JK Gear Pumps manufactures Double Helical Rotary Gear Pump solutions under the SHIVAY brand for demanding industrial liquid-transfer applications. The JKMS series is a heavy-duty, foot-mounted positive displacement rotary gear pump designed for reliable handling of a wide range of liquids, including viscous and high-temperature fluids.
The Double Helical Rotary Gear Pump features stainless-steel construction, refined SS 316 double helical gear shafts, and four-piece construction for easier cleaning and maintenance. The double helical gear design helps reduce axial and side thrust, supporting reliable pump performance and longer service life.
Double Helical Rotary Gear Pump Features
- Heavy-duty foot-mounted positive displacement pump
- Stainless-steel construction for JKMS series
- SS 316 double helical gear shaft
- Four-piece construction for easier maintenance
- GFO packing with provision for mechanical shaft seal
- Flanged suction and delivery connections
- Add-on type pressure relief valve
- Optional jacketing for steam or thermic fluid heating
- Suitable for viscous and high-temperature liquids
The stuffing box is fitted with GFO packing and provision is available for a mechanical shaft seal. Suction and delivery flange sizes are available from 1/2" to 6".
Depending on the selected model, these pumps can operate at pressures up to 10 kg/cm², with flow capacities from 13 LPM to 1335 LPM. The pumps are suitable for temperatures up to 200°C and viscosities up to 1,00,000 SSU.
Model JKM Rotary Gear Pump
JK Gear Pumps also provides the JKM Rotary Gear Pump model with features similar to the JKMS series, along with different material options for specific industrial applications.
- Casing : Available in C.I. and WCB casting.
- Shaft : Available in S.S. 316, EN-9, EN-36 and SAE 8620.
- Gear : Available in S.S. 316 and EN-24 Nitride.
Material of Constructions
| Part | Material For JKMS | Material For JKM |
| Pump Body | ICF8M [SS-316] | C.I/WCB Casting |
| Front Cover | CF8M [SS-316] | C.I/WCB Casting |
| Back Cover | CF8M [SS-316] | C.I/WCB Casting |
| Gland Cover | CF8M [SS-316] | C.I/WCB Casting |
| Rotor & Stator Shaft | AISI [SS-316]/EN-57 | EN-36/SS-316 |
| Gear | AISI [SS-316] | AISI [SS-316] |
| Bushes | Teflon Coated DU | Teflon Coated DU |
| Wear Plate | Non-Ferrous | Non-Ferrous |
| R.V. Housing | AISI [SS-316] | AISI [SS-316] |
| R.V. Piston | AISI [SS-316] | AISI [SS-316] |
| R.V. Spring | Spring Steel | Spring Steel |
| R.V. AD. Screw | EN-8 | EN-8 |
| Key | SS-304 | SS-304 |
| Sealing | "GFO" Packing/Mech. Seal | "GFO" Packing/Mech. Seal |
Technical Specification
| Model JKMS / JKM | Suction & Delivery Size | Capacity at 1440 RPM |
| | LPM | US GPM | M³/hr |
| 050-S | 1/2" x 1/2" | 13.00 | 3.30 | 0.75 |
| 050-M | 1/2" x 1/2" | 16.60 | 4.40 | 1.00 |
| 100-S | 1" x 1" | 30.00 | 7.92 | 1.80 |
| 100-M | 1" x 1" | 37.50 | 9.90 | 2.25 |
| 150-S | 1½" x 1½" | 60.00 | 15.80 | 3.60 |
| 150-M | 1½" x 1½" | 75.00 | 19.80 | 4.50 |
| 200-S | 2" x 2" | 100.00 | 26.40 | 6.00 |
| 200-M | 2" x 2" | 125.00 | 33.00 | 7.50 |
| 250-S | 2 ½" x 2 ½" | 150.00 | 40.00 | 9.00 |
| 250-M | 2 ½" x 2 ½" | 200.00 | 52.90 | 12.00 |
| 300-S | 3" x 3" | 250.00 | 66.00 | 15.00 |
| 300-M | 3" x 3" | 333.00 | 88.00 | 20.00 |
| 400-S | 4" x 4" | 415.00 | 111.00 | 25.00 |
| 400-M | 4" x 4" | 500.00 | 132.90 | 30.00 |
| 500-S | 5" x 5" | 600.00 | 158.00 | 36.00 |
| 500-M | 5" x 5" | 750.00 | 197.50 | 45.00 |
| 600-S | 6" x 6" | 1000.00 | 263.00 | 60.00 |
| 600-M | 6" x 6" | 1335.00 | 351.00 | 80.00 |
Applications of Double Helical Rotary Gear Pump
The Double Helical Rotary Gear Pump is suitable for various industrial liquid-transfer and pressurizing applications, including:
- Foam pressurizing applications for fire fighting
- High-pressure coolant transfer for machine tools
- Handling thinner liquids at moderate pressure
- Light fuel pressurizing for loaders and burners
- Molasses and magma transfer
- Tar and bitumen transfer
- Soap stock
- Paints and varnishes
- Sugar juice
- Vegetable oil
- Printing ink
- Paper pulp
- Spent wash
Double Helical Rotary Gear Pump Manufacturer
JK Gear Pumps manufactures Double Helical Rotary Gear Pump solutions for industrial applications requiring reliable positive displacement liquid transfer. The SHIVAY JKMS and JKM series can be selected according to liquid viscosity, flow requirement, pressure, temperature, material compatibility, and installation requirements.
Contact JK Gear Pumps to discuss your application and select a suitable Double Helical Rotary Gear Pump.