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MH315 Metaris Gear Pump Builder

The Metaris MH315 is a premium, high-pressure bushing-style external gear pump designed for maximum performance in compact spaces. Engineered to be 100% interchangeable with the Parker/Commercial Intertec P315 series, it features a rugged three-piece cast iron construction that offers superior durability and resistance to mechanical fatigue compared to aluminum alternatives.
  • MH315

  • Green Hydraulic

  • MH315

  • Standard export carton/plywood case

  • Yes

  • ISO9001,CE

  • • Industrial • Energy • Government (Non Aerospace) • HVAC • Mobile • Natural Resources • Transportation (Non Aerospace)

  • 1. Industrial Hydraulic Systems 2. Mobile Equipment (Industrial Vehicles) 3. Construction and Engineering Machinery 4. Metallurgy Industry

  • Key Shaft and Spline shaft

  • 1 set

Availability:
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Product Description

MH315 SERIES Gear Pump  Overview

The Metaris MH315 is a premium, high-pressure bushing-style external gear pump engineered for compact hydraulic systems that demand peak performance and high volumetric efficiency. Designed as a 100% interchangeable alternative to the industry-standard Parker/Commercial P315 series, the MH315 combines a space-saving frame with the ruggedness of a heavy-duty cast iron construction. It is the ideal solution for high-intensity applications where space is limited but high-pressure durability is essential.

Features and Benefits

  • Rugged Three-Piece Cast Iron Construction:
    The MH315 is built with high-tensile, heavy-duty cast iron bodies and covers, offering significantly greater structural integrity than aluminum alternatives. This robust construction minimizes body deflection under extreme loads, ensuring long-term reliability in high-cycle mobile and industrial environments.
  • High-Performance Bushing Design:
    Unlike bearing-style pumps, the MH315 utilizes advanced, pressure-balanced bushings. This design is inherently more tolerant of fluid contamination and thermal shock, providing a larger bearing surface area that excels in high-pressure operations while extending the pump’s overall service life.
  • Advanced Pressure-Balanced Technology:
    Equipped with sophisticated pressure-balanced thrust plates, the MH315 automatically optimizes internal clearances during operation. This technology reduces internal leakage and friction, maintaining exceptional volumetric efficiency (exceeding 90%) even at continuous high-pressure duty cycles and varying temperatures.
  • Superior High-Pressure Performance:
    Despite its compact Group 1.5 frame size, the MH315 is engineered to handle continuous operating pressures of up to  3,500 psi (241 bar). The precision-ground, high-alloy steel gears ensure smooth power delivery and minimal pressure pulsations, even under maximum load.
  • Compact Modular Versatility:
    The MH315 series offers a versatile range of displacements (from  10.2 to 40.6 cc/rev) and supports multiple international mounting options, including SAE "A" and "B" flanges. Its modular design allows for easy configuration as a single unit or a multiple-stage "tandem" pump, offering unmatched flexibility for modern, space-constrained hydraulic circuits.

Model Codes

MH315(1)MH315(2)

Technical Data

Gear Width Displacement Max. Pressure Max. Speed Flow (1500 rpm)
inch (mm) in⊃3;/rev (cc/rev) psi (bar) RPM gpm (lpm)
0.50" (12.7) 0.62 (10.2) 3500 (241) 3000 4.0 (15.1)
0.75" (19.1) 0.93 (15.2) 3500 (241) 3000 6.0 (22.7)
1.00" (25.4) 1.24 (20.3) 3500 (241) 3000 8.1 (30.7)
1.25" (31.8) 1.55 (25.4) 3500 (241) 3000 10.1 (38.2)
1.50" (38.1) 1.86 (30.5) 3250 (224) 3000 12.1 (45.8)
1.75" (44.5) 2.17 (35.6) 3000 (207) 3000 14.1 (53.4)
2.00" (50.8) 2.48 (40.6) 2750 (190) 3000 16.1 (60.9)

MH315 Hydraulic Variable Vane Pump Installation Dimensions

MH315(3)

Applications

The Metaris MH315 series provides a compact, high-pressure power solution specifically engineered for space-constrained environments that demand peak hydraulic performance and superior contamination resistance:
  • Construction & Compact Earthmoving: A top choice for mini-excavators, skid steer loaders, and trenching equipment, where the bushing-style design handles high-pressure spikes and thermal shocks in tight engine compartments.

  • Specialized Waste Management: Optimized for side-load refuse trucks, organic waste compactors, and container lifters that require high-cycle, high-pressure operation (up to 3,500 psi) within a small installation footprint.

