Read Four page Grundfos mailerand condensed catalog.pub text version

City Water Pressure Low?

As demand increases on municipal water systems, expect to see

more water pressure fluctuations in your facility. Some equipment used in plants requires a constant pressure. Grundfos variable speed pumps increase efficiency and stabilize water pressures. City Water With Varying Pressure Constant Pressure to Your Equipment

new Cool-Top is suitable for liquid service in the temperature range of ­22 F up to + 356 F. No seal cooling water is required. An innovative air-cooled chamber separates and insulates the shaft seal chamber from high liquid tem-

Grundfos Pumps

inside the pump which leads to cavitation and pump failure. To understand cavitation, take a moment to consider the boiling point of water. Water Pressure Boiling Point 134 F 192 F 212 F 227 F 239 F

Technical Data Max Liquid Temperature Max Pressure Liquids 356 F (180 C) 580 psig (40 bar) Any handled by Grundfos Pumps

25" Hg Vacuum 10" Hg Vacuum Grundfos Technology and R&D Center With over 11,000 employees worldwide, and annual production in excess of 10 million pumps, Grundfos is one of the leading pump manufacturers. With over 60 years of application and engineering expertise, Grundfos offers a broad array of pumps for many types of applications· · · · · · · · · Heating and Hot Water Service Systems Cooling and Air Conditioning Systems Industrial Applications Pressure Boosting and Liquid Transfer Groundwater Supply Domestic Water Supply Sewage and Wastewater Environmental Applications Dosing O psig (atmospheric pressure) 5 psig 10 psig

E-Pumps are new products from Grundfos, combining state-ofthe-art frequency converter technology with the well known range of Grundfos pumps for building, industrial, boiler room, and other applications. Pumps include a built-in PI controller, connections for external signals, and set point adjustment of the unit. Systems can be set up to maintain· · · Constant pressure Constant flow A system curve to match your needs

Next time you need to replace a pump in boiler feed or high temperature service, contact us for information on a Grundfos CoolTop pump. We also repair Grundfos pumps.

Notice that water can boil at temperatures above or below 212 F depending on the pressure.

Repair Services

Save money on steam traps, pressure reducing valves, control

valves, pumps and similar items by having them repaired instead of buying new items. Gather up your failed items, drop them in a crate or box and send them back to us for a complete check out. We will tear down your worn out valves, do a complete inspection, and then quote you a price for a complete overhaul. Valves are rebuilt including bead blasting and repainting so the valve looks like new when returned to you. All work is guaranteed for six months from the date of re-installation. · · · · · · Armstrong Grundfos Spence Spirax Sarco Safety Valves And many more

Deaerator

NPSH (feet)

Take a moment to review the complete product offerings from Grundfos in this brochure. Ed Moschetti

To Boiler All Grundfos boiler feed pumps have NPSH readings in the 4-6' range depending on the application specifics. A low NPSH reading insures that the water will not boil in the pumps causing cavitation which sounds like marbles rolling around in a can. Cavitation will cause seal and impeller failures within a very short span of time. Because Grundfos C series pumps have this low NPSH rating, you are assured of long trouble free service. Grundfos C series pumps can also be fitted with air cooled seals which will raise the maximum water temperature to 350 F for very severe service applications. Grundfos also offers the LiqTec control unit which will automatically shut down the pump if it senses high temperatures and avoid a costly repair and down time. Grundfos pumps are your best choice for boiler feed service.

Variable Speed Pump

Simplex Variable Speed Pump Package

Multiple Variable Speed BoosterPaQ Pump System

Boiler Feed Pumps

One of the more demanding applications for pumps is boiler feed service. A boiler feed pump must be able to pump large volumes of water at temperatures of 200-250 F, deliver proper pressure to permit the water to enter the boiler, and survive a tough environment. NPSH stands for Net Positive Suction Head. NPSH is the amount of pressure which must be present on the suction side of the pump to prevent water from boiling

If water pressure or flow is a problem in your facility, give us a call to discuss a Grundfos variable speed pump system to meet your requirements.

New Products from Grundfos Pumps

Grundfos offers a wide range of horizontal and vertical pumps to meet most any pressure or flow requirement. Until recently, Grundfos pumps have been limited to a maximum temperature of 250 F due to limitations in the construction of the seals. The new Grundfos Cool-Top pump is designed to handle extreme temperatures. The pump was specifically designed to keep its cool in boiler feed and other high temperature industrial applications. Extreme temperatures usually ruin the mechanical shaft seals on traditional pumps. The

This short list represents just a few of the valve manufacturers and types of valves we can provide repair services for. We also provide repair service for vacuum pumps and pumps for liquid service. We specialize in repairing: · · · · Becker Busch Grundfos Rietschle

CONTROL SPECIALTIES

2503 Monroe Drive Gainesville, Ga. 30507 Phone 770-532-7736 Toll Free 800-752-0556 Fax 770-535-0536 Email - [email protected] Website - www.control-specialties.com

Save money and contact us for more information on valve and pump repairs. Page 2

We are never closed-phones answered 24 hours per day!

