Guangdong Yanhui Hydraulic Co., Ltd. is one of the leading manufacturers and suppliers of steimel gear pump distributors in China. We warmly welcome you to wholesale bulk steimel gear pump distributors for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.
Product Overview
▔▔Steimel gear pumps represent robust, high-performance positive displacement pumping solutions designed for demanding fluid transfer, lubrication, cooling, and dosing applications. Distributed by Yanhui Hydraulic, the Steimel gear pump series delivers reliable volumetric efficiency, consistent discharge pressure, and smooth flow characteristics across medium to high-viscosity media.
Key Advantages
▔▔- High Volumetric & Mechanical Efficiency: Precision-machined gears and optimized internal clearances ensure high operational efficiency and minimal internal slippage.
- Broad Viscosity Handling: Capable of handling fluids ranging from low-viscosity fuels to high-viscosity lubricants, polymers, and synthetic oils.
- Low Noise & Minimal Pulsation: Optimized gear tooth geometry minimizes operational noise and flow pulsation, extending system component lifespan.
- Bi-directional Operation: Many models support reverse rotation, allowing dual-direction pumping for versatile fluid control.
- Compact & Modular Design: Standardized mounting interfaces facilitate quick integration, retrofitting, and replacement across international machinery standards.
Technical Specifications
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| Parameter | Specification / Range |
| Maximum Operating Pressure | Up to 120 bar (Model dependent) |
| Rated Flow Rate | 0.5 L/min – 1200 L/min |
| Operating Temperature Range | -20°C to +200°C (Up to +300°C with high-temp seals) |
| Viscosity Range | 10 mm²/s – 50,000 mm²/s (cSt) |
| Maximum Speed | 500 RPM – 3,000 RPM |
| Suction Performance / NPSH | Self-priming capability up to 7–8 meters water column |
| Drive Efficiency | Up to 92% mechanical-hydraulic efficiency |
Configuration Options
▔▔- Pump Structure: External gear pump, internal gear pump, or multi-stage tandem configurations.
- Drive & Connection Methods: Direct motor shaft connection via flexible coupling, bell housing assembly, or magnetic drive (leak-free design).
- Port & Interface Types: SAE flange connections, BSPP parallel threads, NPT threads, or custom manifold block mounting.
- Mounting Styles: ISO / SAE standard flange mounting, foot-mounted construction, or vertical tank-top installation.
- Electrical & Motor Options: Standard IEC or NEMA frame electric motors, explosion-proof motors (ATEX certified), or hydraulic motor drives.
- Integrated Relief Valves: Optional built-in internal pressure relief valve (bypass valve) for overpressure protection.
Key Materials and Components
▔▔
- Pump Housing: High-grade ductile iron (GGG-40/50) or cast steel for structural strength and thermal stability under pressure; optional stainless steel (AISI 316 / 1.4408) for corrosive fluids.
- Gears & Shafts: Case-hardened, precision-ground alloy steel gears offering superior wear resistance and high torque transmission capability.
- Bearings: Heavy-duty bronze journal bearings or needle roller bearings with self-lubricating properties for smooth continuous rotation.
- Sealing Systems: High-performance Viton (FKM) or PTFE lip seals for standard and high-temperature duty; mechanical seals or magnetic couplings for zero-leakage requirements.
Packaging and Transport Protection
▔▔
- Industrial Protection: Every pump undergoes anti-corrosion oil flushing prior to dispatch to prevent interior surface oxidation.
- Moisture & Dust Barrier: Encased in heavy-duty polyethylene heat-sealed film with integrated desiccant bags to prevent moisture accumulation during maritime transport.
- Anti-Vibration Cushioning: Packed in customized high-density foam molds or wooden crates to absorb shock and mechanical impact during transit.
- Securing & Export Crate: Reinforced, ISPM-15 compliant heat-treated plywood boxes suitable for long-distance international air, sea, and land transportation.
- Bulk Shipment Packaging: Standardized palleted packing options available for large-quantity orders with corner protection and stretch-wrap stability.
Applications
▔▔- Wind Power & Heavy Gearboxes: Used for forced oil circulation, continuous lubrication, and filtration cooling loops in large planetary and helical gearboxes.
- Machine Tool Systems: Provides pressurized cooling lubricant supply and hydraulic feed functions for heavy-duty metal cutting, milling, and grinding machinery.
- Power Generation & Steam Turbines: Applied in main shaft bearing oil supply systems and jack oil systems for smooth startup and operation.
- Chemical & Process Engineering: Used for precise transfer, dosing, and metering of synthetic resins, additives, adhesives, and viscous raw materials.
- Marine & Shipbuilding Equipment: Serves as main motor lube pumps, fuel oil transfer pumps, and separator feed pumps operating under continuous marine environments.
Related Models
▔▔
| Series / Model Family | Typical Model Code | Key Features / Application Focus |
| SF Series | SF 2/20 RD | Standard lubrication and feed pumps, self-priming, compact footprint |
| SF Series | SF 4/80 L | Heavy-duty oil circulation and transfer pump with built-in bypass |
| TF Series | TF 5/100 R | High-viscosity transfer pump for bitumen, resins, and heavy fuels |
| B series | B 1/4 R | Low-flow metering and precise fluid delivery |
| T Series | T 3/40 L | High-pressure lubrication and cooling oil pump for gearboxes |
FAQ
▔▔Q1: How do I select or confirm the correct Steimel gear pump model number?
A1: Provide your current pump nameplate photo, flow rate requirement (L/min or GPM), maximum system pressure, operating temperature, and fluid viscosity. Our technical team will verify the model code and ensure exact dimensional and technical equivalence.
Q2: What is the recommended filtration precision for long gear pump service life?
A2: To prevent premature wear on gears and bearings, fluid filtration should be maintained at 25 microns or finer for standard hydraulic oil and lubricating oil systems.
Q3: Which types of fluids or hydraulic oils are compatible with standard Steimel pumps?
A3: Standard units are fully compatible with mineral oils, synthetic lubricants, hydraulic oils (HLP/HVLP), diesel, and fuel oils. For water-glycol, aggressive chemicals, or food-grade media, special material and seal configurations (stainless steel / PTFE / FKM) are required.
Contact Us
▔▔Get in touch with us and we will get in touch with you quickly to give you more personalized information.
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