Post on 14-Feb-2021
ST2pb_12062014_en 1/28
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
47807 Krefeld
Germany
www.bray-commercial.eu
+49 2151 5336 111
+49 2151 5336-199
+49 162 4363713
+49 172 1908330
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
2/28 ST2pb_12062014_en
Contents
ST2 Ball valves
1 Contents
1 Contents ......................................................................................................................... 2
2 Product features ............................................................................................................. 3
2.1 To your advantage for energy efficiency ....................................................................... 3
2.2 Applications .................................................................................................................... 3
2.3 Technical features.......................................................................................................... 4
3 Technical description ................................................................................................... 5
3.1 Technical specifications ............................................................................................... 6
3.2 Technical specifications for the electric actuator ....................................................... 9
3.3 Two-way valve/actuator combinations 24 V ................................................................ 12
3.4 Three-way valve/actuator combinations 24 V .............................................................. 13
3.5 Project and mounting tips ............................................................................................ 14
3.6 Pressure Equipment Directive (PED) .......................................................................... 14
4 Flow diagram and curve characteristic ........................................................................ 15
4.1 Kvs diagram .................................................................................................................. 15
4.2 Flow characteristic ....................................................................................................... 16
5 Drawings and dimensions ............................................................................................ 16
5.1 ST2 two-way and three-way ball valves ...................................................................... 16
5.2 ST2 ball valves DN 15 to DN 25 with the V24xx, 4 Nm NSR rotary actuator 100°C ... 17
5.3 ST2 DN 15 to DN 25 ball valves with the V24xx, 4 Nm NSR rotary actuator 140°C ... 18
5.4 DN 32 to DN 50 ball valves with D24-70 and DM24-70, 8 Nm rotary actuators ......... 19
5.5 DN 15 to DN 25 ball valves with VAMS24-27xx, 3 Nm spring return actuators .......... 20
5.6 DN 32 to DN 50 ball valves with VAMS24-70xx, 8 Nm spring return actuators .......... 21
5.7 Electrical diagrams....................................................................................................... 22
5.8 V24-35-P (-TA) ............................................................................................................. 22
5.9 VAM24-35-P (-TA) ....................................................................................................... 22
5.10 D24-70 ......................................................................................................................... 23
5.11 DM24-70 ...................................................................................................................... 23
5.12 VAMS24-27 (-TA) and VAMS24-70 (-TA) ................................................................... 24
5.13 VAMS24xxx actuator calibration possibilities .............................................................. 25
5.14 Calibration .................................................................................................................... 25
6 Declaration of conformity ............................................................................................. 26
6.1 Declaration of Conformity PED ST2 Ball Valves ......................................................... 26
6.2 Declaration of Conformity CE Actuator for Ball Valves ST2 ........................................ 27
7 General information ..................................................................................................... 28
7.1 Copyright protection ..................................................................................................... 28
ST2pb_12062014_en 3/28
ST2 Ball valves
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 Kvs–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 low-pressure 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!
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Product features
ST2 Ball valves
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 (Fe304) is 200 000 full-
stroke cycles; Ten full-stroke cycles per minute
Maintenance free
KVS from 0.4 m³/h to 63 m³/h
ST2pb_12062014_en 5/28
ST2 Ball valves
Technical description
3 Technical description
Outlet( B)Port
Inlet Port(Port A)
Blowout-ProofValve Stem
(Square-Head)
Actuator
Mounting FlangeCenteringBushing
EPDMDouble O-Ring
Stem Seals
Thrust
Washer
EPDMO-Rings
Graphite-Reinforced
PFTE Seats
Ball
CharacterizingDisc
Fig. 1 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 KVS values per nominal size.
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Technical description
ST2 Ball valves
3.1 Technical specifications
Table 1 Technical specifications
Rp ½ bis Rp 2;DN 15 up to DN 50
Fluids: Hot and chilled water with max. 50% Glycol, as per VDI 2035; Steam + 121°C max at 103 kPa
Nominal pressure PN: 40 bar
Close-off pressure: 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 Do not fit the valve in an over-head position.
