WW 750-65

WW 750-65

WW 750-65

Product catalog summary
Overview
The Level Control Valve with Bi-Level Electric Float is designed for reservoir filling and outflow management, particularly in systems with low supply pressure, noise sensitivity, and energy cost concerns. It is suitable for systems with poor water quality and various reservoir characteristics.

Features and Benefits
  • Line Pressure Driven: Operates independently without external power.
  • Bi-Level Electric Float Switch: Provides on/off service with low cavitation damage and simplified installation.
  • Solenoid Controlled: Offers low power consumption with options for normally open or closed main valves.
  • Double Chamber Design: Ensures full powered closing, low noise, and non-slam characteristics.
  • External Installation: Facilitates easy access and maintenance.

Additional Features
  • Full powered opening and closing (750-65-B)
  • Closing surge prevention (750-65-49)
  • Hydraulic float backup (750-65-66)
  • Altitude pilot backup (750-65-80)
  • Relief override (750-65-3Q)
  • Pressure sustaining valve (753-65)
  • Flow control valve (757-65-U)
  • Level sustaining (75A-65)

Operation
The valve operates in response to an electric float switch signal, opening at a pre-set low level and closing at a pre-set high level. It features a solenoid pilot and, for larger valves, an accelerator to enhance response time.

Applications
The valve is ideal for various reservoir types, including shallow, deep, high, and low elevation reservoirs, as well as rooftop and basement installations. It is suitable for systems where electric power is available.

Technical Specifications
  • Main Valve: Center guided, diaphragm actuated globe valve with ductile iron body and stainless steel internals.
  • Actuator: Double chambered with a removable assembly.
  • Control System: Includes an electrical level sensor, solenoid pilot, isolating cock valve, and filter.
  • Quality Assurance: ISO 9001 certified, compliant with NSF and WRAS standards.

Technical Data
  • Valve Patterns: "Y" (globe) & angle
  • Size Range: 1.5–32 inches
  • End Connections: Flanged (ISO PN16, PN25), Threaded (BSP or NPT)
  • Working Temperature: Up to 80°C (180°F)
  • Materials: Ductile Iron body, Stainless Steel internals, NBR seals

Ordering Information
Specify the valve by primary feature, size, additional features, tubing and fittings, voltage, and position. Multiple choices are permitted for customization.
See more

Catalog excerpts

WW 750-65-1

BERMAD IrrigationLevel Control Valve with Bi-Level Electric Float WW-750-65 ■ Reservoir filling □ Very low supply pressure □ Low noise generation □ Energy cost critical systems □ Systems with poor water quality ■ Reservoir outflow □ Distribution routing □ Sewerage "fill and flush” systems The Model 750-65 Level Control Valve with Bi-Level Electric Float is a hydraulically operated, diaphragm actuated control valve that controls reservoir filling in response to an electric float switch signal, opening at pre-set low level and shutting off at pre-set high level. The double chamber actuated Model 750-65-B is powered to fully open and close even at very low pressure. Major Additional Features ■ Line pressure driven - Independent operation ■ Bi-Level electric float switch □ On/off service □ Low cavitation damage □ No hydraulic sensing tubes □ Simplified float installation and setting □ Suited to various float switches ■ Solenoid controlled □ Low power consumption □ Normally Open or Normally Closed main valve ■ Double chamber □ Full powered closing □ Low throttling noise □ Non-slam closing characteristic □ Protected diaphragm ■ External installation □ Easy access to valve and float □ Less wear and tear ■ In-line serviceable - Easy maintenance ■ Full powered opening & closing - 750-65-B ■ Closing surge prevention - 750-65-49 ■ Hydraulic float backup - 750-65-66 ■ Altitude pilot backup - 750-65-80 ■ Relief override - 750-65-3Q ■ Pressure sustaining valve - 753-65 ■ Flow control valve - 757-65-U ■ Level sustaining - 75A-65 See relevant BER

 Open the catalog to page 1
WW 750-65-2

BERMAD Irrigation WW-700 Series Operation The Model 750-65 is a solenoid controlled valve equipped with a bi-level electric float switch* and a solenoid pilot.** The float switch [1] closes at pre-set low level, energizing the solenoid [2], and opens at pre-set high level, de-energizing it. Should the level drop, the solenoid is energized, causing the upper control chamber [3] to vent, opening the main valve. Should the level rise, the solenoid is de-energized, and pressure is applied to the upper control chamber harnessing line pressure to close the main valve. For 8” (200 mm) valves and larger,...

 Open the catalog to page 2
WW 750-65-3

Typical Applications Reservoirs vary in their characteristics - location, elevation, filling & emptying, flow & pressure, surface area, etc. These various characteristics require various level control valve solutions. The Model 750-65 is the ideal solution for level control in reservoirs - shallow and deep, low and high elevation, rooftop and basement, in water towers, and wherever electric power is available. Pumping to Uphill Reservoir In a reservoir system where a pump provides pressure, consumers are prioritized over reservoir filling by installing the Model 753-65 Level Control and Pressure...

 Open the catalog to page 3
WW 750-65-4

BERMAD Irrigation WW-700 Series WW-750-65 For full technical details, refer to Engineering Section. Technical Data Flow Chart Data is for Y-pattern, flanged, PN16 valves Weight is for PN16 basic valves “C” enables removing the actuator in one unit “L”, ISO standard lengths available For more dimensions and weights tables, refer to Engineering Section Flow Rate - m3/h Data is for Y-pattern, flat disk valves For more flow charts, refer to Engineering Section Main Valve Control System Valve Patterns: “Y” (globe) & angle Size Range: 11/2–32” (40-800 mm) End Connections (Pressure Ratings): Flanged:...

 Open the catalog to page 4

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.