Overview

The LCV system is designed to effectively eliminate loss of prime outages when pumping liquids that tend to out-gas such as sodium hypochlorite. Working under suction lift conditions, the LCV automatically degases the fluid before it reaches the pump inlet; thus eliminating the major cause for losing prime. The LCV also aids in pump operation as follows:

• Suction lift operation eliminates potential chemical spill/release problems associated with flooded suction operation.
• Automatic priming of suction side of system via integral vacuum generation.
• Improved priming by providing temporary flooded suction only during priming.
• Two stage filtering.
• Closed pump calibration with no operator contact with pumped fluid.
• Continuous visual indication of pump operation.
• Facilitates supply change over with out service interruption.
• Run-out detection with dry contact for remote signaling.

The all PVC plastic constructed wall mounted panel accommodates up to two solenoid pumps or similar size/weight mechanical diaphragm pumps (see Technical Data for limits.). The panel also provides convenient mounting for the LCV and its controls. Each pump discharge is connected to a manifold containing a backpressure gauge with protector, backpressure valve, pressure relief valve, pulsation dampener, and pressure/drain valve.

An optional Run-Out Relay Alarm (when ordered) provides a dry set of contacts (N.O. or N.C.) for wiring to an external alarm device to signal when the supply tank is empty. This condition is sensed by the LCV. No electrical connection with the supply tank is required.

 

Theory of operation

The LCV system is designed to work under suction lift conditions utilizing the resultant partial vacuum to aid in the degassing of the process fluid.  The gas is collected at the top of the LCV where upon reaching a predetermined volume, it is sensed and automatically discharged from the system.  An eductor is used to draw off the collected gases.  The eductor is also used to initially fill the system by drawing up the process fluid.  

In addition, by being mounted above the supply tank, the LCV system, when open to atmosphere, presents the pump with a flooded suction resulting in positive head priming. 

Technical Details

Process Fluid:	Sodium hypochlorite, hydrogen peroxide, and other water like chemicals
Capacity:	To 64.0 GPH
Flow indication:	Visual through clear housing
Calibration Range:	Direct reading dual scales up to 64.0 GPH  (4000 ML/min) with one minute sample
Lift capabilities (Primed):	To 28 feet of water (or limit of pump spring return)
Priming lift capabilities:	System creates flooded suction condition for priming
Temperature Limits:	35 to 125° F (2 to 52° C) outdoors dependent on pump rating
Power Requirements:	115 VAC, 60 Hz, 1.0 amp.
Outputs (optional):	One normally open or normally closed dry contact available, rated at 10 amps. Resistive @ 120 VAC (5 amps. Resistive @ 240 VAC)
Eductor requirements:	For Water:  1.0 GPM at 30 PSI min. and not exceed 100 PSI For Air:  10 to 30 psi supply
Eductor Water Use:	Less than 1.0 GPD (Typical)
Mounting:	Wall mounted, 24" wide x 48 high x 1/2" thick panel
Materials of Construction:	Panel: PVC, Stainless steel fasteners. Wetted components: PVC, Teflon, PVDF, Viton, Titanium, Epoxy
Shelf Loading:	1/2" Shelf - Max. 75 lbs., 1" Shelf - Max 150 lbs.

 

Insatallations

Standard Installation.

Custom installation for large capacity system.

Custom installation for multiple points of application.

H2O Controls 87C Jacksonville, Rd - Towaco, NJ 07082
Phone: (973)-263-1717 | Fax (973)263-1942 | Email: info@h2ocontrols.com