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The Grundfos ALPHA series circulator pumps adapt to the variable demands of a system without sacrificing comfort. Using the AUTOADAPT feature, the Grundfos ALPHA will analyze the system and adjust to meet your heating demands. By incorporating a permanent magnet motor design, power consumption is now reduced by 50%. Features: AUTOADAPT measures system changes automatically and maximizes energy savings Easy-to-use operation Select a mode with the touch of a button Easy-to-read LED display shows flow indication and power consumption Simple plug connections No wiring required Terminal box for conduit connection applications GRUNDFOS ALPHA SERIES CIRCULATOR PUMPS Model Comparison Chart Model Pipe Connection (GF) HP Voltage Construction GPM Max. Head ALPHA 15-55F 15/26 1/16 115 Cast Iron 21 19' ALPHA 15-55SFC 15/26 1/16 115 Stainless Steel 21 19' ALPHA2 15-55SF/LC 15/26 1/16 115 Stainless Steel 21 19' PERFORMANCE CURVES FEATURES SPECIFICATIONS DIMENSIONS TROUBLESHOOTING SERIES OVERVIEW Grundfos ALPHA Series Circulator Pump Series Overview INSTRUCTIONS Grundfos ALPHA Series Circulator Pump Instructions Pump Products application engineers are standing by to help you find the right pump, as well as to provide price quotes, stocking availability and shipping information. Call our toll free number 1-800-429-0800 to speak to an expert today.

Grundos UP series circulator pumps are one, two and three speed circulator pumps that are suitable for a wide range of cooling and heating applications including hot water, geothermal, radiant panel and snow melting in large residential and light commercial installations. They are made of durable cast iron, bronze and stainless steel and are engineered for quiet operation, yield superior operating efficiency and facilitate rapid field-repair. Features:   Built-in motor protection for long life Multiple accessories for a variety of applications Whisper-quiet operation for sound sensitive installations GRUNDFOS UP SERIES CIRCULATOR PUMPS Model Comparison Chart Model Pump Connection (GF Flange) HP Voltage Construction GPM Max. Head UP15-42FR 15/26 1/25 115 Cast Iron 17.2 15.1' UP15-42F 15/26 1/25 115 Cast Iron UP15-10FR 15/26 1/25 115 Cast Iron 7.93 5.58' UP15-10F 15/26 1/25 115 Cast Iron 7.93 5.58' UP15-42FR 15/26 1/25 230 Cast Iron 17.2 15.1' UP15-100F 15/26 1/25 115 Cast Iron 8.5 33.5' UP15-18B5 1/2" 1/25 115 Bronze 14.5 13.8' UP 15-10B5 1/2" 1/25 115 Bronze 8.37 6.23' UP15-18B5 1/2" 1/25 230 Bronze 14.5 13.8' UP15-10B7 3/4" 1/25 115 Bronze 8.37 6.23' UP15-18B7 3/4" 1/25 115 Bronze 14.7 13.9' UP15-10B7/LC 3/4" 1/25 115 Bronze 8.37 6.23' UP15-29SF 2 1/12 115 Stainless Steel 20.7 9.84' UP15-29SU 1/12 230 Stainless Steel UP15-29SU 1-1/4" 1/12 115 Stainless Steel 20.7 9.84' 15-10BUC7 3/4" 1/25 115 Bronze 6.6 6.56' UP 15-10BUC5/LC 1/2" 1/25 115 Bronze 6.6 6.56' UP 15-10B5/TLC 1/2" 1/25 115 Bronze 8.37 6.23' UP 15-18B5/TLC 1/2" 1/25 115 Bronze 14.5 13.8' UP15-42B5 1/2" 1/25 230 Bronze 17.2 15.1' UP26-64F 2 1/12 115 Cast Iron 32.1 24.6' UP 15-18 B7/TLC 3/4" 1/25 115 Bronze 14.5 13.8' UP26-64F 2 1/12 230 Cast Iron 32.1 24.6' UP26-96F 2 1/12 115 Cast Iron 28.2 29.9' UP 15-10BUC5/TLC 1/2" 1/25 115 Bronze 6.6 6.56' UP26-99F 2 1/6 115 Cast Iron 33.9 32.2' UP26-96F 2 1/12 230 Cast Iron 28.2 29.9' UP15-42 BUC7 3/4' 1/25 115 Bronze 17 15' UP26-99F 15/26 1/6 230 cast Iron UP26-116F 2 1/6 230 Cast Iron 37 37' UP15-29SUC/TLC 1-1/4" 1/12 115 Stainless Steel 20.7 9.84' UP15-29SUC/TLC 3/4" 1/12 115 Stainless Steel UP43-44F 2 1/6 115 Cast Iron 67.8 13.5' UP50-75F 4" 1/6 115 Cast Iron 40.9 24.9' UP43-75F 2" 1/6 115 Cast Iron 17.6 15.4' UP15-55SUC 1-1/4" 1/13 230 Stainless Steel 21.6 17.1' UP15-42F/VS 15/26 1/25 115 Cast Iron UP15-42FC/MR 2" 1/25 115 Cast Iron 34 23' UP26-116BF 2" 1/6 230 Stainless Steel 37 37' UP26-96SF 1/12 115 Stainless Steel UP26-96SF 2" 1/12 230 Stainless Steel 28.2 29.9' UP26-99SF 15/26 1/6 115 Stainless Steel UP26-99SF 2" 1/6 230 Stainless Steel 33.9 32.2' UP43-44BF 2" 1/6 115 Bronze 67.8 13.5' UP15-42 BUC5/MR 1/2" 1/25 115 Bronze 13.5 15' UP15-42 BUC7/MR 3/4" 1/25 115 Bronze 13.5 15' UP 53-45F 2" 1/2 115/230 Cast Iron 14.8' UP43-110F 3/4 115/230 Cast Iron 36.1' PERFORMANCE CURVES PUMP IDENTIFICATION CROSS REFERENCE TROUBLESHOOTING BROCHURE Grundfos UP Series Circulator Pump Brochure INSTRUCTIONS Grundfos UP Series Circulator Pump Instructions Pump Products application engineers are standing by to help you find the right pump, as well as to provide price quotes, stocking availability and shipping information. Call our toll free number 1-800-429-0800 to speak to an expert today.