Product bulletin for: ST2 Ball valves with two-way and three-way BSPP threaded fittings

Transcription

1 Product bulletin for: ST2 Ball valves with two-way and three-way BSPP threaded fittings ST2 Ball valves in conjunction with spring return and non-spring return VA-Actuators Developed for HVAC applications Energy, the right amount to the right place at the right time Bray Armaturen & Antriebe Europa Commercial Division Europark Fichtenhain A 13b Krefeld Germany Product bulletin issue date: 0614 A list of features Model and ordering code overview Application discription Selection aid Technical drawings Technical specifications Declaration of conformity ST2pb_ _en 1/28

2 Contents 1 Contents 1 Contents Product features To your advantage for energy efficiency Applications Technical features Technical description Technical specifications Technical specifications for the electric actuator Two-way valve/actuator combinations 24 V Three-way valve/actuator combinations 24 V Project and mounting tips Pressure Equipment Directive (PED) Flow diagram and curve characteristic K vs diagram Flow characteristic Drawings and dimensions ST2 two-way and three-way ball valves ST2 ball valves DN 15 to DN 25 with the V24xx, 4 Nm NSR rotary actuator 100 C ST2 DN 15 to DN 25 ball valves with the V24xx, 4 Nm NSR rotary actuator 140 C DN 32 to DN 50 ball valves with D24-70 and DM24-70, 8 Nm rotary actuators DN 15 to DN 25 ball valves with VAMS24-27xx, 3 Nm spring return actuators DN 32 to DN 50 ball valves with VAMS24-70xx, 8 Nm spring return actuators Electrical diagrams V24-35-P (-TA) VAM24-35-P (-TA) D DM VAMS24-27 (-TA) and VAMS24-70 (-TA) VAMS24xxx actuator calibration possibilities Calibration Declaration of conformity Declaration of Conformity PED ST2 Ball Valves Declaration of Conformity CE Actuator for Ball Valves ST General information Copyright protection /28 ST2pb_ _en

3 Product features 2 Product features 2.1 To your advantage for energy efficiency Very tight in closed position - corresponds to a < 0.01% leak rate; ANSI CLASS IV (Two-way and three-way valve controlled flow), < 1 % of K vs value in the three-way valve bypass High close-off pressure - One valve covers a large area of application Valve rangeability > 500:1 - Exact quantity-of-flow calibration Graphite reinforced seat backed with PTFE - EPDM O-rings - Minimum torque demands; long life 2.2 Applications Ball Valves are designed to regulate the flow of hot or chilled water and lowpressure steam in response to the demand of a controller in Heating, Ventilating, and Air Conditioning (HVAC) systems. These two-way and three-way forged brass valves are available in sizes DN 15 through DN 50. The stainless steel ball allows the use of fluids from -30 C to 140 C Valves can be combined with Bray Commercial actuators with manual operation as part of the standard delivery. In particular, all actuator models are available for different power supplies as well as optional safety function and auxiliary switches. The water quality must meet VDI 2035 requirements. Typical applications: HVAC systems VAV Air heaters Steam boilers Hot water tanks Central air conditioning Refrigeration technology Thermal technology District heating And many more! ST2pb_ _en 3/28

4 Product features 2.3 Technical features PN 40 nominal pressure -30 C to 140 C fluid temperature range Stainless steel valve ball Stainless steel stem Rp ½ Rp 2, corresponding to DN 15...DN 50 nominal sizes Equal percent characteristic of the controlled flow with characterizing disc Linear characteristic in the three-way bypass Three-way models without characterizing disc can be used as mixing valves or diverting valves. Durability test duration with contaminated water (Fe ) is fullstroke cycles; Ten full-stroke cycles per minute Maintenance free K VS from 0.4 m³/h to 63 m³/h 4/28 ST2pb_ _en

5 Technical description 3 Technical description Centering Bushing Blowout-Proof Valve Stem (Square-Head) Actuator Mounting Flange EPDM O-Rings EPDM Double O-Ring Stem Seals Thrust Washer Graphite-Reinforced PFTE Seats Inlet Port (Port A) Outlet ( Port B) Characterizing Disc Fig. 1 Ball Valve section view The cross-sectional diagram above shows in detail the high quality of the Bray valve. Two O-rings provide a significant external tightness in the area of the valve stem Square head valve stem reduces hysteresis The thrust washer prevents an increase in friction throughout valve life-time Both graphite reinforced PTFE seats are backed with EPDM O-rings. This ensures tight sealing and provides a constant seating force that compensates for expansion, contraction, and seat wear without increasing operating torque throughout valve life-time The super-finished stainless steel ball limits seat wear to a minimum and immensely reduces possible deposits on the ball surface. The Amodel characterization disc enables an excellent equal percent characteristic at different K VS values per nominal size. ST2pb_ _en 5/28

