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BELL & GOSSETT Vertical-Discharge Air Vent, 1/2 in FNPT, Brass Body, 150 psi Max - Vertical-Discharge Air Vents
BELL & GOSSETTVertical-Discharge Air Vents

BELL & GOSSETT Vertical-Discharge Air Vent, 1/2 in FNPT, Brass Body, 150 psi Max

The BELL & GOSSETT Air Vent: One Port is a vertical-discharge air vent designed for water systems. It features a 1/2 in FNPT top port and a brass body, with a maximum pressure rating of 150 psi and a maximum…

SKU 3G-OTH-70030

Brand
BELL & GOSSETT
Item
Vertical-Discharge Air Vent, 1/2 in FNPT, Brass Body, 150 psi Max
Part Number
87
Category
Vertical-Discharge Air Vents
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Technical Specifications

BELL & GOSSETT
Manufacturer Part Number
87
Type
Top Port, For Water, Brass Body, Bottom
FNPT
1/2 in
Max.
150 psi
Product Type
Air Vent

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BELL & GOSSETT Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BELL & GOSSETT Air Vent: One Port is a vertical-discharge air vent designed for water systems. It features a 1/2 in FNPT top port and a brass body, with a maximum pressure rating of 150 psi and a maximum temperature of 240°F. This model, MPN 87, is a single-port unit with a bottom connection.

Frequently Asked Questions

What is the BELL & GOSSETT Air Vent 87 used for?

The BELL & GOSSETT Air Vent 87 is used to automatically release trapped air from water systems, preventing air locks and improving system efficiency. It is commonly installed on hydronic heating and cooling systems, boilers, and piping networks where air removal is critical for proper circulation and performance.

What are the specifications of the BELL & GOSSETT Air Vent 87?

The BELL & GOSSETT Air Vent 87 is a single-port, vertical-discharge air vent with a 1/2 in FNPT top port and a brass body. It is rated for water service up to 150 psi maximum pressure and 240°F maximum temperature. The bottom connection allows for inline installation on piping or equipment.

Where to buy the BELL & GOSSETT Air Vent 87 worldwide?

3G Electric supplies the BELL & GOSSETT Air Vent 87 to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this model to any country.

How to install the BELL & GOSSETT Air Vent 87?

Install the BELL & GOSSETT Air Vent 87 at the highest point of the water system where air naturally collects. Use thread sealant on the 1/2 in FNPT connection and tighten securely. Ensure the vent is oriented vertically for proper discharge. Follow standard piping practices and consult local codes for safe operation.

Used in

Common applications for BELL & GOSSETT
Hydronic heating systems — Bell & Gossett three-piece inline circulator pumps (e.g., SKU 788NP7) for closed-loop water circulation.
Potable water recirculation — Bronze Bell & Gossett circulator pumps (e.g., SKU 422W64) for domestic water systems.
Steam distribution — Bell & Gossett thermostatic steam traps (e.g., 8C-A-3-125) for condensate removal at 125 psi.
Debris protection — Bell & Gossett brass Y strainers (e.g., 420C series) installed upstream of pumps and valves.
Variable-flow hydronic systems — Bell & Gossett ECM circulating pumps (e.g., SKU 795F78) for energy-efficient flow control.
Low-pressure steam lines — Bell & Gossett angle thermostatic steam traps (e.g., 17C-A-3-25) rated for 25 psi and 162 lb/hr.
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BELL & GOSSETT Products

3G Electric supplies BELL & GOSSETT vertical-discharge air vents. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Iron sealing fitting for vertical or horizontal mounting in conduit systems. 3 in trade size with male NPT threads (3 in FNPT x 3 in MNPT). Rated for Class III hazardous locations. UL 886 listed
APPLETON ELECTRIC
Iron sealing fitting for vertical or horizontal mounting in conduit systems. 3 in trade size with male NPT threads (3 in FNPT x 3 in MNPT). Rated for Class III hazardous locations. UL 886 listed
Iron sealing fitting for vertical or horizontal conduit runs, with 1/2 in FNPT x 1/2 in MNPT threaded connections. Rated for 25% fill and UL 886 listed for use in Class II, Division 1 and 2, Groups E, F, G hazardous locations. Overall length 3 1/4 in
APPLETON ELECTRIC
Iron sealing fitting for vertical or horizontal conduit runs, with 1/2 in FNPT x 1/2 in MNPT threaded connections. Rated for 25% fill and UL 886 listed for use in Class II, Division 1 and 2, Groups E, F, G hazardous locations. Overall length 3 1/4 in
Iron sealing fitting for vertical and horizontal conduit runs, rated for 40% fill. Features 1-1/2 in FNPT x 1-1/2 in MNPT threaded ends with NPT threads. UL 886 listed for Class I, Division 1 and 2, Groups B, C, D hazardous locations. Used to seal conduit systems against passage of gases, vapors, or flames
APPLETON ELECTRIC
Iron sealing fitting for vertical and horizontal conduit runs, rated for 40% fill. Features 1-1/2 in FNPT x 1-1/2 in MNPT threaded ends with NPT threads. UL 886 listed for Class I, Division 1 and 2, Groups B, C, D hazardous locations. Used to seal conduit systems against passage of gases, vapors, or flames

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