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Watts 11/4 AS-M1 T Inline Air Separator - Inline Air Separators
WattsInline Air Separators

Watts 11/4 AS-M1 T Inline Air Separator

The Watts Air Separator with Cast Iron Body (MPN 11/4 AS-M1 T) is an inline air separator designed for water systems. It features a 1 1/4 in Female NPT connection, horizontal orientation, and a maximum pressure of 80…

SKU 3G-OTH-70836

Also listed as: 114ASM1T · 11 4 AS M1 T · 11-4-AS-M1-T

Brand
Watts
Item
11/4 AS-M1 T Inline Air Separator
Part Number
11/4 AS-M1 T
Category
Inline Air Separators
Available to Order
Also known as:11/4 AS-M1 TWatts
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Watts
Manufacturer Part Number
11/4 AS-M1 T
Type
For Water, Horizontal
Max
275°F
Max.
80 psi
Female NPT
1 1/4 in
Product Type
Air Separator

Technical Documents

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

Product Description

The Watts Air Separator with Cast Iron Body (MPN 11/4 AS-M1 T) is an inline air separator designed for water systems. It features a 1 1/4 in Female NPT connection, horizontal orientation, and a maximum pressure of 80 psi with a maximum temperature of 275°F.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a Watts air separator used for?

A Watts air separator removes entrained air and micro-bubbles from water in hydronic heating and cooling systems. It improves system efficiency, reduces noise, and prevents corrosion by eliminating trapped air that can cause flow restrictions and pump damage.

What are the specifications of the Watts 11/4 AS-M1 T air separator?

The Watts 11/4 AS-M1 T air separator has a cast iron body, 1 1/4 in Female NPT connections, horizontal orientation, maximum pressure of 80 psi, and maximum temperature of 275°F. It is designed for water systems and manufactured by Watts.

Where to buy a Watts air separator worldwide?

3G Electric supplies the Watts 11/4 AS-M1 T air separator to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this and other industrial equipment across 14 departments.

How to install a Watts inline air separator?

Install the Watts air separator horizontally in the main supply line, typically at the highest point of the system where air collects. Ensure flow direction matches the arrow on the body. Use thread sealant on the 1 1/4 in Female NPT connections and follow local plumbing codes.

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 inline air separators. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Iron hot water pressure relief valve with 3/4 in NPTF x NPTF connections. Rated for 20 psi maximum operating pressure. Overall height 3 1/2 in. ASME Section XIII rated for hot water service. Used to protect water heaters and boilers from overpressure in commercial and industrial hot water systems
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ASME Section XIII hot water pressure relief valve with 1 1/2 in NPTF inlet and 2 in NPTF outlet, constructed of iron. Maximum operating pressure of 30 psi. Overall height of 9 1/4 in. Used to protect hot water heaters and boilers from overpressure conditions in commercial or industrial systems
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This ASME Section XIII hot water pressure relief valve features a 1 1/4 in x 1 1/2 in NPTF x NPTF iron body. Rated for a maximum operating pressure of 30 psi, it automatically opens to discharge excess water and prevent overpressure in hot water systems. Suitable for use in commercial and industrial water heating applications

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