STEAM - AIR - VACUUM - HVAC - WATER EQUIPMENT & CONTROLS

CR, CRN Series Multistage centrifugal pumps Technical Data Flow max Head max (feet) Head working pressure Maximum temperature Applications Boiler feed systems Heating and cooling systems Water supply systems Water treatment systems Fire fighting systems Process applications Also offered in Titanium construction 638 gpm 1588' 735 psig 350 F

CR, CRE Series Multistage variable speed pumps Technical Data Flow max Head max (feet) Head working pressure Maximum temperature Applications Boiler feed systems Heating and cooling systems Water supply systems Water treatment systems Fire fighting systems Process applications Also offered in Titanium construction 450 gpm 790' 435 psig 248 F

LiqTec Control and monitoring unit Technical Data Provides automatic shut down of pump if it runs dry or if temperatures run too high. Manual or automatic reset. Plug and play installation. PC compatible for remote operation. Available for CR series. Applications Boiler feed systems Heating and cooling systems Water supply systems Water treatment systems Fire fighting systems Process applications Also offered in Titanium construction

Circulator Pumps, In-line Close-Coupled Type Technical Data Flow max Head max (feet) Head working pressure Maximum temperature Applications Hot or cold water HVAC system Domestic hot water booster service Cast iron or bronze construction OPD or TEFC motor options Options on shaft seals for application Bronze housing also offered Industry standard flange-to-flange 300 gpm 67.5' 145 psig 104 F

Single-Stage, In­ Line Centrifugal Pumps Technical Data Flow max Head max (feet) Head working pressure Maximum temperature Applications Hot or cold water HVAC system Domestic hot water booster service Direct coupled NEMA-C face motor 431 stainless steel pump shaft Stainless steel impeller and shaft seal Shaft seal options for application Low starting torque for long service 600 gpm 180' 175 psig 104 F

Dosing Pumps, Diaphragm Style & Motor Driven Style Technical Data Flow max ( diaphragm) Flow max (motor driven) Head working pressure Maximum temperature Applications Injection of chemicals for any application Digital setting for precise metering Control panel with full display Pulse or timer based batch 4-20 ma remote control option Easy calibration & priming Optional alarm connection Front or side panel 12.68 gph 313 gph 122 psig 122 F

Comfort System Instant Hot Water Recirculation Kit Technical Data Flow max Head max (feet) Head working pressure Maximum temperature Applications Circulation of water in · Hot water heating systems · Domestic water systems Stainless steel internals Low noise Plug and play construction 0-3.4 gpm 0-3.5' 145 psig 150 F

Small UP, UPS Wet-Rotor, In-Line, Single Stage Circulator Pump Technical Data Flow max Head max (feet) Head working pressure Maximum temperature Applications Circulation of water in · Heating systems · Cooling and air conditioning systems Cast iron construction 3-speed models available Variable speed models available 0-46 gpm 0-37' 145 psig 230 F

Small Open System Wet-Rotor, single Stage Circulator Pump Technical Data Flow max Head max (feet) Head working pressure Maximum temperature Applications Circulation of water in · Hot water heating systems · Domestic water systems Stainless, brass, or bronze housing 24-hour timer optional Adjustable thermostat optional 0-46 gpm 0-32.5' 145 psig 150 F

Multistage Centrifugal Pumps Also Offered with Variable Speed Technical Data Flow max Head max (feet) Head working pressure Maximum temperature Applications Process and HVAC applications Domestic water system booster service Compact design Low noise Suitable for slightly aggressive liquids Variable speed drive option 70 gpm 265' 145 psig 248 F

Complete Pressure Boosting System Single or Multiple Pump System Technical Data Flow max Head max (feet) Head working pressure Maximum temperature Applications Plug an play with all controls Program desired pressure Variable speed operation Constant pressure maintained Simple installation Low energy use, only runs as required 3800 gpm 500' 232 psig 176 F

Submersible Well Pumps Sizes 3", 4", 6", 8", 10" Technical Data Flow max Head max (feet) Install depth Maximum temperature Applications Ground water supply Soft start motor Over and under voltage protection Stainless steel construction for long life High starting torque Overload protection 1400 gpm 2100' 1968' 140 F

Information

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