401 Series 3-Way NC or 4-Way, Direct Mount Pilot Valve
Manufacturer: Asco LP
Mfg Product Code:
The ASCO Series 401, also known as 8401, is a line of pilot-operated air slide valves designed for air and inert gas service in heating equipment applications. The aluminum valves incorporate a unique sliding and sealing member that provides a durable and non-stick sealing method. Optional flow control regulates cylinder speed in either direction and permits adjustable Cv from 0.2 to 0.8.
Features
- Mount directly to actuators with NAMUR, Keystone, or Worcester interfaces
- Easy conversion from AC to DC by simply changing coil
- Standard momentary/maintained manual operator
- 3/2 is normally closed poppet design for spring return actuators
- 3/2 normally closed or 4/2 operation can be selected by rotating sub-base gasket
- 3/2 normally closed or 4/2 valves have built-in linear flow device capable of controlling Cv from 0.10 to 0.50
- Breather block exhausts to spring side of actuator to prevent corrosion of the actuator
- Unique CA slide and ceramic flow plate for extra-long life
401 Series 3-Way NC or 4-Way, Direct Mount Pilot Valve
Valve Brand:Asco
Pipe Size:1/4in
Actuation:Solenoid - Air Pilot
Body Material:Molded PA
Core and Plugnut:430F SS
Core Tube:305 SS
Enclosure Type:Watertight, Explosionproof & Watertight
Flow Factor (Cv):0.50
Flow Plate:Ceramic
Interface Plate:Molded PA
Media:Air-Inert Gas
Min Pressure (psi):20
Max Pressure (psi):150
Min Temperature °F:0
Max Temperature °F:104
Mounting Position:Direct Mount
Orifice:1/4in
Pilot Valve Body:Molded CA
Pressure Port:303 SS
Seal Material:Low-Friction, Low-Wear NBR
Slide Material:Graphite-Filled PTFE
Spool Material:CA
Springs:302 SS
Valve Function:3-Way Normally Closed, 4-Way
Specifications
| 8401 Series DM Air Slide Valves | |
|---|---|
| Product Specifications | [B202M] NAMUR Interface | 1/4" Pipe | 1/4" Orifice | 2.3 Cv Flow or [B204M] Keystone Interface | 1/4" Pipe | 1/4" Orifice | 4.1 Cv Flow or [B200M] Worcester Interface | 1/4" Pipe | 1/4" Orifice | 7.6 Cv Flow |
| Options | [EF] Explosionproof & Watertight or [SC] Molded Epoxy Coil per 3 x DIN 46244 or [U] Molded Epoxy Open Frame Class F Coil with 18” Leads or [WT] Watertight |
| Optional Lead Type | Standard or [L] Continuous Leads |
| Lead Length | Standard or 18" [D] or 72" [K] |
| Voltage | AC24/60 or AC110/50 or AC120/60 or AC120/60,110/50 or AC220/50 or AC240/60 or AC240/60,220/50 or DC6/DC or DC12/DC or DC24/DC or DC120/DC or DC240/DC |
| Valve Features | |
|---|---|
| Valve Brand | Asco |
| Pipe Size | 1/4in |
| Actuation | Solenoid - Air Pilot |
| Body Material | Molded PA |
| Core and Plugnut | 430F SS |
| Core Tube | 305 SS |
| Enclosure Type | Watertight, Explosionproof & Watertight |
| Flow Factor (Cv) | 0.50 |
| Flow Plate | Ceramic |
| Interface Plate | Molded PA |
| Media | Air-Inert Gas |
| Min Pressure (psi) | 20 |
| Max Pressure (psi) | 150 |
| Min Temperature °F | 0 |
| Max Temperature °F | 104 |
| Mounting Position | Direct Mount |
| Orifice | 1/4in |
| Pilot Valve Body | Molded CA |
| Pressure Port | 303 SS |
| Seal Material | Low-Friction, Low-Wear NBR |
| Slide Material | Graphite-Filled PTFE |
| Spool Material | CA |
| Springs | 302 SS |
| Valve Function | 3-Way Normally Closed, 4-Way |