Submittal Sheet

ManualsBrandsBray ManualsDampers3/4" 2-Way Stainless Steel Ball Valve (5 Cv)

S2-1

www.braycommercialdivision.com

13788 West Road, Suite 200A

Houston, Texas 77041

BCDSales@Bray.com

Phone: 1-888-412-2729

S2-1

Features and Beneﬁts

Meets any HVAC application

• 580 PSI (PN 40) Body Rating

• 200 PSI Close-Off Rating

Worry-free at high differential pressures

Energy efﬁcient

• ANSI Class IV (<.01%) Leakage

Minimizes actuator costs/extends life

• Low Torque

Superior control accuracy and stability

• Greater than 500:1 Rangeability

Year

Warranty

Year

Warranty

The Soft Touch 2 (ST2) Series characterized ball valves provide

accurate and cost effective control of a wide range of equipment

in HVAC applications.

The ST2 series features a forged brass 2-piece body with Stainless

Steel balls and stems for water temperature up to 284˚F (140˚C)

and saturated steam up to 15 PSI.

The Amodel® Flow Characterizing Disk maintains equal per-

centage Flow Characteristics for optimum temperature control.

The blowout-proof stem and mounting ﬂange, combined with

an inovative double O-Ring stem seal and self-centering stem

bushing design provides quick and easy electric actuator ﬁeld

mounting while ensuring long life and leak-free valve

performance.

Graphite reinforced PTFE seats backed with EPDM O-Rings

signiﬁcantly reduce operating torque allowing the use of the

most economical actuator to provide the torque required for the

application. All valve and actuator assemblies provide 200

psig (1,379 kPa) close-off pressure while ensuring operation

after long idle periods. Because of their cost-effective, reliable

design, ST2 Series Ball Valves are maintenance free.

SoftTouch 2 Series

Characterized Ball Valves

2-Way & 3-Way • 1/2”- 2”

12/07/21

DOCUMENT

Specications

Cv Chart

Cut Away View

Dimensions

Close O Charts

CONTENTS

Summary of content (16 pages)

