MOOG 30 Series Servo Valves

A high response, high efficiency valve in a compact package

The 30 Series is a two-stage, flow control, double-nozzle, mechanical feedback

servo valve with a stainless steel body and integrated torque motor in an envi

ronmentally sealed compartment. The valve’s nozzle-flapper design is a reliable

and proven technology for applications that require high response, stability

and accuracy within a compact package.

The 30 Series Servo Valve is designed to perform reliably over a long service

life even in potentially extreme environments, where temperatures might drop

to -40 °F (-40 °C) or be as high as 400 °F (204.4 °C). The stainless steel body and

a self-contained envelope provide a rugged construction, that allows the valve

to be used in environments with potentially high acceleration, or where they

are exposed to high shock and vibration. This product is part of our micro-hy

draulic offering which delivers high power to weight ratio and high efficiency.

It achieves this all while delivering high dynamics and precise flow control for

better overall system control.

Compact, light-weight package with a high power to weight ratio.

Micro-hydraulics are ideal for applications requiring high power density.

ADVANTAGES

• High response improves control capability

• Compact light weight package for mobile applications

• Can be used in extreme temperature environments

• Stainless steel body suitable for use in aggressive operational settings

• Magnetically adjusted null flow independent of other system parameters

allows for adjustment in the field

APPLICATIONS

• Remotely operated vehicle

• Automated guided vehicle

• Manipulators

• Downhole tools

• Entertainment

• Mobile robotics including construction

HYDRAULIC DATA

Seal material: FKM

System filtration: High pressure filter (without bypass but with

dirt alarm) mounted in the main flow and if possible directly up

stream of the valve.

Class of cleanliness: The cleanliness of the hydraulic fluid greatly af

fects the performance (e.g. spool positioning, high resolution) and wear

(e.g. metering edges, pressure gain, leakage) of the servo valves.

Recommended cleanliness class

For functional safety ISO 4406 <17/14/11

For longer service life ISO 4406 <16/13/10

Filter rating recommended

For normal operation b10

≥ 75 (10 µm absolute)

For longer life b5

≥ 75 (5 µm absolute)

Compatible fluids: Petroleum base or selected phosphate ester

fluid, 10 to 97 centistokes at 38 °C (60 to 450 SSU at 100 °F)