JQDB-2 Multi- bag filter housing

Introduction
The JQDB-2 Multi- bag filter housing is developed on the basis of the JQDB-1 Multi- bag filter housing, with a quick-opening mechanism and a balancing mechanism added, making operation simple and fast. It overcomes the cumbersome and time-consuming bag replacement problems of conventional multi-bag filters. The spring-balanced assist-opening mechanism can be held stationary at any angle, ensuring safety and reliability.
The quick-opening/closing mechanism is the simplest, most user-friendly and safest operating system, minimizing downtime, boosting productivity and reducing operating costs. A unique pressure ring ensures bag sealing. The balancing mechanism of the JQDB-2 Multi- bag filter housing makes opening and closing the top cover effortless. The compact design minimizes liquid loss.
Features
1.Quick-opening cover for easy bag replacement, shortening downtime.
2.Top cover opening angle: 105°, with a locking device when closed.
3.Spring-gravity balancing device replaces the traditional hand swing arm, effortlessly lifting the top cover up and down.
4.Each filter bag is designed with an individual locking device, ensuring perfect sealing between the bag and the filter.
5.Suitable for applications requiring frequent bag replacement.
Working Principle
The multi-bag filter is a positive-pressure filtration device, mainly composed of a filter housing, filter cover, quick-opening mechanism, stainless-steel filter bags with support cages, etc. Filtrate enters the bags through the side inlet pipe of the filter housing. The bags are mounted inside reinforcement net baskets. Liquid passing through the filter bags of the required precision grade yields qualified filtrate, while impurity particles are trapped inside the bags. Filtration consumes virtually no material.
Application Industries
Industries: Water treatment, paper making, fine chemicals, automotive, machining, petrochemical, coatings, food & beverage, electronics, etc.
Liquid types: Wide applicability, various liquids containing trace impurities.
Main filtration function: Removing particles of various sizes, purifying liquids, protecting critical equipment.
Filtration type: Particle filtration, manual periodic bag replacement.
Parameters

Model	Shell Dia. D	Inlet Height A	Outlet Height B	Inlet/Outlet Pipe Length C	Total Length H (mm)	Inlet/Outlet N1/N2	Pressure Gauge N3/N4	Drain N5/N6	Mounting Size E	Reference Flow (m³/h)	Bag Qty	Filter Area (㎡)	Open Height H1
JQDB-2	Ø400	1080	380	80	1320	DN65	G1/4"	G1/2"	Ø530	60	2#×2	1	1760
JQDB-3	Ø450	1080	400	100	1350	DN80	G1/4"	G1/2"	Ø580	90	2#×3	1.5	1830
JQDB-4	Ø500	1150	450	100	1450	DN100	G1/4"	G1"	Ø630	120	2#×4	2	1990
JQDB-5	Ø550	1150	480	120	1460	DN125	G1/4"	G1"	Ø680	150	2#×5	2.5	2060
JQDB-6	Ø600	1180	520	120	1540	DN150	G1/4"	G1"	Ø780	180	2#×6	3	2160
JQDB-8	Ø750	1280	650	150	1730	DN200	G1/4"	G1"	Ø930	240	2#×8	4	2460

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.
 

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