The G761 Series flow control servovalves are throttle valves for 3- and preferably 4-way applications. They are a high performance, two-stage design that covers the range of rated flows from 1 to 16.5 gpm at 1000 psi valve drop. The output stage is a closed center, four-way, sliding spool. The pilot stage is a symmetrical double-nozzle and flapper, driven by a double air gap, dry torque motor. Mechanical feedback of the spool position is provided by a cantilever spring. The valve design is simple and rugged for dependable, long life operation. These valves are suitable for electrohydraulic position, speed, pressure or force control systems with high dynamic response requirements.
The Moog G761 Series consists of high-performance, two-stage flow control servovalves designed for 3- and preferably 4-way applications. These valves are suitable for electrohydraulic position, speed, pressure, or force control systems with high dynamic response requirements. The design features a closed center, four-way sliding spool output stage driven by a symmetrical double-nozzle and flapper pilot stage.
| Rated Flow Range | 1 to 16.5 gpm at 1000 psi valve drop |
|---|---|
| Operating Pressure (Ports P, X, A, B) | up to 4,500 psi [315 bar] |
| Operating Pressure (Port T) | up to 3,000 psi [210 bar] |
| Temperature Range | -20 to 275˚F [-29 to 135˚C] |
| Recommended Cleanliness Class | ISO 4406 < 14/11 for normal operation |
An electrical command signal creates a magnetic force that deflects an armature/flapper assembly, restricting fluid flow through one nozzle to displace the spool. The spool position is proportional to the input current.
The standard operating fluid compatible seal material is Fluorocarbon (Viton), though other materials are available upon request.
The standard version uses a four-pin electrical box connector that mates with MS3106F14S-2S or equivalent.