Peter Paul Excellence
Magnetic Latching Valves

Magnetic Latching Valves

Through the use of a permanent magnet, the latching valves are bi-stable in either shifted state. This allows the valve to stay in either state indefinitely without drawing power. To shift the valve from one state to another, a short 50 millisecond DC voltage is applied to the coil. To shift the valve back, a reverse polarity pulse is applied to the coil. This feature makes this valve suitable for use in remote areas where continuous power may be limited. It is also valuable in equipment where coil heating, due to a continuous application of power, is undesirable such as in medical and chemical analyzers.

Peter Paul single orifice valves in which the orifice is closed in the energized position and no flow can exist between the inlet and outlet ports.

2-Way Normally Open Latching Valves

Series/Model Std. Port Size Pressure (PSI) Flow (CV) Size (h x w)”
MLV20/21 1/8″ or 1/4″ NPT 100 – 400 .024 – .156 2.84 – 1.62
Peter Paul single orifice valves in which the orifice is closed in the de-energized position and no flow can exist between the inlet and outlet ports.

2-Way Normally Closed Latching Valves

Series/Model Std. Port Size Pressure (PSI) Flow (CV) Size (h x w)”
MLV15/152 1/8″ NPT 0 – 500 .022 – .130 2.5 x 1.13
MLV20/22 1/8″ or 1/4″ NPT 0 – 500 .024 – .700 2.84 x 1.62
MLV80/827 (DL) 3/8″, 1/2″ or 3/4″ NPT 0 – 100 4.0 – 5.0 up to 3.79 x 2.83
MLV80/828 (IP) 3/8″ to 3″ NPT 3 – 200 4.0 – 98 up to 11.74 x 8.82
Peter Paul dual orifice valves in which the body orifice is closed and sleeve orifice open in the de-energized position. No flow can exist between the inlet and cylinder ports but flow does exist between cylinder and exhaust ports.

3-Way Normally Closed Latching Valves (exhaust to atmosphere)

Series/Model Std. Port Size Pressure (PSI) Flow (CV) Size (h x w)”
MLV15/153 1/8″ NPT 0 – 150 .022 – .130 2.5 x 1.13
MLV20/23 1/8″ or 1/4″ NPT 0 – 400 .024 – .700 2.24 x 1.56
Peter Paul dual orifice valves in which the body orifice is closed and sleeve orifice open in the de-energized position. No flow can exist between the inlet and cylinder ports but flow does exist between cylinder and exhaust ports.

3-Way Normally Open Latching Valves

Series/Model Std. Port Size Pressure (PSI) Flow (CV) Size (h x w)”
MLV20/24 1/8″ or 1/4″ NPT 0 – 400 .024 – .156 3.59 x 1.62
Peter Paul dual orifice valves in which the body orifice is closed and sleeve orifice open in the de-energized position. No flow can exist between the inlet and normally closed ports but flow does exist between the inlet and normally open ports.

3-Way Normally Directional Control Latching Valves

Series/Model Std. Port Size Pressure (PSI) Flow (CV) Size (h x w)”
MLV20/25 1/8″ or 1/4″ NPT 0 – 500 .024 – .214 3.59 x 1.62
Peter Paul dual orifice valves in which the body orifice is closed and sleeve orifice open in the de-energized position. No flow can exist between the common and normally closed ports but flow does exist between common and normally open ports.

3-Way Normally Multi-Purpose Latching Valves

Series/Model Std. Port Size Pressure (PSI) Flow (CV) Size (h x w)”
MLV20/26 1/8″ or 1/4″ NPT 0 – 400 .024 – .156 3.59 x 1.62