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The Rotodel Positive displacement HG Series delivers reliable performance with self-priming capability, bi-directional operation, and proven gear geometry. Available in a range of constructions—including general-purpose cast iron, compact OEM designs, rugged cast steel, hygienic SS 316 for corrosive applications, and ultra-compact monoblock configurations—the HG Series is engineered to meet diverse pumping needs with efficiency and durability.

HG Series

Model Construction / Key Build Size Range Capacity Max Pressure Viscosity Range Max Temp Mounting / Form Factor Rotation

HGN Two-piece cast iron; single-helical gears; sintered-bronze bush bearings 1/2″–3″ (BSP) 20–500 LPM Up to 10 bar (142 PSI) Up to 10,000 cSt Up to 250 °C Foot mounting Bi-directional; reversible relief valve

HGBX Compact cast iron for OEMs; single-helical gears; bronze bush; mono-block pump-set option 1/4″–2 1/2″ (BSP) 2.5–400 LPM Up to 11 kg/cm² (157 PSI) Up to 10,000 cSt Up to 250 °C Flange & Foot; mono-block option Bi-directional; reversible relief valve

HGSX All SS-316 (CF8M); three-piece easy-clean; Teflon-coated 'DU' dry-running bush bearings 1/8″–2 1/2″ (NPT) 5–350 LPM Up to 11 kg/cm² (157 PSI) Up to 100,000 cSt Up to 250 °C Foot mounting; bracket for motor alignment Bi-directional

HGMX All cast steel; three-piece easy-clean; bronze bush; rugged 1/8″–2 1/2″ (NPT) 5–350 LPM Up to 11 kg/cm² (157 PSI) Up to 100,000 cSt Up to 250 °C Flange & Foot* (per model) Bi-directional industrial duty

HGCX Mono-block, motor-mounted; rotor on motor shaft; built-in reversible relief valve; compact footprint 1/4″–1 1/4″ (BSP) 3–100 LPM Up to 7 kg/cm² (100 PSI) Up to 2,500 cSt Up to 220 °C Mono-block foot; horizontal BSP ports Bi-directional

Model Highlights

HGN — General-Purpose Rotary Gear Pump

Two-piece cast-iron construction with single-helical gears and sintered bronze bush bearings keeps operation smooth and maintenance simple; reversible RV supports quick changeover of inlet/outlet orientation. Envelope Offered range : 20–500 LPM, up to 10 bar, Viscosity upto 10,000 cSt and 250 °C.

Typical uses & fluids: coating, filling/filtering, paint handling, machine tools, lube-oil transfer, waste-oil systems; lube/gear/hydraulic oils, HSD/kerosene/LDO, glycerine, molasses/honey, furnace oil, vegetable/animal oils (compatibility dependent).

HGBX — Compact Rotary Gear Pump for OEMs

Compact CI built with single-helical gears and mono-block pump-set option for space-critical skids; bi-directional with reversible RV. Offered range: 2.5–400 LPM, up to 11 kg/cm², 10,000 cSt, 250 °C.

Typical uses & fluids: filling/filter systems, metal-forming, paints, lube-oil makers, waste-oil treatment/transport; clean/dirty lube oils, vegetable/fish oils, gear/hydraulic oils, HSD/kerosene/LDO, turpentine, RFO/furnace oil.

HGSX — All-Stainless-Steel (SS-316) Rotary Gear Pump

SS-316 (CF8M) wetted parts, three-piece easy-clean build, and Teflon-coated ‘DU’ dry-running bush bearings make HGSX ideal for corrosive and hygiene-sensitive duties. Offered range: 5–350 LPM, up to 11 kg/cm², 100,000 cSt, 250 °C.

Typical uses & fluids: food & dairy, soap/detergent, chemical & petrochem, pharma, printing/coating/filling/metering; creams, shampoos, glycerine, adhesives, edible oils, inks/lacquers, acids/chemicals (check compatibility & seals).

HGMX — All Cast-Steel Rotary Gear Pump

Designed for rugged service with cast-steel construction and three-piece easy-clean architecture; bi-directional and self-priming. Offered range : 5–350 LPM, up to 11 kg/cm², 100,000 cSt, 250 °C.

Typical uses & fluids: filling/filter systems, metal forming, paint, transmission building, machine tools, lube systems, tank-plant construction; clean/dirty lube oils, vegetable/fish/animal oils, gear & hydraulic oils, molasses/crude oil, HSD/kerosene/LDO, paint, RFO/furnace oil, wax/silicate

HGCX — Mono-Block, Motor-Mounted Rotary Gear Pump

Rotor mounted directly on the motor shaft for the smallest footprint and alignment-free operation; built-in, reversible RV with horizontal BSP ports. Offered range : 3–100 LPM, up to 7 kg/cm², 2,500 cSt, 220 °C.

Typical uses & fluids: IC-engine lubrication priming, pumping/filling, heating units, loading/unloading of oils; lube oil, gear oil, ISO VG/SAE oils.

 

Industries, Applications & Fluids

  • Industries: chemical & petrochemical, food & beverage/dairy, pharma, coatings/printing, automotive & machine tools, lubricant manufacturing, waste-oil handling.
  • Applications: transfer, circulation, filling, filtering, metering, priming, loading/unloading, heating units, lubrication systems.
  • Fluids (compatibility dependent): lube/gear/hydraulic oils; HSD/kerosene/LDO; vegetable/fish/animal oils & edible oils; glycerine/adhesives; inks/lacquers/paints; molasses/honey/crude; RFO/furnace oil; acids/chemicals (with SS-316).

FAQs

Yes. Each model in the HG Series supports self-priming and bi-directional operation; models with RVs allow reversible relief-valve function.