P9-80 series piston pump
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Hydraulic Pump P9-80 Series: Model Explanation & Technical Parameters
1. Model Explanation
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P9: Series Identifier, representing the high-pressure vane pump series. This series is designed for heavy-duty working conditions, adopting high-strength materials and optimized structural design to ensure stable operation under high-pressure loads, with excellent durability and anti-contamination performance[1][3].
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80: Displacement Specification, indicating the theoretical displacement of the pump is 80 cc/rev (cubic centimeters per revolution). This parameter determines the basic flow output capacity of the pump, and the actual flow rate varies with the operating speed[1][2].
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Supplementary Note: For the extended models of the P9-80 series (such as P9-80A/P9-80B), the suffix letters usually represent the mounting method: “A” stands for foot type mounting, and “B” stands for flange type mounting, which can be selected according to the actual layout of the hydraulic system. In addition, the pump is equipped with a built-in safety relief valve to protect the system from overpressure damage[10][14].
2. Technical Parameters
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Parameter Category
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Parameter Description
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Value
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Basic Parameters
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Pump Type
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High-Pressure Fixed Displacement Vane Pump
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Series
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P9-80
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Performance Parameters
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Theoretical Displacement
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80 cc/rev
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Rated Working Pressure
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210 bar (3045 psi) [Rated]; 280 bar (4061 psi) [Peak][1][3]
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Rotation Speed Range
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600 – 2000 min⁻¹ (Rated Speed: 1500 min⁻¹)
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No-Load Flow Rate (1500 min⁻¹)
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120 L/min (31.7 gpm)
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Installation & Physical Parameters
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Mounting Method
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Foot Type (Optional) / Flange Type (Optional)
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Weight
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18 kg (39.7 lb) [Foot Type]; 20 kg (44.1 lb) [Flange Type]
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Overall Dimensions (L×W×H)
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320×280×210 mm
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Operational Parameters
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Rotation Direction
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Clockwise (when viewed from the shaft side; reversible on request)
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Max Back Pressure of Drain Piping
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≤ 4.3 psi (≤ 0.03 MPa)
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Recommended Hydraulic Oil
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L-HM32 or L-HM46 anti-wear hydraulic oil; 11~60 mm²/s at 40℃[4][7]
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3. Key Features
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High-Pressure Stability: Optimized structural design and high-strength materials ensure stable operation under rated pressure of 210 bar (3045 psi) and peak pressure of 280 bar (4061 psi), adapting to heavy-duty working conditions[1][3].
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Efficient Operation: The vane structure is designed with self-adjusting function, which ensures the vane fits closely to the stator inner curve, reducing internal leakage and improving volumetric efficiency[14].
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Strong Anti-Contamination & Durability: Adopting high-quality materials and precise machining, it has excellent anti-contamination performance and wear resistance, extending the service life of the pump[1][3].
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Convenient Installation & Maintenance: Optional foot or flange mounting methods adapt to different hydraulic system layouts; the pump structure is simple, and the vane can be replaced quickly, reducing maintenance time[14].
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Reliable Safety Protection: Equipped with a built-in safety relief valve, which can automatically overflow when the system pressure exceeds the set value, effectively protecting the pump and hydraulic system from damage[10].
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Wide Adaptability: Suitable for a variety of hydraulic oil specifications, and can work stably in a wide speed range of 600-2000 min⁻¹, widely used in industrial manufacturing and engineering machinery[4][7].

Process steps:
Customer inquiry: Customers will make inquiries before placing an order to understand product details and communication needs.
Quotation: According to customer needs, provide a formal quotation, including the name, model, quantity, delivery time, payment method, etc. of the goods.
Order confirmation: After the customer confirms the quotation, a formal purchase order will be placed.
Confirm the delivery time: communicate the delivery time with the production department, inform the factory of the order details, and arrange the production plan.
Sign an export contract: After the two parties confirm that it is correct, sign an export contract to establish a trade relationship.
Implement the letter of credit (if applicable): If the payment method of the letter of credit is used, the customer needs to be urged to issue the certificate and review the contents of the letter of credit.
Export stocking: According to the requirements of the contract and the letter of credit, arrange production, purchase raw materials and packaging, and prepare the goods.
Chartering and booking: Contact the freight forwarder to make a booking and arrange the transportation of goods.
Export inspection: Apply to the quality inspection department for export commodity inspection and provide relevant documents.
Apply for a write-off slip: apply for a write-off slip from the foreign exchange management department for subsequent foreign exchange write-off.
Export declaration: Declare exports to the customs and provide documents such as power of attorney for customs declaration, customs declaration form for export goods, commercial invoice, packing list, etc.
