Representative photo. Please check item description for details.
Description
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, easy maintenance. Apply
the 221 Series with confidence in high and low-temperature applications
found in laundries, molding, sterilizers and autoclaves.
Features
- 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
| Asco 8221 NO | |
|---|---|
| Product Specifications | 3/8" Pipe | 9/16" Orifice | 3 Cv Flow, 1/2" Pipe | 9/16" Orifice | 3.5 Cv Flow, 3/4" Pipe | 3/4" Orifice | 5.5 Cv Flow, 1" Pipe | 1" Orifice | 11.5 Cv Flow, 1-1/4" Pipe | 1-1/8" Orifice | 13 Cv Flow, 1-1/2" Pipe | 1-1/4" Orifice | 24 Cv Flow, 2" Pipe | 1-3/4" Orifice | 36 Cv Flow, 2-1/2" Pipe | 1-3/4" Orifice | 38 Cv Flow |
| Solenoid Option | None, Explosionproof, Junction Box, Factory Assembled Junction Box, Factory Assembled Junction Box & Explosionproof, 1/2" Conduit, Factory Assembled Junction Box & Explosionproof, 3/4" Conduit, Open Frame Spade and Screw Terminal Solenoids |
| Coil Options | None, Class H - High Temperature, Class F - High Temperature - Screw Terminals, Class H - High Temperature - Screw Terminals, Class F - High Temperature - DIN Connection, Class F - High Temperature - Spade Terminals, Class H - High Temperature - Spade Terminals, Class H - High Temperature - DIN Connection |
| Optional Lead Type | Standard, Continuous Leads |
| Lead Length | Standard, 18" Leads, 72" Leads |
| Optional Hot Water Construction | Without, Hot Water Construction (G021, G023, G025), Hot Water Construction (G027, G029, G031, G033, G035) |
| Voltage | AC24/60, AC110/50, AC120/60, AC220/50, AC240/60, DC12/DC, DC24/DC, DC120/DC, DC240/DC |
| Valve Features | |
|---|---|
| Valve: Brand | Asco |
| Valve: Pipe Size | 3/8 in, 1/2 in, 3/4 in, 1 in, 1-1/4 in, 1-1/2 in, 2 in, 2-1/2in |
| Valve: Actuation | Solenoid - Pilot Operated |
| Valve: Body Material | Copper Alloy |
| Valve: Core and Plugnut | Stainless Steel |
| Valve: Disc Material | EPDM, PTFE |
| Valve: Enclosure Type | Redhat II - Watertight, Redhat II - Explosionproof & Watertight, Redhat - Explosionproof & Raintight |
| Valve: Media | Water |
| Valve: Orifice | 9/16in, 3/4in, 1in, 1-1/8in, 1-1/4in, 1-3/4in |
| Valve: Seal Material | EPDM, PTFE |
| Valve: Shading Coil | Copper, Silver |
| Valve: Springs | Stainless Steel |
| Valve: Function | 2-Way Normally Closed |
| Valve: Core Tube | Stainless Steel |
| Valve: Piston Material | Stainless Steel, PTFE |