INDUSTRIAL HYDRAULIC PRODUCTS
Find by type, brand, series and model
Industrial servo valves control flow, pressure or actuator movement with high precision. This page is organised by servo valve type, verified brands, published series and exact models, with a model and nameplate submission route. A shared series prefix does not establish interchangeability — confirm against the complete model code and the nameplate.
Browse Model DirectoryServo valve types
TYPE 01
5 published models · 3 series
A pilot stage drives the main spool. Published here: MOOG 730 (two-stage, mechanical feedback), MOOG D661 (two-stage, ServoJet® pilot stage) and MOOG D791 (three-stage).
Official source: MOOG official product pages and catalogue
TYPE 02
3 published models · 2 series
Single-stage valves in which a permanent-magnet linear force motor moves the spool directly, with no pilot oil required. Published here: MOOG D633 and MOOG D634.
Official source: MOOG official product page (Direct Driven Valves, DDV)
Types follow the manufacturers’ own product classification. Only models published in this category are counted. EMG SV1 is documented by EMG as a single-stage “Servo valve EMG SV” with an electromagnetic rotary drive; EMG uses neither the term pilot-operated nor direct drive, so it is not grouped under either type above and is shown as single-stage in the model directory below. Series without an official classification are not assigned to a type.
Published series
Series hub
4 published models
EMG SV1-10 is a single-stage servo valve family. Use the complete model suffix and nameplate to identify the required variant.
EMG SV1 Servo Valve SeriesSeries hub
1 published models
MOOG 730 is an electrohydraulic servo valve series. Match the complete model identification to the published model information.
MOOG 730 Servo Valve SeriesSeries hub
2 published models
MOOG D633 is a direct-drive servo valve series with integrated electronics. Identify the complete model and configuration for your requirement.
MOOG D633 Servo Valve SeriesSeries hub
1 published models
MOOG D634 is a direct-drive servo valve series with integrated electronics. Identify the complete model and configuration for your requirement.
MOOG D634 Servo Valve SeriesSeries hub
3 published models
MOOG D661 is a pilot-operated servo valve series with integrated electronics and an analog interface for industrial hydraulic flow control.
MOOG D661 Servo Valve SeriesSeries hub
1 published models
MOOG D791 is a pilot-operated electrohydraulic servo valve series. Review the complete model and configuration before requesting a quotation.
MOOG D791 Servo Valve SeriesSeries hub
1 published models
G761 / 761 is a Moog two-stage mechanical-feedback flow-control servo valve family.
MOOG G761 Servo valves SeriesModel submission
Send the complete model number or nameplate. We’ll check the available supply option. A different suffix is a different product — interchangeability is never assumed from a series prefix.
Incomplete data is fine to start with: an existing model number or one nameplate photo is enough, and we will work out the technical conditions with you.
Unconfirmed specifications and lead times are never preset; where a suffix or configuration is unclear we confirm with you first.
At minimum, give a brand or complete model, or upload a nameplate photo, plus your email. We will confirm the rest with you.
We verify the configuration from the model and nameplate you provide before confirming a supply option. Where something is unclear we confirm with you first.