6 Technical description 3.1 Technical specifications Table 1 Technical specifications Rp ½ bis Rp 2;DN 15 up to DN 50 Fluids: Nominal pressure PN: Close-off pressure: Hot and chilled water with max. 50% Glycol, as per VDI 2035; Steam C max at 103 kpa 40 bar 1380 kpa Fluid temperature: -30 C to 140 C Max. temperature dependant on the actuator model. Storage temperature: -20 C bis 65 C, Dry and dust free Union size: Internal thread (Rp, ISO 7/1) Leak rate: < 0.01% ANSI CLASS IV (Two-way valve and the mixing valve controlled flow < 1 % of Kvs value in the mixing valve bypass) Turning angle 90 Installation orientation Maintenance Max. pressure drop pv by completely open valve KVS values Do not fit the valve in an over-head position. Maintenance free 600 kpa for valves without characterizing disc 340 kpa for valves with characterizing disc 240 kpa for low noise application 0.4 m³/h bis 63 m³/h Rangeability > 500:1 as per EN , -4 Material: Body Valve seat Brass, DIN EN 12165, CW617N Stem Stainless steel EN PTFE Graphite filling Ball Stainless steel EN Stem seals Characterizing disc EPDM O-rings AMODEL AS-1145HS 6/28 ST2pb_ _en

7 Technical description Table 2 Two-way: Max. close off pressure 1380 kpa Actuator flange F04; ISO 5211 Item number Kvs Rp ISO 7/1 (BSPP) DN Weight ST B 0.4 1/2" ST B /2" ST B 1 1/2" ST B 1.6 1/2" ST B 2.5 1/2" ST B 4.0 1/2" ST B * 10 1/2" ST B 4.0 3/4" ST B 6.3 3/4" ST B * 10 3/4" ST B 6.3 1" ST B 10 1" ST B * 16 1" ST B /4" ST B /4" ST B * /4" ST B /2" ST B /2" ST B * /2" ST B 25 2" ST B 40 2" ST B * 63 2" * Ball valves without control disc are recommended for on/off application. ST2pb_ _en 7/28

8 Technical description Table 3 Three-way: Max. close off pressure 1380 kpa, actuator flange F04; ISO 5211 Item number Kvs Rp ISO 7/1 (BSPP) DN Weight ST B 0.4 1/2" ST B /2" ST B 1 1/2" ST B 1.6 1/2" ST B 2.5 1/2" ST B 4.0 1/2" ST B * 10 1/2" ST B 4.0 3/4" ST B 6.3 3/4" ST B * 10 3/4" ST B 6.3 1" ST B 10 1" ST B * 16 1" ST B /4" ST B /4" ST B * /4" ST B /2" ST B /2" ST B * /2" ST B 25 2" ST B 40 2" ST B * 63 2" * Ball valves without characterizing disc can be used as mixing valves or diverting valves 8/28 ST2pb_ _en

9 Technical description 3.2 Technical specifications for the electric actuator Table 4 Bray ball valves can be combined with six different actuators, with and without spring return. The valve/actuator combinations are factory fitted for delivery. For applications requiring fluid temperatures of up to 140 C, the TA model is to be used. Actuator specifications for nominal size DN 15 to DN 25 ST2 ball valves Actuator order-number V24-35-P VAM24-35-P VAMS24-27 Standard Spring return Adapter Direct mount Direct mount Direct mount Order number with Temperature adapter (TA) V24-35-P-TA VAM24-35-P-TA VAMS24-27-TA Nominal size DN 15...DN 25 DN 15...DN 25 DN 15...DN 25 Torque Nm Manual operation Yes Yes No Voltage AC 24 V AC +25/-20% 24 V AC +25/-20% 2-Point V AC ±20% 24 V DC +20%/-10% Yes Override to Min, Mid, Max position 3-Point Yes - - Proportional - Yes Yes Input - 0(2)...10 V 0(2)...10 V with 500 Ohm resistance - 0(4)...20 ma 0(4)...20 ma Output - 0(2)...10 V 0(2)...10 V Aux. switches runtime in s [50 Hz] s < 25 s Spring return Turning angle range 93 +/ / Mechanical Connected wattage 2.1 VA 2.1 VA 4.7 VA Effective direction - Switchable A = Clockwise B = Counter clockwise Operation cycles full cycles V full cycles full cycles Positioning times under full load times under full load times under full load Noise level 35 db(a) nominal 35 db(a) nominal < 37 db(a) nominal < 20 db(a) idle Protection IP 42 IP 42 IP 54 Terminals 1.2 m 3 * 0.75 mm² 1.2 m 4 * 0.75 mm² 1.2 m 4 * 0.85 mm² Cable type Plenum rated cable Plenum rated cable Plenum rated cable Temperature Storage temperature. -29 C C -29 C C -40 C C 95% rh Ambient temperature -20 C C -20 C C -30 C C 90% rh ST2pb_ _en 9/28

