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Electrohydraulic Servo Valve - China

price: contact company for price

One-Stage Electrohydraulic Flow Controlling Servo Valve with Two Nozzles

and Flapper Force Feedback Design


(1) Dry torque motorized electrohydraulic servo valve with double nozzles and flapper type single stage of amplification.

(2) Excellent performance, high dynamic response, steady operation, reliable and long service life.

(3) Using super hard aluminum alloy shell and compact structure.

QDY-I Performance Specifications

Model: QDY5

Supply oil pressure range(MPa) 1.5-21

Rated supply oil pressure(MPa) 21

Rated flow Qn(L/min) (at valve pressure drop of 7MPa) 1.2

Rated current In(mA) 30, 40



Non linearity(%)≤±10


Pressure gain >30


Zero drift of supply oil pressure(80-110% Ps)(%)≤±2

Zero drift of return oil pressure(0-20% Ps)(%)≤±2

Zero drift in temperature (-30-+150C)(%)≤±3

Frequency characteristics:

Amplitude frequency width(-3dB)(Hz) >500

Phase frequency width(-90° (Hz)>500

Net weight(kg) 0.3

Company Contact:

  • Phone: 15801624867

  • Address: No. 4 Wangjing Road, Chaoyang District, Beijing, China

  • Email: Email

Published date: August 20, 2013 -

  • Business Description: BMTI Precision Mechatronics Co., Ltd. started research of pneumatic and

    hydraulic automatic control technology as early as in 1950s, and her

    research results and application level are leading in China. In more

    than 50 years, she always adheres to the road combining scientific

    research with production, and the hydraulic and pneumatic products

    researched & developed independently by her have been widely used in

    metallurgy, aerospace, shipbuilding, automobile, textile, and printing

    industry. Her modern manufacturing equipment and inspection conditions

    as well as perfect quality management system have ensured the steady and

    reliable quality of her products. She owns a professional and complete

    R&D team with rich practical experiences, and can undertake research of

    subjects specified by the state as well as development of new products,

    also complete turnkey projects for hydraulic and pneumatic subjects, and

    customize personalized solutions for the users focused at pneumatic and

    hydraulic technology.

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