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4124B Series Cast Iron Internal Gear Pumps

4124B Series Cast Iron Internal Gear Pumps

4124B Series Universal Product Line Cast Iron Internal Gear Pumps

The 4124B Series™ heavy duty internal gear pumps have Behind the Rotor dynamic shaft seals. By locating the mechanical seal immediately behind the rotor, this prevents the shaft and bracket bushing from coming into contact with the liquid.

Viking Pump 4124B Series Features & Benefits
• In asphalt handling systems, the positive displacement internal gear pump delivers steady, high-viscosity flow with minimal pulsation, maintaining consistent output even at elevated temperatures and under demanding operating conditions.
• If you're working with modified bitumen, emulsions, or need to highlight thermal jacket compatibility.
• Axial rotor thrust is controlled by double row ball bearing or tapered roller bearings; a bushing provides a secondary point of radial shaft support.
• Rotatable bearing housing provides easy rotor end clearance adjustment for viscosity or to compensate wear.
• Numerous material options are available for bushings, idler pins, shafts, rotors, idlers and elastomers.
• Gear and pump geometry has been optimized based on more than 100 years of experience.
• Footed cast iron bracket provides rigid mounting to help maintain alignment, which extends seal and bearing life.
• Can use direct drive, gear reducer or gearmotor drive, or belt-drive.
• Pressure relief valve standard on all except RS size pumps; less valve / plain head option available.

Specifications
Capacity: to 500 GPM, to 114 m³/h
Viscosity: 28 to 250,000 SSU, 1 to 55,000 cSt
Pressure: to 200 PSI, to 14 BAR
Temperature: -60 to +450 °F,-50 to +230 °C
Porting: Right Angle (90°) (Rotatable Casing), G-AK, K-Q, Opposite (180°), QS NPT Flanged (ASME / ANSI)
Drives: R Offset Gear Reducer Drive | P Purchased Gear Reducer Drive | D Direct-Mounted Drive, H-AK | V Drive | V-Belt Drive
Mounting: Foot Mount
Sealing: Behind the Rotor Seal

Typical Applications: Adhesives I Asphalt & Bitumens I Paints & Inks I Polymers I Resins I Chocolate I Refined Fuels I Edible Oils I Peanut Butter I Non-Corrosive Chemicals I Molasses

Manuals & Media

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Series: 4124B Series Cast Iron Internal Gear Pumps

