3" Explosion Proof Butterfly Valve, Wafer, EPDM, 110 VAC, EPS Positioner

Stock #: 587704
Brand: Valworx
Series: 5877
List Price: $1916.00
Price: $1,532.80
Buy 3 or more for $1,379.52 each
Usually Ships: Same Day
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Valworx 587704 explosion proof soft seated butterfly valve is used in environments where flammable gases may be present. Wafer style valve sandwich mounts between customer supplied standard ANSI/ASME Class 125/ 150 or other international standard flanges. The EPS- Electronic Positioning System provides an accurate valve positioning function whereby the movement of the actuator is controlled by a 4-20mA input control signal. Any change in the control input signal results in a corresponding and proportional change in the position of the disc. The internal microprocessor and closed loop feedback system continuously monitors and maintains accurate valve position. The valve will remain in the last known position with loss of electric power. EPS positioning module is self-calibrating and fully potted to help protect the electronics against vibration and moisture. Valve position can be monitored with the onboard analog output signal.

The valve is direct mounted to the actuator using the international standard ISO5211 mounting pad. Rugged unique integral motor/housing design provides higher torque in a very small package. Special wave line seat and disc shape, reduces the required torque and extends the life of the valve. Precision machined 316SS disc with two-piece stem (shaft) construction, enhances the flow capacity of the valve and reduces turbulence. The stem utilizes PTFE/graphite bearings with V-ring seals preventing leakage.

Explosion proof actuator certified for UL Class I Div I as well as ATEX specifications. Two auxiliary limit switches are supplied to confirm valve open and closed position.

Butterfly Valve Standard Features
  • Rugged ductile iron body with epoxy coating
  • Precision machined 316 Stainless Steel disc
  • Unique wave line seat design reduces the torque and extends the seal life
  • PTFE/graphite stem bearings with V-ring seals
  • Two piece stem/disc construction enhances flow and reduces turbulence
  • Standard ISO5211 actuator to valve direct mounting
  • Leak proof flange seals included as part of valve seat

  • Electric Actuator Standard Features
  • Explosion proof rated for UL Class I Div I Groups C & D, Ex db IIC T5 Gb Class 1 Zone 1, AEx db IIC T5 Gb
  • EPS-Positioner controlled by a 4-20mA input
  • Rugged Type 4X weatherproof aluminum alloy housing
  • Visual valve position indicator
  • Manual override
  • Heavy duty motor with overload protection
  • Analog output signal to confirm valve position
  • Self-locking all metal gear drive, no additional brake required
  • CSA Listed per UL429 and CSA C22.2, CE mark as well as ExP ratings listed above
  • Type Explosion Proof Electric Actuated Wafer Butterfly Valve- Positioner
    Voltage110 VAC 50/60 Hz
    Current Rating0.27A (full load amps)
    Cycle Time20 seconds per 90° rotation (no load)
    Pipe Size3 inch (DN50)
    Suitable FlangesMounts between ANSI /ASME B16.5 Class 150, B16.1 Class 120, EN1092 PN10, PN16, BS10 D, E, JIS B2239 10K, 16K
    Flow FactorCv 470 (Cv = number of GPM of 60 °F water at 1 psi pressure drop)
    Pressure Rating232 PSI (16 Bar), 29 inHg vacuum
    Valve Temperature Range0 to 248 °F (-30 to +120 °C)
    Actuator Temperature Range-13 to +131 °F (-25 to +55 °C)
    Valve BodyDuctile iron, epoxy coating (seat facing acts as flange gasket)
    Disc316 stainless steel
    Disc Seat/LinerEPDM
    Shaft SealsEPDM V-ring
    Duty Cycle70%
    EnclosureAluminum alloy, polyester painted, SS fasteners
    Enclosure RatingType 4X (IP67) weatherproof
    Electrical ConnectionsTwo 1/2" NPT threaded ports. Requires Exp rated connector or pipe (not included).
    Valve Position Confirmation4-20mA output monitoring signal (same type as input signal)
    Manual Override5mm hex drive with protective cover
    Motor ProtectionThermal overload
    Anti-Condensation Heater4 watts thermostatically controlled
    ApprovalsUL Class I Div I Groups C & D, Ex db IIC T5 Gb Class 1 Zone 1, AEx db IIC T5 Gb
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