Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
Watts 957-AG Air Gap for Series 957 Reduced Pressure Zone Assemblies - Air Gaps
WattsAir Gaps

Watts 957-AG Air Gap for Series 957 Reduced Pressure Zone Assemblies

The Watts 957-AG Air Gap is a plastic air gap accessory designed for use with Series 957 Reduced Pressure Zone Assemblies. It features a female NPT connection and is compatible with the 957 series of reduced pressure…

SKU 3G-OTH-444555

Also listed as: 957AG · 957 AG

Brand
Watts
Item
957-AG Air Gap for Series 957 Reduced Pressure Zone Assemblies
Category
Air Gaps
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

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
957-AG
Type
957, Plastic, Reduced Pressure Zone Assemblies, Female, NPT
Product Type
Air Gap
Compatible with Series
957
Compatible Product Type
Reduced Pressure Zone Assemblies

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 957-AG Air Gap is a plastic air gap accessory designed for use with Series 957 Reduced Pressure Zone Assemblies. It features a female NPT connection and is compatible with the 957 series of reduced pressure zone assemblies.

Frequently Asked Questions

What is the Watts 957-AG Air Gap used for?

The Watts 957-AG Air Gap is a plastic accessory designed for use with Series 957 Reduced Pressure Zone Assemblies. It provides a physical separation between the discharge piping and the flood rim, preventing backflow contamination in commercial and industrial water systems.

What are the specifications of the Watts 957-AG Air Gap?

The Watts 957-AG Air Gap is a plastic air gap accessory compatible with Series 957 Reduced Pressure Zone Assemblies. It features a female NPT connection and is designed for use with reduced pressure zone assemblies. The manufacturer part number is 957-AG.

Where to buy the Watts 957-AG Air Gap worldwide?

3G Electric supplies the Watts 957-AG Air Gap to customers worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this air gap for your reduced pressure zone assembly needs.

How to install the Watts 957-AG Air Gap?

Install the Watts 957-AG Air Gap by connecting it to the discharge port of a Series 957 Reduced Pressure Zone Assembly using the female NPT threads. Ensure the air gap is positioned above the flood rim to maintain proper separation. Follow local plumbing codes and the manufacturer's guidelines for safe 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 air gaps. 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 →

Compatible alternatives & equivalents

Cross-referenced by specification & description
Repair part for Watts Series 009 backflow preventers, model 009-909-AG-A. Features a 1/2-inch female NPT connection. Used to maintain a physical air gap in backflow prevention assemblies for potable water systems
Watts
Repair part for Watts Series 009 backflow preventers, model 009-909-AG-A. Features a 1/2-inch female NPT connection. Used to maintain a physical air gap in backflow prevention assemblies for potable water systems
Cast iron air gap fitting with 1/4 inch NPT connection on side 1. Designed for use with 975XL/975XL2 series pressure principle backflow preventers to create a physical air gap between the preventer and a drain, preventing backflow contamination in water systems
ZURN
Cast iron air gap fitting with 1/4 inch NPT connection on side 1. Designed for use with 975XL/975XL2 series pressure principle backflow preventers to create a physical air gap between the preventer and a drain, preventing backflow contamination in water systems
Cast iron air gap fitting with NPT connections, designed for use with 975XL and 975XL2 series pressure principle backflow preventers. Complies with ANSI/ASME A112.1.2. Creates a physical air gap between the backflow preventer and discharge point to prevent backflow contamination in water systems
ZURN WILKINS
Cast iron air gap fitting with NPT connections, designed for use with 975XL and 975XL2 series pressure principle backflow preventers. Complies with ANSI/ASME A112.1.2. Creates a physical air gap between the backflow preventer and discharge point to prevent backflow contamination in water systems
Nylon air gap fitting with 1/2 in connection size on Side 1, designed for use with Series 375 and 375XL pressure principle backflow preventers. Creates a physical air gap between the backflow preventer and a drain or discharge point to prevent backflow contamination in plumbing systems
ZURN WILKINS
Nylon air gap fitting with 1/2 in connection size on Side 1, designed for use with Series 375 and 375XL pressure principle backflow preventers. Creates a physical air gap between the backflow preventer and a drain or discharge point to prevent backflow contamination in plumbing systems
Standard configuration reduced pressure zone backflow preventer with 8-inch flanged connections. Constructed with a stainless steel body and equipped with NRS (non-rising stem) gate valve shut-offs. Used in commercial and industrial water systems to prevent backflow of contaminated water into potable supplies, such as in fire sprinkler, irrigation, and boiler feed applications
Watts
Standard configuration reduced pressure zone backflow preventer with 8-inch flanged connections. Constructed with a stainless steel body and equipped with NRS (non-rising stem) gate valve shut-offs. Used in commercial and industrial water systems to prevent backflow of contaminated water into potable supplies, such as in fire sprinkler, irrigation, and boiler feed applications
Standard-configuration reduced pressure zone assembly with stainless steel body. Flanged connections for 2-1/2 inch pipe. Equipped with non-rising stem (NRS) gate valve shut-off. Used in commercial and industrial water systems to prevent backflow of contaminated water into potable supplies
Watts
Standard-configuration reduced pressure zone assembly with stainless steel body. Flanged connections for 2-1/2 inch pipe. Equipped with non-rising stem (NRS) gate valve shut-off. Used in commercial and industrial water systems to prevent backflow of contaminated water into potable supplies

