The 4123C Series™ internal gear steel pump is the flexible, simple, and adaptable solution for a wide range of applications. This new generation of universal pumps comes standard with the U-Plus™ bracket which accepts various sealing options, as well as the ProPort™ casing that accommodates a variety of port sizes and types depending on your needs. It can handle flow rates up to 500 GPM (114 m³/h).
Features & Benefits
- All steel construction for refinery and petrochemical applications
- Recommended for extremely high temperatures
- U-Plus Bracket, available on H-QS sizes, accepts a wide range of sealing options
- Opposite porting available on all pump sizes
Capacity
a 500 GPM
a 114 m³/h
Viscosity
28 a 2,000,000 SSU
0.1 a 440,000 cSt
Pressure
a 200 PSI
a 14 BAR
Temperature
-20 a +800°F
-30 a +430°C
Options
Porting
Drives
Mounting
Sealing
Specifications
Modelo | Tamaño de puerto estándar | Capacidad nominal de la bomba (GPM) | Capacidad nominal de la bomba (m³/h) | RPM máximas | Presión máxima PSI | Presión máxima BAR |
---|---|---|---|---|---|---|
H4123C | 1.5 | 15 | 3.4 | 1750 | 200 | 14 |
HL4123C | 1.5 | 30 | 3.8 | 1750 | 200 | 14 |
K4123C | 2 | 75 | 17 | 780 | 200 | 14 |
KK4123C | 2 | 100 | 23 | 780 | 200 | 14 |
L4123C | 2.5 | 135 | 31 | 640 | 200 | 14 |
LL4123C | 3 | 140 | 32 | 520 | 200 | 14 |
LS4123C | 3 | 200 | 45 | 640 | 200 | 14 |
Q4123C | 4 | 300 | 68 | 520 | 200 | 14 |
QS4123C | 6 | 500 | 114 | 520 | 200 | 14 |
Photos
Videos

Crude Oils
This is a very generic term for unrefined oils typically being recovered from the ground. Some crude oil may contain particulates from the oil well or recovery method. They are considered to be flammable liquids. Crude oils are later refined and used for everything from making plastics to gasoline.

Refined Fuels
Refined fuels would include petroleum based fuel oils and some Jet Fuels. Their viscosity and temperature handled can vary greatly. Normally these are handled in bulk transfer operations.

Lube Oil Blending
Local blending plants take bulk petroleum or synthetic base oils and mix them together with additives to create unique oil blends for specific applications and customers.

Asphalt Cement
Clean asphalt contains no fillers and is an oil based liquid. It is primarily used in paving roads, waterproofing liquids, and paints. Typically they are handled at elevated temperatures to reduce the viscosity of the asphalt. The pump needs a source of heat like jacketing or electric heat to prevent the product from solidifying in the pump.

Heat Transfer Liquids (Hot Oil)
Heat transfer liquids, heat transfer oil (HTO) or hot oil, are generally made from one of the following: mineral oil, diphenyls, modified terphenyls or polyalkalene glycols. Heat transfer liquids are used for transferring heat from a source to a point of use such as dies, presses, cooking vessels, processing equipment, etc. Most are handled at temperatures up to 600°F.