  • High-Intensity Material Handling: Widely used in narrow-aisle forklifts, reach trucks, and heavy-duty lift tables that demand precise control and consistent volumetric efficiency during rapid lifting and lowering cycles.

  • Road Maintenance & Utility Equipment: Ideal for asphalt pavers, road rollers, and truck-mounted salt spreaders, where the cast iron construction and pressure-balanced bushings ensure reliability under continuous high-load service.

  • High-Pressure Industrial Power Units: Frequently employed in hydraulic clamping systems, small plastic injection machines, and compact metal-forming presses where space is limited but high-pressure power and minimal pressure pulsations are critical.

Vane Pump Application



Packaging & Delivery

MH315 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.


MH315 Gear Pump  FAQ

1. What are MH315 series gear pumps

The MH315 is a premium, high-pressure bushing-style external gear pump designed for compact hydraulic systems that require high volumetric efficiency. Engineered as a 100% interchangeable alternative to the Parker/Commercial P315 series, it bridges the gap between small-frame pumps and high-pressure performance, utilizing a heavy-duty cast iron construction to handle intense work cycles in limited spaces.

2. What makes the MH315 different from standard aluminum gear pumps

The MH315 is built for high-pressure durability where aluminum pumps typically reach their limits:
  • Superior Pressure Rating: While standard aluminum pumps often peak at 3,000 psi, the MH315 is rated for continuous operation at 3,500 psi, thanks to its rigid cast iron housing that prevents body "stretching."

  • Bushing Design vs. Bearings: Unlike the roller bearings in the MH15, the MH315 uses high-performance bushings. This provides a larger surface area to support the gears, offering better resistance to thermal shock and a higher tolerance for fluid contamination.

  • Pressure-Balanced Efficiency: It features advanced pressure-balanced thrust plates that automatically adjust to operating conditions, ensuring maximum power output and minimal heat generation.

3. What is the working pressure range of MH315 pumps

The MH315 is a high-pressure specialist. Depending on the specific gear width, the series typically handles:
  • Continuous Pressure: Up to 3,500 PSI (241 bar).

  • Intermittent/Peak Pressure: Up to 3,750 PSI (258 bar).
    This capability makes the MH315 one of the most powerful pumps available in its size class, ideal for high-force actuators and compact machinery.

4. Can MH315 pumps replace other brands

Yes, the MH315 is designed for seamless integration and is a direct "drop-in" replacement for:
  • Parker/Commercial Intertec: P315 Series.

  • Permco: P1900 Series.

  • Muncie: PK Series.
    To ensure a successful swap, verify the Mounting Flange (SAE A or B), Shaft Type (splined or keyed), and Gear Width to match the required displacement.

5. What hydraulic oil is suitable for MH315 gear pumps

To maintain the precision fit of the bushings and gears, the following is recommended:
  • Oil Type: High-quality mineral-based hydraulic oils with robust Anti-Wear (AW) packages.

  • Viscosity: Standard ISO VG32 to VG68. The optimal operating viscosity range is 100 to 150 SUS (20 to 30 cSt).

  • Filtration: Because bushing-style pumps rely on a thin film of oil for lubrication, cleanliness is vital. A minimum filtration of ISO 4406 18/16/13 is recommended to prevent abrasive wear on the bushing faces and gear journals.

6. What is the typical speed range of MH315 pumps

The MH315 is designed for high-speed versatility, typically operating between  600 RPM and 3,000 RPM. Its ability to run at higher speeds than larger cast iron pumps allows it to deliver significant flow from a compact frame, making it ideal for engine-driven mobile applications.

7. Do you provide OEM or customized services

Yes, we support OEM and customization, including nameplate, packaging, and specific performance requirements. Send us your drawings or specifications for evaluation.

8. How can I get a quotation quickly

Please provide the following details:

  • Model or displacement

  • Working pressure

  • Speed

  • Quantity
    We will reply within 12 hours with a competitive quotation.


Certifications & Quality Assurance

MH315 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

1.How does the variable displacement work?

The pump's flow is adjusted by changing the angle of an internal swash plate. As the swash plate angle changes, the stroke length of the pistons varies, which in turn changes the volume of fluid displaced per rotation, allowing the flow rate to adapt to the system's needs.


2.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.


3.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.


4.Can you make my own brand on the products?

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


5.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%).


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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.

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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 Factory

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.

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

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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.


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