| GUORUI HYDRAULIC |
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GRH specializes in providing hydraulic components and solutions for hydraulic systems
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Over the past 30 years, GRH has continuously improved and shown great enthusiasm, evolving into a rising power in the fluid power industry since its establishment in 1986.
Research and development are at the core of GRH's innovation. We adhere to the principles of TS16949 and ISO14000 standards. Our employees' capabilities and creativity are key differentiators from our 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 used in industrial machinery, construction equipment, agricultural equipment, and material handling applications. GRH is also open to developing specialized products tailored to our customers’ unique needs. Our customers can rely on GRH’s extensive system design and application experience when designing their hydraulic systems. |
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GRH has developed a series of load-sensing proportional stackable valves that 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: | 45 L/min |
| Maximum flow rate: | 55 L/min |
| Maximum pressure at P port: | 310 bar |
| Maximum pressure at A/B port: | 310 bar |
| Maximum pressure at T port: | 25 bar |
| Internal leakage (at 70 bar): A/B to T | 30-35 cc/min |
| Temperature range of the hydraulic oil | Â |
| 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 - 9 mm |
| Recommended temperature range: | -40ºC - 60ºC |
Packaging & Shipping
Our Services
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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 facility covering 22,000 square meters. There are approximately 208 machines, producing about 1.6 million hydraulic components annually.
GRH has four centers and four branch plants: Design Center, Sales Center, Administration Center, and Testing Center; as well as Gear Pump and Motor Plant, Hydraulic Valve Plant, Heat Treatment Plant, and System Plant.
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| GRH will work together with the customers to create a better future |
Partnership
FAQ
| Application? |
| A: 1. Hydraulic system |
| Â Â Â 2. Agriculture machine |
| Â Â Â 3. Construction machine |
| Â Â Â 4. Automobile: |
| Â Â Â 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%): |
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Details:
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| Cast iron / 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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