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DRAWINGS
H4123C with Plain Head - 1.5" Class 150 ANSI RH/LH PDF
STEP
HL4123C with Plain Head - 1.5" Class 150 ANSI RH/LH PDF
STEP
H4123C with Relief Valve - 1.5" Class 150 ANSI RH/LH PDF
STEP
HL4123C with Relief Valve - 1.5" Class 150 ANSI RH/LH PDF
STEP
H4123C with Plain Head - 1.5" Class 300 ANSI RH/LH PDF
STEP
HL4123C with Plain Head - 1.5" Class 300 ANSI RH/LH PDF
STEP
H4123C with Relief Valve - 1.5" Class 300 ANSI RH/LH PDF
STEP
HL4123C with Relief Valve - 1.5" Class 300 ANSI RH/LH PDF
STEP
H4123C with Plain Head - 2" Class 150 ANSI RH/LH PDF
STEP
HL4123C with Plain Head - 2" Class 150 ANSI RH/LH PDF
STEP
H4123C with Relief Valve - 2" Class 150 ANSI RH/LH PDF
STEP
HL4123C with Relief Valve - 2" Class 150 ANSI RH/LH PDF
STEP
H4123C with Plain Head - 2" Class 300 ANSI RH/LH PDF
STEP
HL4123C with Plain Head - 2" Class 300 ANSI RH/LH PDF
STEP
H4123C with Relief Valve - 2" Class 300 ANSI RH/LH PDF
STEP
HL4123C with Relief Valve - 2" Class 300 ANSI RH/LH PDF
STEP
H4123C with Plain Head - 1.5" NPT Opposite PDF
STEP
HL4123C with Plain Head - 1.5" NPT Opposite PDF
STEP
H4123C with Relief Valve - 1.5" NPT Opposite PDF
STEP
HL4123C with Relief Valve - 1.5" NPT Opposite PDF
STEP
H4123C with Plain Head - 1.5" Class 150 ANSI Opposite PDF
STEP
HL4123C with Plain Head - 1.5" Class 150 ANSI Opposite PDF
STEP
H4123C with Relief Valve - 1.5" Class 150 ANSI Opposite PDF
STEP
HL4123C with Relief Valve - 1.5" Class 150 ANSI Opposite PDF
STEP
H4123C with Plain Head - 1.5" Class 300 ANSI Opposite PDF
STEP
HL4123C with Plain Head - 1.5" Class 300 ANSI Opposite PDF
STEP
H4123C with Relief Valve - 1.5" Class 300 ANSI Opposite PDF
STEP
HL4123C with Relief Valve - 1.5" Class 300 ANSI Opposite PDF
STEP
H4123C with Plain Head - 2" Class 150 ANSI Opposite PDF
STEP
HL4123C with Plain Head - 2" Class 150 ANSI Opposite PDF
STEP
H4123C with Relief Valve - 2" Class 150 ANSI Opposite PDF
STEP
HL4123C with Relief Valve - 2" Class 150 ANSI Opposite PDF
STEP
H4123C with Plain Head - 2" Class 300 ANSI Opposite PDF
STEP
HL4123C with Plain Head - 2" Class 300 ANSI Opposite PDF
STEP
H4123C with Relief Valve - 2" Class 300 ANSI Opposite PDF
STEP
HL4123C with Relief Valve - 2" Class 300 ANSI Opposite PDF
STEP
H4123C with Plain Head - DIN 32 PN16 (RF) Opposite PDF
STEP
HL4123C with Plain Head - DIN 32 PN16 (RF) Opposite PDF
STEP
H4123C with Relief Valve - DIN 32 PN16 (RF) Opposite PDF
STEP
HL4123C with Relief Valve - DIN 32 PN16 (RF) Opposite PDF
STEP
H4123C with Plain Head - DIN 40 PN16 Opposite PDF
STEP
HL4123C with Plain Head - DIN 40 PN16 Opposite PDF
STEP
H4123C with Relief Valve - DIN 40 PN16 Opposite PDF
STEP
HL4123C with Relief Valve - DIN 40 PN16 Opposite PDF
STEP
H4123C with Plain Head - DIN 50 PN16 Opposite PDF
STEP
HL4123C with Plain Head - DIN 50 PN16 Opposite PDF
STEP
H4123C with Relief Valve - DIN 50 PN16 Opposite PDF
STEP
HL4123C with Relief Valve - DIN 50 PN16 Opposite PDF
STEP
H4123C with Plain Head - DIN 32 PN16 RH/LH PDF
STEP
HL4123C with Plain Head - DIN 32 PN16 RH/LH PDF
