| Brand: | Bermad |
| Category: | Control Valves, 700 Series |
| Size Range: | 50-600mm |
| Connection: | 50 - 80mm - Threaded Female BSPT - Angle Pattern |
| Engineering Data: | |
| Other Options: |
Product Description
Hydraulically operated, diaphragm actuated quick pressure relief valve that relieves excessive system pressure when such pressure rises above a pre-set value. It responds immediately, accurately, and with high repeatability to a rise in system pressure by opening fully. It also provides smooth drip-tight closing. BERMAD 700 series valves are hydraulically operated globe valves available in either standard oblique (Y) or angle (A) pattern design. They have a full-bore hydrodynamic body providing an unobstructed flow path, with a seat assembly and double chamber unitized actuator that can be disassembled from the body as a separate integral unit
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
- Flow stem – 73Q-M
- Position indication – 73Q-S
Typical Installation
Bermad - Model-73Q - Typical Installation
Technical Data
Operation
Closed
This drawing refers to 40-200 mm sized valves only. For other sizes please refer to the Model’s IOM.
Open
This drawing refers to 40-200 mm sized valves only. For other sizes please refer to the Model’s IOM.
Main Valve
Valve Patterns: “A” (angle)
Size Range: 50-80mm - Y Pattern 50-600mm
Pressure Rating: 16 bar - with higher pressure options available.
End Connections:
Threaded Female BSPT
Others: Available on request
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
Pilot Standard Materials:
Body: Stainless Steel, Bronze or Brass
Elastomers: Synthetic Rubber
Spring: Stainless Steel
Internals: Stainless Steel
Pilot Options:
Consult Deeco.
Notes
- Main pipe diameter, pressure rating, flow rate and relief pressure are required for optimal sizing
- Recommended continuous flow velocity: 0.3-15 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
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.
