Drain Pump for Industrial Drainage Systems | Specifications & Selection

Product Specifications

Technical details and manufacturing context for Drain Pump

Definition

The Drain Pump is a mechanical component used within a Drain & Recovery System to actively transfer wastewater, condensate, or other process liquids from collection points to designated disposal or recovery locations. Its primary function is to prevent liquid accumulation that could impair system performance, cause overflow, or lead to equipment damage. By maintaining proper drainage, the pump supports continuous operation and operational efficiency in industrial processes.

This pump operates on the principle of centrifugal force. An electric motor drives an impeller, which rotates at high speed, drawing liquid into the pump housing through an inlet. The rotating impeller imparts kinetic energy to the liquid, and the resulting centrifugal force pushes it outward, increasing its pressure. The liquid is then discharged through an outlet port against the system's backpressure. This mechanism allows the pump to move liquids from lower to higher elevations or through piping systems with resistance.

Typical applications include removing condensate from compressed air systems, draining water from collection tanks, and transferring process liquids in manufacturing environments. The pump is available in materials such as cast iron and stainless steel, with stainless steel (e.g., 316L) recommended for corrosive or aggressive liquids. Key selection parameters include flow rate (5–50 L/min), head (3–15 m), operating pressure (1.0–1.6 MPa), motor power (0.25–1.5 kW), supply voltage (220–380 V AC per IEC 60038), frequency (50–60 Hz per IEC 60038), operating temperature (-20 to 80 °C), IP rating (IP54–IP68 per IEC 60529), and weight (5–20 kg). These values are reference ranges; actual specifications must be confirmed with the manufacturer for the specific model and application.

When selecting a drain pump, verify that the required flow rate and head match the system's needs, and that the operating pressure, temperature, and fluid compatibility are within the pump's limits. Check the electrical supply (voltage, frequency, phase) and the required IP rating for the installation environment. Always consult the legal manufacturer or supplier to confirm model-specific values and compliance with relevant standards.

Working Principle

The drain pump uses an electric motor to drive an impeller. As the impeller rotates, it creates a low-pressure zone at the inlet, drawing liquid into the pump housing. The centrifugal force generated by the rotating impeller accelerates the liquid outward, increasing its velocity and pressure. The liquid is then expelled through the outlet port, overcoming system resistance and lifting the liquid to the required discharge point. This continuous process effectively removes liquids from collection points, preventing accumulation and maintaining system efficiency.

Common Materials

Cast Iron, Stainless Steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Flow Rate	5–50 L/min	Select based on required drainage capacity
Head	3–15 m	Maximum lift height at zero flow
Operating Pressure	1.0–1.6 MPa
Motor Power	0.25–1.5 kW	Match to required flow and head
Supply Voltage	220–380 V AC	Single or three phaseIEC 60038
Frequency	50–60 Hz	Compatible with regional gridsIEC 60038
Operating Temperature	-20–80 °C	For pumped liquid; higher requires special seals
IP Rating	IP54–IP68	Higher for submerged or dusty environmentsIEC 60529
Material	316L	Corrosion-resistant for aggressive liquidsASTM A240
Weight	5–20 kg	Affects installation and handling

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Impeller
Rotates to create centrifugal force for liquid movement

Material: Stainless Steel
Motor Housing Part
Protects and contains the electric motor

Material: Cast Iron
Seal Assembly
Prevents liquid leakage along the drive shaft

Material: Ceramic/Carbon
Electric Motor
Drives the assembly; the BOM already lists the housing built to contain it.
Pump Housing
The volute the impeller turns in; the low-pressure zone forms against it.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Drain & Recovery System

View system integration details

Manufacturers of Drain Pump

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Chinafore

Hangzhou, Zhejiang, CN

Founded 2003250+ staff50,000 square meters

ISO 9001 ISO 14001

Also makes: Condensate Pump, Ductwork System, Flexible Duct and 4 more

Listed on the company's own website · profile compiled by CNFX from public sources

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Frequently Asked Questions

What is the typical flow rate range for a drain pump?

The flow rate range is 5 to 50 liters per minute, but the required value depends on the drainage capacity needed for your specific application. Always confirm the exact flow rate with the manufacturer for your model.

Can the drain pump handle corrosive liquids?

The pump is available in cast iron and stainless steel. For aggressive or corrosive liquids, stainless steel (such as 316L) is recommended. Verify material compatibility with the manufacturer based on the liquid's chemical properties.

What is the maximum operating pressure?

The operating pressure range is 1.0 to 1.6 MPa. However, the actual maximum pressure depends on the specific model and installation. Consult the manufacturer for the exact pressure rating.

What IP rating is suitable for outdoor or dusty environments?

The IP rating ranges from IP54 to IP68. For submerged or dusty conditions, a higher rating such as IP68 is recommended. Confirm the required protection level with the manufacturer based on your installation environment.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 10 bar
flow rate:	0.5 to 50 L/min
temperature:	-10°C to 80°C
slurry concentration:	Up to 5% solids by weight

Drain Pump

Product Specifications

Applied To / Applications

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Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards