ASCO
ASCO™ 221 Slow-Closing Water Solenoid Valve
The ASCO Series 221, also known as 8221, with its unique slow-closing design, provides higher flow while increasing throughput in commercial applications. It reduces inventory by accommodating both hot and cold-water service, and is designed for quick, ea
Features and Advantages

•A specially designed snubber offers slower disc closing speed to protect systems against water hammer damage.

•Pressure spike due to water hammer is reduced to a point eliminating the need for suppressors or other controls in most water systems

•Hot water service to 150 psi (10 Bar) differential @ 210°F (100°C)

•Pilot-operated, normally open, or normally closed models are available with a full range of pipe sizes up to 2 1/2.

•Broad range of standard AC and DC voltages available


Specifications and Parameters

Valve Actuation:Solenoid

Body Material:Brass

Media:Water

Pipe / Port Size:3/8 "; 3/4 "; 1 "; 1 1/4 "; 1 1/2 "; 2 "; 2 1/2 "

Port Type:NPTF

Function:2 way - 2/2 Normally Closed; 2 way - 2/2 Normally Open

Voltage:110 AC; 115 AC; 12 DC; 120 AC; 120 DC; 208 AC; 220 AC; 230 AC; 24 AC; 24 DC; 240 AC; 240 DC; 440 AC; 48 DC; 480 AC; 6 DC - 50/60

Max Differential / Max Operating Pressure:Vacuum to 10.3 Bar; Vacuum to 150 PSIG; 150-500 PSIG; 10.3-34.5 Bar

Operating Environment:Corrosive; Hazardous; Indoor; Outdoor

Standards / Regulations:Class I Div 1; Class I Div 2; Class II Div 1; Class II Div 2; CSA; Type 1; Type 2; Type 3; Type 3R; Type 3S; Type 4; Type 4X; Type 6; Type 6P; Type 7; Type 9; UL

Flow:From 2.0 Cv to 6.0 Cv; From 6.0 Cv to 14.0 Cv; Over 14.0 Cv


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