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.

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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
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• Double chamber design
  - Moderated valve reaction
  - Protected diaphragm
  - Optional operation in very low pressure
  - Moderated closing curve
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• Flexible design - Easy addition of features
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• Obstacle free flow pass
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• V-Port Throttling Plug (Optional) - Very stable at low flow
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• Compatible with various standards
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• High quality materials
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• In-line serviceable - Easy maintenance

Major Additional Features

• Flow stem – 73Q-M
• Position indication – 73Q-S

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Typical Installation

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Operation

Open

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Closed

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This drawing refers to 1½ – 8”; 40-200 mm sized valves only. For other sizes please refer to the Model’s IOM.

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Main Valve

Valve Patterns: “Y” (globe) & “A” (angle)

Size Range: 11/2–24”; 40-600 mm

Pressure Rating: 25 bar; 400 psi

End Connections: Flanged (all standard)

Threaded: BSP or NPT

Others: Available on request

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Temperature Rating: 60°C; 180°F for cold water applications

Optional Higher temperature: Available on request

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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

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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: Please contact us for more information.

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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; 1-50 ft /sec

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