Name: Air Pump for Sewage Treatment Unit
Brand: JIEXI Fast Marine Service(Guangzhou) Co., Ltd
SKU: 4RB series
Availability: InStock
Rating: 5 (1 reviews)

Air Pump for Sewage Treatment Unit

No.4RB series

4RB series air pump is a high-pressure vortex-type air pump (also known as an air ring fan) specially designed for the aeration process in wastewater treatment. Its core function is to inject air into the bottom of the wastewater tank, thereby facilitating the decomposition of organic pollutants by microorganisms. Due to its high-pressure output, low maintenance requirements and environmental adaptability, it has become the core equipment for the aeration process in sewage treatment.

Description

Parameter

Single Impeller Specification	Weight （Kg）
4RB 210-0..1.-.	16
4RB 310-0..1.-.	16
4RB 310-0..2.-.	17
4RB 410-0..1.-.	23
4RB 510-0..1.-.	26
4RB 510-0..2.-.	29
4RB 610-0..1.-.	32
4RB 610-0..3.-.	35
Double Impeller Specification	Weight （Kg）
4RB 220-0..2.-.	24
4RB 220-0..5.-.	28
4RB 320-0..4.-.	29
4RB 320-0..5.-.	32
4RB 420-0..2.-.	33
4RB 420-0..5.-.	39
4RB 520-0..2.-.	40
4RB 520-0..7.-.	51
4RB 620-0..3.-.	35
4RB 620-0..5.-.	48
Three Impeller Specification	Weight （Kg）
4RB 530-0..7.-.	62
4RB 530-0..8.-.	68
4RB 630-0..6.-.	85

Type	Min. Distance From the Fan Housing
Type	mm	inch
4RB 2..	34	1.34
4RB 3..	34	1.34
4RB 4..	53	2.09
4RB 5..	53	2.09
4RB 6..	53	2.09

Type	Min. Distance From the Front Cover of the Vortex Air Pump
Type	mm	inch
4RB 2..	30	1.18
4RB 3..	30	1.18
4RB 4..	30	1.18
4RB 5..	30	1.18
4RB 6..	30	1.18

Structure Chart

4RB Series Parts List

Part No.	Description	Part No.	Description
001	Drive motor assembly	069	Spring washer
002	Pump body	072	Middle pump body
005	Rotor	073	Screw bolt
006	Parallel key	074	Square nut
007	Deep groove bearing	078	Gasket
008	Deep groove bearing	087	Cloak
010	Bearing housing	090	Square nut
011	O-ring	096	Shaft seal
012	Gasket	100	Gasket
014	Screw bolt	127	Gasket
021	Sealing ring	128	Gasket
022	Supporting ring	129	Gasket
023	Screw bolt	130	Filling
025	Screw bolt	133	Shaft seal
027	Impeller	134	Shaft tube
029	Screw bolt	139	Gasket
030	Front cover	140	Screw bolt
033	O-ring	149	Square nut
034	Flange	403	Silencer housing
037	Plastic lid	409	Square nut
042	Junction box	413	Silencer filling
047	Gasket	423	Net tube
053	Screw bolt	433	Gasket
055	Sealing element	444	Screw bolt
056	Gasket	450	Motor end cover
058	Hanging earrings	451	Screw bolt
061	Square nut	452	Shaft seal
062	Base plate	459	Square nut
063	Screw bolt	500	Wind cap
064	Spring washer	501	Fan
065	Casing	503	Screw bolt
066	Screw bolt	505	Parallel key
067	Spring washer	506	Snap ring
068	Gasket	670	Capacitor

Working Principle
The 4RB air pump generates high-pressure air flow through the high-speed rotation of a pair of impellers, which is then conveyed through
pipelines to the aeration device at the bottom of the sewage tank (such as micro-porous aeration tubes). The air flow forms micro-sized
bubbles in the water, slowly rising and fully contacting the sewage to achieve the following goals:
1. Oxygenation: Increase the concentration of dissolved oxygen (DO), providing necessary conditions for aerobic microorganisms to decompose organic matter.
2. Mixing: Prevent the precipitation of suspended matter and ensure that microorganisms and contaminants are evenly in contact.
3. Biochemical reaction: Enhances microbial metabolic efficiency and accelerates wastewater purification.

Advantages
1. High-performance design
High pressure and large flow: The rated pressure can reach 100 kPa, meeting the requirements for deep water aeration.
Double impeller structure: Some models (such as 4RB-510-H26) adopt a two-stage impeller, resulting in an increase of over 30% in wind
pressure and flow rate compared to a single-stage design.

2. Durability and adaptability
All-aluminum body: Corrosion-resistant, lightweight, suitable for humid environments .
Wide temperature and voltage operating range: Supports continuous operation in an environment with temperatures ranging
from -20℃ to 80℃ and in high-altitude areas, with strong stability.

3. Environmental protection and low consumption
Oil-free operation: The gas is transported in a pure and pollution-free manner, meeting environmental protection requirements.
Low-noise design: Operating noise ≤ 75 dB, reducing industrial noise pollution .

4. Low maintenance cost
It can operate continuously for 20,000 hours without maintenance, reducing downtime losses.

Air Pump for Sewage Treatment Unit

Description

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