Flexible spring noise dampening coupler adds to quiet operation
• Long bronze sleeve bearings maintain shaft alignment & longer life
• Precision ground pump shaft, oversized to provide large bearing surfaces ensuring long seal and bearing life
• CentrifuGallon impeller prevents air build-up at seal faces to assure long life
• Close tolerances minimize water seepage and maximum efficiency
• 3-part pump assembly and 2-part motor bracket make servicing system quick and easy
• 3-piece design
• Carbon on ceramic mechanical seal
• Heat treated carbon steel shaft
• Carbon steel shaft
  

  Bell & Gossett B51-4

The pumps shall be of the horizontal, permanently lubricated type, specifically designed and guaranteed for quiet operation
• The pumps shall have a steel shaft supported by permanently lubricated, sealed precision ball bearings
• The pumps are to be equipped with a water-tight seal to prevent leakage
• Mechanical seal faces to be carbon on silicon carbide
• The motor shall be non-overloading at any point on the pump performance curve
• The motor shall be of the drip-proof, sealed precision ball bearing, quiet operating construction
• The permanent split-capacitor motor shall be equipped with thermal overload protection
• The series PL features a maintenance-free system, with a self-cleaning particle shield protects the shaft and bearings from system start-up debris
• Easily handles dirty water conditions
• 25% more efficient than competition
• Close coupled dry motor
  

  Bell & Gossett PL-36

Bell & Gossett PL-30B

Stainless steel face plate
• The pumps shall be of the horizontal, permanently lubricated type, specifically designed and guaranteed for quiet operation
• The pumps shall have a steel shaft supported by permanently lubricated, sealed precision ball bearings. Mechanical seal faces to be carbon on silicon carbide
• The pumps are to be equipped with a water-tight seal to prevent leakage
• The motor shall be of the drip-proof, sealed precision ball bearing, quiet operating construction
• The permanent split-capacitor motor shall be equipped with thermal overload protection
• EPDM seal
  

  Bell & Gossett PL-30

The pumps shall be of the horizontal, permanently lubricated type, specifically designed and guaranteed for quiet operation
• The pumps shall have a steel shaft supported by permanently lubricated, sealed precision ball bearings
• The pumps are to be equipped with a water-tight seal to prevent leakage
• Mechanical seal faces to be carbon on silicon carbide
• The motor shall be non-overloading at any point on the pump performance curve
• The motor shall be of the drip-proof, sealed precision ball bearing, quiet operating construction
• The permanent split-capacitor motor shall be equipped with thermal overload protection
• The series PL features a maintenance-free system, with a self-cleaning particle shield protects the shaft and bearings from system start-up debris
• Easily handles dirty water conditions
• 25% more efficient than competition
• Close coupled dry motor
  

  Bell & Gossett PL30

Grundfos UP15-29SU

High efficiency ECM motor uses up to 85% less electricity
• Infinitely variable speed settings to fine tune flow for any system
• Six pressure presets to fit the job
• Sure Start automatic unblocking and air purging mode
• Fixed speed infinitely adjustable min/max settings
• Constant pressure variable speed 3 constant pressure differential curves (5, 10 or 15 feet of head)
• Proportional pressure variable speed 3 variable pressure differential curves (High, Med or Low)
• Multi-color LED display showing operating mode and error code diagnostics
• Use with a Taco ZVC zone valve control or SR switching relay for On/Off operation
• Nut capture feature on flanges for easier fit up
• Whisper quiet operation for sound sensitive installations
  

  Taco VR1816

Operates in 5 different modes: Delta-T differential temperature, 4 fixed speeds, set point heat, set point cool and boiler protection
• Full speed over-ride
• Full backlit LCD display
• High-efficiency ECM motor uses up to 85% less electricity
  

  Taco VT2218-HY1-FC1A01

Taco 0015-MSF3-IFC

1BL002

Double sintered carbon bearing
• Ceramic shaft
• High starting torque provides years of trouble-free start-ups
• Unique B&G DuraGlide bearing system assures whisper quiet, maintenance-free operation
• Closed impeller design improves operating efficiency
• Wet rotor circulator
• Stabilized, heat resistant, non-metallic impeller, Its closed design improves operating efficiency
• Self cleaning particle shield protects the shaft and bearings from system start-up debris

Bell & Gossett 103350

The pumps shall have a ceramic shaft supported by carbon bearings, bearings are to be lubricated by the circulating fluid
• Pump body shall be lead-free bronze for NBF circulators or stainless steel for SSF circulators
• Pump body shall be lead-free bronze for NBF circulators or stainless steel for SSF circulators
• Motors shall be non-overloading at any point on the pump curve, all motors to have built-in impedance protection
• Low-watt, energy conserving models
• High starting torque provides dependable start-ups
• B&G Dura-Glide bearing system assures whisper-quiet, maintenance-free operation
• Standard, universal flange-to-flange dimensions
  

  Bell & Gossett 103252