VQE: 2-way flanged valve, PN 16

Transcription

1 Ambient onditions 1) Operating temperature 2) C Produt data sheet VQE: 2-way flanged valve, PN 16 How energy effiieny is improved Effiient use in ontinuous ontrol systems Features Continuous ontrol of old/hot water and low-pressure steam up to 115 C in losed iruits Water quality as per VDI 2035 In ombination with valve atuators AVM 322(S), AVM 234S and AVF 234S as ontrol unit Not suitable for drinking water or potentially explosive atmospheres Valve with flange onnetion as per EN , seal form B Regulating valve, free of silione grease, painted blak Charateristi an be set with SUT (SAUTER Universal Tehnology) valve atuators to linear, equal-perentage or quadrati The valve is losed when the spindle is moved out Closing against the pressure Valve body and seat made of grey ast iron Stainless-steel spindle Plugs made of stainless steel with metal-to-metal seal Stuffing box made of stainless steel with wiper ring and double O-ring seal made of EPDM VQE Tehnial data Parameters Nominal pressure PN 16 Connetion Valve harateristi Control ratio of valve > 30:1 Stuffing box Flange as per EN , form B Equal-perentage 2 EPDM O-rings Leakage rate Class III as per DIN EN (0.001 x k vs ) Valve stroke 20 mm (DN ) 40 mm (DN ) Operating pressure Up to 120 C 16 bar At 150 C 14.4 bar Between 120 C and 150 C, a linear interpolation an be performed Standards and diretives Pressure and temperature data EN 764, EN 1333 Flow parameters EN (page 3) Pressure Equipment Diretive 97/23/EC (fluid group II) With CE label Overview of types Type Nominal diameter k vs value Weight VQE065F300 DN m³/h 23.8 kg VQE080F300 DN m³/h 30.2 kg VQE100F300 DN m³/h 41.3 kg VQE125F300 DN m³/h 62 kg VQE150F300 DN m³/h 89 kg Aessories Type Desription Adaptor (required when temperature of the medium is C) from DN Stuffing box heater 230V~, 15 W for medium below 0 C 1) Air humidity must not exeed 75% 2) At temperatures below 0 C, use a stuffing box heater. Use adaptor (aessory) at temperatures above 130 C Right of amendment reserved 2015 Fr. Sauter AG 3.1 1/8

2 Type Desription Stuffing box heater 24V~, 15 W for medium below 0 C Complete replaement stuffing box from DN 65 Combination of VQE with eletri atuators / Warranty: The tehnial data and pressure differenes indiated here are appliable only in ombination with SAUTER valve atuators. The warranty does not apply if used with valve atuators from other manufaturers. / Definition of p s : Maximum admissible pressure drop in the event of a malfuntion (pipe break after the valve) at whih the atuator reliably loses the valve by means of a return spring. / Definition of p max : Maximum admissible pressure drop in ontrol mode at whih the atuator reliably opens and loses the valve. Combination of VQE with eletri atuators, atuating power 1000 N Atuator AVM322F120 AVM322F122 Atuating power 1000 N 1000 N AVM322SF132 Control signal 2-/3-point 2-/3-pt., V, ma Running time 120/240 s 120/80 s Closes against the pressure p max p [bar] p max VQE065F VQE080F Cannot be used to lose with the pressure A Maximum media temperature: 100 C Combination of VQE with eletri atuators, atuating power 2500 N, 2000 N Atuator AVM234SF132 AVF234SF132 AVF234SF232 Atuating power 2500 N 2000 N Control signal 2-/3-pt., V, ma 2-/3-pt., V, ma Running time DN 65, DN 80 Running time DN Closes against the pressure 40/80/120 s 40/80/120 s 80/160/240 s 80/160/240 s p [bar] p max p max p s VQE065F VQE080F VQE100F VQE125F VQE150F Cannot be used to lose with the pressure A A Spring return: AVF234SF132 normally losed (NC); AVF234SF232 normally open (NO) At temperatures above 130 C, aessories are required Desription of operation The valve an be moved to any intermediate position with an eletri atuator. When the spindle is moved out, the ontrol passage of the valve is losed. The nominal diameters DN 65 to DN 150 may only be used when employing the against the pressure losing proedure. The flow diretion marked on the valve must be observed. The flow parameters orrespond to EN /8 3.1 Right of amendment reserved 2015 Fr. Sauter AG

3 Closing against the pressure These ontrol valves are haraterised by their reliability and preision and make an important ontribution towards environmentally friendly regulation. They meet diffiult hallenges suh as the quiklosing funtion, overoming differential pressures and ontrolling medium temperatures, all with a low noise level. The valve spindle is automatially and firmly onneted to the atuator spindle. The stainless steel plug ontrols the equal-perentage flow rate in the ontrol passage. The tightness of the valve is ensured by the seat inorporated in the body. The stuffing box is maintenane-free. This onsists of a stainless steel body, two O-rings, a wiper ring and a grease reserve. This is free of silione grease, and silione oil may not be used for the spindle. Intended use This produt is only suitable for the purpose intended by the manufaturer, as desribed in the Desription of operation setion. All related produt douments must also be adhered to. Changing or onverting the produt is not admissible. Engineering and fitting notes The valves are ombined with the valve atuators without a spring return or with valve atuators with a spring return. The atuator is mounted diretly on the valve and fastened with srews. The atuator is onneted with the valve spindle automatially. When the system is ommissioned, the atuator moves out and the onnetor loses automatially when it reahes the lower valve seat. The stroke of the valve is also deteted by the atuator, and no further adjustments are required. Therefore the fore on the seat is always the same and the smallest amount of leakage is ensured. With the SUT atuators, the harateristi an be set to linear or quadrati as required. Additional tehnial data Tehnial information SAUTER slide rule for valve sizing P Tehnial manual on ontrol units Parameters, fitting notes, ontrol, general information Fitting instrutions Appliable EN, DIN, AD, TRD and UVV regulations P AVM 234S assembly MV AVF 234S assembly MV AVM 322(S) assembly P Delaration on materials and the environment MD Fitting position The ontrol unit an be fitted in any position, but the hanging position is not reommended. Condensate, drops of water, et. must be prevented from entering the atuator. When installed horizontally, and with regard to the valve spindle, the admissible atuator or support weight, without strutural support, is max. 25 kg. When the atuator is mounted on the valve, make sure the plug is not twisted on the seat (this an damage the sealing surfae). When insulating the valve, it may only be insulated up to the onneting lip of the atuator. To inrease the funtional reliability of the valves, the system should onform to DIN/EN (heating systems in buildings). DIN/EN states, amongst other things, that the system has to be flushed through before being put into servie. Using with steam The valves an be used for low-pressure steam up to 115 C with the same p max values. When using the valve, make sure that it does not operate mainly on the lower third of its stroke range. This leads to an extremely high flow speed, whih greatly redues the servieable life of the valve. Right of amendment reserved 2015 Fr. Sauter AG 3.1 3/8