Maintenance Maintenance free
Max. pressure drop ∆pv by completely open valve
600 kPa for valves without characterizing disc 340 kPa for valves with characterizing disc 240 kPa for low noise application
KVS values 0.4 m³/h bis 63 m³/h
Rangeability > 500:1 as per EN 60534-2, -4
Material:
Body Brass, DIN EN 12165, CW617N
Stem Stainless steel EN 10088-2
Valve seat PTFE Graphite filling
Ball Stainless steel EN 10088-2
Stem seals EPDM O-rings
Characterizing disc AMODEL® AS-1145HS
ST2pb_12062014_en 7/28
ST2 Ball valves
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
ST2-05-2-05B 0.4 1/2" 15 0.36
ST2-05-2-07B 0.63 1/2" 15 0.36
ST2-05-2-1B 1 1/2" 15 0.36
ST2-05-2-2B 1.6 1/2" 15 0.36
ST2-05-2-3B 2.5 1/2" 15 0.36
ST2-05-2-5B 4.0 1/2" 15 0.36
ST2-05-2-12B * 10 1/2" 15 0.36
ST2-75-2-5B 4.0 3/4" 20 0.45
ST2-75-2-7B 6.3 3/4" 20 0.45
ST2-75-2-12B * 10 3/4" 20 0.45
ST2-1-2-7B 6.3 1" 25 0.82
ST2-1-2-12B 10 1" 25 0.82
ST2-1-2-19B * 16 1" 25 0.82
ST2-125-2-12B 10 1-1/4" 32 1.04
ST2-125-2-19B 16 1-1/4" 32 1.04
ST2-125-2-29B * 25 1-1/4" 32 1.04
ST2-150-2-19B 16 1-1/2" 40 1.73
ST2-150-2-29B 25 1-1/2" 40 1.73
ST2-150-2-47B * 40 1-1/2" 40 1.73
ST2-2-2-29B 25 2" 50 2.3
ST2-2-2-47B 40 2" 50 2.3
ST2-2-2-74B * 63 2" 50 2.3
* Ball valves without control disc are recommended for on/off application.
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Technical description
ST2 Ball valves
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
ST2-05-3-05B 0.4 1/2" 15 0.57
ST2-05-3-07B 0.63 1/2" 15 0.57
ST2-05-3-1B 1 1/2" 15 0.57
ST2-05-3-2B 1.6 1/2" 15 0.57
ST2-05-3-3B 2.5 1/2" 15 0.57
ST2-05-3-5B 4.0 1/2" 15 0.57
ST2-05-3-12B * 10 1/2" 15 0.57
ST2-75-3-5B 4.0 3/4" 20 0.68
ST2-75-3-7B 6.3 3/4" 20 0.68
ST2-75-3-12B * 10 3/4" 20 0.68
ST2-1-3-7B 6.3 1" 25 1.25
ST2-1-3-12B 10 1" 25 1.25
ST2-1-3-19B * 16 1" 25 1.25
ST2-125-3-12B 10 1-1/4" 32 1.93
ST2-125-3-19B 16 1-1/4" 32 1.93
ST2-125-3-30B * 25 1-1/4" 32 1.93
ST2-150-3-19B 16 1-1/2" 40 2.84
ST2-150-3-30B 25 1-1/2" 40 2.84
ST2-150-3-47B * 40 1-1/2" 40 2.84
ST2-2-3-30B 25 2" 50 3.7
ST2-2-3-47B 40 2" 50 3.7
ST2-2-3-74B * 63 2" 50 3.7
* Ball valves without characterizing disc can be used as mixing valves or diverting valves
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ST2 Ball valves
Technical description
3.2 Technical specifications for the electric actuator
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.
Table 4 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 4 4 3
Manual operation Yes Yes No
Voltage AC 24 V AC +25/-20% 24 V AC +25/-20% 24 V AC ±20%
24 V DC +20%/-10%
2-Point - - 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] 72 72 90 s
< 25 s Spring return
Turning angle range 93° +/- 3° 93° +/- 3° 95° Mechanical
Connected wattage 2.1 VA 2.1 VA 4.7 VA
Effective direction - Switchable A = Clockwise
B = Counter clockwise
Operation cycles 100 000 full cycles 100 000 V full cycles 60 000 full cycles
Positioning 2 500 000 times under full load
2 500 000 times under full load
1 500 000 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...+66°C -29°C...+66°C -40°C...+85°C 95% rH
Ambient temperature -20°C...+60°C -20°C...+60°C -30°C...+60°C 90% rH
10/28 ST2pb_12062014_en
Technical description
ST2 Ball valves
Actuator order-number V24-35-P VAM24-35-P VAMS24-27
Moisture 90%, Non-condensing 90%, Non-condensing 0...90%, Non-condensing
Fluid temperature
Standard -30°C...+100°C -30°C...+100°C -30°...+100°C
WithTemperature adapter (TA)
-30°C...+140°C -30°C...+140°C -30°C...+140°C
Saturated steam (103 kPa) mit TA
...+121°C ...+121°C ...+121°C
only with TA
Weight In Kg 0.5 0.5 0.9
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 8 8 8
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 93° 93° 95° Mechanical
Connected wattage 7.5 VA 7.5 VA 7.9 VA
Effective direction - Switchable A = Clockwise
B = Counter clockwise
Operation cycles 60 000 full cycles 60 000 full cycles 60 000 full cycles
Positioning
1 500 000 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
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ST2 Ball valves
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...+85°C 95% rH
Ambient temperature -20°C...+50°C -20°C...+50°C -40°C…+60°C 90% rH
Moisture 0...95%, Non-condensing 0...95%, Non-condensing 0...90%, Non-condensing
Fluid temperature
Standard -30°C...+140°C -30°C...+140°C -30°...+100°C
WithTemperature adapter (TA)
NA NA -30°C...+140°C
(VAMS24-70-TA)
Saturated steam (103 kPa) mit TA
...+121°C Without TA
...+121°C Without TA
...+121°C Only with TA
Weight In Kg 1.1 1.1 1.6
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.
