SERIES 66/66A

Mining

SERIES 66/66A

POWER ACTUATED BASIC CONTROL VALVE

The Basic Control Valve 66 Globe and 66 Angle is a full port engineered valve. Equipped with two diaphragm chambers, sealed from each other by the diaphragm, and isolated from the valve’s main flow passage by an intermediate plate. By pressurizing one control chamber while simultaneously venting the other, the valve is positively powered to both open and close. A large majority of OCV control valves have a single diaphragm chamber and operate off line pressure; more specifically, off the pressure differential between the inlet and outlet ports of the valve. There are, however, conditions that do not lend themselves to such an operation. For example, adequate differential to properly actuate the valve may not exist, the liquid being handled may be extremely dirty or otherwise unsuitable, or design of the system may, for some reason, make it preferable to use an outside power source.

FEATURES

  • Operates automatically off line pressure or independent pressure source.
  • Heavy-duty, nylon-reinforced diaphragm isolates top chamber operating pressure from bottom chamber line pressure.
  • Rectangular-shaped, soft seat seal provides drip-tight Class VI closure.
  • Diaphragm assembly guided center and bottom.
  • Throttling seat retainer for flow and pressure stability.
  • Easily maintained without removal from the line.
  • Diaphragm replaced without removing internal stem assembly.
  • Replaceable seat ring.
  • Alignment pins assure proper reassembly after maintenance.
  • Center-tapped bonnet facilitates installation of position indicator or valve-actuated switches.
  • Ductile iron and steel valves are epoxy coated inside and out, for maximum corrosion protection.
  • Valves are factory tested.
  • Valves are serial numbered and registered to facilitate replacement parts and factory support.

POWER ACTUATED BASIC CONTROL VALVE

The Basic Control Valve 66 Globe and 66 Angle is a full port engineered valve. Equipped with two diaphragm chambers, sealed from each other by the diaphragm, and isolated from the valve’s main flow passage by an intermediate plate. By pressurizing one control chamber while simultaneously venting the other, the valve is positively powered to both open and close. A large majority of OCV control valves have a single diaphragm chamber and operate off line pressure; more specifically, off the pressure differential between the inlet and outlet ports of the valve. There are, however, conditions that do not lend themselves to such an operation. For example, adequate differential to properly actuate the valve may not exist, the liquid being handled may be extremely dirty or otherwise unsuitable, or design of the system may, for some reason, make it preferable to use an outside power source.

FEATURES

  • Operates automatically off line pressure or independent pressure source.
  • Heavy-duty, nylon-reinforced diaphragm isolates top chamber operating pressure from bottom chamber line pressure.
  • Rectangular-shaped, soft seat seal provides drip-tight Class VI closure.
  • Diaphragm assembly guided center and bottom.
  • Throttling seat retainer for flow and pressure stability.
  • Easily maintained without removal from the line.
  • Diaphragm replaced without removing internal stem assembly.
  • Replaceable seat ring.
  • Alignment pins assure proper reassembly after maintenance.
  • Center-tapped bonnet facilitates installation of position indicator or valve-actuated switches.
  • Ductile iron and steel valves are epoxy coated inside and out, for maximum corrosion protection.
  • Valves are factory tested.
  • Valves are serial numbered and registered to facilitate replacement parts and factory support.