STEP
H4123C with Relief Valve - DIN 32 PN16 RH/LH PDF
STEP
HL4123C with Relief Valve - DIN 32 PN16 RH/LH PDF
STEP
H4123C with Plain Head - DIN 40 PN16 RH/LH PDF
STEP
HL4123C with Plain Head - DIN 40 PN16 RH/LH PDF
STEP
H4123C with Relief Valve - DIN 40 PN16 RH/LH PDF
STEP
HL4123C with Relief Valve - DIN 40 PN16 RH/LH PDF
STEP
H4123C with Plain Head - DIN 50 PN16 RH/LH PDF
STEP
HL4123C with Plain Head - DIN 50 PN16 RH/LH PDF
STEP
H4123C with Relief Valve - DIN 50 PN16 RH/LH PDF
STEP
HL4123C with Relief Valve - DIN 50 PN16 RH/LH PDF
STEP
K4123C with Plain Head - 2" Class 150 ANSI RH/LH PDF
STEP
KK4123C with Plain Head - 2" Class 150 ANSI RH/LH PDF
STEP
K4123C with Relief Valve - 2" Class 150 ANSI RH/LH PDF
STEP
KK4123C with Relief Valve - 2" Class 150 ANSI RH/LH PDF
STEP
K4123C with Plain Head - 2" NPT RH/LH PDF
STEP
KK4123C with Plain Head - 2" NPT RH/LH PDF
STEP
K4123C with Relief Valve - 2" NPT RH/LH PDF
STEP
KK4123C with Relief Valve - 2" NPT RH/LH PDF
STEP
K4123C with Plain Head - 4" Class 150 ANSI RH/LH PDF
STEP
KK4123C with Plain Head - 4" Class 150 ANSI RH/LH PDF
STEP
K4123C with Relief Valve - 4" Class 150 ANSI RH/LH PDF
STEP
KK4123C with Relief Valve - 4" Class 150 ANSI RH/LH PDF
STEP
K4123C with Plain Head - 2" Class 300 ANSI RH/LH PDF
STEP
KK4123C with Plain Head - 2" Class 300 ANSI RH/LH PDF
STEP
K4123C with Relief Valve - 2" Class 300 ANSI RH/LH PDF
STEP
KK4123C with Relief Valve - 2" Class 300 ANSI RH/LH PDF
STEP
K4123C with Plain Head - 3" Class 150 ANSI RH/LH PDF
STEP
KK4123C with Plain Head - 3" Class 150 ANSI RH/LH PDF
STEP
K4123C with Relief Valve - 3" Class 150 ANSI RH/LH PDF
STEP
KK4123C with Relief Valve - 3" Class 150 ANSI RH/LH PDF
STEP
K4123C with Plain Head - 3" Class 300 ANSI RH/LH PDF
STEP
KK4123C with Plain Head - 3" Class 300 ANSI RH/LH PDF
STEP
K4123C with Relief Valve - 3" Class 300 ANSI RH/LH PDF
STEP
KK4123C with Relief Valve - 3" Class 300 ANSI RH/LH PDF
STEP
K4123C with Plain Head - 2" NPT Opposite PDF
KK4123C with Plain Head - 2" NPT Opposite PDF
K4123C with Relief Valve - 2" NPT Opposite PDF
KK4123C with Relief Valve - 2" NPT Opposite PDF
K4123C with Plain Head - 2" Class 150 ANSI Opposite PDF
KK4123C with Plain Head - 2" Class 150 ANSI Opposite PDF
K4123C with Relief Valve - 2" Class 150 ANSI Opposite PDF
KK4123C with Relief Valve - 2" Class 150 ANSI Opposite PDF
K4123C with Plain Head - 2" Class 300 ANSI Opposite PDF
KK4123C with Plain Head - 2" Class 300 ANSI Opposite PDF
K4123C with Relief Valve - 2" Class 300 ANSI Opposite PDF
KK4123C with Relief Valve - 2" Class 300 ANSI Opposite PDF
K4123C with Plain Head - 3" Class 150 ANSI Opposite PDF
KK4123C with Plain Head - 3" Class 150 ANSI Opposite PDF
K4123C with Relief Valve - 3" Class 150 ANSI Opposite PDF
KK4123C with Relief Valve - 3" Class 150 ANSI Opposite PDF
K4123C with Plain Head - 3" Class 300 ANSI Opposite PDF
KK4123C with Plain Head - 3" Class 300 ANSI Opposite PDF
K4123C with Relief Valve - 3" Class 300 ANSI Opposite PDF
KK4123C with Relief Valve - 3" Class 300 ANSI Opposite PDF