Manufacturer: Viking Pump

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4-2520-26GA-513-3
Viking Pump
Viking Pumps 4-2520-26GA-513-3 4124B Series Universal Product Line Internal Gear Pump, KK4124B SD BZHI 297 HTRV 2"T z, Cast Iron, Standard Fitted, Non-Jacketed. 2" NPT 90° port arranged for Right Hand inlet. Cast Iron Casing, Head, Bracket & Idler, Ductile Iron Rotor, Hardened Steel Idler Pin, Bronze Bracket Bushing, Hardened Cast Iron Idler Bushing, High Strength Steel Rotor Shaft, Cast Iron High Temperature Relief Valve. Carbon / Silicon Carbide / FKM Behind the Rotor Mechanical Seal. 100 GPM Nominal Flow, 780 Max RPMs, 200 PSI Maximum Pressure, Up to 350° F (175° C).
$5,786.00
Quantity:add to cart
4-2520-26GA-023
Viking Pump
Viking Pumps 4-2520-26GA-023 4124B Series Universal Product Line Internal Gear Pump, KK4124B SD BZCG 297 PH 2"T z, Cast Iron, Standard Fitted, Non-Jacketed, Plain Head. 2" NPT 90° port arranged for Right Hand inlet. Cast Iron Casing, Head, Bracket & Idler, Ductile Iron Rotor, Hardened Steel Idler Pin, Bronze Bracket Bushing, Carbon Graphite Idler Bushing, High Strength Steel Rotor Shaft, No Relief Valve. Carbon / Silicon Carbide / FKM Behind the Rotor Mechanical Seal. 100 GPM Nominal Flow, 780 Max RPMs, 200 PSI Maximum Pressure, Up to 350° F (175° C).
$5,078.00
Quantity:add to cart
4-1412-26GA-529
Viking Pump
Viking Pumps 4-1412-26GA-529 4124B Series Universal Product Line Internal Gear Pump, HL4124B SD BZCG 097 HTRV 1.5T, Cast Iron, Standard Fitted, Non-Jacketed. 1.5" NPT 90° port arranged for Right Hand inlet. Cast Iron Casing, Head, Bracket & Rotor, Powdered Metal Idler, Hardened Steel Idler Pin, Bronze Bracket Bushing, Carbon Graphite Idler Bushing, Steel Rotor Shaft, Cast Iron High Temperature Relief Valve. Carbon / Silicon Carbide / FKM Behind the Rotor Mechanical Seal. 30 GPM Nominal Flow, 1750 Max RPMs, 200 PSI Maximum Pressure, Up to 350° F (175° C).
$4,453.00
Quantity:add to cart
4-2520-26HA-503
Viking Pump
Viking Pumps 4-2520-26HA-503 4124B Series Universal Product Line Internal Gear Pump, KK4124B SD CGCG 038 HTRV 3"F, Cast Iron, Standard Fitted, Non-Jacketed. 3" Flange 90° port arranged for Right Hand inlet. Cast Iron Casing, Head, Bracket & Idler, Ductile Iron Rotor, Hardened Steel Idler Pin, Carbon Graphite Bracket & idler Bushings, High Strength Steel Rotor Shaft, Cast Iron High Temperature Relief Valve. Carbon / Silicon Carbide / FKM Behind the Rotor Mechanical Seal. 100 GPM Nominal Flow, 780 Max RPMs, 200 PSI Maximum Pressure, Up to 350° F (175° C).
$5,776.00
Quantity:add to cart
4-1462-26GA-002-4
Viking Pump
Viking Pumps 4-1462-26GA-002-4 4124B Series Universal Product Line Internal Gear Pump, H4124B ST BZCG 098 PH 1.5T, Cast Iron, Steel Fitted, Non-Jacketed, Plain Head. 1.5" NPT 90° port arranged for Right Hand inlet. Cast Iron Casing, Head & Bracket, Powdered Metal Idler, Steel Rotor, Hardened Steel Idler Pin, Bronze Bracket Bushing, Carbon Graphite Idler Bushing, Steel Rotor Shaft, No Relief Valve. Carbon / Silicon Carbide / FKM Behind the Rotor Mechanical Seal. 15 GPM Nominal Flow, 1750 Max RPMs, 200 PSI Maximum Pressure, Up to 350° F (175° C).
$4,024.00
Quantity:add to cart
4-3320-26GA-025
Viking Pump
Viking Pumps 4-3320-26GA-025 4124B Series Universal Product Line Internal Gear Pump, L4124B SD CGCG 046 SKBK GRV z, Cast Iron, Standard Fitted, Non-Jacketed. 2" NPT 90° port arranged for Right Hand inlet. Cast Iron Casing, Head, Bracket, Idler & Rotor, Hardened Steel Idler Pin, Carbon Graphite Bracket & idler Bushings, High Strength Steel Rotor Shaft, Cast Iron Pressure Relief valve. Carbon / Silicon Carbide / FKM Behind the Rotor Mechanical Seal. 135 GPM Nominal Flow, 640 Max RPMs, 200 PSI Maximum Pressure, Up to 350° F (175° C).
$5,354.00
Quantity:add to cart
4-1462-26GA-539
Viking Pump
Viking Pumps 4-1462-26GA-539 4124B Series Universal Product Line Internal Gear Pump, H4124B SD BZCG 001 HTRV 1.5T z, Cast Iron, Standard Fitted, Non-Jacketed. 1.5" NPT 90° port arranged for Right Hand inlet. Cast Iron Casing, Head, Bracket & Rotor, Powdered Metal Idler, Hardened Steel Idler Pin, Bronze Bracket Bushing, Carbon Graphite Idler Bushing, Steel Rotor Shaft, Cast Iron High Temperature Relief Valve. Carbon / Silicon Carbide / FKM Behind the Rotor Mechanical Seal. 15 GPM Nominal Flow, 1750 Max RPMs, 200 PSI Maximum Pressure, Up to 350° F (175° C).
