Bermad - Model 740 - Booster Pump Control Valve

Double-chambered, hydraulically operated, active check pump control valve that opens fully or shuts off in response to electric signals. The valve isolates the pump from the system during pump startup and shutdown, thereby preventing pipeline surges. 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 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

• Independent check feature – 740-2S
• Pressure sustaining – 743
• Pressure reducing – 742
• Flow control – 747-U
• Pump circulation control – 745
• Electronic control – 740-18
• Pressure sustaining and Pressure reducing – 743-2Q

Typical Installation

Operation

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

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.

Pilot Options:

For more details check the solenoid product page

BR 740-E Controller:

Supply Voltage: 110, 230 VAC 50/60Hz

Power Consumption: <8VA Solenoid

Circuit Fuse: 2A (internal)

Pump Control Circuit Fuse: 1A (internal)

Dimensions: 96x96x166mm (DIN), 0.75kg

Housing Material: NORYL (DN 43700)

Limit Switch:

Switch Type: SPDT

Electrical Rating: 10A, type gl or gG

Operating Temperature: Up to 85°C

Enclosure Rating: IP66

Notes

• Recommended maximum flow velocity: 6.0m/sec.
• Minimum operating pressure: 0.7 bar. For lower pressure requirements consult Deeco.

For technical specifications (Flow charts, valve characteristics, dimensions, etc.) - Please refer to the Engineering Data:
Bermad - Model 700 - Sigma EN/ES - Engineering Data