10 Technical description Actuator order-number V24-35-P VAM24-35-P VAMS24-27 Moisture 90%, Non-condensing 90%, Non-condensing %, Non-condensing Fluid temperature Standard -30 C C -30 C C C WithTemperature adapter (TA) Saturated steam (103 kpa) mit TA -30 C C -30 C C -30 C C C C C only with TA Weight In Kg Approvals CE, UL, CSA CE, UL, CSA CE, UL, CSA Table 5 Actuator specifications for nominal size DN 32 to DN 50 ST2 ball valves Actuator order-number D24-70 DM24-70 VAMS24-70 Standard Spring return Adapter Incl. by actuator Incl. by actuator Direct mount Order number with Temperature adapter (TA) Not required Not required VAMS24-70-TA Nominal size (DN 15...) DN 32...DN 50 (DN 15...) DN 32...DN 50 (DN 15...) DN 32...DN 50 Torque Nm Manual operation Yes Yes Through hexagon socket Voltage AC AC 20 to 30 V at 50/60 Hz or DC 24 V ±10% AC 20 to 30 V at 50/60 Hz or DC 24 V ±10% 24 V AC ±20% 24 V DC +20%/-10% 2-Point Yes - Yes Override to Min, Mid, Max position 3- Point Yes - - Proportional - Yes Yes Input - 0(2)...10 V 0(2)...10 V With 500 Ohm resistance - 0(4)...20 ma 0(4)...20 ma Output - 0(2)...10 V 0(2)...10 V Aux. switches Run time in s [50 Hz] 30 s 30 s 150 s Spring return 22 s Turning angle range Mechanical Connected wattage 7.5 VA 7.5 VA 7.9 VA Effective direction - Switchable A = Clockwise B = Counter clockwise Operation cycles full cycles full cycles full cycles Positioning Under full load Noise level 45 db(a) Nominal 45 db(a) Nominal < 35 db(a) Nominal < 20 db(a) idle Protection IP 42 IP 54 With cable fitted below IP 42 IP 54 With cable fitted below IP 54 10/28 ST2pb_ _en

11 Technical description Actuator order-number D24-70 DM24-70 VAMS24-70 Terminals 1.5mm² 1.5mm² Cable 1.2 m 4 * 0.85 mm² Cable type Plenum rated cable Storage temperature. -30 C +60 C -30 C +60 C -40 C C 95% rh Ambient temperature -20 C C -20 C C -40 C +60 C 90% rh Moisture %, Non-condensing %, Non-condensing %, Non-condensing Fluid temperature Standard -30 C C -30 C C C WithTemperature adapter (TA) Saturated steam (103 kpa) mit TA NA C Without TA NA C Without TA -30 C C (VAMS24-70-TA) C Only with TA Weight In Kg Approvals CE, UL, CSA CE, UL, CSA CE, UL, CSA Note: These actuators of course also fit valve sizes DN 15...DN 25. However, it is more viable economically to use actuators with Three-Nm and Four-Nm. ST2pb_ _en 11/28

12 Technical description 3.3 Two-way valve/actuator combinations 24 V Table 6 24 V two-way valve/actuator combinations Actuator order numbers for fluid temperatures up to 100 C V24-35-P VAM24-35-P D24-70 DM24-70 VAMS24-27 VAMS24-70 Actuator order numbers for fluid temperatures up to 140 C V24-35-P- TA VAM24-35-P- TA Standard VAMS TA Spring return VAMS TA Function 2/3-Point Proportional 2/3- Point Proportional Proportional Proportional Part number Kvs DN ST B ST B ST B 1 15 ST B ST B ST B 4 15 ST B ST B 4 20 ST B ST B ST B ST B ST B ST B ST B ST B ST B ST B ST B ST B ST B ST B Order example: To make an order for a valve/actuator combination, always quote first the valve order code and then the actuator order code. DN 20 two-way valve 10 K vs combined with a proportional actuator for fluid temperatures of up to 140 C ST B/VAM24-35-P-TA 12/28 ST2pb_ _en