$2,839.00
Quantity:add to cart
4-3320-26HA-501-2
Viking Pump
Viking Pumps 4-3320-26HA-501-2 4124B Series Universal Product Line Internal Gear Pump, LQ4124B SD BZCG 041 HTRV 2.5F, Cast Iron, Standard Fitted, Non-Jacketed. 2.5" Flange 90° port arranged for Right Hand inlet. Cast Iron Casing, Head, Bracket, Idler & Rotor, Hardened Steel Idler Pin, Bronze Bracket Bushing, Carbon Graphite Idler Bushing, High Strength Steel Rotor Shaft, Cast Iron High Temperature Relief Valve. Carbon / Silicon Carbide / FKM Behind the Rotor Mechanical Seal. 135 GPM Nominal Flow, 640 Max RPMs, 200 PSI Maximum Pressure, Up to 350° F (175° C).
$5,943.00
Quantity:add to cart
4-1462-26GA-503
Viking Pump
Viking Pumps 4-1462-26GA-503 4124B Series Universal Product Line Internal Gear Pump, H4124B SD CGCG 003 HTRV 1.5T, Cast Iron, Standard Fitted, Non-Jacketed. 1.5" NPT 90° port arranged for Right Hand inlet. Cast Iron Casing, Head, Bracket & Rotor, Powdered Metal Idler, Hardened Steel Idler Pin, Carbon Graphite Bracket & idler Bushings, Steel Rotor Shaft, Cast Iron High Temperature Relief Valve. Carbon / Silicon Carbide / FKM Behind the Rotor Mechanical Seal. 15 GPM Nominal Flow, 1750 Max RPMs, 200 PSI Maximum Pressure, Up to 350° F (175° C).
$3,394.00
Quantity:add to cart
4-1412-26GA-503
Viking Pump
Viking Pumps 4-1412-26GA-503 4124B Series Universal Product Line Internal Gear Pump, HL4124B SD CGCG 003 HTRV 1.5T, Cast Iron, Standard Fitted, Non-Jacketed. 1.5" NPT 90° port arranged for Right Hand inlet. Cast Iron Casing, Head, Bracket & Rotor, Powdered Metal Idler, Hardened Steel Idler Pin, Carbon Graphite Bracket & idler Bushings, Steel Rotor Shaft, Cast Iron High Temperature Relief Valve. Carbon / Silicon Carbide / FKM Behind the Rotor Mechanical Seal. 30 GPM Nominal Flow, 1750 Max RPMs, 200 PSI Maximum Pressure, Up to 350° F (175° C).
$3,435.00
Quantity:add to cart
4-3325-26HA-003-2
Viking Pump
Viking Pumps 4-3325-26HA-003-2 4124B Series Universal Product Line Internal Gear Pump, LL4124B SD CGCG 046 PH 3"F z, Cast Iron, Standard Fitted, Non-Jacketed, Plain Head. 3" Flange 90° port arranged for Right Hand inlet. Cast Iron Casing, Head, Bracket, Idler & Rotor, Hardened Steel Idler Pin, Carbon Graphite Bracket & idler Bushings, High Strength Steel Rotor Shaft, No Relief Valve. Carbon / Silicon Carbide / FKM Behind the Rotor Mechanical Seal. 140 GPM Nominal Flow, 520 Max RPMs, 200 PSI Maximum Pressure, Up to 350° F (175° C).
$5,766.00
Quantity:add to cart
4-3320-26GA-508
Viking Pump
Viking Pumps 4-3320-26GA-508 4124B Series Universal Product Line Internal Gear Pump, L4124B SD BZHI 041 2"T 1.58SHF, Cast Iron, Standard Fitted, Non-Jacketed. 2" NPT 90° port arranged for Right Hand inlet. Cast Iron Casing, Head, Bracket, Idler & Rotor, Hardened Steel Idler Pin, Bronze Bracket Bushing, Hardened Cast Iron Idler Bushing, High Strength Steel Rotor Shaft, Cast Iron Pressure Relief valve. Carbon / Silicon Carbide / FKM Behind the Rotor Mechanical Seal. 135 GPM Nominal Flow, 640 Max RPMs, 200 PSI Maximum Pressure, Up to 350° F (175° C).
$5,640.00
Quantity:add to cart

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4124B Series Cast Iron Internal Gear Pumps

4124B Series Universal Product Line Cast Iron Internal Gear Pumps

The 4124B Series™ heavy duty internal gear pumps have Behind the Rotor dynamic shaft seals. By locating the mechanical seal immediately behind the rotor, this prevents the shaft and bracket bushing from coming into contact with the liquid.

Search Results

4-2520-26GA-513-3

Viking Pump

4-2520-26GA-023

Viking Pump

4-1412-26GA-529

Viking Pump

4-2520-26HA-503

Viking Pump

4-1462-26GA-002-4

Viking Pump

4-3320-26GA-025

Viking Pump

4-1462-26GA-539

Viking Pump

4-3320-26HA-501-2

Viking Pump

4-1462-26GA-503

Viking Pump

4-1412-26GA-503

Viking Pump

4-3325-26HA-003-2

Viking Pump

4-3320-26GA-508

Viking Pump

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