More from Watts

View all Watts parts →
Cast iron air gap with female NPT connections, designed for use with 009M2 Series Reduced Pressure Zone Assemblies. Provides physical separation between supply and discharge piping to prevent backflow in water systems
Watts
Cast iron air gap with female NPT connections, designed for use with 009M2 Series Reduced Pressure Zone Assemblies. Provides physical separation between supply and discharge piping to prevent backflow in water systems
Cast iron air gap accessory designed for use with Series 909M1 Reduced Pressure Zone Assemblies. Features female NPT connections to provide a physical separation between water supply and potential contaminants, preventing backflow in plumbing systems
Watts
Cast iron air gap accessory designed for use with Series 909M1 Reduced Pressure Zone Assemblies. Features female NPT connections to provide a physical separation between water supply and potential contaminants, preventing backflow in plumbing systems
Cast iron air gap with female NPT connections, designed for use with Series 909M1 Reduced Pressure Zone Assemblies. Provides physical separation between potable and non-potable water to prevent backflow in commercial and industrial plumbing systems
Watts
Cast iron air gap with female NPT connections, designed for use with Series 909M1 Reduced Pressure Zone Assemblies. Provides physical separation between potable and non-potable water to prevent backflow in commercial and industrial plumbing systems
Cast iron air gap with female NPT connections, designed for use with 009M1 Series Reduced Pressure Zone Assemblies. Provides physical separation between the assembly and a drain to prevent backflow in water systems. Suitable for commercial plumbing, irrigation, and industrial process lines
Watts
Cast iron air gap with female NPT connections, designed for use with 009M1 Series Reduced Pressure Zone Assemblies. Provides physical separation between the assembly and a drain to prevent backflow in water systems. Suitable for commercial plumbing, irrigation, and industrial process lines
This cast iron air gap accessory is designed for use with Series 909 Reduced Pressure Zone Assemblies. It provides a physical separation between the relief valve discharge and a drain to prevent backflow contamination. Connections are female NPT
Watts
This cast iron air gap accessory is designed for use with Series 909 Reduced Pressure Zone Assemblies. It provides a physical separation between the relief valve discharge and a drain to prevent backflow contamination. Connections are female NPT
Bronze air gap with female NPT connections, designed for use with Series 995 reduced pressure zone assemblies. Provides physical separation in backflow prevention systems to prevent contamination of potable water supplies. Compatible with 009, 009M2, 009M3, and 995 series assemblies
Watts
Bronze air gap with female NPT connections, designed for use with Series 995 reduced pressure zone assemblies. Provides physical separation in backflow prevention systems to prevent contamination of potable water supplies. Compatible with 009, 009M2, 009M3, and 995 series assemblies