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Bell & Gossett Series 1531 pumps are custom-built end-suction and close-coupled pumps with a base-mounted design with a heavy duty cast iron volute construction for 175 psi. They are available in bronze-fitted, for general heating and potable water, and bronze-body pumps for food service applications. Series 1531 pumps come in 1-1/4'' through 6'' pipe sizes, 1150, 1750, or 3500 RPM motors, and are available with 3/4 HP to 60 HP motors. They feature a mechanical seal construction, self-flushing mechanical seals, external flush tubing, a precision-fitted balanced and enclosed impeller, and gauge tappings on the suction and discharge flanges. The Series 1531's back pull-out design allows one service tech ease of maintenance.
This Bell & Gossett Series 1531 model 1-1/4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 1-1/2" NPT end suction, and a 1-1/4" NPT top discharge. Its motor is three phase, 1 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 1-1/2" NPT end suction, and a 1-1/4" NPT top discharge. Its motor is three phase, 1-1/2 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 1-1/2" NPT end suction, and a 1-1/4" NPT top discharge. Its motor is three phase, 2 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 1-1/2" NPT end suction, and a 1-1/4" NPT top discharge. Its motor is three phase, 3 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 1-1/2" NPT end suction, and a 1-1/4" NPT top discharge. Its motor is three phase, 5 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 1-1/2" NPT end suction, and a 1-1/4" NPT top discharge. Its motor is three phase, 7-1/2 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 1-1/2" NPT end suction, and a 1-1/4" NPT top discharge. Its motor is three phase, 10 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 1-1/2" NPT end suction, and a 1-1/4" NPT top discharge. Its motor is three phase, 15 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2" NPT end suction, and a 1-1/2" NPT top discharge. Its motor is three phase, 1 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2" NPT end suction, and a 1-1/2" NPT top discharge. Its motor is three phase, 1-1/2 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2" NPT end suction, and a 1-1/2" NPT top discharge. Its motor is three phase, 2 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2" NPT end suction, and a 1-1/2" NPT top discharge. Its motor is three phase, 3 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2" NPT end suction, and a 1-1/2" NPT top discharge. Its motor is three phase, 5 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2" NPT end suction, and a 1-1/2" NPT top discharge. Its motor is three phase, 7-1/2 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2" NPT end suction, and a 1-1/2" NPT top discharge. Its motor is three phase, 10 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 1-1/2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2" NPT end suction, and a 1-1/2" NPT top discharge. Its motor is three phase, 15 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2-1/2" NPT end suction, and a 2" NPT top discharge. Its motor is three phase, 1 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2-1/2" NPT end suction, and a 2" NPT top discharge. Its motor is three phase, 1-1/2 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2-1/2" NPT end suction, and a 2" NPT top discharge. Its motor is three phase, 2 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2-1/2" NPT end suction, and a 2" NPT top discharge. Its motor is three phase, 3 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2-1/2" NPT end suction, and a 2" NPT top discharge. Its motor is three phase, 3 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2-1/2" NPT end suction, and a 2" NPT top discharge. Its motor is three phase, 5 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2-1/2" NPT end suction, and a 2" NPT top discharge. Its motor is three phase, 7-1/2 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2-1/2" NPT end suction, and a 2" NPT top discharge. Its motor is three phase, 10 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 2-1/2" NPT end suction, and a 2" NPT top discharge. Its motor is three phase, 15 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-5/8" shaft size, 2-1/2" NPT end suction, and a 2" NPT top discharge. Its motor is three phase, 20 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 3AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 4" NPT end suction, and a 3" NPT top discharge. Its motor is three phase, 1-1/2 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 3AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 4" NPT end suction, and a 3" NPT top discharge. Its motor is three phase, 2 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 3AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 4" NPT end suction, and a 3" NPT top discharge. Its motor is three phase, 3 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 3AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 4" NPT end suction, and a 3" NPT top discharge. Its motor is three phase, 5 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 3AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 4" NPT end suction, and a 3" NPT top discharge. Its motor is three phase, 15 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 3AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-5/8" shaft size, 4" NPT end suction, and a 3" NPT top discharge. Its motor is three phase, 20 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 3AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-5/8" shaft size, 4" NPT end suction, and a 3" NPT top discharge. Its motor is three phase, 25 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 3AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-5/8" shaft size, 4" NPT end suction, and a 3" NPT top discharge. Its motor is three phase, 30 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 3AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-5/8" shaft size, 4" NPT end suction, and a 3" NPT top discharge. Its motor is three phase, 40 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 5" NPT end suction, and a 4" NPT top discharge. Its motor is three phase, 2 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 5" NPT end suction, and a 4" NPT top discharge. Its motor is three phase, 3 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 5" NPT end suction, and a 4" NPT top discharge. Its motor is three phase, 5 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 5" NPT end suction, and a 4" NPT top discharge. Its motor is three phase, 7-1/2 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 5" NPT end suction, and a 4" NPT top discharge. Its motor is three phase, 15 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-5/8" shaft size, 5" NPT end suction, and a 4" NPT top discharge. Its motor is three phase, 20 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-5/8" shaft size, 5" NPT end suction, and a 4" NPT top discharge. Its motor is three phase, 25 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-5/8" shaft size, 5" NPT end suction, and a 4" NPT top discharge. Its motor is three phase, 30 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-5/8" shaft size, 5" NPT end suction, and a 4" NPT top discharge. Its motor is three phase, 40 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-5/8" shaft size, 5" NPT end suction, and a 4" NPT top discharge. Its motor is three phase, 50 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 4AC is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-5/8" shaft size, 5" NPT end suction, and a 4" NPT top discharge. Its motor is three phase, 60 HP, 3500 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2-1/2AB is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 3" NPT end suction, and a 2-1/2" NPT top discharge. Its motor is three phase, 1 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2-1/2AB is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 3" NPT end suction, and a 2-1/2" NPT top discharge. Its motor is three phase, 1-1/2 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2-1/2AB is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 3" NPT end suction, and a 2-1/2" NPT top discharge. Its motor is three phase, 2 HP, 1750 RPM, and 208-230/460/60/3.
This Bell & Gossett Series 1531 model 2-1/2AB is a base-mounted centrifugal pump used for commercial hydronic heating and cooling. This pump features a 1-1/4" shaft size, 3" NPT end suction, and a 2-1/2" NPT top discharge. Its motor is three phase, 3 HP, 1750 RPM, and 208-230/460/60/3.
Do you have a Bell & Gossett pump you need to repair? First, you need to determine what pump you have. Bell & Gossett manufacturers hundreds of different pumps, from small residential boosters to large base-mounted centrifugal pumps. Properly identifying your pump is critical to maintaining its good health. In this video, the Pump Doctor will go through a few B&G pumps and explain what the different cast numbers, tags, and labels all mean.
