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391-2882-050 Gear Pump Parts

Parameter | Detail
Part Type | O-ring / Pocket Seal
Function | Installed in a groove inside the pump housing to seal internal oil passages and prevent internal leakage.
Compatible Pumps | Designed for Parker/Commercial Intertech C102, P31, P50, P51 series hydraulic gear pumps.
Material | Typically made of elastomers such as NBR (Nitrile rubber, also known as Buna-N), offering good oil resistance and wear resistance.
Shape and Dimensions | Usually a square-cut O-ring of a specific size, precisely matching the sealing groove inside the pump body.
Features | Designed to withstand the internal pressure and temperature of hydraulic systems; a critical component in pump repair kits.
  • 391-2882-050 Gear Pump Parts

  • Green Hydraulic

  • Yes

  • ISO9001,CE

  • Standard

  • 1 set

Availability:
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Product Description

Part number 391-2882-050 is an O-ring or seal, commonly referred to as a cavity seal, used in various hydraulic gear pumps, including the C102 and P31 series.

Key Characteristics of 391-2883-115 Gear Pump Parts

  • Part Function: It serves as an internal O-ring seal, specifically referred to as a "pocket seal" within the pump's design. Its primary role is to create pressure barriers between different internal fluid passages or chambers in the pump housing. This is crucial for directing hydraulic fluid flow and maintaining operational efficiency and pressure.

  • Application Specificity: It is a standard replacement component for several popular Parker/Commercial pump series, including:

    • C102 series dump pumps

    • P31, P50, and P51 series gear pumps

  • Material Composition: Typically made from a durable elastomer material, most commonly NBR (Nitrile Butadiene Rubber) or Buna-N. This material is chosen for its excellent resistance to petroleum-based hydraulic oils, typical operating temperatures, and pressure levels found in industrial and mobile hydraulic systems.

  • Usage Context: It is an internal seal, generally found only when the pump is being disassembled for a full rebuild or repair.

  • Dimensions/Shape: It is generally a specific size of square-cut O-ring or rectangular seal designed to fit precisely into machined grooves ("pockets") within the center section of the pump housing.

Application

  • Hydraulic Pump Internal Seal: This O-ring is precisely installed in a machined groove ("seal pocket" or "oil passage sealing groove") between the center section and end cover of the gear pump. It is crucial for creating a pressure barrier between different internal oil passages, ensuring directional flow of hydraulic fluid and maintaining system efficiency.

  • Compatible Equipment: This is a standard replacement part for the following Parker/Commercial Intertech pump series:

    C102 Series Dump Pumps

    P31 Series Gear Pumps/Motors

    P50 and P51 Series Gear Pumps/Motors

  • Heavy Machinery: These pumps are widely used in construction vehicles and mobile equipment such as excavators, wheel loaders, dump trucks, cranes, and agricultural machinery. This seal is essential for the reliable operation of hydraulic systems in these applications.

  • Maintenance and Repair: It is a standard component in comprehensive hydraulic pump seal kits or rebuild kits used for on-site repair or complete overhaul of the pump.



Vane Pump Application



Packaging & Delivery

Gear pumps are typically packaged securely to prevent damage during transit. The packaging includes:

Protective Wrapping: To safeguard the pump from environmental damage.

Custom Crates: For larger, heavier pumps, ensuring safe handling.

Documentation: Includes installation, maintenance instructions, and warranty details.

Delivery time depends on the model, customizations, and location but typically ranges from 2 to 6 weeks from the order date.

Certifications & Quality Assurance

All Gear pumps are manufactured in compliance with international standards, ensuring high performance and reliability:

ISO 9001: Certified for quality management systems.

CE Certification: Ensures compliance with European safety, health, and environmental protection standards.

RoHS Compliance: Ensures the pump does not contain hazardous materials.

Factory Testing: Every pump is rigorously tested for performance, pressure, and leak integrity before shipping.


Green Hydraulic Patent Certificate

FAQ

Are you a manufacture for the Gear pump or a wholesale ?

We are a manufacture for Gear pumps.We are located in Changzhou City, Jiangsu Province, China.Welcome to visit us.


What's our advantages?

Factory established in 2005;

With a great deal of production experience;

80+ employees become the professional team;

Constant updated ERP system ensure efficiency of work;

Sophisticated equipment ehanced the accuracy of products;

Professional salesmen provide the greast service;

With a large number of famous customers all over the world;

Great after-sales service;

With the long term cooperation with famous logistics and express company in China,provide the better goods service.


What is your payment terms?

Small order/sample order,full payment in advance; Big orders send the first payment 30% before the production,and the balance before shippment.We'll show the photos of the products and packages before delivery.


Can you make my own brand on the products?

Of course we can. Just send me your logo  we can make it for you.


What is our main export market?

America(40.5%):USA, Canada, Argentina, Brazil

Europe(30.8%):Italy,Germany,England,Holland,Spain,Swiss,Finland,Russia,Poland.

Asia(23.5%):Korea,singapore,India,Turkey,Vietnam,Saudi Arabia,Syria, Israel,Lebanon.

Others(5.8%).


Unedited footage of the Green Hydraulic Factory

The Green hydraulic pump manufacturing facility is a specialized industrial plant that focuses on producing hydraulic pumps and related components. These factories are equipped with advanced machinery and technology to fabricate high-quality pumps designed for a wide range of applications, from heavy equipment and machinery to automotive and industrial systems.

Unedited footage of the Green Hydraulic Factory1

The production process typically involves precision engineering, where raw materials like metals and alloys are processed into pump components such as gears, pistons, cylinders, and seals. These parts are then assembled into fully functional hydraulic pumps, which are tested for performance and quality control to ensure reliability, efficiency, and durability under various working conditions.

Unedited footage of the Green Hydraulic Factory2

Green Hydraulic's manufacturing facilities for hydraulic pumps maintain stringent quality standards, often adhering to international certifications, to meet the expectations of customers in industries such as construction, agriculture, automotive, and manufacturing.

Unedited footage of the Green Hydraulic Factory3

All hydraulic pumps produced by Green Hydraulic have undergone compliance testing, ensuring their quality and reliability.

Unedited footage of the Green Hydraulic Factory4

To meet the diverse needs of different industries, the green hydraulic offer customization options, such as specialized seals, materials, and pump configurations. These facilities often work closely with engineering teams to develop tailored solutions for specific applications, from high-pressure systems to low-flow, high-efficiency pumps.

Unedited footage of the Green Hydraulic Factory5

Each pump undergoes a rigorous quality control process, where pressure tests and performance assessments are conducted to ensure that the pumps meet the required standards for flow rate, pressure capacity, and durability.


Green Hydraulic Advantages


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