Rotary Gear Pump
JK Series Rotary Gear Pump — Manufacturer in Ahmedabad, India
JK Pump Industries manufactures the JK series rotary gear pump — a positive displacement pump built for reliable, pulsation-free transfer of viscous and semi-viscous liquids such as oils, fuels, chemicals, syrups, and bitumen. With a single helical gear design as standard (double helical available on request), the JK series is our workhorse line for industrial fluid handling where consistent flow and self-priming performance matter most, and precision-engineered for durability across multiple industries.
What is a Rotary Gear Pump?
A rotary gear pump is a type of positive displacement pump that uses rotating gears to move fluids. It works by trapping liquid between gear teeth and transferring it from the inlet to the outlet.
This design ensures:
- Constant flow rate
- High pressure capability
- Excellent handling of viscous fluids
- Self-priming operation
- Bidirectional flow (in specific models)
Rotary gear pumps are widely used in industrial processes where accurate flow control and consistent performance are critical.
How the Rotary Gear Pump Works
The working principle of a rotary gear pump is based on positive displacement.
- Liquid enters the suction port.
- The rotating gears create a vacuum, drawing fluid into the chamber.
- Fluid gets trapped between gear teeth and casing.
- As gears rotate, fluid moves along the casing wall.
- Fluid is discharged at the outlet under pressure.
Because fluid does not pass between gear teeth but is carried around them, the pump delivers a smooth, controlled flow without turbulence — ideal for high viscosity liquids such as oils, syrups, polymers, chemicals, and lubricants.
JK Series Technical Specification
| Model | Suction & Delivery Size | Capacity at 1440 RPM | ||
|---|---|---|---|---|
| LPM | US GPM | M³/hr | ||
| JK-050 | 1/2" x 1/2" | 20 | 5.30 | 1.20 |
| JK-075 | 3/4" x 3/4" | 30 | 7.92 | 1.80 |
| JK-100 | 1" x 1" | 50 | 13.20 | 3.00 |
| JK-125 | 1 ¼" x 1 ¼" | 75 | 19.80 | 4.50 |
| JK-150 | 1 ½" x 1 ½" | 110 | 29.00 | 6.60 |
| JK-200 | 2" x 2" | 225 | 59.40 | 13.50 |
| JK-250 | 2 ½" x 2 ½" | 350 | 92.50 | 21.00 |
| JK-300 | 3" x 3" | 500 | 131.60 | 30.00 |
General operating parameters:
| Parameter | Specification |
|---|---|
| Pressure Range | Up to 15 Bar |
| Viscosity Handling | Up to 1,00,000 cSt |
| Speed | 500 – 1440 RPM |
| Temperature Range | -10°C to 200°C |
| Seal Type | Mechanical Seal / Gland Packing |
| Motor | Flameproof / Standard IE2 / IE3 |
| Mounting | Base Mounted / Monoblock |
Custom flow rates and configurations available on request.
Material of Construction
| Part | Material For Standard | Material For H.T. |
|---|---|---|
| Body | IS.210 FG 220 C.I. Grade | IS.210 FG 220 C.I. Grade |
| Back Cover | IS.210 FG 220 C.I. Grade | IS.210 FG 220 C.I. Grade |
| Gland Cover | IS.210 FG 220 C.I. Grade | IS.210 FG 220 C.I. Grade |
| R.H. & L.H. Gear | EN-8 | EN-24 [H. Nitrated] |
| Rotor/Stator Shaft | EN-19 | EN-19 |
| Bearing [Bushes] | Non Ferrous Sintered Bronze | Non Ferrous Sintered Bronze |
| Sealing | Neoprene Oil Seal / Mechanical Seal | GFO Pack Teflon / Mechanical Seal |
| R.V. Cap | Aluminium | Aluminium |
| Key for Coupling | EN-8 | EN-8 |
Other Pumps We Manufacture
The JK series is our standard line. For specific requirements, we also manufacture:
Stainless Steel (SS 304 / SS 316) Gear Pump
Designed for food-grade, pharmaceutical, and chemical industries where corrosion resistance is required. View JKSS series →
Double Helical Gear Pump
Smoother, lower-noise operation for higher-pressure duty. View JKRN/JKRX series →
Flameproof Motor Gear Pump
Suitable for hazardous environments such as chemical plants and refineries — available as a motor option across our range on request.
Applications of the JK Rotary Gear Pump
Oil & Lubrication Industry
- Lubricating oil transfer
- Furnace oil pumping
- Diesel & fuel transfer
- Hydraulic oil circulation
Chemical Processing Industry
- Acid and solvent transfer
- Resin and polymer pumping
- Chemical dosing systems
Food & Beverage Industry
- Syrup transfer
- Edible oil pumping
- Molasses handling
- Glucose and viscous liquid movement
Pharmaceutical Industry
- Liquid base transfer
- Chemical ingredient dosing
Paint & Coating Industry
- High viscosity material pumping
- Resin and binder transfer
Refineries, Power, Steel & Cement Plants
- Continuous-duty process fluid metering
- Oil storage installation handling
Why Choose JK Pump Industries
Precision Manufacturing
Each pump is manufactured using high-grade materials and CNC-machined components for accurate tolerances.
High Efficiency & Performance
Consistent flow, minimal leakage, and reliable high-pressure performance.
Custom Engineering Support
- Flow requirements
- Viscosity levels
- Temperature conditions
- Chemical compatibility
Durable Construction
Heavy-duty shafts, hardened gears, and robust casings ensure long service life.
PAN India & Export Supply
We supply rotary gear pumps across India and international markets, with a dedicated engineering team for application guidance and after-sales support.
Rotary Gear Pump vs Centrifugal Pump
| Feature | Rotary Gear Pump | Centrifugal Pump |
|---|---|---|
| Flow Type | Positive Displacement | Dynamic |
| Pressure Capability | High | Moderate |
| Viscosity Handling | Excellent | Poor |
| Self-Priming | Yes | No |
| Flow Consistency | Constant | Variable |
Gear pumps are better suited for high viscosity and precision flow applications.
Advantages of the JK Rotary Gear Pump
- Self-priming capability
- Handles high viscosity fluids
- Smooth and pulse-free flow
- Compact design
- Low maintenance
- Long operational life
- Reversible flow option
- Integrated relief valve design
Quality & Manufacturing Standards
- High precision machining
- Leak testing before dispatch
- Dynamic balancing of rotating parts
- Material traceability
- Quality inspection reports
Our pumps are built to meet industrial standards for safety and durability.
Customization Options Available
- Flow rate requirement
- Pressure rating
- Liquid compatibility
- Explosion-proof motors
- Special seals for chemical resistance
- Heating jackets for viscous fluids
If you have a unique industrial requirement, our engineering team can design a solution specifically for your application.
Simple and Efficient design.
Single helical gear design.
Low noise.
Wide capacity range.
With relief valve design.
High efficiency.
Self priming pump.
Optionally available
in double helical gear design.
Bi-direction
positive displacement pump.
Frequently Asked Questions
Rotary gear pumps provide consistent flow, handle viscous fluids efficiently, and are ideal for continuous industrial operations with minimal maintenance.
Yes, we offer customized rotary gear pumps based on flow rate, pressure, material, and application requirements.
Absolutely. Our rotary gear pumps are widely used for diesel transfer, lubrication oil circulation, and LDO pumping systems.
We manufacture pumps using high-quality cast iron, stainless steel, and alloy materials depending on application needs.
Yes, JK Gear Pumps supplies rotary gear pumps PAN India and also supports export requirements.
