| GUORUI HYDRAULIC |
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GRH specializes in providing hydraulic components and solutions for hydraulic systems.
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With over 30 years of continuous improvement and passion since its establishment in 1986, GRH has become a significant player in the fluid power industry.
Research and development are at the core of our innovation. We adhere to TS16949 and ISO14000 standards, ensuring quality and environmental responsibility. Our employees' skills and creativity set us apart from competitors.
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GRH designs and produces Hydraulic Gear Pumps & Motors, Monoblock Valves, Sectional Stack Valves, Proportional Valves, and Flow Dividers. These products are widely used in industrial machinery, construction equipment, agricultural machinery, and material handling applications. We are also open to customizing products to meet specific customer needs. With extensive system design and application experience, we support customers in developing their hydraulic systems effectively. |
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GRH has developed a series of load-sensing proportional stackable valves that significantly enhance valve performance and system efficiency. |
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GRH (Shanghai) - International Sales Office
GRH (Jiangsu) - Manufacturing Facility and Domestic Sales Office
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Production Description
| Major Technical Data | |
| Rated flow rate: | 80 L/min |
| Maximum flow rate: | 100 L/min |
| Maximum pressure at P port: | 350 bar |
| Maximum pressure at A/B port: | 350 bar |
| Maximum pressure at T port: | 25 bar |
| Internal leakage (at 70 bar): A/B to T | 15-20 cc/min |
| Temperature range of the hydraulic oil | |
| with NBR (BUNA-N) seals: | -20ºC - 80ºC |
| with FPM (VITON) seals: | -20ºC - 100ºC |
| Spool stroke (1/2 position): | +7/-7 mm |
| With floating function (1/2 and F position): | +7/-7-10 mm |
| Recommended temperature range: | -40ºC - 60ºC |
Packaging & Shipping
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GRH currently employs over 300 people, including 51 technical staff. The company's fixed assets amount to RMB 42 million, with a total area of 22,000 square meters. It operates about 208 machines, producing approximately 1.6 million hydraulic components annually.
GRH has four centers and four branch plants: Design Center, Sales Center, Administration Center, Testing Center, as well as Gear Pump and Motor Plant, Hydraulic Valve Plant, Heat Treatment Plant, and System Plant.
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| GRH is committed to working closely with customers to build a better future together. |
Partnership
FAQ
| Q: What is our main application? |
| A: 1. Hydraulic system |
| 2. Agriculture machine |
| 3. Construction machine |
| 4. Automobile |
| 5. Local distributors |
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| Q: What Is The Payment Terms. |
| A: Full order: 30% as deposit, the balance before shipment; |
| Small order/sample order: full payment in advance; |
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| Q: Can I Mark My Own Brand On The Pump? |
| A: Yes. Full order should mark your brand and code; |
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| Q: What is our main export market? |
| A: America (45.5%): The United States, Canada, Argentina, Brazil |
| Europe (30.8%): Italy, Germany, England, Holland, Spain, Switzerland, Finland, Russia, Poland. |
| Asia (18.5%): Korea, Singapore, India, Turkey, Iran, Vietnam, Saudi Arabia, Syria, Israel, Lebanon |
| Others (5.8%): |
Details:
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| Material: cast iron covers and aluminum body / full aluminum / full cast iron |
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| Port: BSP, NPT, UNF etc |
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| Shaft: Tang claw shaft, Tapered key shaft, spline shaft |
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| Front cover: 4-bolt rectangular flange, 4-bolt square flange, 2-bolt SAE flange |
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| Application: construction machine, agriculture machine, hydraulic system |
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| Valve option: Pressure Relief Valve, Flow Control valve |
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| Shaft seal: V (-10ºC~120ºC), H (-40ºC~80ºC), T (3~6bar), N (3~10bar) |
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Welcome to China, Welcome to Shanghai, welcome for your visit! 
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GRH TEAM
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