 50 50 50 B 29 29 29 28 28 28 38 38 38 C 13,5 13,5 13,5 13,5 13,5 13,5 13,5 13,5 13,5 D 68,5 68,5 68,5 69,5 69,5 69,5 92,5 92,5 92,5 23-10-2008 11:05 Pagina 7 FAN-COIL VALVES Connections dimensions (mm) 15A2 7 45° G 1/2 G1/2 Ø13.8 +0.1 0 Ø14.5 +0.1 0 15F2 1.5 12.7 10 10 17.2 20A2 Ø20.5 G 3/4 Ø19.5 G 3/4 45 ° 20F2 1.5 12.5 14.5 18 10 25A2 25F2 ° 12 21.5 Ø24 45 G1 Ø26 1.5 G1 69-0015-UK 12 21.5 69-0015-UK 23-10-2008 11:05 Pagina 8 FAN-COIL VALVES 15A3 Ø13.8 +0.1 0 1.5 Ø14.5 +0.1 0 8 15F3 G 1/2 G 1/2 45° 10 10 10 15.9 12.7 17.2 20A3 20F3 14.1 18 9.5 10 14.5 12.5 Ø19.5 45° G 3/4 Ø20.5 G 3/4 1.5 25A3 25F3 21.5 12 21.5 12 12 Ø24 ° G1 45 12 Ø26 G1 1.5 23-10-2008 11:05 Pagina 9 FAN-COIL VALVES 15A4 15F4 Ø14.5 +0.1 0 1.5 9 G 1/2 G 1/2 Ø13.8 +0.1 0 45° 12.7 17.2 35 10 13.5 35 10 12.7 20A4 +0.1 0 15I4 G 1/2 G 3/4 Ø20.5 Ø13.8 1.5 45° 17.2 14.5 40 50 10 10 15 15 G 3/4 12.5 18 40 18 50 12.5 Ø19.5 20I4 Ø19.5 20F4 G 3/4 69-0015-UK 69-0015-UK 23-10-2008 11:05 Pagina 10 FAN-COIL VALVES Flow rate/pressure drop charts 2131 - 3131 - 4131 DN 1/2" Straight way Diverting + Mixing Kv 1,7 by-pass Diverting Kv 1,3 by-pass Mixing Kv 1,2 [ kPa ] [ m bar ] [ mm c.a. ] 20 PRESSURE DROP 200 2000 100 1000 8 80 800 5 50 500 4 40 400 3 30 300 2 20 200 1 10 100 0.5 5 50 0.3 3 30 0.2 2 20 10 0.8 0.1 10 1 10 20 30 50 100 200 300 500 1000 0.05 0.1 0.2 0.3 0.5 1 2000 3000 [ l/h ] [ m3/h ] 0.01 0.02 0.03 2 3 FLOW RATE 2131 - 3131 - 4131 DN 3/4" Straight way Diverting Kv 2,8 Straight way Mxing Kv 2,5 by-pass Diverting Kv 1,8 by-pass Mixing Kv 1,6 [ kPa ] [ m bar ] [ mm c.a. ] 20 200 2000 100 1000 8 80 800 5 50 500 4 40 400 3 30 300 2 20 200 1 10 100 0.5 5 50 0.3 3 30 0.2 2 20 10 PRESSURE DROP 8 0.8 10 1 0.1 10 20 30 50 100 200 300 500 1000 0.05 0.1 0.2 0.3 0.5 1 2000 3000 [ l/h ] [ m3/h ] 0.01 0.02 0.03 FLOW RATE 2 3 23-10-2008 11:05 Pagina 11 FAN-COIL VALVES Flow rate/pressure drop charts 2131 - 3131 DN 1" Straight Way Diverting - Mixing Kv 4,5 by-pass Kv 3,1 [ kPa ] PRESSURE DROP 69-0015-UK [ m bar ] [ mm c.a. ] 20 200 2000 10 100 1000 8 80 800 5 50 500 4 40 400 3 30 300 2 20 200 1 10 100 0.5 5 50 0.3 3 30 0.2 2 20 0.8 10 1 0.1 10 20 30 50 100 200 300 500 1000 0.05 0.1 0.2 0.3 0.5 1 2000 3000 [ l/h ] [ m3/h ] 0.01 0.02 0.03 2 3 FLOW RATE The descriptions and photographs contained in this brochure are supplied by way of information only and are not binding. Watts Industries reserves the right to carry out any technical and aesthetic modifications to its products without prior notice. 9 69-0015-UK 23-10-2008 11:05 Pagina 12 Product range Watts Industries Re-order no. 69-0015-UK-IT/1-09-08-Rev.2 - System disconnectors Backflow protection devices Check valves Safety units Safety relief valves Pressure reducing valves Automatic control valves Butterfly valves Shut off valves Measuring gauges - Temperature control Expansion vessels Process switches Fuel products Gas products Electronic controls Installation protection products Radiator valves System products Manifolds and fittings Watts Industries Italia S.r.l. Via Brenno, 21 - 20046 Biassono (MI), Italia Ph. +39 039 4986.1 - Fax +39 039 4986.222 e-mail : info@wattsindustries.it - www.wattsindustries.com