PAGE 1
CONTENTS DOCUMENT SoftTouch 2 Series Characterized Ball Valves Specifications Cv Chart Cut Away View Dimensions Close Off Charts © 2021 Bray International, Inc. 12/07/21 2-Way & 3-Way • 1/2”- 2” The Soft Touch 2 (ST2) Series characterized ball valves provide accurate and cost effective control of a wide range of equipment in HVAC applications.
PAGE 2
SoftTouch 2 - Specifications Technical Specifications Service Valve Body Pressure/ Temperature Rating Hot Water, Chilled Water, 50/50 Glycol Solutions 15 PSIG (103 kPa) Saturated Steam for HVAC Systems Cold Working Pressure (CWP) Water (with Standard Mounting) Water (with “High Temp” Mounting) Steam (with “High Temp” Mounting) Maximum Recommended Operating Pressure Drop Flow Characteristics 580 PSI (PN 40) -22˚F to 203˚F (-30˚C to 95˚C) -22˚F to 284˚F (-30˚C to 140˚C) 15 PSIG (103 kPa) at 284˚F (140˚C)
PAGE 3
SoftTouch 2 - Piping and Installation Tips 2-Way Piping Schematics Port A Return Port B Supply Typical Two-Way Ball Valve Application Note : Mount the valve downstream from the coil to minimize heat transfer to the actuator. 2-Way - Default Configuration for ST2 Ball Valves Valve Position at Actuator Position 2-Way Non Spring Return 2-Way Spring Return N.O 2-Way Spring Return N.C.
PAGE 4
SoftTouch 2 - Exploded View - Direct Mount Actuators Screw Identification Tag: Model Number, Purchase Order Number Date of Purchase Service Tag Position Indicator Handle Drive Pin Actuator Actuator Bracket: Low Profile. Valve Body: Forged Brass. S2-4 S2-4 BCDSales@Bray.com Phone: 1-888-412-2729 www.braycommercialdivision.
PAGE 5
SoftTouch 2 - Exploded View - Universal Mount (D-Series ) Actuators D-Series Actuator Screw Screws (2) Identification Tag: Model Number, Purchase Order Number, Date of Purchase Service Tag Anti Rotation Bracket Wing Nut Height Extenders: Not Required for 1/2” and 3/4” Stainless Steel Drive Shaft Pin Spring Washer (2) Hex Nut (2) BCDSales@Bray.com Phone: 1-888-412-2729 Valve Body: Forged Brass. www.braycommercialdivision.
PAGE 6
SoftTouch 2 - 2-Way Dimensions VAS27, VA35 & D53-Series 4-1/4” (108mm) (D Series) 3-1/4” (82mm) (VA Series) 27 Series 35 & 53 Series Shown without Thermal Barrier D A B C ST2 Dimensions - 2-Way - VAS27 Series Direct Mount ST2 VALVE MODEL # Connection PREFIX ST2 Size-Way-Cv in. mm ST2-05-2-… 1/2 15 ST2-75-2-… 3/4 20 ST2-1-2-… 1 ST2-125-2-… ST2-150-2-… ST2-2-2-… Please reference the illustration Available Cv’s A in. 0.46, 0.73, 1.2, 1.9, 2.9, 4.7, 11.7* 2-1/2 B C mm in.
PAGE 7
SoftTouch 2 - 3-Way Dimensions Universal Mount D-Series Direct Mount VA-Series B E C B E Shown without Thermal Barrier C 4-1/4” 4-1/4" (108) (108 mm) D D A A ST2 Dimensions - 3-Way Universal Mount Direct Mount ST2 VALVE MODEL # Connection PREFIX ST2 Size-Way-Cv in. mm ST2-05-3-… 1/2 15 ST2-75-3-… 3/4 20 ST2-1-3-… 1 25 Please reference the illustration Available Cv’s A in. 1.2, 1.9, 2.9, 4.7, 11.7* 1-1/4 B C in. mm in. mm in. mm in.
PAGE 8
SoftTouch 2 - Valve Sizing Steps STEP ONE Determine the designed Cv by using the following equation. Q G Cv = Where Q G = Flow in gallons per minute (GPM) required to pass through the valve = Specific gravity of fluid * = Designed pressure drop across the valve in PSI = Flow coefficient EXAMPLE NOTES Cv The Specific Gravity of 50% Water (Compound 1) and 50% Ethylene Glycol Solution (Compound 2): 1 Specific Gravity = 0.5 0.5 = 1.05 + 1.0 1.
PAGE 9
SoftTouch 2 - GPM - Quick Reference Sizing and Selection Table 2-WAY - GPM - Quick Reference Sizing Chart VALVE SIZE MODEL NO. ST2-05-2-005 ST2-05-2-007 ST2-05-2-01 1/2” ST2-05-2-02 ST2-05-2-03 ST2-05-2-05 ST2-05-2-12* ST2-75-2-05 3/4” ST2-75-2-07 ST2-75-2-12* ST2-1-2-07 ST2-1-2-12 1” ST2-1-2-19* ST2-125-2-12 1-1/4” ST2-125-2-19 ST2-125-2-29* ST2-150-2-19 1-1/2” ST2-150-2-29 ST2-150-2-47* ST2-2-2-29 ST2-2-2-47 2” ST2-2-2-74* Cv 1.0 0.46 0.73 1.2 1.9 2.9 4.7 11.7 4.7 7.4 11.7 7.4 11.7 18.7 11.7 18.7 29.
