| 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 hydraulically operated control valve that controls reservoir filling and reservoir level. Reservoir filling is in response to a hydraulically controlled modulating vertical float that maintains a constant water level, regardless of fluctuating demand (can be used on reservoir intake or outtake according to application). 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
- Pressure sustaining – 753-67
- Flow control – 757-67-U
- Electric float backup – 750-67-65
- Independent Check Feature – 750-67-2S
Typical Installation
Bermad - Model 750-67 - 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 Cold water 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
Float Pilot Standard Materials: Body: Brass or Stainless Steel 316
Elastomers: Synthetic Rubber
Internal Parts: Stainless Steel 316 & Brass Lever System: Brass or Stainless Steel 316 Float: Plastic
Float Rod: Stainless Steel
Base Plate: Fusion Bonded Epoxy Coated Steel or Stainless Steel 316
Notes
- Each extension rod adds 560 mm. One extension rod is supplied.
- The extra counterweight is required if a second extension rod is used.
- If inlet pressure is below 0.5 bar or above 10 bar, consult Deeco.
- Inlet Pressure, Outlet Pressure, and Flow are required for optimal sizing.
- Recommended maximum flow velocity: 6.0 m /sec.
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.
