Details

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SERIES 125 AND 4125, AK AND AL MODELS
STANDARD CONSTRUCTION

It is the unique and unusually simple construction that has made our rotary pumps so adaptable to so many diversified installations. The possess excellent vacuum developing characteristics and operate equally well in either direction. Because of the cushioned action in providing a continuous and steady stream of liquid without foaming or churning, it is adaptable to an unlimited number of industrial applications.

The rugged construction of these heavy-duty pumps assures long life and peak, trouble-free operation on normal-duty installation and outstanding performance when handling liquids at greater pressures.

These heavy-duty pumps are furnished as standard with packed-type or mechanical seal construction for shaft protection and prevention of leakage. Packed pumps provide extra-deep stuffing box. The rotary-type mechanical seal works with, rather than against, pressure. It is selfadjusting and seals without leakage. Because of its method of sealing it prevents scoring of the pump drive shaft.

These heavy-duty pumps with mechanical seal can handle liquids with viscosities up to 15,000 SSU.

SPECIFICATIONS

Model Numbers		Port Size	③ Nominal Pump Rating		Maximum Hydrostatic Pressure		④ Maximum Recommended Discharge Pressure When Handling 100 SSU Liquid At Nominal Rated Speeds	② Maximum Recommended Temperature for Cataloged Pump °F (°C)		Approximat e Shipping Weight With Valve
Packed	①Mech. Seal	Inches	GPM (m3/hr)	RPM	PSIG (BAR)		PSIG	Packed	Mech. Seal	Pounds (kg)
AK125	AK4125	2	50(11)	1200	400(28)		150	300(149)	225(107)	78(35)
AL125	AL4125	2	75(17)	1200	400(28)		150	300(149)	225(107)	81(37)

① For mechanical seal pumas on applications with viscosities above 15,000 SSU (3,300 cSt), provide details for recommendation.
② Standard seal can be used from –20°F to +225°F. With special construction, temperatures from –60°F to +650°F can be handled with this series pumps.
③ Nominal rating based on handling thin liquids.
④ For maximum recommended discharge pressures when handling other viscosities and/or other speeds, see performance curves.
Performance curves also show preferred construction.
Note: This sizes are not available in steel-fitted construction. They are not available neither in bronze fitted construction.