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SXH25 unloading valve for steering system

SXH25 unloading valve for steering system

    Brand: ZLH
    Transportation: Ocean,Air
    Place of Origin: China
    Certificate: ISO45001; ISO14001; ISO9001
    HS Code: 8481201000102
    Port: Ningbo,Qingdao

Basic Info

Model No.: SXH25

Product Description

SXH25 unloading valve


SXH25 unloading valve is used in combination with zlf25b flow amplification valve, so that the excess oil in the Steering System can be merged into the working system to meet the working conditions of low-pressure large flow and high-pressure small flow of construction machinery such as loaders. When the working system is at low pressure and large flow, the unloading valve will combine the oil from the steering pump to the working system to reduce the displacement of the working pump; When the working system is at high pressure and small flow, the low-pressure unloading of the oil from the steering pump is realized. It is mainly used in the steering system of construction machinery such as loaders and fork loaders.



Technical parameter


  • Rated flow: 160L / min
  • Rated pressure: 190bar
  • Viscosity range: 10-380 mm2 / S
  • Temperature range: - 20 ℃ ~ 100 ℃
  • Oil cleanliness: the solid particle pollution level of oil and system shall not be higher than GB / T 14039-2002 - / 19 / 16 or NAS 1638 grade 10.
  • Approximate weight: 6kg


Hydraulic system schematic


Sxh25 Unloading Valve Hss

Installation connection size

Sxh25 Unloading Valve Ics


Zhejiang Haihong Hydraulic Technology Co.,Ltd.

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 As the domestic leading hydraulic manufacture enterprise, Zhejiang Haihong Hydraulics Technology Co.,Ltd., was founded in 1970 with a long history. The company covers an area of 200 mu, building area of 100,000 ㎡,It is a high-tech enterprise supported by the state and a standing director of China Hydraulics Pneumatic & Seals Association. Products cover engineering machinery, industrial vehicles, agricultural machinery, mining machinery, military industry, environmental protection vehicle hydraulic valve, oil cylinder and Other parts, a total of more than 40 series, more than 600 varieties, is the present domestic the most complete line of hydraulic parts manufacturers. Major products supporting Sany group, XCNG, ZOOMLION, LiuGong, Anhui Heli, Hangzhou fork, Linde forklift, BYD, John Deere, LONGKING, XIAGONG, ZOOMLION nongji, Shantui, ICC, JACZG, Changzhou KeShi domestic each big engineering machinery such as host production enterprises, some products with the host exports or directly sold to overseas markets. Company always has been in technology innovation as a strategy,customer-orientated for the purpose, has the abundant scientific and technological strength and R&D capability. The company has a High-tech Enterprise R&D Center and EnterpriseTechnology Center of Zhejiang. Through increased the spending on R&D,company's R&DCenter has independently developed a series of core technologies with the leading domestic and international standards. Company owns 65 patents, 15 of which were patented.is certified as Zhejiang Patent Demonstration Enterprise. Company has participated in the formulation of various national and industry standards, is National (Industry) Standard Setting Unit. It obtained ISO9001 certification,"Linhong" engineering hydraulic valve brand has been awarded as "Famous Brand in Zhejiang Province". Company also participated in the R&D and manufacturing of the national science and technology support program. We are looking forward to your cooperation to open up a promising future together.

Company Info

  • Company Name: Zhejiang Haihong Hydraulic Technology Co.,Ltd.
  • Representative: Yunbing Qian
  • Product/Service: Multiple way valves , Pilot control devices , Brake valves , Maneuvering valves , Farm machinery series hydraulic parts , Steering control valves
  • Capital (Million US $): 103,860,000RMB
  • Year Established: 1970
  • Total Annual Sales Volume (Million US $): US$50 Million - US$100 Million
  • Export Percentage: 1% - 10%
  • Total Annual Purchase Volume (Million US $): US$50 Million - US$100 Million
  • No. of Production Lines: 2
  • No. of R&D Staff: 51 -60 People
  • No. of QC Staff: 31 -40 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): Above 100,000 square meters
  • Factory Location: No. 199, Jinling Road, Jiangnan Street, Linhai City, Zhejiang Province
  • Contact Person: Mr. Warren Chen
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