Editorial Technical Reference

Filter Vessel

This page explains how Filter Vessel is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

The pressure vessel housing the filter media in a multi-media filtration system.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Filter Vessel

Definition
A filter vessel is a cylindrical pressure container designed to hold layered filter media, such as anthracite, sand, and garnet, in a multi-media filtration system. Its primary function is to provide structural integrity to withstand operating pressures while allowing water to flow through the media layers for effective particulate removal. The vessel is typically constructed from carbon steel, stainless steel, or fiberglass reinforced plastic, depending on the application and corrosion requirements. Key design parameters include design pressure (1.0–1.6 MPa), design temperature (-20–120°C), flow rate (10–200 m³/h), filtration area (0.5–10 m²), vessel diameter (300–3000 mm), vessel height (1200–6000 mm), shell thickness (6–30 mm), material grade (Q345R/304/316L), corrosion allowance (1–3 mm), inlet/outlet size (DN50–DN300), weight (200–8000 kg), and surface treatment (Sa2.5+Epoxy). These values are reference ranges and must be verified for the specific model and application. The vessel is designed and manufactured in accordance with standards such as GB 150, GB/T 9019, GB/T 713, GB/T 3280, GB/T 9119, and ISO 8501-1. It is essential to confirm all model-specific parameters and applicable standards with the legal manufacturer or supplier before procurement or installation.
Working Principle
Water enters the filter vessel under pressure and flows downward through multiple layers of filter media with decreasing coarseness. Suspended solids are trapped within the media layers, and clean water exits through the underdrain system at the bottom. During backwash, the flow is reversed to remove accumulated particulates and clean the media. The vessel's design must accommodate both normal filtration and backwash cycles, ensuring structural integrity under varying pressure and flow conditions.
Common Materials
Carbon Steel, Stainless Steel, Fiberglass Reinforced Plastic
Technical Parameters
ParameterTypical rangeNotes & selection driver
Design Pressure1.0–1.6 MPaGB 150
Design Temperature-20–120 °CAbove 120°C gasket degradationGB 150
Flow Rate10–200 m³/hBased on filtration velocity 5–15 m/h
Filtration Area0.5–10 Depends on media type and flow
Vessel Diameter300–3000 mmStandard sizes per GB/T 9019
Vessel Height1200–6000 mmIncludes dished ends and supports
Shell Thickness6–30 mmCalculated per pressure and corrosion allowanceGB 150
Material GradeQ345R/304/316LCarbon steel for economy, SS for corrosionGB/T 713, GB/T 3280
Corrosion Allowance1–3 mmHigher for aggressive mediaGB 150
Inlet/Outlet SizeDN50–DN300Flanged connections standardGB/T 9119
Weight200–8000 kgDepends on size and material
Surface TreatmentSa2.5+EpoxyInternal lining optionalISO 8501-1

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
  • Shell
    Main cylindrical body that contains the filter media and withstands pressure
    Material: Carbon Steel/Stainless Steel
  • Upper Head
    Top closure with inlet connection and access for media loading
    Material: Carbon Steel/Stainless Steel
  • Lower Head Part
    Bottom closure with outlet connection and underdrain support
    Material: Carbon Steel/Stainless Steel
  • Manway
    Access opening for inspection and media replacement
    Material: Carbon Steel/Stainless Steel
  • Underdrain System
    Distributes backwash water evenly and collects filtered water
    Material: Stainless Steel/Plastic

Applied To / Applications

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

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 10 bar (150 psi) standard, higher ratings available
flow rate: 5-100 m³/h per vessel (depends on diameter and media)
temperature: -20°C to 120°C (dependent on seal material)
slurry concentration: Up to 5% solids by weight for standard designs
Media Compatibility
✓ Carbon steel with epoxy lining for neutral pH water ✓ 316L stainless steel for corrosive fluids ✓ FRP (fiberglass) for chemical resistance
Unsuitable: Hydrofluoric acid environments (attacks glass media and most metals)
Sizing Data Required
  • Required flow rate (m³/h or GPM)
  • Total suspended solids (TSS) concentration in feed
  • Desired filtration cycle time between backwashes

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Filter Media Degradation
Cause: Chemical incompatibility with process fluid leading to media breakdown, swelling, or dissolution, reducing filtration efficiency and potentially contaminating downstream equipment.
Seal/Bypass Failure
Cause: Improper installation, thermal cycling, or mechanical stress causing gasket/O-ring failure or housing seal leakage, allowing unfiltered fluid to bypass the filter element.
Maintenance Indicators
  • Rapid pressure drop increase across the filter (differential pressure spike) indicating severe clogging or media collapse
  • Visible fluid leakage from housing seals or evidence of bypass (contaminants downstream despite filter in service)
Engineering Tips
  • Implement condition-based monitoring with differential pressure trending and scheduled replacement based on pressure rise curves rather than fixed time intervals
  • Ensure proper installation torque sequences and use compatible seal materials verified for specific process fluid chemistry and operating temperature ranges

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ASME BPVC Section VIII (Pressure Vessel Standards) PED 2014/68/EU (Pressure Equipment Directive)

Quoted from the published standard.

Manufacturing Precision
  • Wall Thickness: +/-0.5mm
  • Flange Flatness: 0.1mm per 300mm
Quality Inspection
  • Hydrostatic Pressure Test
  • Visual and Dimensional Inspection

Manufacturers of Filter Vessel

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

FAB
Beijing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Guangzhou Chunke Environmental
Guangzhou, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
JX Filtration (China) Co., Ltd
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Wenzhou Kosun Fluid Equipment Co.,Ltd
Wenzhou, Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Supply Chain Compatible Machinery & Devices

Automated Powder Coating System

Integrated industrial system for applying dry powder coatings to metal substrates.

Explore Specs →
Centrifugal Pump Impeller

The centrifugal pump impeller is a critical rotating component that converts mechanical energy from the motor into kinetic energy in fluid systems.

Explore Specs →
High-Precision CNC Laser Cutting Machine

Computer-controlled industrial machine using focused laser beams to cut sheet metal with micron-level accuracy.

Explore Specs →
Industrial-Grade Hydraulic Cylinder Piston Rod

This industrial-grade piston rod is a precision-ground cylindrical component designed for use in hydraulic cylinders.

Explore Specs →

Frequently Asked Questions

What is the typical design pressure range for a filter vessel?

The design pressure range is typically 1.0–1.6 MPa, but this must be confirmed for the specific model and application.

What materials are commonly used for filter vessels?

Common materials include carbon steel, stainless steel, and fiberglass reinforced plastic. Material grade examples include Q345R, 304, and 316L, depending on corrosion requirements.

What standards apply to filter vessel design and manufacturing?

Relevant standards include GB 150 for pressure vessels, GB/T 9019 for vessel dimensions, GB/T 713 and GB/T 3280 for material grades, GB/T 9119 for flanges, and ISO 8501-1 for surface treatment. Always verify compliance with the manufacturer.

How does backwashing work in a filter vessel?

During backwash, the flow is reversed, causing water to flow upward through the media, expanding it and flushing out trapped particulates. This process cleans the media and restores filtration efficiency.

Data Basis

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

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
Buyer enquiry

Request manufacturing insight for Filter Vessel

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes
Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here
We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman
CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim
A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

Your business information is used only to process this request.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Sorry, we couldn't send your message. Please try again, or email us at contact@cnfx.com.

Need to Manufacture Filter Vessel?

Compare manufacturer profiles with relevant product and process capability.

Previous Product
Z-axis Ram/Spindle
Last Product
Get QuotesChat