Diaphragm valve WW-750-67

electrichydraulicfloat

The Model 750-67 Level Control Valve with Modulating Vertical Float is a hydraulically controlled, diaphragm actuated control valve that controls reservoir filling to maintain constant water level, regardless of fluctuating demand. The modified Model 75A-67, installed at reservoir outlet, sustains minimum reservoir level. PRODUCT FEATURES & BENEFITS Line pressure driven – Independent operation Modulating hydraulic float control “Always Full” reservoir Double chamber Full powered closing Non-slam closing characteristic Protected diaphragm External installation Easy access to valve and float Easy level setting Less wear and tear Balanced seal disk – High flow capacity In-line serviceable – Easy maintenance Flexible design – Easy addition of features TYPICAL PRODUCT APPLICATIONS Typical Applications Rooftop Reservoirs Rooftop reservoir level control is attained by electric control of the basement pumps according to reservoir level. As overflow of a rooftop reservoir can cause costly damage, hydraulic backup protection is recommended. Where system design requires an “always full” rooftop reservoir, the Model 750-67 Modulating Level Control Valve: Ensures the reservoir is “always full” Closes securely to prevent overflow Secured closing, even after long periods of the valve being open, is ensured by the fully developed hydraulic closing force associated with the double chamber design.