Olson Mfg, LLC dba V-RAM Pumps products

The V-RAM Sludge Pumping Systems are designed for high pressure, high volume and high abrasive sludge pumping 24 hours a day, seven days a week. The Sludge Pumping Systems are used to move sludges with a 12 to 55% solid ratio with pumping volumes ranging from 1 GPM to 428 GPM. Each system is completely designed for particular application and includes the pumping module which includes the double pumping chambers with integrated water chamber and four passive ball valve system, hydraulic unit, double screw in feed conveyor (auger) and control package.

The V-RAM hydraulic units utilizes an open looped horsepower limited hydraulics instead of closed looped hydraulics that always runs on high pressure. The open loop on demand horsepower limited hydraulics only develops the pressure that is necessary to push your material; saving valuable energy and costs.

V-RAM has developed a pumping piston that uses urethane seals instead of the Buna-N style pistons. The urethane material out performs Buna-N material in its ability to withstand tears and abrasive material along with a higher resistance to chemicals. The typical Buna-N material has a tensile strength of only 1,500 PSI; whereas the typical urethane material has a tensile strength of 4,000 PSI. With these characteristics the urethane seals have proven to have a longer life and slower failure rate.

The special designed sludge ball valves have been proven reliable and have a history of longevity. The sludge ball valves have a self-cleaning action for rags and other materials which would normally block other types of valves. The V-RAM ball valves have been used in municipal sludge cake pumps for over 30,000 hours with no design or wear failures. The effective wear surface of the ball valve is 50 times that of poppet valves. With easy maintenance in mind the ball valve components are easily accessible and can be replaced within 2 to 3 minutes after the pump is opened.

V-RAM uses several different types of hydraulic control valves. Simple air, electric or proportional hydraulic controls valves can be mounted on the hydraulic cylinder or the hydraulic unit. The style and type of hydraulic control valves are matched to each individual application.

Our Sludge Pumping Systems utilizes two standard type hydraulic cylinders. The hydraulic cylinders are connected together at one end with hydraulic lines, so that when one cylinder is extended the other is forced to retract. The cylinder balance is monitored and maintained by the control system and a simple control valve. The monitoring is accomplished with linear transducers that are mounted into the end of each cylinder.

The sludge control packages are equipped with a PLC used to monitor and control the operation of the sludge cake pump and pump feeding double auger conveyor system. The PLC automatically and independently sets and maintains the pumping volume on each cylinder under all changing sludge characteristics and all pump discharge conditions.

The V-RAM passive flapper check valve allows large solids such as boning floor bones to be pumped without pre-breaking.

Depending on the type material a ball valve may be used for certain sludges and viscous materials.

V-RAM’s reversed hydraulic cylinder is design to protect the hydraulic cylinder components and prevents hydraulic fluid contamination in the material being pumped.