| Brand: | Bermad |
| Category: | Control Valves, 700 Series |
| Size Range: | 50-600mm |
| Connection: | EN: 50-400mm - Flanged ES: 65-600mm - Flanged |
| Engineering Data: |
Product Description
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. The valve is double chamber actuated and is powered to fully open and close even at very low pressure. Both the valve’s opening and closing speeds are controllable and onsite 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
- Valve position transmitter – 718-03-Q
- Relief override – 718-03-3Q
- Flow over the seat (fail-safe close) – 718-03-O
- Downstream over pressure guard – 718-03-48
Typical Installation
Bermad - Model 718-03B- Typical Installation
Technical Data
Operation
This drawing refers to 40-200 mm-sized valves only.
For other sizes please refer to the Model’s IOM
Main Valve
Valve Patterns: “Y” (Globe)
Size Range:
50-600mm
Pressure Rating: 25 bar.
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 model.
Notes
- Inlet Pressure, Outlet Pressure, and Flow-rate are required for optimal sizing and
cavitation analysis. - Recommended continuous flow velocity: 0.1-6.0m/sec.
- Minimum Operating Pressure: 0.2 bar. External operating pressure is recommended.
Technical Specifications
For technical specifications (Flow charts, valve characteristics, dimensions, etc.) - Please refer to the Engineering Data:
Bermad - Model 700 - Sigma EN/ES - Engineering Data
For Spare Parts & Repair Kits - Please refer to the base model:
Due to the wide range of options available and criteria for correct model selection, pricing and configuration are available on application only.
Please consult with Deeco engineers for more information.
