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Watts 1 AS-M1 T Inline Air Separator - Inline Air Separators
WattsInline Air Separators

Watts 1 AS-M1 T Inline Air Separator

The Watts Air Separator with Cast Iron Body is an inline air separator designed for water systems. It features a 1-inch Female NPT connection, horizontal orientation, and a maximum pressure rating of 80 psi with a…

SKU 3G-OTH-70957

Also listed as: 1ASM1T · 1 AS M1 T · 1-AS-M1-T

Brand
Watts
Item
1 AS-M1 T Inline Air Separator
Part Number
1 AS-M1 T
Category
Inline Air Separators
Available to Order
Also known as:1 AS-M1 TWatts
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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
1 AS-M1 T
Type
For Water, Horizontal
Max
275°F
Max.
80 psi
Female NPT
1 in
Product Type
Air Separator

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

Product Description

The Watts Air Separator with Cast Iron Body is an inline air separator designed for water systems. It features a 1-inch Female NPT connection, horizontal orientation, and a maximum pressure rating of 80 psi with a maximum temperature of 275°F. This unit is identified by manufacturer part number 1 AS-M1 T.

Frequently Asked Questions

What is a Watts air separator used for?

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

What are the specifications of the Watts 1 AS-M1 T air separator?

The Watts 1 AS-M1 T air separator has a cast iron body, 1 in female NPT connections, horizontal orientation, maximum pressure 80 psi, and maximum temperature 275°F. It is designed for water systems and carries the Watts brand.

Where to buy a Watts air separator worldwide?

3G Electric supplies the Watts 1 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 model.

How to install a Watts inline air separator?

Install the Watts air separator horizontally in the main system supply line, typically after the boiler or chiller. Ensure flow direction matches the arrow on the body. Use pipe sealant on the 1 in female NPT connections and support the cast iron body to avoid stress.

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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