JQDB-3 Multi- bag filter housing

Introduction
The JQDB-3 Multi- bag filter housing is an enhanced version of the JQDB-2 Multi- bag filter housing, featuring an added clamp quick-opening mechanism. The quick-opening clamp mechanism is a simple, user-friendly, and safe operating system that minimizes downtime, boosts productivity, and reduces worker labor intensity.
The JQDB-3 Multi- bag filter housing can complete lid opening/closing in under 30 seconds, making it especially suitable for applications requiring frequent filter bag replacement. 
Features
1.Quick-opening lid for convenient filter bag replacement, minimizing downtime. 
2.Top cover opens to 105°, with a locking device when closed. 
3.Spring gravity balance device replaces the traditional hand-crank arm, enabling effortless lifting and lowering of the top cover. 
4.Each filter bag is designed with an individual locking device, ensuring perfect sealing between the bag and the filter housing. 
5.Suitable for working conditions requiring frequent filter bag replacement. 
Working Principle
The multi-bag filter is a positive-pressure filtration device, mainly composed of a filter cylinder, filter cylinder cover, quick-opening clamp mechanism, and stainless steel filter bag support cages. Filtrate enters the filter bags through the side inlet pipe of the filter housing. The filter bags are mounted inside the support cages. Liquid passes through the filter bags of the required precision grade to obtain qualified filtrate, while impurity particles are trapped inside the bags. Filtration involves virtually no material consumption.
Application Industries
Applicable Industries: Water treatment, papermaking, fine chemicals, automotive, machining, petrochemical, coatings, food & beverage, electronics, etc. 
Applicable Liquid Types: Wide applicability — various liquids containing trace impurities. 
Main Filtration Functions: Removing particles of various sizes, purifying liquids, protecting critical equipment. 
Filtration Type: Particle filtration, with manual periodic filter bag replacement. 
Parameter

Model

Cylinder Dia. D

Inlet Height A

Outlet Height B

Inlet/Outlet Pipe Length C

Total Length H (mm)

Inlet/Outlet N1/N2

Pressure Gauge Port N3/N4

Drain Port N5/N6

Mounting Size E

Ref. Flow (m³/h)

Filter Elements

Filter Area (㎡)

JQDB-2

Ø400

800

220

80

1560

DN65

G1/4"

G1/2"

Ø530

60

2#×2

1

JQDB-3

Ø450

800

220

100

1580

DN80

G1/4"

G1/2"

Ø580

90

2#×3

1.5

JQDB-4

Ø550

800

230

100

1620

DN100

G1/4"

G1"

Ø680

120

2#×4

2

JQDB-5

Ø600

850

250

120

1620

DN125

G1/4"

G1"

Ø780

150

2#×5

2.5

JQDB-6

Ø635

850

260

150

1665

DN150

G1/4"

G1"

Ø800

180

2#×6

3

JQDB-8

Ø800

850

290

150

1750

DN200

G1/4"

G1"

Ø930

240

2#×8

4

Dimensions are approximate values for reference only. Due to continuous technical improvements, changes may occur without prior notice. Actual data at the time of order shall prevail. Precise dimensions can be provided upon request during installation.
 

Parameter	Value
Filtration Precision	0.5–1700 μm (depends on filter bag grade)
Design Pressure	0.6–1.6 MPa
Max Design Temperature	0–100°C (depends on seal & filter bag material)
Max Pressure Drop	2.4 bar
Replacement Pressure Drop	1.0 bar
Filter Housing Material	304, 316L, Carbon Steel
Gasket Material	NBR (standard), Silicone, FKM Fluororubber
Surface Treatment	Sandblasting, Polishing