Features and Benefits

Fast, Safe, Low-Cost Way to Separate Steam and Water and Remove Harmful Dissolved Solids. Protects boiler surfaces from severe scaling or corrosion problems. Economical Flash Purification Process for Enhancing Blowdown Effectiveness. Reduce drain water temperature to meet state and local requirements. The Design is Quiet, with Noise Levels Held Below 90 dBA, so no Exhaust Head is Required. CB Blowdown Separators are Compact, and Can Be Quickly Installed with Few Connections.

Stainless steel striking plate greatly extends separator life. Momentum of Water is Speeded by Spiral Baffle Centerwise to Drain. Drain is Completely Filled - No Center Void. Tangential inlet and small diameter prompt high velocity spinning for release of steam. All Interior Surfaces Slant Toward Drain, Making Unit Self- Draining, Self-Drying for Longer Life. Proven Performance. Demonstrated Durability. Universal Adaptability.

Product Offering

Boilers that supply steam for power, process or heating applications require periodic and more often, frequent, blowdowns to prevent buildup of harmful solids. Blowdown protects boiler surfaces from severe scaling or corrosion problems that would otherwise result. Cleaver-Brooks blowdown separators use a safe, economical flash purification process for enhancing blowdown effectiveness. Steam is rapidly separated from blowdown water and vented out the top of the blowdown separator in a cyclonic spinning action. Water and dissolved solids are flushed out the bottom drain.

The design is quiet, with noise levels held below 90 dBA, so no exhaust head is required. Internal pressures do not exceed 5 psig. Blowdown water is cooled to 120 °F by a drain tempering device, designed to meet state and local codes. Cleaver-Brooks blowdown separators are compact, and can be quickly installed with few connections. Accessories include leg or wall brackets, drain tempering fitting, strainer, temperature regulating valve, thermometer, pressure gauge and flanges.

Pressure ranges:

• 0 to 300 psig, standard.
• 301 to 1600 psig, special.

Available with ASME "U" stamp.

Standard and Optional Equipment Selection For manual drain water tempering, use Aftercooler model 5D and specify drain diameter.

For automatic control of drain water temperature, use 18DF_ or 20AO_ Aftercooler. 20AO Aftercooler is required in some areas to automatically regulate the temperature of the water to the drain. Check local codes to ascertain if it is required in your area. A temperature regulating valve should be used when the blowdown temperature going to the drain needs to be less than 212 °F. (See Table H10-2 to select cooling water line and valve size.)

Use a solenoid valve and thermostat when the cooling water pressure exceeds 80 psig.

• Model 18 DF Aftercooler. Nonclogging automatic drain tempering fitting with stainless steel mixing tongue (on 4" and larger) to provide thorough mixing of influent cold water with drain water. The middle flange permits rotation for various pipe fitting requirements and also serves as a dismantling flange. Two bulb-wells for mounting control valve and thermometer are furnished. When ordering, state cold water inlet size.
• Model 20AO Jacket Type After Cooler. Required in some areas. Has mixing holes corresponding to the cold water inlet size. The lower portion is designed with wells to accommodate automatic control bulb and thermometer. When ordering state cold water inlet size.
• Temperature Regulator Valves. Automatically control the flow of cold water by responding to temperature changes at the thermostatic bulb. The 6" capillary tube allows installation in the cold water line while the 11" bulb is mounted in the lower portion of the aftercooler. The valve size should correspond to the cold water inlet.
• Thermometer. Bi-metal, drawn steel case, rust resistant and finished in oven baked enamel. Six inch brass stem with 1/4" NPT bushing provided for use with Model 18 DF and Model 20 AO Aftercoolers.