PAGE 10
SoftTouch 2 - Adjusted Cv Charts for Piping Geometry Factor(Fp) 2-WAY - PIPING GEOMETRY CHART - Adjusted Cv Valve Size 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” Pipe Size Valve Model Number Nominal Cv 3/4” 1” 1-1/4” 1-1/2” 2” 2-1/2” 3” ST2-05-2-005 ST2-05-2-007 ST2-05-2-01 0.46 0.73 1.2 .46 .73 1.2 .46 .73 1.2 ------- ------- ------- ------- ------- ST2-05-2-02 1.9 1.9 1.9 --- --- --- --- --- ST2-05-2-03 2.9 2.8 2.8 --- --- --- --- --- ST2-05-2-05 4.7 4.4 4.
PAGE 11
SoftTouch 2 - 2-Way - Non Spring Return Close-Off Chart (PSI) 2-WAY - Non Spring Return - Close-Off Chart (PSI) Actuators Control Input 2-wire On/Off 24 VAC On/Off or Floating • Modulating 3-wire On/Off or Floating 3wire On/Off or Floating with Time Out Proportional with Feedback Auxiliary Switches Wiring Connections Enclosed Terminal Strip Conduit Size - Flex(F)/NPT(N) 3/8 F 3/8 F 1/2 N 3/8 1/2 N VA2435-P VA2435-PTO D2470-A VAM2435-P DM2470-A 200 200 200 200 200 200 200 200 200 200 200 20
PAGE 12
SoftTouch 2 - 2-Way - Spring Return Close-Off Chart (PSI) 2-WAY - Spring Return - Close-Off Chart (PSI) Actuators Control Input 120 VAC On/Off 24 VAC On/Off 24 VAC Floating Modulating 2-wire On/Off 3-wire or Floating Proportional with Feedback Optional Auxiliary Switches Available Wiring Connections NPT Conduit Fitting 1/2 1/2 1/2 1/2 VASU20-27 VAS24-27 VAS24-27-T VAMS24-27 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200
PAGE 13
SoftTouch 2 - 3-Way - Non Spring Return Close-Off Chart (PSI) 3-WAY - Non Spring Return - Close-Off Chart (PSI) Actuators Control Input 2-wire On/Off 24 VAC Floating • Modulating 3-wire On/Off or Floating 3-wire on/off or Floating with Time Out Proportional with Feedback Optional Auxiliary Switches Available Wiring Connections Enclosed Terminal Strip Conduit Size - Flex(F)/NPT(N) 3/8 F 3/8 F 1/2 N 3/8 F VA2435-P VA2435-PTO 200 200 200 200 200 200 200 200 200 200 200 200 200 200 200
PAGE 14
SoftTouch 2 - 3-Way - Spring Return Close-Off Chart (PSI) 3-WAY - Spring Return - Close-Off Chart (PSI) Actuators Control Input 120 On/Off 24 VAC On/Off 24 VAC Floating Modulating 2-wire On/Off 3-wire or Floating Proportional with Feedback Optional Auxiliary Switches Available Wiring Connections Conduit Size - Flex(F)/NPT(N) Actuator Model No. Flow Coefficient SIZE NPT Cv Kv 1/2” 3/4” 1” 1-1/4” 1-1/2” 2” 1.2 (0.7) 1.9 (1.2) 2.9 (1.9) 4.7 (2.9) 11.7* (5.8) 4.7 (2.9) 7.4 (4.7) 11.7* (5.8) 7.
PAGE 15
SoftTouch 2 - Valve Comparison Chart The Benefits of Ball Valves in Commercial Applications Ball valves are generally a superior alternative to globe valves where precise control is required. Ball valves tend to offer higher close-offs and rangeability ratios while providing smaller size, weights and costs. Ball valves also offer more Cv options in order to more closely match your specifications. Bray offers two distinct lines that come in both threaded and flanged sizes.
PAGE 16
BRAY INTERNATIONAL PRIMARY SALES AND SERVICE LOCATIONS USA Houston, Texas CHINA Hangzhou, Zhejiang MEXICO Zapopan, Jalisco RUSSIA Moscow AFRICA Johannesburg COLOMBIA Bogotá MIDDLE EAST Dubai SINGAPORE Ubi Techpark BENELUX Heerhugowaard FRANCE Voiron PACIFIC Melbourne, Australia SOUTH KOREA Seoul BRAZIL Paulinia, Sao Paulo GERMANY Krefeld PERU Lima SOUTHEAST ASIA Malaysia CANADA Montreal INDIA Vadodara POLAND Oświȩcim UNITED KINGDOM Glasgow CHILE Santiago ITALY Milano FLOW-TEK RITE C