13 Technical description 3.4 Three-way valve/actuator combinations 24 V Table 7 24 V three-way valve/actuator combinations Actuator order numbers for fluid temperatures up to 100 C V24-35-P VAM24-35-P D24-70 DM24-70 VAMS24-27 VAMS24-70 Actuator order numbers for fluid temperatures up to 140 C V24-35-P- VAM24-35-P-TA TA Standard VAMS VAMS TA TA Spring return Function 2/3-Point Proportional 2/3- Point Proportional Proportional Proportional ST B ST B ST B 1 15 ST B ST B ST B 4 15 ST B ST B 4 20 ST B ST B ST B ST B ST B ST B ST B ST B ST B ST B ST B ST B ST B ST B Order example: To make an order for a valve/actuator combination, always quote first the valve order code and then the actuator order code. DN 32 three-way valve, 16 K vs combined with a proportional spring-return actuator for fluid temperatures of up to 140 C ST B/VAMS24-70-TA ST2pb_ _en 13/28

14 Technical description 3.5 Project and mounting tips Fitting dimensions as per ISO 5752, EN 558 series 20 DIN 3202 Part 3 K1 Union BSPP ISO 7/1 3.6 Pressure Equipment Directive (PED) Actuator flange as per ISO 5211, F04 Installation instructions are with delivery The ST2 series ball valves are in accordance with guidelines 97/23/EC PED Categorie III. Module B1 EC-Design Test Certificate and Module D, Quality Assurance System recognized by Lloyds (Position Nr. 0038) as per EC conformity verification COV /1 14/28 ST2pb_ _en

15 V 100[m³/h] ST2 Ball valves 4 Flow diagram and curve characteristic 4.1 K vs diagram Flow diagram and curve characteristic The following diagram shows the flow K VS at a differential pressure of 100 kpa across the valve and a water temperature of 5 C to 30 C ,1 0,01 p 100 [kpa] Fig. 2 K vs flow diagram For the recommended maximum pressure drop p v across a completely open valve see: page 6 Technical specifications. (600 kpa without- 340 kpa with characterizing disc and 240 kpa for low noise application) ST2pb_ _en 15/28

16 Drawings and dimensions 4.2 Flow characteristic ST2 ball valves have in their controlled flow, a modified equal percent flow characteristic that is based on VDI Fig. 3 Flow characteristic digram valves with control disc 5 Drawings and dimensions 5.1 ST2 two-way and three-way ball valves B C F C F Port Marking B Port Marking = fittings code E E G Fig. 4 Views of valve dimension codes Table 8 Valve dimensions for two-way and three-way valves DN 15 to DN 50 Valve B C E F G* DN DN DN DN DN DN * Only for three-way valves 16/28 ST2pb_ _en

17 Drawings and dimensions 5.2 ST2 ball valves DN 15 to DN 25 with the V24xx, 4 Nm NSR rotary actuator 100 C DN 15 to DN 25 ball valves with V24-35-P and VAM24-35-P, 4 Nm rotary actuators for applications with fluid temperatures up to 100 C. 89 Clearance Required A Port Marking Locations D Fig. 5 Mounted two-way valve/actuator dimensions Table 9 Valve/actuator mounted dimensions for two-way & three-way DN 15 to DN 25 valves Valves A B C D E F G* DN DN DN * Only for three-way valves ST2pb_ _en 17/28

18 Drawings and dimensions 5.3 ST2 DN 15 to DN 25 ball valves with the V24xx, 4 Nm NSR rotary actuator 140 C DN 15 to DN 25 ball valves with V24-35-P-TA and VAM24-35-P-TA, Four-Nm rotary actuators for applications with fluid temperatures up to 140 C. Temperature adapter = TA is included. 89 Clearance Required A Port Marking Locations D Fig. 6 Mounted two-way valve/actuator dimensions Table 10 Valve/actuator mounted dimensions for valves DN 15 to DN 25 Valves A B C D E F G* DN 15 +TA DN 20 +TA DN 25 +TA * Only for three-way valves 18/28 ST2pb_ _en

19 Drawings and dimensions 5.4 DN 32 to DN 50 ball valves with D24-70 and DM24-70, 8 Nm rotary actuators For applications with fluid temperatures up to 140 C Fig. 7 Valve/actuator mounted dimensions DN 32 to DN 50 Table 11 Valve/actuator mounted dimensions for valves DN 15 to DN 50 Valves A B C E G* DN DN DN DN DN DN * Only for three-way valves ST2pb_ _en 19/28

