Bermad - Model 718-03 - Electric Control Valve

An electronic control valve that combines the advantages of an excellent modulating, line pressure driven, hydraulic control valve with those of electronic control. In response to signals from the electronic controller, the valve changes its opening position per preset values programmed into the controller. Both the valve’s opening and closing speeds are controllable and on-site adjustable. BERMAD 700 SIGMA EN/ES series valves are hydraulic, oblique pattern, globe valves with a raised seat assembly and double chamber unitized actuator, that can be disassembled from the body as a separate integral unit. The valve's hydrodynamic body is designed for an unobstructed flow path and provides excellent and highly effective modulation capacity for high differential pressure applications. The valves are available in the standard configuration or with an Independent Check Feature code “2S”. The 700 SIGMA EN/ES Valves operate under difficult operation conditions with minimal cavitation and noise. They meet the size and dimensions requirements of various standards.

Features and Benefits

• Designed to - stand up to the toughest conditions
  • Excellent anti-cavitation properties
  • Wide flow range
  • High stability and accuracy
  • Drip tight sealing
• Double chamber design
  • Moderated valve reaction
  • Protected diaphragm
  • Optional operation in very low pressure
  • Moderated closing curve
• Flexible design - Easy addition of features
• Obstacle-free flow pass
• V-Port Throttling Plug (Optional) - Very stable at low flow
• Compatible with various standards
• High-quality materials
• In-line serviceable - Easy maintenance

Major Additional Features

• Full powered opening and closing – 718-03-B
• Valve position transmitter – 718-03-Q
• Downstream over pressure guard – 718-03-48
• Relief override – 718-03-3Q
• Independent check feature – 718-03-2S
• Hydraulic check valve – 718-03-20
• Flow over the seat (fail-safe close) – 718-03-O

Typical Installation

Main Valve

Valve Patterns: “Y” (Globe)

Size Range: 50-600mm

Pressure Rating: 16 bar - with higher pressure options available.

End Connections:
EN: 50-400mm - Flanged

ES: 65-600mm - Flanged

Plug Types: Flat disc, V-port, Cavitation cage

Temperature Rating: 60°C, for Coldwater applications

Optional higher temperature: Available on request

Standard Materials:

Body & actuator: Ductile Iron

Bolts, nuts & studs: Stainless Steel

Internals: Stainless Steel, Tin Bronze & Coated Steel

Diaphragm: Fabric-reinforced synthetic rubber

Seals: Synthetic rubber

Coating: Dark blue Fusion bonded epoxy

Control System

Standard Materials:

Accessories: Stainless Steel, Bronze & Brass

Tubing: Stainless Steel or Copper

Fittings: Stainless Steel or Brass

Solenoids Standard Materials:

Body: Brass or Stainless Steel

Elastomers: NBR or FPM

Enclosure: Molded Epoxy

Solenoid Electrical Data:

Voltages:

(AC): 24, 110-120, 220-240, (50-60Hz)

(DC): 12, 24, 110, 220

Power Consumption:

(AC): 30VA, inrush; 15VA (8W), holding or 70VA, inrush: 40VA (17.1W), holding

(DC): 8-11.6W Values might vary according to specific solenoid models.

Notes

• Inlet Pressure, Outlet Pressure, and Flow-rate are required for optimal sizing and
  cavitation analysis
• Recommended continuous flow velocity: 0.1-6.0 m /sec.
• Minimum operating pressure: 0.7 bar. For lower pressure requirements
  consult Deeco.

For technical specifications (Flow charts, valve characteristics, dimensions, etc.) - Please refer to the Engineering Data:
Bermad - Model 700 - Sigma EN/ES - Engineering Data