4 Using with water So that impurities are retained in the water (welding beads, rust partiles, et.) and the spindle seal is not damaged, we reommend installing olleting filters, for example one for eah floor or pipe run. Water requirements aording to VDI When using an additive in the water, the ompatibility of the materials must be heked with the manufaturer of the medium. The materials table shown below may be used. When glyol is used, we reommend using a onentration of between 20% and 55%. Other information regarding hydraulis and noise in systems The valves an be used in a low-noise environment. To prevent noise, the pressure differenes p max listed below should not be exeeded. The pressure differene p v is the maximum pressure that may at on the valve regardless of the stroke position, in order that the risk of avitation and erosion is limited. These values are irrespetive of the atuator fore. Cavitation aelerates wear and auses noises. To prevent avitation, the pressure differential on the valve should not exeed the value p krit : p krit = (p1 p v ) 0.5 p1 = upstream pressure before the valve (bar) p v = steam pressure at operating temperature (bar) The alulation works with absolute pressure. For the spring return, the stated p s values are also the permissible differential pressure up to whih the atuator an guarantee that the valve is losed in the event of an inident. Beause this is a quik-losing funtion with a fast stroke movement (using a spring), this value an exeed p max. 4/8 3.1 Right of amendment reserved 2015 Fr. Sauter AG

5 Flow-rate hart P [kpa] v V [m /h] V 100 [l/s] 100 DN 150 kvs 320 DN 125 kvs 220 DN 100 kvs 160 DN 80 kvs 100 DN 65 kvs , P [bar] 1 10 v100 Type p v Against the pressure VQE065F VQE080F VQE100F VQE125F VQE150F Additional version information With the pressure Valve body made of grey ast iron as per EN 1561, ode EN-GJL-250, material number EN-JL 1040 with smooth drilled flanges as per EN , seal form B. Valve body proteted by matt paint RAL 9005 jet blak. Fitted in the piping with welding flange as per EN Valve fitting length as per EN 558-1, basi series 1. Flat seal on valve body made of asbestos-free material. Right of amendment reserved 2015 Fr. Sauter AG 3.1 5/8

6 Material numbers aording to DIN DIN materials DIN designation Valve body EN-JL 1040 EN-GJL-250 (GG25) Valve seat EN-JL 1040 EN-GJL-250 Spindle X20Cr13 Plug X20Cr13 Stuffing box X12CrMoS-17 Additional details on the definitions of pressure differene p v : Maximum admissible pressure differene over the valve at every stroke position, limited by noise level and erosion. With this parameter, the valve is haraterised as a flow element with speifi hydrauli behaviour. Monitoring the avitation and erosion along with the assoiated noise inreases the servie life and the operational apaity. p max : Maximum admissible pressure differene over the valve at whih the atuator an reliably open and lose the valve. The following are onsidered: Stati pressure and flow effets. This value ensures trouble-free stroke movement and losing of the valve. The value p v of the valve is never exeeded. p s : Maximum admissible pressure differene over the valve in the event of a malfuntion (e.g. power failure, exessive temperature or pressure, pipe break) at whih the atuator an lose the valve tightly and, if neessary, maintain the full operating pressure against atmospheri pressure. Beause this is a safety funtion with a rapid stroke movement, p s an be greater than p max or p v. The disruptive flow effets that arise here are quikly passed through and are of minor importane in this mode of operation. For 3-way valves, the values only apply to the ontrol passage. p stat : Line pressure behind the valve. This essentially orresponds to the idle pressure when the pump is swithed off, aused for example by the fluid level in the system, inreased pressure due to pressure tanks, steam pressure, et. For valves that lose with pressure, the stati pressure plus the pump pressure are used. Disposal When disposing of the produt, observe the urrently appliable loal laws. More information on materials an be found in the Delaration on materials and the environment for this produt. Charateristi for atuators with positioner On atuator AVM 322S, AVM 234S or AVF 234S Equal-perentage/linear/quadrati 6/8 3.1 Right of amendment reserved 2015 Fr. Sauter AG

7 Dimension drawings DN E H d b A Øk DN L VQE DN A L H k d 4x19 8x19 8x19 8x19 8x23 b E Combinations AVM 234 AVF > > Right of amendment reserved 2015 Fr. Sauter AG 3.1 7/8

8 AVM 322(S) > Aessories ,5 40,9 Fr. Sauter AG Im Surinam 55 CH-4016 Basel Tel /8 3.1 Right of amendment reserved 2015 Fr. Sauter AG