Product description, General description, Operational specifications – Bell & Gossett P81567F Series 1531 User Manual
Page 12: General description operational specifications

Product Description
General description
The Series 1531 pump is a centrifugal, close-coupled pump. These features make the
pump easy to install, operate, and service:
• High efficiency
• Rugged bronze-fitted construction
• Foot-mounted motor
Intended applications
WARNING:
California Proposition 65 warning! This product contains chemicals known to the state of
California to cause cancer and birth defects or other reproductive harm.
NOTICE:
This product is not intended for potable water applications.
The pump is intended for use with these pumped fluids:
• Unheated domestic and fresh water
• Boiler feed water
• Condensate
• Hydronic cooling or heating
• Benign liquids
• Pressure boosting
• General liquid transfer
Rotation
Pump rotation is clockwise when viewed from the back of the motor. An arrow is also
located on the pump to show the direction of rotation.
Operational specifications
Mechanical seal specifications
This table describes the specifications of each mechanical seal type.
Seal type
Parameter
Value
Standard seals, BUNA carbon/ceramic pH range limits for BUNA
pH 7–9
Liquid temperature range that
complies with the pH range limits for
BUNA
-20˚F to 225˚F (-29˚C to 107˚C)
Optional seals, EPR carbon/tungsten
carbide
pH range limits for EPR
pH 7–11
Liquid temperature range that
complies with the pH range limits for
EPR
-20˚F to 250˚F (-29˚C to 121˚C)
EPR/SiC/SiC
pH range limits
pH 7–12.5
Liquid temperature range
-20˚F to 250˚F (-29˚C to 121˚C)
Product Description
10
Series 1531 Installation, Operation, and Maintenance Manual