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Watts LF150A Water Hammer Arrestor, 1/2 in NPT, Stainless Steel - Water Hammer Arrestors
WattsWater Hammer Arrestors

Watts LF150A Water Hammer Arrestor, 1/2 in NPT, Stainless Steel

The WATTS Water Hammer Arrestor (MPN LF150A) is a stainless steel device with a 1/2 in pipe size and NPT connections. It measures 4 5/16 in overall height and 3 7/16 in overall diameter.

SKU 3G-OTH-440119

Brand
Watts
Item
LF150A Water Hammer Arrestor, 1/2 in NPT, Stainless Steel
Part Number
LF150A
Category
Water Hammer Arrestors
Available to Order
Also known as:LF150AWatts
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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

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

Watts
Manufacturer Part Number
LF150A
Type
NPT
UNSPSC
40141719
Overall Ht
4 5/16 in
Overall Dia
3 7/16 in
Body Material
Stainless Steel
Connection Type
NPT
Country of Origin
USA (subject to change)

Technical Documents

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3G Electric (S) Pte. Ltd. — Singapore

Product Description

The WATTS Water Hammer Arrestor (MPN LF150A) is a stainless steel device with a 1/2 in pipe size and NPT connections. It measures 4 5/16 in overall height and 3 7/16 in overall diameter.

Frequently Asked Questions

What is a WATTS water hammer arrestor used for?

A WATTS water hammer arrestor absorbs the shock wave when a valve closes suddenly, preventing pipe banging and protecting plumbing systems. The LF150A model with 1/2 in NPT connections is commonly installed on washing machines, dishwashers, and commercial fixtures to reduce noise and stress on piping.

What are the specifications of the WATTS LF150A water hammer arrestor?

The WATTS LF150A water hammer arrestor has a 1/2 in pipe size with NPT connections, a stainless steel body, an overall height of 4 5/16 in, and an overall diameter of 3 7/16 in. It is designed for residential and light commercial plumbing systems to mitigate water hammer.

Where to buy a WATTS water hammer arrestor worldwide?

3G Electric supplies the WATTS LF150A water hammer arrestor to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this stainless steel arrestor with 1/2 in NPT connections.

How to install a WATTS water hammer arrestor?

Install the WATTS LF150A water hammer arrestor on the hot or cold water line near the quick-closing valve, using the 1/2 in NPT connection. Mount it vertically or horizontally with the piston chamber oriented upward. Ensure the arrestor is accessible for future maintenance and sized per local plumbing code.

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 water hammer arrestors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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This water hammer arrestor features a brass body with 1-inch NPT connections. It measures 12 11/16 inches in overall height and 2 1/8 inches in diameter. Designed to absorb shock and prevent water hammer in piping systems, it protects valves, fittings, and pipes from pressure surges caused by sudden flow stoppage
Watts
This water hammer arrestor features a brass body with 1-inch NPT connections. It measures 12 11/16 inches in overall height and 2 1/8 inches in diameter. Designed to absorb shock and prevent water hammer in piping systems, it protects valves, fittings, and pipes from pressure surges caused by sudden flow stoppage

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