| Brand: | Bermad |
| Category: | Control Valves, 700 Series |
| Size Range: | 50-600mm |
| Connection: | EN: 50-400mm - Flanged ES: 65-600mm - Flanged |
| Engineering Data: |
Product Description
A double-chambered, hydraulically operated, solenoid-controlled valve that either opens fully, regardless of valve differential pressure or shuts off in response to an electric signal. This valve is especially useful in very low-pressure applications and in corrosive fluid systems that are controlled by external freshwater or compressed air. Normally open (NO), normally closed (NC) or LATCH models are available. 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 - Very stable at low flow
- Compatible with various standards
- High-quality materials
- In-line serviceable - Easy maintenance
Major Additional Features
- Opening & Closing speed control – 710-03-B
- Closing & opening signal (limit switch) – 710-BSS
- Relief override – 710-3Q-B
- Flow over the seat (fail-safe close) – 710-BO
- Closing surge prevention – 710-49-B
- Independent Check Feature – 710-2S
Typical Installation
Bermad - Model 710B - 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: 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
Solenoid 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.
- Recommended maximum flow velocity: 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.
