Series 20 MLV Model MLV21

Series 20 Model 21 Magnetic Latching

2-Way Normally Open Valve

This type of valve is often used in remote areas where continuous power may not be available or with battery-powered portable equipment where power capacity is limited. It is also valuable in equipment where coil heating, due to continuous application of power, is undesirable. Air and other fluids compatible with standard Buna seals. Hot water, steam, gasoline, oils, some hydraulic fluids, and many other media require special seal materials.

• Valve is magnetic latching.
• Meets today's demand for economy of space.
• Uses power only during latching and un-latching.
• Great for medical and chemical analyzers.

  • SPECIFICATIONS
  • 2-D & 3-D CAD DRAWING
  • FLOW CHART
  • NOMENCLATURE

VALVE SPECIFICATIONS

MAX. OPER. VALVE NUMBER
PRESS. DIFF. ORFICE SIZE CV FACTOR DIN COIL LEADED COIL
DC N.O. N.O. 1/8 NPT PORTS 1/4 NPT PORTS 1/8 NPT PORTS 1/4 NPT PORTS
400 1/32 .024 21G7XELM 21G9ZELM 21G7XGLM 21G9ZGLM
235 3/64 .053 21H7XELM 21H9ZELM 21H7XGLM 21H9ZGLM
150 1/16 .095 21J7XELM 21J9ZELM 21J7XGLM 21J9ZGLM
100 3/32 .156 21K7XELM 21K9ZELM 21K7XGLM 21K9ZGLM

WHEN ORDERING VALVES OR REPAIR PACKS ADD VOLTAGE AND FREQUENCY TO COMPLETE
VALVE NUMBER. EXAMPLES: VALVE (21J7XELM-12/DC) REPAIR PACK (K21JXL-DC)

OPERATING CONDITIONS

Media: Air and other fluids compatible with standard Buna seals. Hot water, steam, gasoline, oils, some hydraulic fluids, and many other media require special seal materials. (Series 20 pressure ratings may change due to the viscosity of the liquid.)*
Valve Temperature Range: Standard Valves – 0°F (-18°C) to 104°F (40°C) ambient; 0°F (-18°C) to 150°F (65°C) media. Optional Valves – can tolerate much higher or much lower ambient and media temperatures.*
Maximum Operating Pressure Differentials: See table above.
Burst Pressure: 5000 PSI
Leakage: Bubble tight for standard valves.
Vacuum: To 5 Microns*

ELECTRICAL CHARACTERISTICS

Coil Voltage: 6 to 60V DC
Nominal Power: DC — 10.0 Watts
Coil Construction: Molded coil with DIN 43650 Form A Connector (Std.), Leadwires (Opt.) For your convenience we have the female DIN style mating connector No. 20-198** available for an additional fee.*
Typical Response Time on Air: Approximate 30 millisecond pulse to energize and de-energize.
Operating Speed: Up to 600 CPM

MECHANICAL CHARACTERISTICS

Body: Stainless Steel (Std.) or Brass (Opt.)
Internal Components: Stainless Steel
Elastomers: Nitrile (Buna) (Std.). Many other elastomers available.*
Orifice Diameter: See table above.
Porting: Standard 1/8" and 1/4" NPT (other ports available).*
Housing: Leadwires and DIN Style Connector.
Life Expectancy: Millions of cycles, depending on application, lubrication, etc.
Valve Weight: 1.2 lb average
Repair Packs: See table above.
Options: Alternate Port Locations, Metering and Alternate Elastomers*

* Consult representative or factory for options and specifications.

Series 20 Magnetic Latching Valves


MODEL 21 1/4-18 NPT
2WNO
MAGNETIC LATCHING COIL

MODEL 21 1/8-27 NPT
2WNO
MAGNETIC LATCHING COIL

MODEL 21 BODY OPTION "O"
2WNO
MAGNETIC LATCHING COIL

MODEL 21 MANUAL OVERRIDE
2WNO
MAGNETIC LATCHING COIL

MODEL 21 1/4-18 NPT
2WNO
MAGNETIC LATCHING COIL WITH LEADS

MODEL 21 1/8-27 NPT
2WNO
MAGNETIC LATCHING COIL WITH LEADS

MODEL 21 BODY OPTION "O"
2WNO
MAGNETIC LATCHING COIL WITH LEADS

MODEL 21 MANUAL OVERRIDE
2WNO
MAGNETIC LATCHING COIL WITH LEADS