[1] Double Chamber Actuator

• Actuator assembly can be removed as one integral unit.
• Simple on-site conversion to single-chambered.
• Same valve body accepts both actuators (Diaphragm and Piston.

[2] Diaphragm Assembly

The flexible, unshaped, EPDM diaphragm is supported over the majority of its surface. Diaphragm load is limited only to the stretching forces applied to the active area.

[3] Piston Assembly

Vented lower chamber provides differential piston principle of operation and air cushioning. Constant active area together with the sturdy construction and un obstructed long travel ensures stable and accurate regulation. The "shaft diameter" central guiding and the dynamic piston-seal reduce and jamming risk.

[4] Cover Plug

Enables on-site retrofit of:

• Indicator [4a]: for visual valve position indication.
• Limit Switch: for signaling open/close valve position with NC and NO contacts.
• Position Transmitter: For analog transmission of valve position

[5] Inherent Separation Partition

The inherent separation includes the bearing [5A], which provides complete central guiding for the valve moving assembly. The separation partition separates the lower control chamber from the flow in both the single-chambered, and the double chambered configurations.

[6] Spring

Required for single-chambered configurations. Superfluous for double-chambered configurations(unless check feature is required)

[7] Seal Disc Assembly

Self-aligning, seal disk assembly provides balanced, free movement and a resilient seal for perfect, drip-tight sealing, It enables using several variations of seals and plugs for a wide range of applications and working conditions

[8] Seat

Raised, replaceable in-line and on-site.

[9] Wide Body ("Y" or Angle Pattern)

Hydro-dynamically designed for efficient flow with minimal pressure loss and excellent resistance to cavitation, Full bore, valve port area clear of obstructions; no ribs or stem guides. Increase capacity by 25% over standard globe valves.

[10] End Connections

Conforms to pressure ratings and standards of: ANSI, ISO, JIS, BS, and others.