2-WAY NORMALLY OPEN Valve
Easily interfaced with circuit boards and miniaturized components. The versatility is for connecting electronic signals to pneumatic outputs. The small size is ideal for stand alone (with #10-32 ports) or multiple valves mounted on one manifold. Air and other common gases - filtration recommended - 30 microns or less.
- May be used to "pilot" larger valves.
- Ideal for micro electronic production equipment.
- Great for medical and chemical analytical applications.
- Can operate directly from most programmable controllers.
- High quality engineering.
| MAX. OPER. PRESS. DIFF. | ORIFICE SIZE | CV FACTOR | VALVE NUMBER |
|---|---|---|---|
| DC | LEAD WIRE | ||
| 150 | 0.6 mm | .010 | L581A19PGM |
| 130 | 0.8 mm | .020 | L581F19PGM |
Ordering Information:
When ordering valves or repair packs add voltage and frequency to complete valve number. for examples: valve (L581F19PG 12/DC) repair pack (KL581F19 DC)
When ordering operators add the letter “O” to the front of the valve number, replace body port number with the letter “D”: example: operator (OL581FDPG 12/DC)
Operating Conditions
- Media
- Air and other common gasses - filtration recommended - 30 microns or less.
- Valve Temperature Range
- Standard Valves – 5°F (-15°C) to 122°F (50°C) ambient and media. Note Do not allow water to freeze when using plastic body.
- Maximum Operating Pressure Differentials
- See table above.
- Burst Pressure
- 1500 PSI
- Leakage
- Bubble tight for standard valves.
- Vacuum
- To 5 Microns*
Electrical Characteristics
- Coil Voltage
- 12, 24/DC
- Nominal Power
- DC — 0.9 Watts
- Coil Construction
- Molded Class A with leadwires (Std.), Micro DIN (Opt.)
- Typical Response Time on Air
- DC - 9 Milliseconds
- Operating Speed
- Up to 600 CPM
- Duty Cycle
- Continuous
Mechanical Characteristics
- Internal Components
- Stainless Steel
- Elastomers
- Nitrile (Buna) (Std.). Many other elastomers available.*
- Orifice Diameter
- See table above.
- Porting
- #10-32 and Manifold Mount
- Life Expectancy
- Millions of cycles, depending on application, lubrication, etc.
- Valve Weight
- 0.13 lbs
- Repair Packs
- See table above.
- Options
- Round Stainless Steel, Male Stud Mount, and Manifold Mount*
Series L58 Model L581 Leads
2WNO MOLDED LEADS COIL
MANIFOLD MOUNT PLASTIC BODY
2WNO MOLDED LEADS STYLE COIL
MANIFOLD MOUNT PLASTIC BODY
WITH MANUAL OVERRIDE
2WNO MOLDED LEAD STYLE COIL
STAINLESS STEEL BODY WITH 10-32 PORTS
2WNO MOLDED LEADS COIL
PLASTIC BODY WITH 10-32 PORTS

PeterPaul has created this page for you so you can calculate the flow or Cv (flow coefficient) to make the relationship visible between the pressure drop (the difference in pressure between two points of a liquid/gas carrying network) and the flow rate.
The use of this flow coefficient (Cv) calculator offers a standard calculation to compare valve capacities and sizing for a wide range of applications. The type and sizing of a valve or regulator can have a large impact on the performance of the assembly for transferring gas or liquids in the system.
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