K4123C with Plain Head - 4" Class 150 ANSI Opposite PDF
KK4123C with Plain Head - 4" Class 150 ANSI Opposite PDF
K4123C with Relief Valve - 4" Class 150 ANSI Opposite PDF
KK4123C with Relief Valve - 4" Class 150 ANSI Opposite PDF
K4123C with Plain Head - DIN 50 PN16 Opposite PDF
KK4123C with Plain Head - DIN 50 PN16 Opposite PDF
K4123C with Relief Valve - DIN 50 PN16 Opposite PDF
KK4123C with Relief Valve - DIN 50 PN16 Opposite PDF
K4123C with Plain Head - DIN 65 PN16 Opposite PDF
KK4123C with Plain Head - DIN 65 PN16 Opposite PDF
K4123C with Relief Valve - DIN 65 PN16 Opposite PDF
KK4123C with Relief Valve - DIN 65 PN16 Opposite PDF
K4123C with Plain Head - DIN 80 PN16 Opposite PDF
KK4123C with Plain Head - DIN 80 PN16 Opposite PDF
K4123C with Relief Valve - DIN 80 PN16 Opposite PDF
KK4123C with Relief Valve - DIN 80 PN16 Opposite PDF
L4123C with Plain Head - 2.5" Class 150 ANSI RH/LH PDF
L4123C with Relief Valve - 2.5" Class 150 ANSI RH/LH PDF
LL4123C with Plain Head - 3" Class 150 ANSI RH/LH PDF
LL4123C with Relief Valve - 3" Class 150 ANSI RH/LH PDF
LS4123C with Plain Head - 3" Class 150 ANSI RH/LH PDF
LS4123C with Relief Valve - 3" Class 150 ANSI RH/LH PDF
L4123C with Plain Head - 2" NPT RH/LH PDF
L4123C with Relief Valve - 2" NPT RH/LH PDF
L4123C with Plain Head - 2.5" Class 300 ANSI RH/LH PDF
L4123C with Relief Valve - 2.5" Class 300 ANSI RH/LH PDF
L4123C with Plain Head - 3" Class 150 ANSI RH/LH PDF
L4123C with Relief Valve - 3" Class 150 ANSI RH/LH PDF
L4123C with Plain Head - 3" Class 300 ANSI RH/LH PDF
L4123C with Relief Valve - 3" Class 300 ANSI RH/LH PDF
L4123C with Plain Head - 4" Class 150 ANSI RH/LH PDF
L4123C with Relief Valve - 4" Class 150 ANSI RH/LH PDF
L4123C with Plain Head - 4" Class 300 ANSI RH/LH PDF
L4123C with Relief Valve - 4" Class 300 ANSI RH/LH PDF
LL4123C with Plain Head - 3" Class 300 ANSI RH/LH PDF
LL4123C with Relief Valve - 3" Class 300 ANSI RH/LH PDF
LL4123C with Plain Head - 4" Class 150 ANSI RH/LH PDF
LL4123C with Relief Valve - 4" Class 150 ANSI RH/LH PDF
LL4123C with Plain Head - 4" Class 300 ANSI RH/LH PDF
LL4123C with Relief Valve - 4" Class 300 ANSI RH/LH PDF
LS4123C with Plain Head - 3" Class 300 ANSI RH/LH PDF
LS4123C with Relief Valve - 3" Class 300 ANSI RH/LH PDF
LS4123C with Plain Head - 4" Class 150 ANSI RH/LH PDF
LS4123C with Relief Valve - 4" Class 150 ANSI RH/LH PDF
LS4123C with Plain Head - 4" Class 300 ANSI RH/LH PDF
LS4123C with Relief Valve - 4" Class 300 ANSI RH/LH PDF
L4123C with Plain Head - 2" NPT Opposite PDF
L4123C with Relief Valve - 2" NPT Opposite PDF
L4123C with Plain Head - 2.5" Class 150 ANSI Oppsite PDF
L4123C with Relief Valve - 2.5" Class 150 ANSI Oppsite PDF
L4123C with Plain Head - 2.5" Class 300 ANSI Oppsite PDF
L4123C with Relief Valve - 2.5" Class 300 ANSI Oppsite PDF
L4123C with Plain Head - 3" Class 150 ANSI Oppsite PDF
L4123C with Relief Valve - 3" Class 150 ANSI Oppsite PDF
L4123C with Plain Head - 3" Class 300 ANSI Oppsite PDF
L4123C with Relief Valve - 3" Class 300 ANSI Oppsite PDF
