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<strong>TP</strong> Series 300 pumps<br />
<strong>TP</strong>, <strong>TP</strong>D, <strong>TP</strong>E<br />
<strong>TP</strong>, <strong>TP</strong>D, <strong>TP</strong>E Series 300 pumps are equipped with<br />
high-efficiency motors.<br />
<strong>TP</strong> Series 300 pumps with bronze impeller are suitable<br />
for pumping brine.<br />
Materials<br />
4<br />
Fig. 4 <strong>TP</strong> Series 300<br />
Technical data<br />
Flow rate: up to 850 m 3 /h<br />
Head: up to 93 m<br />
Liquid temperature: –25 to +140 °C<br />
Max. operating pressure: 16 bar<br />
GR8259<br />
3<br />
2<br />
1<br />
Fig. 5 Sectional drawing of <strong>TP</strong> Series 300<br />
Material specification<br />
TM03 1212 1405<br />
Direction of rotation:<br />
Construction<br />
Clockwise<br />
Grundfos <strong>TP</strong>, <strong>TP</strong>D Series 300 pumps are single-stage,<br />
close-coupled pumps with in-line suction and discharge<br />
ports of identical diameter.<br />
The pumps are equipped with a fan-cooled asynchronous<br />
motor. Motor and pump shafts are connected via<br />
a rigid sleeve coupling.<br />
Most <strong>TP</strong> Series 300 pumps are available as singlehead<br />
(<strong>TP</strong>) and twin-head (<strong>TP</strong>D) models.<br />
<strong>TP</strong> Series 300 pumps have flange connection and are<br />
equipped with PN 16 flanges.<br />
The pumps are equipped with an unbalanced mechanical<br />
shaft seal.<br />
The pumps are of the top-pull-out design, i.e. the power<br />
head (motor, pump head and/or motor stool and impeller)<br />
can be removed for maintenance or service while<br />
the pump housing remains in the pipework.<br />
The twin-head pumps are designed with two parallel<br />
power heads. A non-return flap valve in the common<br />
discharge port is opened by the flow of the pumped liquid<br />
and prevents backflow of liquid into the idle pump<br />
head.<br />
As radial and axial forces are absorbed by the fixed<br />
bearing in the motor drive-end, the pump requires no<br />
bearing.<br />
The impeller is hydraulically balanced to minimize axial<br />
forces.<br />
Pos. Component Material EN/DIN<br />
1 Pump housing Cast iron EN-GJL-250 EN-JL 1040<br />
2 Impeller<br />
3<br />
4<br />
Shaft/sleeve<br />
coupling<br />
Pump head/<br />
motor stool<br />
Secondary seals<br />
Rotating seal<br />
face<br />
Stationary seat<br />
Cast iron EN-GJL-200,<br />
bronze CuSn5Zn5Pb<br />
Steel/stainless steel<br />
Mechanical shaft seal<br />
EN-JL 1030<br />
2.1096.01<br />
Cast iron EN-GJL-250 EN-JL 1040<br />
EPDM<br />
Metal-impregnated carbon,<br />
silicon carbide<br />
Silicon carbide<br />
Three types of unbalanced mechanical shaft seal are<br />
available as standard:<br />
• BAQE<br />
The BAQE shaft seal is a Grundfos rubber bellows<br />
seal with carbon/silicon carbide seal faces and secondary<br />
seals of EPDM.<br />
• GQQE<br />
The GQQE shaft seal is a Grundfos rubber bellows<br />
seal with reduced silicon carbide/silicon carbide<br />
seal faces and secondary seals of EPDM.<br />
• BQQE<br />
The BQQE shaft seal is a Grundfos rubber bellows<br />
seal with silicon carbide/silicon carbide seal faces<br />
and secondary seals of EPDM.<br />
Information on a selection of common pumped liquids<br />
with recommended shaft seals is shown on page 18.<br />
22
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