Valworx 587807 explosion proof soft seated butterfly valve is used in environments where flammable gases may be present. On-off control of water and other media compatible with the materials of construction. Wafer style valve sandwich mounts between customer supplied standard ANSI/ASME Class 125/ 150 or other international standard flanges. Standard unit is power-to-open and power to close, stays in last known position with loss of power. On receipt of a continuous voltage signal, the motor runs and via an all metal self-locking gear drive rotates the disc one quarter turn. The motor is automatically stopped by internal cams striking limit switches at both open and closed positions. On receipt of a reversing continuous signal, the motor turns in the opposite direction reversing the valve position.
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 coatingPrecision machined 316 Stainless Steel discUnique wave line seat design reduces the torque and extends the seal lifePTFE/graphite stem bearings with V-ring sealsTwo piece stem/disc construction enhances flow and reduces turbulenceStandard ISO5211 actuator to valve direct mountingLeak proof flange seals included as part of valve seat
Electric Actuator Standard FeaturesExplosion proof rated for UL Class I Div I Groups C & D, Ex db IIC T5 Gb Class 1 Zone 1, AEx db IIC T5 GbRugged Type 4X weatherproof aluminum alloy housingVisual valve position indicatorManual overrideHeavy duty motor with overload protectionTwo auxiliary limit switches to confirm valve positionSelf-locking all metal gear drive, no additional brake requiredCSA Listed per UL429 and CSA C22.2, CE mark as well as ExP ratings listed above
| Type | Explosion Proof Electric Actuated Wafer Butterfly Valve- On/Off |
|---|
| Voltage | 110 VAC 50/60 Hz |
|---|
| Current Rating | 0.63A (full load amps) |
|---|
| Cycle Time | 30 seconds per 90° rotation (no load) |
|---|
| Pipe Size | 6 inch (DN50) |
|---|
| Suitable Flanges | Mounts between ANSI /ASME B16.5 Class 150, B16.1 Class 121, EN1092 PN10, PN16, BS10 D, E, JIS B2239 10K, 16K |
|---|
| Flow Factor | Cv 2243 (Cv = number of GPM of 60 °F water at 1 psi pressure drop) |
|---|
| Pressure Rating | 232 PSI (16 Bar), 29 inHg vacuum |
|---|
| Valve Temperature Range | 0 to 248 °F (-30 to +120 °C) |
|---|
| Actuator Temperature Range | -13 to +131 °F (-25 to +55 °C) |
|---|
| Valve Body | Ductile iron, epoxy coating (seat facing acts as flange gasket) |
|---|
| Disc | 316 stainless steel |
|---|
| Disc Seat/Liner | NBR (Buna-N) |
|---|
| Shaft Seals | NBR (Buna-N) V-ring |
|---|
| Duty Cycle | 70% |
|---|
| Enclosure | Aluminum alloy, polyester painted, SS fasteners |
|---|
| Enclosure Rating | Type 4X (IP67) weatherproof |
|---|
| Electrical Connections | Two 1/2" NPT threaded ports. Requires Exp rated connector or pipe (not included). |
|---|
| Valve Position Confirmation | 2 x SPDT auxiliary limit switches 3A @ 121/210VAC, 30VDC resistive load |
|---|
| Manual Override | 5mm hex drive with protective cover |
|---|
| Motor Protection | Thermal overload |
|---|
| Anti-Condensation Heater | 4 watts thermostatically controlled |
|---|
| Approvals | UL Class I Div I Groups C & D, Ex db IIC T5 Gb Class 1 Zone 1, AEx db IIC T5 Gb |
|---|
Explosion Proof NPT Plug
Price: $22.94
Buy 3 or more for $20.65 each
