Asco

ASCO operates today as a brand within Emerson's Automation Solutions business, supplying solenoid valves, pneumatic valves, actuators, and fluid control components built around the long-running RedHat product family.

The brand's catalog spans more than 50,000 engineered valve configurations, reflecting a product range built up over decades of industrial automation and fluid control work, with continued development carried out under Emerson's ownership.

Product Lines

ASCO's RedHat line includes the Series 8210, available in general service and pilot-operated gas shutoff configurations for commercial and industrial gas burner control, with NPT connection sizes on the gas shutoff variant running from 3/8 inch to 3/4 inch.

The Series 8262 and 8263 cover smaller direct-acting, two-way general service solenoid valves with NPT connection sizes from 1/8 inch to 3/8 inch, while the broader Emerson-ASCO catalog extends into hot water and steam valves, low ambient valves, and pneumatic actuators for industrial control applications.

Why Contractors Specify ASCO

Mechanical and process contractors specify ASCO solenoid valves for fluid control points where reliable shutoff and a long-running design history matter, particularly on gas, water, steam, and air systems where a valve failure creates downstream problems.

Because the RedHat 8210 series covers both general service and pilot-operated gas shutoff applications, contractors working on commercial or industrial gas burner systems can often source both control types from the same valve family, simplifying parts familiarity across a job.

How to Choose ASCO Products

Selecting between the 8210 and 8262/8263 series largely comes down to connection size and application: the 8210 fits general service and gas shutoff applications up to 3/4 inch NPT, while the 8262 and 8263 suit smaller 1/8 inch to 3/8 inch connections where a compact, direct-acting valve is preferred.

Body material should match the fluid being controlled, and AC or DC operation should be confirmed against the available control voltage before ordering, since both series offer multiple electrical configurations.

Frequently Asked Questions

What is the difference between ASCO Series 8210 and Series 8262 valves?

The 8210 series covers general service and pilot-operated gas shutoff applications with NPT connections up to 3/4 inch, while the 8262 and 8263 series are smaller direct-acting, two-way general service valves with connections from 1/8 inch to 3/8 inch.

What is the ASCO Series 8210 used for in gas applications?

The pilot-operated version of the 8210 series is built for gas shutoff duty on commercial and industrial gas burner systems, controlling fuel flow as part of the burner's safety and control sequence.

Is ASCO part of Emerson?

Yes, ASCO operates as a brand within Emerson's Automation Solutions business, and ASCO valves and fluid control products are sold and supported through Emerson's catalog and distribution network.

What does RedHat mean on an ASCO valve?

RedHat is the long-standing product family name under which ASCO markets many of its solenoid valves, including the 8210, 8262, and 8263 series.

Does ASCO make valves beyond solenoid valves for gas and water service?

Yes, the broader ASCO catalog through Emerson includes pneumatic valves, actuators, hot water and steam valves, and low ambient valves designed for a range of industrial fluid and gas control applications.