4.1.4 Typical installation
3
4
5
6
7
8
2
9
10
11
1
12
13
14
1. Expansion tank
2. B&G Rolairtrol
®
air separator
3. Supply to system
4. TPV Tank Purge Valve
5. B&G Triple Duty
®
valve
6. B&G Series e-1531 or e-1532 Pump
7. B&G Suction Diffuser
8. Isolation valve
9. Pipe from boiler, chiller, or converter
10.Cold water supply
11.B&G Pressure Reducing Valve
12.B&G Model 107A — High capacity vent
13.B&G #7 or #87 Air Vent
14.Drain valve
4.1.5 Special installation
Installation with suction diffuser and triple-duty valve
Do not install and operate triple-duty valves and suction diffusers in closed systems unless
the system is designed with these safety and control devices:
• Pressure relief valves
• Compression tanks
• Pressure controlling equipment
• Temperature controlling equipment
• Flow controlling equipment
Check that the control and safety devices have these characteristics:
• Properly sized for their purpose
• Placed correctly in the system before putting the system into operation
Installation with isolation base
When using an isolation base, flexible piping should be used on both suction and
discharge sides to reduce the strain on the flanges.
4 Installation
Series e-1531 and e-1532 INSTRUCTION MANUAL
15
Summary of Contents for e-1531 Series
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