L4123C with Plain Head - 4" Class 150 ANSI Oppsite PDF
L4123C with Relief Valve - 4" Class 150 ANSI Oppsite PDF
LL4123C with Plain Head - 3" Class 150 ANSI Oppsite PDF
LL4123C with Relief Valve - 3" Class 150 ANSI Oppsite PDF
LL4123C with Plain Head - 3" Class 300 ANSI Oppsite PDF
LL4123C with Relief Valve - 3" Class 300 ANSI Oppsite PDF
LL4123C with Plain Head - 4" Class 150 ANSI Oppsite PDF
LL4123C with Relief Valve - 4" Class 150 ANSI Oppsite PDF
LL4123C with Plain Head - 4" Class 300 ANSI Oppsite PDF
LL4123C with Relief Valve - 4" Class 300 ANSI Oppsite PDF
LS4123C with Plain Head - 3" Class 150 ANSI Oppsite PDF
LS4123C with Relief Valve - 3" Class 150 ANSI Oppsite PDF
LS4123C with Plain Head - 3" Class 300 ANSI Oppsite PDF
LS4123C with Relief Valve - 3" Class 300 ANSI Oppsite PDF
LS4123C with Plain Head - 4" Class 150 ANSI Oppsite PDF
LS4123C with Relief Valve - 4" Class 150 ANSI Oppsite PDF
LS4123C with Plain Head - 4" Class 300 ANSI Oppsite PDF
LS4123C with Relief Valve - 4" Class 300 ANSI Oppsite PDF
L4123C with Plain Head - 4" Class 300 ANSI Oppsite PDF
L4123C with Relief Valve - 4" Class 300 ANSI Oppsite PDF
L4123C with Plain Head - DIN 65 PN16 Opposite PDF
L4123C with Relief Valve - DIN 65 PN16 Opposite PDF
L4123C with Plain Head - DIN 80 PN16 Opposite PDF
L4123C with Relief Valve - DIN 80 PN16 Opposite PDF
L4123C with Plain Head - DIN 100 PN16 Opposite PDF
L4123C with Relief Valve - DIN 100 PN16 Opposite PDF
LL4123C with Plain Head - DIN 65 PN16 Opposite PDF
LL4123C with Relief Valve - DIN 65 PN16 Opposite PDF
LL4123C with Plain Head - DIN 80 PN16 Opposite PDF
LL4123C with Relief Valve - DIN 80 PN16 Opposite PDF
LL4123C with Plain Head - DIN 100 PN16 Opposite PDF
LL4123C with Relief Valve - DIN 100 PN16 Opposite PDF
LS4123C with Plain Head - DIN 80 PN16 Opposite PDF
LS4123C with Relief Valve - DIN 80 PN16 Opposite PDF
LS4123C with Plain Head - DIN 100 PN16 Opposite PDF
LS4123C with Relief Valve - DIN 100 PN16 Opposite PDF
Q4123C with Plain Head - 4" Class 150 ANSI RH/LH PDF
Q4123C with Relief Valve - 4" Class 150 ANSI RH/LH PDF
QS4123C with Plain Head - 6" Class 150 ANSI Opposite PDF
QS4123C with Relief Valve - 6" Class 150 ANSI Opposite PDF
Q4123C with Plain Head - 4" Class 300 ANSI RH/LH PDF
Q4123C with Relief Valve - 4" Class 300 ANSI RH/LH PDF
Q4123C with Plain Head - 6" Class 150 ANSI RH/LH PDF
Q4123C with Relief Valve - 6" Class 150 ANSI RH/LH PDF
Q4123C with Plain Head - 6" Class 300 ANSI RH/LH PDF
Q4123C with Relief Valve - 6" Class 300 ANSI RH/LH PDF
QS4123C with Plain Head - 6" Class 300 ANSI Opposite PDF
QS4123C with Relief Valve - 6" Class 300 ANSI Opposite PDF
Q4123C with Plain Head - 6" Class 150 ANSI Opposite PDF
Q4123C with Relief Valve - 6" Class 150 ANSI Opposite PDF
Q4123C with Plain Head - 6" Class 300 ANSI Opposite PDF
Q4123C with Relief Valve - 6" Class 300 ANSI Opposite PDF
Q4123C with Plain Head - DIN 100 PN16 Opposite PDF
Q4123C with Relief Valve - DIN 100 PN16 Opposite PDF
Q4123C with Plain Head - DIN 150 PN16 Opposite PDF
Q4123C with Relief Valve - DIN 150 PN16 Opposite PDF