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Technical description
ST2 Ball valves
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 Actuator order numbers for fluid temperatures up to 140°C
V24-35-P
V24-35-P- TA
VAM24-35-P
VAM24-35-P-TA
D24-70 DM24-70 VAMS24-27
VAMS24-27-TA
VAMS24-70
VAMS24-70-TA
Standard Spring return
Function 2/3-Point Proportional 2/3- Point Proportional Proportional Proportional
Part number Kvs DN
ST2-05-2-05B 0.4 15
ST2-05-2-07B 0.63 15
ST2-05-2-1B 1 15
ST2-05-2-2B 1.6 15
ST2-05-2-3B 2.5 15
ST2-05-2-5B 4 15
ST2-05-2-12B 10 15
ST2-75-2-5B 4 20
ST2-75-2-7B 6.3 20
ST2-75-2-12B 10 20
ST2-1-2-7B 6.3 25
ST2-1-2-12B 10 25
ST2-1-2-19B 16 25
ST2-125-2-12B 10 32
ST2-125-2-19B 16 32
ST2-125-2-29B 25 32
ST2-150-2-19B 16 40
ST2-150-2-29B 25 40
ST2-150-2-47B 40 40
ST2-2-2-29B 25 50
ST2-2-2-47B 40 50
ST2-2-2-74B 63 50
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 Kvs combined with a proportional actuator for fluid temperatures of up to 140°C
ST2-75-2-12B/VAM24-35-P-TA
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ST2 Ball valves
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 Actuator order numbers for fluid temperatures up to 140°C
V24-35-P
V24-35-P-TA
VAM24-35-P
VAM24-35-P-TA
D24-70 DM24-70 VAMS24-27
VAMS24-27-TA
VAMS24-70
VAMS24-70-TA
Standard Spring return
Function 2/3-Point Proportional 2/3- Point Proportional Proportional Proportional
ST2-05-3-05B 0.4 15
ST2-05-3-07B 0.63 15
ST2-05-3-1B 1 15
ST2-05-3-2B 1.6 15
ST2-05-3-3B 2.5 15
ST2-05-3-5B 4 15
ST2-05-3-12B 10 15
ST2-75-3-5B 4 20
ST2-75-3-7B 6.3 20
ST2-75-3-12B 10 20
ST2-1-3-7B 6.3 25
ST2-1-3-12B 10 25
ST2-1-3-19B 16 25
ST2-125-3-12B 10 32
ST2-125-3-19B 16 32
ST2-125-3-30B 25 32
ST2-150-3-19B 16 40
ST2-150-3-30B 25 40
ST2-150-3-47B 40 40
ST2-2-3-30B 25 50
ST2-2-3-47B 40 50
ST2-2-3-74B 63 50
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 Kvs combined with a proportional spring-return actuator for fluid temperatures of up to 140°C
ST2-125-3-19B/VAMS24-70-TA
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Technical description
ST2 Ball valves
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
Actuator flange as per ISO 5211, F04
Installation instructions are with delivery
3.6 Pressure Equipment Directive (PED)
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 COV0512853/1
ST2pb_12062014_en 15/28
ST2 Ball valves
Flow diagram and curve characteristic
4 Flow diagram and curve characteristic
4.1 Kvs diagram
The following diagram shows the flow KVS at a differential pressure of 100 kPa across the valve and a water temperature of 5°C to 30°C.
Fig. 2 Kvs flow diagram
For the recommended maximum pressure drop ∆pv 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)
0,01
0,1
1
10
100
1
10
10
0
10
00
24
0
34
0
60
0
∆p100[kPa]
𝑉 1
00[m
³/h]
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Drawings and dimensions
ST2 Ball valves
4.2 Flow characteristic
ST2 ball valves have in their controlled flow, a modified equal percent flow characteristic that is based on VDI 2176.
