MOOG DIN Rail Modules - Analog Control Cards

Moog’s DIN rail mounted module analog control cards

are ideal for use in enclosures where space is limited.

Modules include servo amplifiers, transducer conditioning

electronics, command and auxiliary function modules,

valve drive amplifiers and power supplies. All of these

modules are CE marked and require a 24 VDC

supply. The

modules mount to standard 35 mm DIN rail mount for easy

installation and removal.

Portable Valve Testers - Evaluates Valves in the

Field

Valve testers are a cost effective method for evaluating

valves in the field. They provide a quick and easy means of

differentiating between hydraulic and electronic problems.

There are five models to choose from, each with different

levels of capability and flexibility to meet your specific

requirements. All valve testers have a compact, easily

portable design.

Mounting Manifolds - Easier Installation and

Maintenance

Various mountings manifolds are available for standard

industrial valves, including base and adapter types for

mounting and flushing requirements. Other hardware such

as bolts and connectors are also available.

The specific accessories you may need for a particular

model are listed in the relevant product catalogs and can

be ordered through your local office.

Filtration - Oil Filtration Requirements for

Industrial Servo Systems

The most effective way to reduce life cycle costs of

an oil hydraulic system is through close attention to

contamination control.

For industrial servo systems with 72 Series Servo Valves

the ideal system filter arrangement is summarized as

follows:

• Use a 10 micron (beta 10 ≥ 75) high pressure filter

without by-pass just before the valve or critical parts

of the valve (e.g. pilot).

• Use a 5 micron (beta 5 ≥ 75) low pressure filter in the

return or bypass line.

• Use a filter in the tank breather that is at least the

same filtration level as the finest filter in the system.

This recommendation is based on the fact that most servo

and proportional valves can accept the odd particle up to

25 microns so the pressure filter will protect the valve

from catastrophic failure. The real work is done by the

low pressure filter reducing small particle contamination

which is the prime contributor to component wear and

silting.

Assuming that the filters are properly dimensioned and

care is taken during initial installation and maintenance,

the aim should be to limit oil contamination to ISO 4406

17/14/11.

For long life, the maximum levels are 15/13/10.

respectively. It is important to note that these are

maximum contamination levels and with proper care

and regular filter change, significantly lower levels can

and should be achieved. Attention must also be paid to a

number of other factors that contribute to oil condition

problems such as elevated temperatures, high tank

humidity, “dirty” new oil.