Vent-Rite 77 Main Vent

Vent-Rite 77 Main Vent delivers dependable automatic air release for straight-line piping systems. The Vent-Rite 77 Main Vent is a positive-action main vent designed for automatic operation, ensuring air is vented efficiently as system pressure fluctuates.

Crafted from durable nickel plated brass, this main vent pairs long-lasting resilience with precise performance. It features a 3/4 inch by 1/2 inch inlet (male x female threaded) for straightforward installation, and a non-adjustable vent port of 1/8 inch. With a compact 4-5/8 inch height and a 3.5 PSI pressure rating, it suits many residential hydronic and heating applications even in tight spaces.

Ideal for residential boilers, radiant floor systems, and other straight-line hydronic circuits, the Vent-Rite 77 Main Vent helps prevent air locks, reduces noise, and maintains efficient system operation.

• Type: Positive Action, Straight Line, Automatic
• Inlet: 3/4" x 1/2" (Male x Female Threaded)
• Port: Non-Adjustable Vent Port 1/8"
• Material: Nickel Plated Brass
• Pressure Rating: 3.5 PSI
• Height: 4-5/8"