LEVEL CONTROL AND PRESSURE SUSTAINING VALVE with Bi-Level Vertical Float Model 753-66 EN/ES

Hydraulically operated, level control and pressure sustaining control valve that
controls reservoir filling and reservoir level. During filling the valve sustains
minimum upstream pressure regardless of fluctuating flow or 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 valves
hydrodynamic body is designed for 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 size and
dimensions requirements of various standards.

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

Level control – 750-66
Flow control – 757-66-U
Electric float backup – 753-66-65
Closing surge prevention – 753-66-49
Relief override – 753-66-3Q
Level sustaining – 75A-66
Independent Check Feature – 753-66-2S
See relevant BERMAD publication

English WW 753-66 SIGMA Product Page
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English WW 700 SIGMA Engineering
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English WW 700 SIGMA Ordering Guide
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