Series 20 MLV Model MLV21

2-WAY NORMALLY OPEN

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.

Tabs

Specifications

VALVE SPECIFICATIONS

MAX. OPER.			VALVE NUMBER

PRESS. DIFF.	ORFICE SIZE	CV FACTOR	DIN COIL		LEADED COIL
DC			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

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:

12, 24/DC

Nominal Power:

DC — 10.0 Watts

Coil Construction:

Molded Class B with DIN 43650 Form A Connector or Leadwires. DIN style mating connector No. 20-198** available

Typical Response Time on Air:

Approximate 50 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).*

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*

Drawings

To view files Autodesk Viewer can be found here. https://viewer.autodesk.com/

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

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

Flow Chart Tab

Flow chart Series 20-30

Nomenclature Tab

Nomenclature Chart (non 58 series)

Nomenclature, all valve series except 58

* Consult representative or factory for options and specifications