Ammonia Pumps

Designed exclusively to handle ammonia and other low vapor pressure fluids in both refrigeration and transfer applications, these pumps are operated at low speeds to minimize flashing. They feature double mechanical seals with pressurized seal chamber and oil reservoir to prevent release of gas to atmosphere. The pressure-lubricated idler bushing provides a constant film of liquid between the idler bushing and pin to maximize bushing life. An adjustable return-to-tank pressure relief valve is standard equipment.

Click here to learn more about Viking pumps for the refrigeration industry

The Ammonia Pump Series includes the following models:

4925 - Cast Iron Double Mechanical Sealed Pumps

Performance
Capacity	0 - 14 m³/hr	0 - 60 GPM
Pressure	0 - 3.5 BAR	0 - 50 PSI
Viscosity	Thin	Thin
Temperature	-40 C minimum	-40 F minimum

Specifications

Size	Standard Port	Nominal Capactiy at Maximum Speed		Maximum Speed	Maximum Pressure*
Size	Inches	m³/hr	GPM	RPM	BAR	PSI
HL	1.5	2	10	780	3.5	50
K	2	5	20	180	3.5	50
KK	2	7	30	280	3.5	50
LQ	2.5	11	50	280	3.5	50
LL	3	14	60	280	3.5	50

* Max. Differential Pressure

Literature

Each of these documents will open in a new window as a .pdf

Model	Drawing*	Service Manual	Brochure	Catalog
HL4925	Inch	English Chinese Deutsch Español Français Italiano Português Russian	English Chinese Deutsch Español Français Italiano Português Russian	English
K4925 KK4925	Inch
LQ4925	Inch
LL4925	Inch

*These drawings reflect standard construction pumps only. For special construction drawings, please contact us.

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