Fig. 3 Flow characteristic digram valves with control disc
5 Drawings and dimensions
5.1 ST2 two-way and three-way ball valves
E
B
F FPortMarking
G
B
E
C C
Port Marking = fittings code
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 15 17 31 67 9 33 DN 20 17 31 75 9 38 DN 25 19 33 92 9 46 DN 32 26 44 109 9 54 DN 40 29 48 119 9 59 DN 50 37 53 139 9 74
* Only for three-way valves
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ST2 Ball valves
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.
A
89Clearance Required
71
Port MarkingLocations
140
D
A
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 15 98 17 31 129 64 9 32 DN 20 98 17 31 133 71 9 36 DN 25 100 19 33 141 87 9 43
* Only for three-way valves
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Drawings and dimensions
ST2 Ball valves
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.
89Clearance Required
71
Port MarkingLocations
140
D
A
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 135 17 31 129 64 9 32 DN 20 +TA 135 17 31 133 71 9 36 DN 25 +TA 137 19 33 141 87 9 43
* Only for three-way valves
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ST2 Ball valves
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 15 160 17 31 67 33 DN 20 160 17 31 75 38 DN 25 161 19 33 92 46 DN 32 173 26 44 109 54 DN 40 177 29 48 119 59 DN 50 182 37 53 139 74
* Only for three-way valves
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Drawings and dimensions
ST2 Ball valves
5.5 DN 15 to DN 25 ball valves with VAMS24-27xx, 3 Nm spring return actuators
A
Port MarkingLocations
82
D
A
89Clearance Required
73
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 15 117 17 31 177 67 9 33 DN 20 117 17 31 181 75 9 38 DN 25 119 19 33 190 92 9 46
* 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 152 17 31 177 67 9 33 DN 20 +TA 152 17 31 181 75 9 38 DN 25 +TA 154 19 33 190 92 9 46
* Only for three-way valves
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ST2 Ball valves
Drawings and dimensions
5.6 DN 32 to DN 50 ball valves with VAMS24-70xx, 8 Nm spring return actuators
99 73
Port M arkingLocations
89Clearance Required
A
F
C
G BE
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 32 195 26 44 184 109 9 54 DN 40 200 29 48 189 119 9 59 DN 50 204 37 53 195 139 9 77
* 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 230 26 44 184 109 9 54 DN 40 +TA 235 29 48 189 119 9 59 DN 50 +TA 239 37 53 195 139 9 77
* Only for three-way valves
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Drawings and dimensions
ST2 Ball valves
5.7 Electrical diagrams
5.8 V24-35-P (-TA)
1 2 3
BK RD OG
24 V AC 50/60 Hz
~
5.9 VAM24-35-P (-TA)
1 2 3 4
BK RD GY OG
24 V AC 50/60 Hz24 V DC
24 V=/~
0(2) .. 10 V DC
0(2) .. 10 V DC
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ST2 Ball valves
Drawings and dimensions
5.10 D24-70
FactorySettings
=
1 2 3
24 V AC/DC~- +
1 2 3
24 V AC/DC~- + 5.11 DM24-70
1 2 3 4 5 6
24 VAC/DC
~- +
FactorySettings
0 ..
10
V0
..
20
mA
2 ..
10
V4
..
20
mA
=
1 2
ON
1 2
ON
12
ON
012
3 54
67
8
O
2
34
5 76
89
10
S
0
12
3 54
67
8
O
2
34
5 76
89
10
S
0
12
3 54
67
8
O
2
34
5 76
89
10
S
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Drawings and dimensions
ST2 Ball valves
5.12 VAMS24-27 (-TA) and VAMS24-70 (-TA)
A 0-100-102-102-10
CAL
B0-100-102-102-10
CAL
1 2 3 4
24 VAC/DC
~- +
1 2 3 4
24 VAC/DC
~- +
Control 0(2) .. 10 V and 0(4) .. mA
1 2 3 4
24 VAC/DC
~- +
1 2 3 4
Master-Slave
1 2 3 4
24 VAC/DC
~- +
On/Off
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ST2 Ball valves
Drawings and dimensions
5.13 VAMS24xxx actuator calibration possibilities
Fig. 342: Control behavior and the calibration of VA9203 / VA9208 actuators
5.14 Calibration
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)
Installation side
Input signal
Increasing
Decreasing
Direction Feedback
Direct Acting
Reverse Acting
(*) 0 position is for spring return
Factory setting
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Declaration of conformity
ST2 Ball valves
6 Declaration of conformity
6.1 Declaration of Conformity PED ST2 Ball Valves
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ST2 Ball valves
Declaration of conformity
6.2 Declaration of Conformity CE Actuator for Ball Valves ST2
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General information
ST2 Ball valves
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.