ASCO™ Series 321 Solenoid Valves

Valve Actuation: Solenoid – Air Pilot
Body Material: Brass, Stainless Steel
Media: Air, Inert Gas, Light Oil, Water
The ASCO Series 321 valves are designed for quick venting to 0 psi through their external orifice.
ATEX, IECEx certifications for operation in hazardous conditions

Category: Pilot Valves

Valve Actuation: Solenoid – Air Pilot
Body Material: Brass, Stainless Steel
Media: Air, Inert Gas, Light Oil, Water
Pipe / Port Size: 1/4 “; 3/8 “
Port Type: NPTF
Function: 3 way – 3/2 Normally Closed, 3 way – 3/2 Normally Open
Flow: From .05-.1 Cv, From 0.1 Cv to 0.5 Cv, From .43 to .86 Kv, From .86 to 1.73 Kv
Voltage: 100 to 240 AC/DC Voltage Ranging, 12 to 24 DC Voltage Ranging, 125 DC Battery Charging, 110 AC, 12 DC, 120 AC, 120 DC, 24 AC, 24 DC, 24 to 120 AC/DC Voltage Ranging, 240 DC, 250 DC Battery Charging | 50, 50/60, 60
Operating Environment: Corrosive, Indoor, Outdoor
Standards / Regulations: ATEX Zone 1-21, ATEX Zone 2-22, CSA, IEC Ex Zone 1-21, SIL, Type 1, Type 2, Type 3, Type 3S, Type 4, Type 4X, Type 6, Type 6P, Type 7, Type 9, UL

At a glance:

The ASCO Series 321 valves are designed for quick venting to 0 psi through their external orifice.
Air is exhausted to rapidly shift control valves.
The pilot-operated valves have resilient seated poppets for tight shutoff.
They are well suited for refining, chemical, and food and beverage applications that require a quick-exhaust valve.

Features:

Valves are available in voltage-ranging and harsh-environment constructions
Next Gen solenoid models available that reduce power consumption, increase AC and DC operating temperatures, and extend coil life
Mountable in any position for flexible installation
ATEX, IECEx certifications for operation in hazardous conditions

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