Related illustrations

0866

Air Separators on Boiler

· p. 147

The illustration shows two cross sections of boiler heat exchangers with air separators, alongside a perspective cutaway of a gas-fired boiler heat exchanger and burners. In the upper cross section, air bubbles collect a

1150

Electric boiler

· p. 203

The illustration shows an electric boiler with three horizontal heating elements inside the boiler vessel. A circulating pump is installed on the cold-water return piping, which connects to the bottom of the boiler, whil

1654.5

Air admittance valve

· p. 293

The illustration shows an air admittance valve installed on a vertical riser from a basin's trap arm, with a minimum height of 4 inches indicated above the trap arm. Two enlarged valve cross-sections explain its operatio

1126

F & T trap (float and thermostat trap)

· p. 198

Three simplified cross sections illustrate the operating stages of a float and thermostat steam trap. In the first, the thermostat is open, allowing air to pass through the air passage toward the outlet while the float b

1128

Boiler feed pump

· p. 198

The cross section shows a steam-heating boiler feed pump with a vented receiver collecting water from the system returns. A motor-driven pump draws water from the bottom of the receiver and sends it through a check valve

1113

Boiler feed pump

· p. 194

A cross section shows a steam-heating boiler feed pump drawing water from a receiver and discharging it through a check valve to the boiler inlet. Condensate enters from the returns near the top of the receiver, which ha

0898.2

Hot water heating manifolds

· p. 155

The diagram shows paired supply and return manifolds for a hot water heating distribution system, each with six zone connections. Red piping carries water from the boiler into the supply manifold and out to the zones, wh

1110

Condensate pump

· p. 194

Two cutaway cross sections illustrate the off and on operating states of a steam-heating condensate pump assembly. Condensate enters a vented receiver from the return piping, and a float and linkage operate the pump swit