Moog (G)78K Series Electrohydraulic Servovalve Operation and Installation Manual

About this manual

This manual provides instructions and procedures necessary to install, operate, and troubleshoot the Moog Inc. Series (G)78K series intrinsic safety protected industrial serovalve. The valves are electrical equipment for hazardous areas with intrinsic safety or non-incendive protection, intended for directional, position, velocity, pressure, and force control in hydraulic systems.

What's inside

• Introduction
• Operation
• Electrical Information
• Special Conditions for Safe Use
• Hydraulic System Preparation
• Installation
• Mechanical Null Adjustment

Frequently asked questions

What fluid type is this servovalve intended for?

The valves are intended for use in hydraulic control systems that operate with mineral oil based fluids.

What torque value is required for the mounting screws?

The mounting screws must be torqued to 120 inch-pounds.

What is the maximum flow null adjustment range?

The mechanical null adjustment allows at least +20% adjustment of flow null.