We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
RFQ CartGet a QuoteSign inSign up
Watts Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass - Lead-Free Hose Bibb Vacuum Breakers
WattsLead-Free Hose Bibb Vacuum Breakers

Watts Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass

The WATTS Lead-Free Hose Bibb Vacuum Breaker (SKU 30UK52, MPN 3/4 LF8BI) is a back-siphonage protection device for water media, constructed with a brass body and silicone seals. It features Female GHT x Male GHT…

SKU 3G-OTH-439344

Brand
Watts
Item
Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass
Category
Lead-Free Hose Bibb Vacuum Breakers
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Watts
Manufacturer Part Number
3/4 LF8BI
Type
For Water Media, 33°F – 180°F, Brass, Back-Siphonage
For Media
Water
Standards
cCSAus B64.2
Drain Type
Manual
Body Material
Brass
Seal Material
Silicone
Seat Material
Brass
Connection Type
Female GHT x Male GHT
Protection Type
Back-Siphonage
Freeze Protection
Yes
Security Mechanism
Break-Away Set Screw
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
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The WATTS Lead-Free Hose Bibb Vacuum Breaker (SKU 30UK52, MPN 3/4 LF8BI) is a back-siphonage protection device for water media, constructed with a brass body and silicone seals. It features Female GHT x Male GHT connections, a manual drain, and includes freeze protection. Certified to cCSAus B64.2 for high health hazard applications, it incorporates a break-away set screw security mechanism and operates without an atmospheric vent.

Frequently Asked Questions

What is the WATTS 3/4 LF8BI vacuum breaker used for?

The WATTS 3/4 LF8BI lead-free hose bibb vacuum breaker prevents back-siphonage of contaminated water into potable water lines. It is designed for high health hazard applications, such as outdoor hose connections, and is certified to cCSAus B64.2 for water media.

What are the specifications of the WATTS 3/4 LF8BI vacuum breaker?

The WATTS 3/4 LF8BI has a brass body with silicone seals, female GHT x male GHT connections, and a manual drain. It includes freeze protection and a break-away set screw security mechanism. Operating temperature range is 33°F to 180°F. It is certified to cCSAus B64.2 for high health hazard back-siphonage protection.

Where to buy the WATTS 3/4 LF8BI vacuum breaker worldwide?

3G Electric supplies the WATTS 3/4 LF8BI vacuum breaker 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 on this lead-free hose bibb vacuum breaker.

How to install the WATTS 3/4 LF8BI vacuum breaker?

Install the WATTS 3/4 LF8BI by threading the male GHT end onto a compatible female hose bibb. Tighten securely by hand, then use the break-away set screw to lock the device in place. Ensure the manual drain is oriented downward for freeze protection. Test for leaks after installation.

Used in

Common applications for Watts
Industrial burner gas safety systems — Watts HF2000 filters with GF-series seal kits maintain clean, regulated gas supply to burner pilot and main flame controls
Commercial heating and boiler installations — Modular filter assemblies support preventive maintenance and component replacement without full system shutdown
Process gas delivery pipelines — DN25 through DN125 filter bodies accommodate varying flow rates and inlet pressures across manufacturing and chemical processes
Gas pressure regulation benches — Multi-stage Watts filter platforms integrate with pressure reducers and safety shutoff valves in test and calibration environments
Equipment retrofit and upgrade projects — Available connection sizes and seal kits enable adaptation of newer Watts components into legacy gas control systems
Planned maintenance and spare-parts inventory — Filter seal kits allow facilities to stock consumables in advance, reducing downtime during scheduled gas system servicing

Watts Products

3G Electric supplies Watts lead-free hose bibb vacuum breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 8BC). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Body Finish: Chrome-Plated; Security Mechanism: Break-Away Set Screw.
Watts
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 8BC). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Body Finish: Chrome-Plated; Security Mechanism: Break-Away Set Screw.
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 3/4 8FR). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Break-Away Set Screw; Includes Drain Capability: Manual Drain.
Watts
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 3/4 8FR). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Break-Away Set Screw; Includes Drain Capability: Manual Drain.
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 8BI). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Break-Away Set Screw; Includes Drain Capability: Manual Drain.
Watts
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 8BI). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Break-Away Set Screw; Includes Drain Capability: Manual Drain.
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 3/4 8A). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Non-Removable; Includes Drain Capability: Manual Drain.
Watts
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 3/4 8A). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Non-Removable; Includes Drain Capability: Manual Drain.
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 3/4 NF8). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Includes Drain Capability: Manual Drain; Protection Type: Back-Siphonage.
Watts
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 3/4 NF8). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Includes Drain Capability: Manual Drain; Protection Type: Back-Siphonage.
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 8B). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Break-Away Set Screw; Includes Drain Capability: Manual Drain.
Watts
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 8B). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Break-Away Set Screw; Includes Drain Capability: Manual Drain.

More from Watts

View all Watts parts →
WATTS Atmospheric Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Female, GHT (MPN LF8AC). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Body Finish: Chrome-Plated; Security Mechanism: Non-Removable.
Watts
WATTS Atmospheric Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Female, GHT (MPN LF8AC). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Body Finish: Chrome-Plated; Security Mechanism: Non-Removable.
WATTS Atmospheric Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Female, GHT (MPN LF8A). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Non-Removable; Includes Drain Capability: Manual Drain.
Watts
WATTS Atmospheric Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Female, GHT (MPN LF8A). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Non-Removable; Includes Drain Capability: Manual Drain.
WATTS Hose Connection Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass (MPN LF8FR). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Break-Away Set Screw; Includes Drain Capability: Manual Drain.
Watts
WATTS Hose Connection Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass (MPN LF8FR). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Break-Away Set Screw; Includes Drain Capability: Manual Drain.
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 3/4 LFNF8). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Break-Away Set Screw; Includes Drain Capability: Manual Drain.
Watts
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, Back-Siphonage (MPN 3/4 LFNF8). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Break-Away Set Screw; Includes Drain Capability: Manual Drain.
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Reinforced Thermoplastic (MPN 3/4 8P). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Set Screw; Includes Drain Capability: Manual Drain.
Watts
WATTS Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Reinforced Thermoplastic (MPN 3/4 8P). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Set Screw; Includes Drain Capability: Manual Drain.
WATTS Atmospheric Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, GHT (MPN LF8FR). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Break-Away Set Screw; Includes Drain Capability: Manual Drain.
Watts
WATTS Atmospheric Vacuum Breaker: Female GHT x Male GHT, For Water Media, 33°F – 180°F, Brass, GHT (MPN LF8FR). Key specifications — Connection Gender - Side 1: Female; Connection Gender - Side 2: Male; Connection Type - Side 1: GHT; Connection Type - Side 2: GHT; Includes Atmospheric Vent: No Atmospheric Vent; Includes Freeze Protection: Freeze Protection Included; Security Mechanism: Break-Away Set Screw; Includes Drain Capability: Manual Drain.