20 Drawings and dimensions 5.5 DN 15 to DN 25 ball valves with VAMS24-27xx, 3 Nm spring return actuators 89 Clearance Required A Port Marking Locations D A Fig. 8 Spring return valve/actuator mounted dimensions DN 15 to DN 25 Table 12 Mounted dimensions for applications with fluid temperatures of up to 100 C Valves A B C D E F G* DN DN DN * Only for three-way valves Table 13 Mounted dimensions for applications with fluid temperatures of up to 140 C; Temperature adapter = TA is included Valves A B C D E F G* DN 15 +TA DN 20 +TA DN 25 +TA * Only for three-way valves 20/28 ST2pb_ _en

21 Drawings and dimensions 5.6 DN 32 to DN 50 ball valves with VAMS24-70xx, 8 Nm spring return actuators Clearance Required F A C Port M arking Locations E G B A Fig. 9 Spring return valve/actuator mounted dimensions DN 32 to DN 50 Table 14 Mounted dimensions for applications with fluid temperatures of up to 100 C Valves A B C D E F G* DN DN DN * Only for three-way valves Table 15 Mounted dimensions for applications with fluid temperatures of up to 140 C; Temperature adapter = TA is included Valves A B C D E F G* DN 32 +TA DN 40 +TA DN 50 +TA * Only for three-way valves ST2pb_ _en 21/28

22 Drawings and dimensions 5.7 Electrical diagrams 5.8 V24-35-P (-TA) BK RD OG V AC 50/60 Hz ~ 5.9 VAM24-35-P (-TA) BK RD GY OG V =/~ 24 V AC 50/60 Hz 24 V DC 0(2).. 10 V DC 0(2).. 10 V DC 22/28 ST2pb_ _en

23 ON V ma V ma ST2 Ball valves Drawings and dimensions 5.10 D24-70 = Factory Settings ~ 5.11 DM V AC/DC ~ V AC/DC S 4 3 O = Factory Settings ~ 24 V AC/DC ON 1 2 ON 1 2 S O S O ST2pb_ _en 23/28

24 Drawings and dimensions 5.12 VAMS24-27 (-TA) and VAMS24-70 (-TA) A CAL CAL B ~ V AC/DC ~ V AC/DC Control 0(2).. 10 V and 0(4).. ma ~ V AC/DC Master-Slave V AC/DC ~ - + On/Off 24/28 ST2pb_ _en

25 Drawings and dimensions 5.13 VAMS24xxx actuator calibration possibilities Installation side Input signal Factory setting Increasing Decreasing Fig. 342: Control behavior and the calibration of VA9203 / VA9208 actuators 5.14 Calibration Direction Feedback Direct Acting Reverse Acting (*) 0 position is for spring return The calibration function CAL enables the actuator to adjust the selected input signal range to a reduced angle of rotation. The calibration value is saved when power goes off by switch or by power failure. Proceed as follows: Connect the actuator to the power supply and turn the setting screw to the CAL position. Leave the actuator in this position for at least five seconds so that the end position is found while the actuator turns. Turn the setting screw to your chosen input signal. The selected input signal is reconfigured proportionally to the reduced rotation range. Note: During normal operation if the valve stroke increases, the input signals are configured, due to valve seat wear, in 0.5 steps only. If the actuator mounting position is changed, repeat procedure steps 1 and 2 in order to reset the calibration. Here the setting screw must be held in the CAL position for at least two seconds to initialize the calibration.when the rotary switch is placed in the CAL position, the actuator uses the following standard values: Input signal: 0-10 V DCActing direction: DA (Direct Acting) ST2pb_ _en 25/28

26 Declaration of conformity 6 Declaration of conformity 6.1 Declaration of Conformity PED ST2 Ball Valves 26/28 ST2pb_ _en

27 Declaration of conformity 6.2 Declaration of Conformity CE Actuator for Ball Valves ST2 ST2pb_ _en 27/28

28 General information 7 General information All information contained in the Product bulletin is carefully verified. Bray commercial assumes no responsibility for errors that might appear in this bulletin or for any damage to things or persons resulting from improper use of this bulletin or related products and software. Bray commercial reserves the right to change the contents of this bulletin as well as the specifications and features of related products and software without notice at any time. For the purpose of this documentation an operator is someone who is familiar with the installation, startup, operation and maintenance of the system. The operator must have the following qualifications: Trained or authorized to energize/de-energize the system in accordance with established safety procedures. Trained and authorized in the proper care and use of protective equipment in accordance with established safety procedures. 7.1 Copyright protection This product bulletin is protected by copyright laws and is for internal use only. The reproduction and communication or application as well as the passing on to third parties of this product bulletin, including extracts, in any way, Shape or form without the express written permission of the manufacturer is strictly forbidden. 28/28 ST2pb_ _en