NO. 87, 67, and 7 AUTOMATIC AIR VENTS – are designed to vent the accumulation of troublesome air wherever it can be trapped.
These non-ferrous automatic air vents are 4-3/4″x2-1/4″, 3-3/16″x1-1/2″, and 4-1/6″x2-3/16″(height and width), respectively, and are rated for a maximum operating temperature of 240°F at pressures of 150, 35, and 75 PSI, respectively.
The No. 87 has a combination of 1/2″ FPT / 3/4″MPT connection, whereas No’s. 67 and 7 have 1/8″ MPT and 1/8″ FPT connections, respectively.
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