Reverse Osmosis PWM-250 - Commercial, 250 GPD
Part: #PWM-0250

PureWaterMachine Series
PureWaterMachine for Restaurant Drink Water and Ice Supply 5-Stage Reverse Osmosis Filtration makes clean, good tasting, odor-free water from 150-GPD to 350-GPD.

Up to four high capacity RO membranes are used in series to provide the required water rate. It is supplied with a 14 gallon pressurized tank which holds 9-gallons of water. Two tanks may be used to increase the reserve to 18-gallons. The RO technology removes an average of 95% of the TDS. To further decrease the salt content, a de-ionizer cartridge can be installed as a post-filter. The five stages are described in the table below.

A booster pump is installed in the system to provide water pressure of 85 psi to the membranes. To reduce wear on the pump, it is installed after the pre-filters. A pressure switch in the line to the tank will turn on the pump when the tank pressure is 25 psi, and off at 40 psi and is also adjustable.

An optional stand can be provided. Made of powder coated steel, it bolts to the underside of the bracket, providing a floor standing unit.

AUTOFLUSH OPTION. For water above 500 TDS, it is recommended that the optional autoflush be used. A solenoid valve bypasses the flow restrictor in the brine discharge line. When the pump turns on, the solenoid valve opens for 20 second to permit al the water to go to the drain, thus flushing the salts from the membrane and prolonging life. After 20-seconds, the valve closes, and normal reverse osmosis resumes.

Restaurant Drinking Water and Ice Supply 5-Stage Reverse Osmosis Filtration makes clean, good tasting, odor-free water from 150-GPD to 350-GPD.

Features • • • • • Auto Shut-Off valve (Conserves water) Flow Restrictor – modified capillary Long Reach, Non-airgap Faucet Feed water connector – Threaded Inlet Adapter with Metal Ballvalve Drain Clamp 3/8 Inch Flexible Polyethylene Tubing w/Quick Connect Fittings     Up to four high capacity RO membranes are used in series to provide the required water rate. It is supplied with a 14-gallon pressurized tank which holds 9-gallons of water. Two tanks may be used to increase the reserve to 18-gallons. The RO technology removes an average of 95% of the TDS. To further decrease the salt content, a de-ionizer cartridge can be installed as a post-filter. The five stages are described in the table below. A booster pump is installed in the system to provide water pressure of 85 psi to the membranes. To reduce wear on the pump, it is installed after the the pre-filters. A pressure switch in the line to the tank will turn on the pump when the tank pressure is 25 psi, and off at 40 psi. and is also adjustable. An optional stand can be provided. Made of powder coated steel, it bolts to the underside of the bracket, providing a floor standing unit. Specifications Shipping Weight: 65-80 lb. Dimension: 13 1/2" L x 7.5" W x 40" H Tank 15 3/4" dia. x 22 1/2" H Booster Pump: 24-36 volt DC flow through diaphram pump with 110VAC/ 24-36VDC60hz transformer Conditions of Use • Water Must be microbiologically safe • Temperature, 40 -100 degrees F • pH Range, 3 to 11 • Feed pressure, 20 to 100 psig • Maximum TDS, 1500 PPM • Turbidity, less than 1.0 NTU ed