| GUORUI HYDRAULIC |
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GRH is a leading manufacturer specializing in hydraulic components and comprehensive solutions for various hydraulic systems.
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Over the past 30 years, GRH has continuously improved its technologies and maintained high enthusiasm, evolving into a powerful player in the fluid power industry since its establishment in 1986.
Research and development are at the core of our operations, driving innovation and product development. We adhere to international standards such as TS16949 and ISO14000, ensuring quality and environmental responsibility. Our employees' skills and creativity are key differentiators that 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 machines, and material handling systems. GRH also collaborates with customers to develop customized solutions tailored to their specific needs. With extensive experience in system design and application, we provide reliable support for your hydraulic system projects. |
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GRH has developed a series of load-sensing proportional stackable valves, significantly enhancing valve performance and overall 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 now has over 300 employees, including 51 technical staff. The company's fixed assets amount to RMB 42 million, and it operates across a 22,000 square meter facility. There are approximately 208 machines producing around 1.6 million hydraulic components annually.
GRH has four centers and four branch plants: Design Center, Sales Center, Administration Center, Testing Center; Gear Pump and Motor Plant, Hydraulic Valve Plant, Heat Treatment Plant, and System Plant.
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| GRH will work together with customers to create a better future |
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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