We are the first private enterprise that is engaged in the design and manufacture of electro-hydraulic servovalve in China. At present, its products includes HTPL801, HTPL802, HTPL803 and HTPL808 Double Flapper-Nozzle, Two Stage Electro-Hydraulic Flow Control Servovalves as well as HTS818 Three Stage Electro-Hydraulic Flow Control Servovalve.
The valves above mentioned are applicable for controlling position, velocity, acceleration and force of electro-hydraulic servo control system, which is widely applied to various fields such as metallurgy, light industry and engineering mechanism, machine building, large scale test facility, aerospace, shipping, radar, rtillery and etc. Those valves can replace MOOG series servovalve.
HTS818 electro hydraulic servo valve
SERVOVALVE SPECIFICATION
ITEMS SPEC. LIMITS REMARKS
Rated Flow 380L/min+10% @7MPa Pressure drop/Land
Rated Pressure 30.9 MPa
Proof Pressure 52.5 MPa Test Pressure 31.5MPa
Back Pressure 21 MPa
Rated Signal ± 10 V
Spool Stroke ± 1.5 mm
Lap Condition 1% Over Lap 0.5% Over Lap/Land
Null Bias(Test Press. 30.9MPa) ≤ ± 1.0% Percent of Rated Input
Hysteresis (Test Press. 30.9MPa) ≤ 0.5%
Threshold (Test Press. 30.9MPa) ≤ 0.25%
Pressure Center Shift ≤ 1.25% @3.5MPa change in pilot supply pressure
3rd Stage Leakage ≤ 8.7 L/min @Supply Pressure 21MPa
Polarity @lnput D(-), E(+) Flow out port C1
Frequency
Response 90° PL ≥ 100 Hz @Supply Pressure 21MPa
± 25% Input
Gain ≤ +2 dB
Pilot Line
For Pilot valve Supply External
Return External
Pin F Out of
Spool POS. Signal Output ± 10 V
Polarity (+) @Flow out C1
Pin"G"Out for Signal of Pilot Valve ± 10 V
Input Impedance
Pin D Input 10KΩ
Pin E Input 20KΩ
Pin F 100Ω
Wuxi Huatong Hydraulic Pneumatic Manufacturing Co., Ltd. is one of the leading and high-tech enterprises in hydraulic pneumatic industry. Our company has 20 years' history in this field, and attached great importance to credit and quality.
After 20 years development, our company has a strong technical force. In 2007, our company brought in advanced equipment such as Swiss grinding machines, America machining centers, and Japan electro discharge machining plants. The performance and quality of our products are reliable and up to the international standard. Our company mainly produces various hydraulic units, cylinders and pneumatic elements, electronic hydraulic servo valves as well as numeric control mould type forming machines for colored cement tiles and steel fiber machines. Among the products, the electronic hydraulic servo valve is the leading hi-tech product around the world. We can also design and produce special non-standard products according to users' requirements as well as provide consultation on designing and technology.
Our company is located in Wuxi, which is near to the beautiful Taihu Lake, with Hu-Ning Highway and Jing-Hu Railway nearby. With convenient transportation and communication and elegant environment, we warmly welcome you to our company for business negotiation and will provide you with high quality products and excellent after-sales service.
