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Watts 3/4 NF8 Hose Bibb Vacuum Breaker - Hose Bibb Vacuum Breakers
WattsHose Bibb Vacuum Breakers

Watts 3/4 NF8 Hose Bibb Vacuum Breaker

The WATTS Vacuum Breaker (SKU 3G-OTH-440058) is a hose bib vacuum breaker with Female GHT x Male GHT connections, designed for back-siphonage protection in water media. It features a brass body, rubber seal, manual…

SKU 3G-OTH-440058

Also listed as: 34NF8 · 3 4 NF8 · 3-4-NF8

Brand
Watts
Item
3/4 NF8 Hose Bibb Vacuum Breaker
Part Number
3/4 NF8
Category
Hose Bibb Vacuum Breakers
Available to Order
Also known as:3/4 NF8Watts
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Technical specs
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Watts
Manufacturer Part Number
3/4 NF8
Type
For Water Media, 33°F – 180°F, Brass, Back-Siphonage
For Media
Water
Standards
ANSI A112.1.3 (ASSE 1011)
Drain Type
Manual
Body Material
Brass
Seal Material
Rubber
Connection Type
Female GHT x Male GHT
Protection Type
Back-Siphonage
Freeze Protection
Yes
Vacuum Breaker Style
Hose Bib Vacuum Breaker
Hazard Protection Level
High Health Hazard
Connection Type - Side 1
GHT
Connection Type - Side 2
GHT
Includes Atmospheric Vent
No Atmospheric Vent
Includes Drain Capability
Manual Drain
Connection Gender - Side 1
Female
Connection Gender - Side 2
Male
Includes Freeze Protection
Freeze Protection Included

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

Product Description

The WATTS Vacuum Breaker (SKU 3G-OTH-440058) is a hose bib vacuum breaker with Female GHT x Male GHT connections, designed for back-siphonage protection in water media. It features a brass body, rubber seal, manual drain, and freeze protection, with a temperature range of 33°F – 180°F. This model meets ANSI A112.1.3 (ASSE 1011) standards and is rated for high health hazard protection.

Frequently Asked Questions

What is the WATTS Vacuum Breaker 3/4 NF8 used for?

The WATTS Vacuum Breaker 3/4 NF8 is used for back-siphonage protection in water systems, preventing contaminated water from flowing backward into potable supply lines. It is commonly installed on hose bibbs in commercial and residential settings, with a brass body and freeze protection for outdoor use.

What are the specifications of the WATTS Vacuum Breaker 3/4 NF8?

The WATTS Vacuum Breaker 3/4 NF8 has Female GHT x Male GHT connections, a brass body, rubber seal, and manual drain. It operates from 33°F to 180°F, provides high health hazard protection against back-siphonage, includes freeze protection, and meets ANSI A112.1.3 (ASSE 1011) standards.

Where to buy the WATTS Vacuum Breaker 3/4 NF8 worldwide?

You can source the WATTS Vacuum Breaker 3/4 NF8 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 times on this Watts model.

How to install the WATTS Vacuum Breaker 3/4 NF8?

Install the WATTS Vacuum Breaker 3/4 NF8 by threading the male GHT end onto a compatible hose bibb and attaching a hose to the female GHT end. Ensure the manual drain is accessible for winterization. Follow local plumbing codes and the manufacturer's instructions for proper back-siphonage protection.

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 hose bibb vacuum breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Hose bibb vacuum breaker with brass body and rubber seal. Provides back-siphonage protection for water systems, rated for high health hazard. Features manual drain and freeze protection. Connections: Female GHT x Male GHT. Temperature range: 33°F to 180°F. Complies with ANSI A112.1.3 (ASSE 1011)
Watts
Hose bibb vacuum breaker with brass body and rubber seal. Provides back-siphonage protection for water systems, rated for high health hazard. Features manual drain and freeze protection. Connections: Female GHT x Male GHT. Temperature range: 33°F to 180°F. Complies with ANSI A112.1.3 (ASSE 1011)

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