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Bermad - Model 750-66 - Level Control Valve

Deeco - Bermad - 750-66 - Product Image
Brand: Bermad
Category: Control Valves, 700 Series
Size Range:



EN: 50-400mm - Flanged

ES: 65-600mm - Flanged

Engineering Data:

Bermad - Model 700 - Sigma EN/ES - Engineering Data

Product Description

A hydraulically operated control valve that controls reservoir filling and reservoir level. Reservoir filling is in response to a hydraulically controlled non-modulating bi-level vertical float that opens at a pre-set reservoir low level and shuts off drip-tight at a pre-set high level. 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's 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

  • Pressure sustaining – 753-66
  • Flow control – 757-66-U
  • Electric float backup – 750-66-65
  • Independent Check Feature – 750-66-2S

Typical Installation

Typical Installation 750-66

Technical Data


Bermad - Model 750-66 - Operation

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

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

Float Pilot Standard Materials:

Body: Brass or Stainless Steel 316

Elastomers: Synthetic Rubber

Internal Parts: Stainless Steel 316 & Brass

Lever System: Brass or Stainless Steel 316

Float: Plastic

Float Rod: Stainless Steel

Base Plate: Fusion Bonded Epoxy Coated Steel or Stainless Steel 316


  • Each extension rod adds 560 mm. One extension rod is supplied
  • The extra counterweight is required if a second extension rod is used.
  • If inlet pressure is below 0.5 bar or above 10 bar, consult Deeco.
  • Inlet Pressure, Outlet Pressure, and flow rate are required for optimal sizing.
  • Recommended maximum flow velocity: 6.0 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.

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