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Watts 1/8 DUO-VENT NPT Vertical-Discharge Air Vent - Vertical-Discharge Air Vents
WattsVertical-Discharge Air Vents

Watts 1/8 DUO-VENT NPT Vertical-Discharge Air Vent

The Watts 1/8 DUO-VENT NPT is a one-port, vertical-discharge air vent designed for water systems. It features a brass body with a 1/8 in MNPT top port and a maximum pressure rating of 150 psi and maximum temperature…

SKU 3G-OTH-69998

Also listed as: 18DUOVENTNPT · 1 8 DUO VENT NPT · 1-8-DUO-VENT-NPT

Brand
Watts
Item
1/8 DUO-VENT NPT Vertical-Discharge Air Vent
Part Number
1/8 DUO-VENT NPT
Category
Vertical-Discharge Air Vents
Available to Order
Also known as:1/8 DUO-VENT NPTWatts
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Watts
Manufacturer Part Number
1/8 DUO-VENT NPT
Type
Top Port, For Water, Brass Body, Bottom
MNPT
1/8 in
Max.
150 psi
Product Type
Air Vent

Technical Documents

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Watts Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Watts 1/8 DUO-VENT NPT is a one-port, vertical-discharge air vent designed for water systems. It features a brass body with a 1/8 in MNPT top port and a maximum pressure rating of 150 psi and maximum temperature of 240°F.

Frequently Asked Questions

What is the Watts 1/8 DUO-VENT NPT air vent used for?

The Watts 1/8 DUO-VENT NPT is a one-port, vertical-discharge air vent used to automatically release trapped air from water systems. It is commonly installed on hydronic heating loops, radiators, and hot water lines to prevent air locks and improve system efficiency.

What are the specifications of the Watts 1/8 DUO-VENT NPT?

The Watts 1/8 DUO-VENT NPT has a brass body with a 1/8 in MNPT top port. It is rated for a maximum pressure of 150 psi and a maximum temperature of 240°F. This air vent is designed for water systems and features a vertical-discharge configuration.

Where to buy the Watts 1/8 DUO-VENT NPT worldwide?

You can source the Watts 1/8 DUO-VENT NPT through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this Watts air vent.

How to install the Watts 1/8 DUO-VENT NPT air vent?

Install the Watts 1/8 DUO-VENT NPT by threading the 1/8 in MNPT top port into a compatible female fitting on the water system. Ensure the vent is oriented vertically for proper discharge. Apply thread sealant to prevent leaks and verify the system pressure does not exceed 150 psi.

Used in

Common applications for Watts
Commercial plumbing – Watts standard capacity water pressure regulators (3/8 LF 26AB) for stabilizing incoming water pressure
Industrial steam systems – Watts 152A series steam pressure regulators for pressure reduction in process and heating lines
Cross-connection control – Watts 757 double check backflow preventers for commercial and industrial water supply protection
Boiler safety – Watts ASME Section XIII temperature and pressure relief valves for overpressure protection in heating systems
Hydronic heating – Watts CP16 pilot-operated pressure regulators for maintaining consistent pressure in steam or water loops
Water hammer mitigation – Watts LF15M2-A water hammer arrestors for absorbing surges in quick-closing valve applications
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Watts Products

3G Electric supplies Watts 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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