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Brass automatic air vent model 67 with 1/8 inch male NPT bottom inlet

BELL AND GOSSETT

BELL AND GOSSETT 67 Automatic Air Vent Brass 1/8 MNPT equipment

SKU CH-QMVC-HJ412

Brass automatic air vent removes trapped air from water systems via 1/8 inch male NPT bottom inlet

  • Automatically removes trapped air from water systems using a brass float mechanism
  • Brass body resists corrosion for long service life in hydronic applications
  • 1/8 inch male NPT inlet allows direct installation into standard pipe fittings
  • Vertical mounting orientation ensures reliable venting at high points
  • Single-port configuration simplifies piping layout for air removal points

Product Identity

The Bell & Gossett 67 is a brass automatic air vent designed for water-based systems. It suits installers and maintenance teams who need reliable air removal in hydronic loops.

Pre-Installation Checks

Verify that the piping provides a 1/8 inch male NPT thread at the intended vent location. Confirm the media is water and that the mounting point allows a vertical orientation with the inlet at the bottom.

Build and Daily Use

The brass body resists corrosion in hot-water service and the single-port configuration keeps the footprint compact. Vertical mounting lets the float mechanism operate freely so trapped air escapes without manual bleeding.

Highlights

  • Automatically removes trapped air from water systems using a brass float mechanism
  • Brass body resists corrosion for long service life in hydronic applications
  • 1/8 inch male NPT inlet allows direct installation into standard pipe fittings
  • Vertical mounting orientation ensures reliable venting at high points
  • Single-port configuration simplifies piping layout for air removal points

Specifications

BrandBELL & GOSSETT

Questions about this item

What comes in the box with the BELL AND GOSSETT 67 Automatic Air Vent and is any additional piping or sealant required?

The package contains the brass automatic air vent with a 1/8 in male NPT inlet. Pipe thread sealant or tape must be purchased separately for a leak-free installation.

How do I decide which version of the model 67 air vent to select for my hydronic system?

This model 67 is a single configuration: brass body, one bottom-mounted 1/8 in male NPT port, designed for vertical installation on water systems. No alternative capacities or materials are offered.

What does the 1/8 in male NPT connection mean when I thread the vent into my boiler or piping?

It mates directly with a standard 1/8 in female NPT tapping. The bottom inlet and vertical orientation allow trapped air to escape while the float mechanism remains upright for reliable operation.

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