Backwash System for Chemical Filtration | Technical Specifications

Product Specifications

Technical details and manufacturing context for Backwash System

Definition

The Backwash System is an integral component of the Automated Chemical Filtration and Separation System, designed to periodically clean filtration elements by reversing the flow direction. It operates automatically based on pressure differentials or timed intervals to dislodge and flush out trapped particles, chemical residues, and fouling materials from filter media, thereby maintaining optimal filtration performance and extending equipment lifespan in chemical processing applications. The system is constructed with materials suitable for chemical environments, including Stainless Steel 316L, PTFE seals, and High-Density Polyethylene. Key operational parameters include a backwash pressure of 0.2–0.4 bar, a duration of 5–15 seconds per cycle, and a frequency of 1–4 cycles per hour. The system supports flow rates of 10–50 m³/h and filtration precision of 5–100 μm, with an operating temperature range of 5–80 °C and operating pressure of 0.4–1.0 MPa. Electrical requirements include a voltage of 220–380 V AC and power consumption of 1.5–7.5 kW. The system's weight ranges from 200–800 kg, and dimensions are customizable, with a typical size of 1200×800×1500 mm (L×W×H). Material options include 304 or 316L stainless steel per ASTM A240. These values are directory references and must be verified with the legal manufacturer or supplier for the specific model and application. The system is designed for integration into larger filtration systems, and proper selection of parameters such as flow rate and filtration precision is critical to match process demands. Regular maintenance and monitoring of pressure differentials are recommended to ensure optimal performance and to prevent damage to seals or media.

Working Principle

The system operates by temporarily reversing the fluid flow direction through the filtration media. When activated, typically by automated controls, valves redirect flow so that clean fluid (often filtered product or dedicated backwash fluid) flows backward through the filter. This reverse flow dislodges accumulated contaminants from the filter surface and internal pores, carrying them to waste or a separate collection system before normal filtration resumes. The backwash cycle is initiated based on pressure differentials or timed intervals, ensuring efficient cleaning without interrupting the overall filtration process.

Common Materials

Stainless Steel 316L, PTFE Seals, High-Density Polyethylene

Technical Parameters

Parameter	Typical range	Notes & selection driver
Backwash PressureRequired	0.2–0.4 bar	Pressure applied during backwash cycle
Backwash DurationRequired	5–15 seconds	Time duration of each backwash cycle
Backwash FrequencyRequired	1–4 cycles/hour	Number of backwash cycles per operating hour
Flow Rate	10–50 m³/h	Determines system capacity; match to process demand.
Filtration Precision	5–100 μm	Select based on particle size to be removed.
Operating Temperature	5–80 °C	Exceeding limits may damage seals or media.
Operating Pressure	0.4–1.0 MPa	Below 0.4 MPa insufficient flow; above 1.0 MPa may damage media.
Voltage	220–380 V AC	Three-phase for motors; single-phase for controls.
Power Consumption	1.5–7.5 kW	Depends on pump size and backwash flow.
Material	304/316L	316L for corrosive media; 304 for general use.ASTM A240
Weight	200–800 kg	Affects installation and structural support.
Dimensions (L×W×H)	1200×800×1500 mm	Customizable; ensure adequate clearance for maintenance.

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

Backwash Pump
Provides reverse flow pressure for cleaning cycle

Material: Stainless Steel 316L
Backwash Valve Assembly
Controls flow direction switching between filtration and backwash modes

Material: Stainless Steel with PTFE seals
Backwash Control Module
Automates backwash cycle timing and activation based on system parameters

Material: Industrial-grade electronics enclosure
Waste Collection Section
Takes the dislodged solids away instead of letting them settle back on the media.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Backwash System.

Applied To / Applications

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

Automated Chemical Filtration and Separation System

View system integration details

Manufacturers of Backwash System

Manufacturer profiles associated with Backwash System.

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Frequently Asked Questions

What is the purpose of a backwash system?

The backwash system cleans filtration media by reversing fluid flow to dislodge and remove accumulated contaminants, restoring filtration efficiency and extending media life.

How is the backwash cycle initiated?

The cycle is typically initiated automatically based on pressure differential across the filter or at timed intervals, as controlled by the system's automation.

What are the typical operating parameters?

Typical parameters include backwash pressure of 0.2–0.4 bar, duration of 5–15 seconds, frequency of 1–4 cycles per hour, and operating temperature of 5–80 °C. These are reference values and must be verified for the specific model.

What materials are used in the backwash system?

Common materials include Stainless Steel 316L, PTFE seals, and High-Density Polyethylene. Material selection depends on the chemical compatibility and process requirements.

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 (145 psi) operating, 15 bar (217 psi) max
flow rate:	10-500 m³/h (44-2200 gpm) per unit
temperature:	5°C to 80°C (41°F to 176°F)
slurry concentration:	Up to 5% solids by weight

Backwash System

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