Shaft Rotation For Pump Without Safety Relief Valve; Shaft Rotation For Pump With Safety Relief Valve - Johnson Pump SPXFLOW TopGear BLOC Series Instruction Manual

3.17.4 Shaft rotation for pump without safety relief valve

The shaft rotation determines which port of the pump is suction and which is discharge.
The relation between the shaft rotation and the suction/discharge side is indicated by the rotation
arrow plate attached at the top cover of a pump without safety relief valve.
Note! Shaft rotation is always viewed from the shaft end towards the pump.
Unless otherwise specified on the order, TopGear pumps are built at the factory for clockwise
rotation (left figure above), which we define as the standard direction of rotation.
The small arrows 2 and 3 indicate the flow direction of the pumped liquid.
Always make sure that shaft rotation corresponds with the position of the discharge and suction
ports and the direction indicated by the rotation arrow plate.

3.17.5 Shaft rotation for pump with safety relief valve

The shaft rotation determines which port of the pump is suction and which is discharge.
The relation between the shaft rotation and the suction/discharge side is indicated by the rotation
arrow plate attached at the valve casing of the safety relief valve.
Note! Shaft rotation is always viewed from the shaft end towards the pump.
Unless otherwise specified on the order, TopGear pumps are built at the factory for clockwise
rotation (left figures above), which we define as the standard direction of rotation.
28
2
3 1
2
3 1
TG BLOC15-50, 23-65
1 2
3
TG BLOC58-80, 86-100
1. Direction of rotation of pump shaft
2. Suction side
3. Discharge side
A.0500.751 – IM-TGBLOC/01.00 EN (10/2020)