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.

Category Products

  • SKU: BH1260A
  • Ships within 2 business days

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.

Online Price: $1,392.23
Regular Price: $1,445.77

  • SKU: BH1260C
  • Ships within 2 business days

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.

Online Price: $1,519.01
Regular Price: $1,577.44

  • SKU: BH1260E
  • Ships within 2 business days

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.

Online Price: $1,638.79
Regular Price: $1,701.82

  • SKU: BH1260G
  • Ships within 2 business days

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.

Online Price: $1,701.40
Regular Price: $1,766.84

  • SKU: BH1260K
  • Ships within 2 business days

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.

Online Price: $1,902.83
Regular Price: $1,976.02

  • SKU: BH1260N
  • Ships within 2 business days

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.

Online Price: $2,093.40
Regular Price: $2,173.91

  • SKU: BH1260P
  • Ships within 2 business days

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.

Online Price: $2,479.95
Regular Price: $2,575.33

  • SKU: BH1260R
  • Ships within 2 business days

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.

Online Price: $2,880.12
Regular Price: $2,990.90

  • SKU: BH1261A
  • Ships within 2 business days

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.

Online Price: $1,467.28
Regular Price: $1,523.71

  • SKU: BH1261C
  • Ships within 2 business days

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.

Online Price: $1,543.50
Regular Price: $1,602.87

  • SKU: BH1261E
  • Ships within 2 weeks

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.

Online Price: $1,676.89
Regular Price: $1,741.39

  • SKU: BH1261G
  • Ships within 2 business days

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.

Online Price: $1,829.34
Regular Price: $1,899.70

  • SKU: BH1261K
  • Ships within 2 business days

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.

Online Price: $1,908.29
Regular Price: $1,981.68

  • SKU: BH1261M
  • Ships within 2 business days

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.

Online Price: $2,098.83
Regular Price: $2,179.56

  • SKU: BH1261P
  • Ships within 2 business days

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.

Online Price: $2,479.95
Regular Price: $2,575.33

  • SKU: BH1261T
  • Ships within 2 business days

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.

Online Price: $2,893.72
Regular Price: $3,005.02

  • SKU: BH1262A
  • Ships within 2 business days

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.

Online Price: $1,619.72
Regular Price: $1,682.02

  • SKU: BH1262C
  • Ships within 2 business days

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.

Online Price: $1,682.35
Regular Price: $1,747.05

  • SKU: BH1262E
  • Ships within 2 business days

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.

Online Price: $1,829.34
Regular Price: $1,899.70

  • SKU: BH1262G
  • Ships within 2 business days

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.

Online Price: $1,908.29
Regular Price: $1,981.68

  • SKU: BH1262H
  • Ships within 2 business days

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.

Online Price: $1,851.12
Regular Price: $1,922.31

  • SKU: BH1262K
  • Ships within 2 business days

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.

Online Price: $2,063.46
Regular Price: $2,142.82

  • SKU: BH1262M
  • Ships within 2 business days

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.

Online Price: $1,917.49
Regular Price: $1,991.24

  • SKU: BH1262P
  • Ships within 2 business days

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.

Online Price: $2,621.50
Regular Price: $2,722.33

  • SKU: BH1262T
  • Ships within 2 business days

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.

Online Price: $3,040.73
Regular Price: $3,157.68

  • SKU: BH1262V
  • Ships within 2 business days

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.

Online Price: $3,713.12
Regular Price: $3,855.93

  • SKU: BH1263C
  • Ships within 2 business days

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.

Online Price: $2,097.20
Regular Price: $2,177.87

  • SKU: BH1263E
  • Ships within 2 business days

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.

Online Price: $2,052.57
Regular Price: $2,131.51

  • SKU: BH1263G
  • Ships within 2 business days

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.

Online Price: $2,166.89
Regular Price: $2,250.24

  • SKU: BH1263H
  • Ships within 2 business days

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.

Online Price: $2,362.89
Regular Price: $2,453.77

  • SKU: BH1263P
  • Ships within 2 business days

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.

Online Price: $3,342.89
Regular Price: $3,471.47

  • SKU: BH1263T
  • Ships within 2 business days

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.

Online Price: $4,020.73
Regular Price: $4,175.37

  • SKU: BH1263V
  • Ships within 4 business days

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.

Online Price: $4,410.00
Regular Price: $4,579.62

  • SKU: BH1263X
  • Ships within 4 business days

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.

Online Price: $5,057.90
Regular Price: $5,252.44

  • SKU: BH1263Y
  • Ships within 4 business days

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.

Online Price: $5,945.34
Regular Price: $6,174.00

  • SKU: BH1264A
  • Ships within 2 business days

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.

Online Price: $2,218.61
Regular Price: $2,303.94

  • SKU: BH1264C
  • Ships within 2 business days

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.

Online Price: $2,373.78
Regular Price: $2,465.08

  • SKU: BH1264E
  • Ships within 2 business days

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.

Online Price: $2,553.46
Regular Price: $2,651.67

  • SKU: BH1264G
  • Ships within 2 business days

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.

Online Price: $3,076.12
Regular Price: $3,194.44

  • SKU: BH1264H
  • Ships within 2 business days

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.

Online Price: $3,517.12
Regular Price: $3,652.39

  • SKU: BH1264K
  • Ships within 2 business days

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.

Online Price: $4,194.95
Regular Price: $4,356.30

  • SKU: BH1264M
  • Ships within 4 business days

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.

Online Price: $4,584.23
Regular Price: $4,760.54

  • SKU: BH1264P
  • Ships within 4 business days

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.

Online Price: $5,223.95
Regular Price: $5,424.87

  • SKU: BH1264T
  • Ships within 4 business days

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.

Online Price: $6,114.12
Regular Price: $6,349.28

  • SKU: BH1264V
  • Ships within 4 business days

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.

Online Price: $7,309.18
Regular Price: $7,590.30

  • SKU: BH1264X
  • Ships within 10 business days

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.

Online Price: $8,327.28
Regular Price: $8,647.56

  • SKU: BH1265A
  • Ships within 2 business days

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.

Online Price: $1,739.50
Regular Price: $1,806.40

  • SKU: BH1265C
  • Ships within 2 business days

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.

Online Price: $1,848.39
Regular Price: $1,919.48

  • SKU: BH1265E
  • Ships within 2 business days

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.

Online Price: $1,962.73
Regular Price: $2,038.22

  • SKU: BH1265G
  • Ships within 2 business days

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.

Online Price: $1,868.15
Regular Price: $1,940.00

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Category Repair Parts

B&G Series 1531 Exploded View
B&G Series 1531 Exploded View
B&G Series 1531 Single Mechanical Seal
B&G Series 1531 Single Mechanical Seal
B&G Series 1531 Standard Seal Construction
B&G Series 1531 Standard Seal Construction
B&G Series 1531 Stuffing Box Construction
B&G Series 1531 Stuffing Box Construction

Category Information

Category Videos

Identifying Your Bell & Gossett Pump

Identifying Your Bell & Gossett Pump

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.