Description

WW720-4T – Sigma EN ES Dynamic Pressure-Reducing Control Valve AS5081 / WaterMark

Dynamic Pressure-Reducing Control Valve with Electronic Multi-Level Setting (Pneumatically) Controlled by Technolog-Modulo Controller. Equipped with unique Multi-Setting Pneumatic Controlled unit (MSPC), which responds to a Modulo controller by changing the pilot’s set point according to a programmed time and flow function.

Hydraulic Pressure Control
- Line pressure driven
- Protects downstream even during zero demand
User-Friendly design
- Easy pressure setting
- Simple in-line inspection and service
- Easy addition or control features
Designed to stand up to the toughest conditions
- Excellent anti-cavitation properties
- Silent operation suitable for urban areas
- Wide flow range
- High stability and accuracy
Double chamber design
- Moderated valve reaction
- Protected diaphragm
Flexible design – Easy addition of features
Obstacle free, full bore – Free flow pass
V-port Throttling Plug – Very low flow stability
In-line serviceable – Easy maintenance

Applications Guide

Pressure reducing systems
Pressure management and leakage control

Operations

The Modulo controller receives continues readings of flow and up-downstream pressure and provides pneumatic pressure to the MSPC unit changing the pilot set point according to pressure & flow pressure & time functions. The pressure reducing pilot commands the hydrometer to throttle closed when downstream pressure rises above pilot setting, and modulate open when it drops below pilot setting. A standard PDA allows programming and data downloading.