Air Preparation

EMERSON ASCO

The 342 series offer a combination of high-flow capabilities, precise pressure regulation, and contamination prevention. This makes it a reliable and cost effective solution for maintaining the efficiency of your processes.

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Filter/Regulator 342 Compact Series Port Size: 1/4”

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Regulator 342 High Flow Series Port Size: 1/4” to 1”

The 641, 642 & 643 series are high-flow aluminum filter regulators designed to provide effective filtration and precise pressure regulation for valve automation and process instrumentation. Their rugged coated aluminum construction is designed for harsh process environments with flow capacities up to 10,500 L/min across the range.

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Pilot Operated, NC / NO 210 Series Port Size: 3/8” to 2-1/2” Brass or SS304 / SS316L

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Pilot Operated, NC / NO 220 / 221 / 222 Series Port Size: 1/4” to 2” Brass or SS304

4-way SOV

The 342, 344 & 345 series provide reliable 4-way directional control for double-acting pneumatic cylinders and actuators. Available in compact, high-flow and robust poppet/slide designs, the range delivers fast switching and dependable performance for industrial automation and process control applications.

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Direct Operated 4-Way 342 Series, 4/2 way Port Size: 1/4" to 3/8” Brass or SS303

3/2-way Spool Valve

3/2-Way SOV

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Air / Pilot Operated 551 - 553 Series, NC Port Size: 1/4” to 1/2” Aluminum

Angle seat & Pulse Valve

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Pressure Operated, 2/2 NC 290 series Port Size: 1/2” to 2” Bronze or SS316

The 327, 327C, 316 & 320 series provide reliable direct-acting and directional solenoid control for pneumatic actuators, process valves and instrumentation systems. Offering fast response, high-flow capability and robust performance, the range supports demanding industrial and process control applications.

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Direct Acting, NO 262 / 263 Series Port Size: 1/8” to 3/8” Brass or SS304

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High-Flow Pilot Operated 316 Series 3/2 way, NC / NO Port Size: 3/8” to 1” Brass

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Pilot Operated 4-Way 345 Series, 4/2 way Port Size: 1/4" Brass or SS316

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Air Operated, Spool Type 541 Series, 5/2 / 5/3 Subbases 1/4” to 3/8” Aluminum

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High-Flow Direct-Acting 327 Series, 3/2 Universal, SIL 3 capable Port Size: 1/4” & 1/2” SS316L

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Direct Acting 320 Series 3/2 Universal, NC / NO Port Size: 1/8" to 1/4” Brass or SS303

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High-Flow Poppet 4-Way 344 Series, 4/2 way Port Size: 1/4" to 1” Brass

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Pilot Operated, Spool Type 531 Series, 3/2 / 5/2 Port Size: 1/4” / NAMUR Aluminum

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Aluminum Filter/Regulator 643 Series Port Size: 3/4” & 1”

The 290 & 353 Series provide reliable solutions for demanding fluid control and filtration applications. The 290 Series Angle Seat Valves deliver high-flow control of liquids, gases and steam, while the 353 Series Pulse Valves provide fast, high-flow air pulses for efficient dust collector and filter cleaning systems.

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High Flow Dust Collector 353 Series Port Size: 3/4” to 3” Aluminum or SS316

The 551, 553, 531, 541 series provide reliable 3/2 and 5/2 directional control for pneumatic actuators and automation systems. Offering compact to high-flow configurations, the range delivers fast response and dependable operation for industrial, process and valve automation applications.


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Aluminum Filter/Regulator 641 Series Port Size: 1/4” 3/8” & 1/2”


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Filter/Regulator 342 High Flow Series Port Size: 1/4” to 1”

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Filter 342 High Flow Series Port Size: 1/4” to 1”

2/2-Way SOV

The 210, 238, 262, 263, 220, 221, 222 & 240 series provide versatile 2/2-way solenoid control, ranging from compact direct-acting and general-purpose design to high-flow, hot water and steam solutions for demanding industrial applications.

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Aluminum Filter/Regulator 642 Series Port Size: 1/4” & 1/2”

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Pilot Operated, NC / NO 238 Series Port Size: 3/8” to 2” Brass or SS304

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High-Flow Direct-Acting Next-Gen 327C Series 3/2 Universal, SIL 3 capable Port Size: 1/4” SS316L

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Direct-Acting / Pilot Operated 240 Series, NC / NO Port Size: 1/8” to 1” Brass