ASCO

Emerson ASCO Solenoid Valve Series D144

Total Isolation Valve

The Emerson ASCO D144 is a high-performance 2/2 normally closed solenoid valve, specifically engineered as a direct-acting, total isolation valve for precise fluid control. Designed to handle both liquid and gaseous media, it offers complete separation between the fluid and the operating mechanism. The valve is available with G1/4 or barbed port connections, providing flexibility for various system requirements. With an operating pressure differential of up to 10 bar and a robust IP65-rated enclosure, the D144 is well-suited for demanding industrial, analytical, and medical applications where reliability and cleanliness are critical.
  • 2/2 Normally Closed G1/4 or Barbed Port
  • Direct Acting, Total Isolation
  • Suitable To Shut Off Liquid & Gaseous Fluids
  • Operating Pressure Differential: Up to 10 Bar
  • IP65

Selected variant

Available in several variants

Selected variant

Technical data

General Data

Function 2/2, Normally Closed
Connection G1/4
Electrical connection DIN 46340 - 3 Pole Plug Connector
Operating Pressure Differential 0-4.5 bar
Flow factor / flow coefficient 0,32
Coil type Z530A
Voltage / Frequency 12VDC
IP class IP65

Material Data

Material body PEI
Material of seals EPDM
Encapsulation material Fiberglass reinforced PET

Temperature Data

Temperature ambient from -10 °C

*Invisible Heading*

Temperature ambient to 60 °C
Temperature of media from -10 °C
Temperature of media to 100 °C

Additional Data

Power consumption 9W
Pressure max 12 bar
Response time 25 ms
Close delay 25 ms
Viscosity max 37 cSt
Continuous duty ED 100%
Insulation class F (140°C)
Weight 0.255 kg

Product description

The Emerson ASCO D144 Series is a line of direct-acting, total isolation solenoid valves engineered for the precise control of aggressive or contamination-sensitive fluids. Featuring a 2/2 normally closed configuration, these valves offer port options including G1/4 and barbed connections, accommodating diverse installation needs. The design ensures that the actuator is completely isolated from the fluid, with only the body and lever-seal in contact, thereby preventing contamination and enhancing durability. Constructed with materials such as polyetherimide (PEI) for the body and various sealing options like EPDM, VMQ, or FPM, the D144 Series can handle operating pressure differentials up to 10 bar and fluid temperatures ranging from -10°C to +100°C. Additionally, these valves are rated IP65, signifying robust protection against dust and water ingress. ​

These attributes make the ASCO D144 Series particularly suitable for industrial applications requiring reliable shut-off of liquid and gaseous fluids. Industries such as food processing, biotechnology, chemical and pharmaceutical manufacturing, and medical device production can benefit from the valves' ability to manage aggressive media without risk of contamination. The combination of total isolation design, versatile port options, and high-quality materials ensures that these solenoid valves deliver consistent performance in demanding environments where maintaining fluid purity and system integrity is critical.

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Parts Connection Operating Pressure Differential Flow factor / flow coefficient Voltage / Frequency Material of seals Power consumption Price
G1/4
0-4.5 bar
0,32
12VDC
EPDM
9W
G1/4
0-2.4 bar
0,32
24VDC
EPDM
9W
G1/4
0-10 bar
0,32
24/50Hz
EPDM
Inrush: 23vA Holding: 14vA
G1/4
0-10 bar
0,32
110/50 Hz
EPDM
Inrush: 23vA Holding: 14vA
G1/4
0-10 bar
0,32
230V/50Hz
EPDM
Inrush: 23vA Holding: 14vA
G1/4
0-1 bar
0,55
24VDC
EPDM
9W
G1/4
0-4.5 bar
0,55
24/50Hz
EPDM
Inrush: 23vA Holding: 14vA
G1/4
0-4.5 bar
0,55
110/50 Hz
EPDM
Inrush: 23vA Holding: 14vA
G1/4
0-4.5 bar
0,55
230V/50Hz
EPDM
Inrush: 23vA Holding: 14vA
Barbed Ports
0-1 bar
0,55
12VDC
EPDM
9W
Barbed Ports
0-1 bar
0,55
24VDC
EPDM
9W
Barbed Ports
0-4.5 bar
0,55
24/50Hz
EPDM
Inrush: 23vA Holding: 14vA
Barbed Ports
0-4.5 bar
0,55
110/50 Hz
EPDM
Inrush: 23vA Holding: 14vA
Barbed Ports
0-4.5 bar
0,55
230V/50Hz
EPDM
Inrush: 23vA Holding: 14vA
G1/4
0-1.5 bar
0,32
12VDC
9W
G1/4
0-1.5 bar
0,32
24VDC
9W
G1/4
0-1.5 bar
0,32
24/50Hz
Inrush: 23vA Holding: 14vA
G1/4
0-1.5 bar
0,32
110/50 Hz
Inrush: 23vA Holding: 14vA
G1/4
0-1.5 bar
0,32
230V/50Hz
Inrush: 23vA Holding: 14vA
G1/4
0-1 bar
0,55
12VDC
EPDM
9W
G1/4
0-1 bar
0,55
24VDC
9W
G1/4
0-1.5 bar
0,55
24/50Hz
Inrush: 23vA Holding: 14vA
G1/4
0-1.5 bar
0,55
110/50 Hz
Inrush: 23vA Holding: 14vA
G1/4
0-1.5 bar
0,55
230V/50Hz
Inrush: 23vA Holding: 14vA
Barbed Ports
0-1 bar
0,55
12VDC
9W
Barbed Ports
0-1 bar
0,55
24VDC
9W
Barbed Ports
0-1 bar
0,55
24/50Hz
Inrush: 23vA Holding: 14vA
Barbed Ports
0-1.5 bar
0,55
110V/50 Hz
Inrush: 23vA Holding: 14vA
Barbed Ports
0-1.5 bar
0,55
230V/50Hz
Inrush: 23vA Holding: 14vA
Barbed Ports
0-1 bar
0,55
12VDC
FPM
9W
Barbed Ports
0-1 bar
0,55
24VDC
FPM
9W
Barbed Ports
0-4.5 bar
0,55
24/50Hz
FPM
Inrush: 23vA Holding: 14vA
Barbed Ports
0-4.5 bar
0,55
110V/50 Hz
FPM
Inrush: 23vA Holding: 14vA
Barbed Ports
0-4.5 bar
0,55
230V/50Hz
FPM
Inrush: 23vA Holding: 14vA
G1/4
0-2.4 bar
0,32
12VDC
FPM
9W
G1/4
0-2.4 bar
0,32
24VDC
FPM
9W
G1/4
0-10 bar
0,32
24/50Hz
FPM
Inrush: 23vA Holding: 14vA
G1/4
0-10 bar
0,32
110V/50 Hz
FPM
Inrush: 23vA Holding: 14vA
G1/4
0-10 bar
0,32
230V/50Hz
FPM
Inrush: 23vA Holding: 14vA
G1/4
0-1 bar
0,55
12VDC
9W
G1/4
0-1 bar
0,55
12VDC
FPM
9W
G1/4
0-1 bar
0,55
24VDC
FPM
9W
G1/4
0-4.5 bar
0,55
24/50Hz
FPM
Inrush: 23vA Holding: 14vA
G1/4
0-4.5 bar
0,55
110V/50 Hz
FPM
Inrush: 23vA Holding: 14vA
G1/4
0-4.5 bar
0,55
230V/50Hz
FPM
Inrush: 23vA Holding: 14vA

Selected variant

Select a variant in the list

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