How to Choose a Suction Hose: Pump, Vacuum and Diameter Guide
Suction hose Pump opening is only initial information in selection. Flow rate, suction height, total line length, vacuum, fluid and bending radius of the hose should be examined together.
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Difference between suction and discharge hose
Suction hose It requires a spiral or reinforcement structure that will maintain its form under negative pressure. In discharge lines, internal pressure and connection security come to the fore. Two hoses that appear to be the same diameter may not provide the same performance.
Choose diameter according to flow rate
As the inner diameter decreases, flow rate and friction loss may increase at the same flow rate. Pump inlet diameter, target flow rate, suction line length and level difference should be evaluated together.
Vacuum and bending radius
Inadequately reinforced or sharply bent hose may flatten in the vacuum. The permissible vacuum, minimum bending radius, operating temperature and spiral pitch must be checked in the technical table.
Yellow, green and heavy duty
Color alone is not an indicator of product class. Internal diameter, wall thickness, weight, spiral reinforcement and fluid type should be compared.
Clamp and first start
The hose mouth must fit snugly, the clamp must not cut the hose and the connection must not allow air. At first start-up, vibration, air bubbles, constriction and leakage are checked.
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Frequently Asked Questions
How many mm should the pump suction hose be?
Pump inlet diameter, target flow rate, line length and suction height are evaluated together.
Why does the suction hose get crushed in vacuum?
Insufficient spiral reinforcement, sharp bending, temperature or high vacuum may cause flattening.
When to choose transparent spiral suction hose?
May be preferred when viewing flow and sediment is important; Mechanical conditions are also controlled.
Can the yellow suction hose be used for irrigation?
The pump can be used if the flow rate and fluid conditions are suitable.
Are a suction hose and a garden hose the same?
No. The suction hose is designed to withstand negative pressure.
How to choose clamps?
A clamp that is suitable for the outer diameter, wide and will tighten the hose without cutting it is selected.
Why Is the Vacuum Rating Important?
It shows whether the hose can maintain its form under the negative pressure created by the pump.
Is the suction hose suitable for hot water?
Operating temperature varies by product series; The manufacturer's table must be confirmed.
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