AV-1EC Sanitary Actuated Butterfly Valve, Electric Operation

Sanitary Actuated Butterfly Valve Description

The electric actuated butterfly valve uses a circular disc contained within a ring style body that sandwich mounts between pipe flanges, which rotates by a quarter turn by a central shaft with a seal typically created by the outer edge of the disc compressing a resilient rubber seal located within the ring, as the valve closes. Body styles are typically either wafer type or fully lugged and tapped to suit either metric or ANSI flanges, although double flanged or groove ended versions are available. Electrically actuated butterfly valves allow the position of the butterfly valve to be automatically (or motorized) controlled remotely whereas manually operated butterfly valves require human intervention at the physical location of the valve. Compared with the more traditional flanged gate valves, an actuated butterfly valve is lighter in weight making it easier to install, and offers more favorable pricing.

Sanitary Actuated Butterfly Valve Specification

Electric Actuator Standard Features

• Rugged ductile iron body with 3-layer epoxy/epoxy/PUR protective coating
• 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 the valve seat

Electric Actuator Standard Features

• Quarter turn operation with mechanical limits
• Rugged Type 4X weatherproof aluminum alloy housing
• Visual valve position indicator
• Manual override
• Heavy duty motor with overload protection
• Thermostatically controlled anti-condensation heater
• Two auxiliary limit switches to confirm valve position
• Self-locking all metal gear drive, no additional brake required

Sanitary Actuated Butterfly Valve Options

• Valve body and disc material can be AISI 304 or AISI 316L materials are available upon request.
• The seat and gasket can be EPDM, VMQ (Silicone), or Viton (FPM), all complying with FDA 21CFR177.2600.
• End connection can be butt-welded, sanitary tri-clamp, threaded, flanged, I-line, or others upon request.
• Handles: 4-position pull handle; multi-position handle with the plastic cover or in pure stainless steel.

Actuators to reach automatic operation: pneumatic stainless steel actuator (vertical type), the pneumatic aluminum actuator (horizontal type), and the electric actuator.

• NC operated: normally closed (fail closed)—air to open, spring to close
• NO operated: normally open (fail open)—air to close, spring to open
• AA operated: double acting—air to open, air to close

• Valve intelligent control: position sensor, C-top controller, C-top controller (AS-I)
• Standards: DIN, SMS, ISO / IDF, BS / RJT, and ASME / BPE

Electric Actuator Type

* Standard switch type (B)

Valve ON/OFF is conducted by switch circuit with outputting active contact signal which can show a fully open or fully closed state of the valves.

*Passive contact type (S)

Valve ON/OFF is conducted by switch circuit with outputting passive contact signal which can show a fully open or fully closed state of the valves.

*Position signal type (K)

The opening or closing operation is realized by switching “open” or “close” the circuit, outputting a relative group open or close degree current signals.

*Opening degree signal type (R)

The opening angle of valves is controlled by switch circuit, with potentiometer outputting resistance signal corresponding valves opening angle.

*Modulating type (A)

Intelligent regulation and control are conduct by receiving the standard signal 4-20mA. DC, 0-10V. DC or 1-5V. DC outputted by the computers of instruments standard feedback signal 4-20mA. DC is also outputted.