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Bermad Model 710 - Solenoid Controlled Valve

The Model 710 Solenoid Controlled Valve is a hydraulically operated, diaphragm actuated control valve that either opens fully or shuts off in response to electric signals. For very low-pressure applications, refer to the Full Powered Opening and Closing Model 710-B.


Features and Benefits

  • Line pressure driven
    - Independent operation
    - No motor required
    - Long term drip tight sealing
  • Solenoid controlled
    - Low power consumption
    - Low cost wiring
    - Wide ranges of pressures and voltages
    - Normally Open, Normally Closed or Last Position
  • In-line serviceable – Easy maintenance
  • Double chamber
    - Full powered opening (option “B”) & closing
    - Non-slam closing characteristic
    - Protected diaphragm
  • Semi-straight flow – Smooth flow characteristics
  • "Y" or angle, wide body – Minimized pressure loss
  • Flexible design – Easy addition of features

Major Additional Features

  • Full powered opening & closing – 710-B
  • Check feature – 710-20
  • Opening & closing speed control – 710-03
  • Relief override – 710-3Q
  • Flow over the seat (fail-safe close) – 710-O
  • Closing surge prevention – 710-49


The Model 710 is a solenoid controlled valve equipped with a 3-Way solenoid pilot. The normally open solenoid [1] applies pressure to the upper control chamber [2], harnessing valve differential pressure to power the diaphragm actuator, closing the main valve. Energizing the solenoid vents control chamber pressure, causing the main valve to open fully. The lower control chamber [3] is open to the atmosphere. In cases where pipeline water is contaminated (corrosive, debris laden) external control fluid is often used. For 10” and larger valves, an accelerator [4] quickens valve response.

Engineer Specifications

The Solenoid Controlled Valve shall either open fully or shut off in response to electric signals.

Main Valve: The main valve shall be a center guided, diaphragm actuated globe valve of either oblique (Y) or angle pattern design. The body shall have a replaceable, raised, stainless steel seat ring. The valve shall have an unobstructed flow path, with no stem guides, bearings, or supporting ribs. The body and cover shall be ductile iron. All external bolts, nuts, and studs shall be Duplex® coated. All valve components shall be accessible and serviceable without removing the valve from the pipeline.

Actuator: The actuator assembly shall be double chambered with an inherent separating partition between the lower surface of the diaphragm and the main valve. The actuator assembly shall not consist of any closing spring nor spring-like device. The entire actuator assembly (seal disk to top cover) shall be removable from the valve as an integral unit. The stainless steel valve shaft shall be center guided by a bearing in the separating partition. The replaceable radial seal disk shall include a resilient seal and shall be capable of accepting a V-Port Throttling Plug by bolting.

Control System: The control system shall consist of a 3-Way solenoid pilot valve (for 10” and larger valves, an accelerator shall be added to the solenoid), an isolating cock valve, and a filter. The assembled valve shall be hydraulically tested.

Quality Assurance: The valve manufacturer shall be certified according to the ISO 9001 Quality Assurance Standard. The main valve shall be certified as a complete drinking water valve according to NSF, WRAS, and other recognized standards.

Typical Applications

Complex Distribution Networks

In complex distribution networks, management optimization of sources and consumers is essential:

  • Sources are of various qualities and costs
  • Source quality varies throughout the year
  • Consumers demand various qualities
  • Zones require isolation for maintenance
  • Burst occurrence requires management
  • Reservoirs call for systematic refreshing

The Model 710 is well suited to meet all the above needs and more. It should be included for placement in multiple locations during the design stage or with changing needs.

Complex Distribution Networks

Filtration Systems

In a filter battery installed as part of a water treatment system, each filter requires periodic back flushing. This process entails reversing the direction of flow through each filter. Two Model 710 valves [V1] & [V3], installed upstream from each filter, enable this reversal. The "untreated water valve" [V1] is Normally Open and the "back flushing inlet valve" [V3] is Normally Closed.

Filtration Systems

Technical Data

Dimensions and Weights

Bermad Model 710 - Solenoid Controlled Valve - Dimensions and Weights

Main Valve

Standard Materials:

Body & Actuator: Ductile Iron

Internals: Stainless Steel, Bronze & coated Steel

Diaphragm: NBR Nylon fabric-reinforced

Seals: NBR

Coating: Fusion Bonded Epoxy, RAL 5005 (Blue) NSF & WRAS approved or Electrostatic Polyester Powder, RAL 6017 (Green)

Valve Patterns: “Y” (globe) & angle

Size Range: 11/2–32” (40-800 mm)

End Connections (Pressure Ratings):

Flanged: ISO PN16, PN25 (ANSI Class 150, 300)

Threaded: BSP or NPT

Others: Available on request

Working Temperature: Water up to 80°C (180°F)

Control System

Standard Materials:

Accessories: Bronze, Brass, Stainless Steel & NBR

Tubing: Copper or Stainless Steel

Fittings: Forged Brass or Stainless Steel

Solenoid Standard Materials: Body: Brass or Stainless Steel

Elastomers: NBR or FPM

Enclosure: Molded epoxy

Solenoid Electrical Data:


(ac): 24, 110-120, 220-240, (50-60 Hz)

(dc): 12, 24, 110, 220

Power Consumption:

(ac): 30 VA, inrush; 15 VA (8W), holding or 70 VA, inrush; 40 VA (17.1W), holding (dc): 8-11.6W

Values might vary according to specific solenoid model

Accelerator Standard Materials:

Body: Brass or Stainless Steel

Internals: Stainless Steel & Brass

Elastomers: NBR or FPM

How to Order

Please specify the requested valve in the following sequence: (for more options please contact us)

PDF Datasheets

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Engineering Data*

2D CAD Drawing

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Product code

Bermad Model 710 - Solenoid Controlled Valve

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