Editorial Technical Reference

Reagent Storage Hopper

This page explains how Reagent Storage Hopper is classified within Chemical Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A hopper designed for temporary storage and controlled discharge of reagents in injection systems.

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Reagent Storage Hopper in a manufacturing environment
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Product Specifications

Technical details and manufacturing context for Reagent Storage Hopper

Definition
The Reagent Storage Hopper is a component used within reagent injection systems in chemical manufacturing. It provides temporary storage capacity for liquid or powdered reagents, ensuring a consistent material flow to downstream injection points through controlled discharge mechanisms. The hopper is available in capacities from 50 to 500 liters, with custom sizes available upon request. It operates within a pressure range of 1.0 to 1.6 MPa. The operating temperature range is -40 to 85°C, with seals degrading above 85°C. Discharge accuracy is ±0.5%, ensuring consistent reagent dosing. The hopper is constructed from stainless steel 316L (ASTM A240) or food-grade polyethylene, with corrosion-resistant coatings available. Surface finish ranges from 0.4 to 0.8 μm Ra (ISO 4287) to prevent reagent adhesion. Ingress protection is rated IP54 to IP65 (IEC 60529), providing dust-tight and water-resistant operation. The power supply for control systems and sensors is 24 V DC ±10%. Weight ranges from 150 to 800 kg, depending on capacity and material thickness. Connection sizes are DN25 to DN80 with sanitary flange connections per DIN 11851. This hopper is designed for integration into larger injection systems, with controlled discharge achieved through gravity flow or mechanical assistance such as augers or vibrators. Flow rate is regulated by valves or gates to maintain consistent reagent supply. For selection, verify model-specific parameters, including capacity, pressure, temperature, and material compatibility, with the legal manufacturer or supplier. Confirm that the hopper meets applicable standards and is suitable for the intended reagent and process conditions. Regular maintenance includes checking seals, valves, and discharge mechanisms for wear or degradation. Failure indicators include inconsistent discharge, leaks, or seal deterioration. Always consult the manufacturer for detailed specifications and installation guidelines.
Working Principle
Reagents are loaded into the hopper where they are temporarily stored. Controlled discharge is achieved through gravity flow or mechanical assistance (such as augers or vibrators), with flow rate regulated by valves or gates to maintain consistent reagent supply to the injection system. The hopper's design ensures that material flow remains steady, preventing blockages or surges. The discharge accuracy of ±0.5% supports precise dosing. The hopper operates within specified pressure and temperature limits, and its materials and surface finish are chosen to resist corrosion and prevent reagent adhesion. The control system, powered by 24 V DC, monitors and adjusts discharge as needed. Proper operation requires that the hopper is installed correctly and that all seals and mechanical parts are maintained within their operational limits.
Common Materials
Stainless steel 316L, Food-grade polyethylene, Corrosion-resistant coatings
Technical Parameters
ParameterTypical rangeNotes & selection driver
Capacity50–500 LCustom sizes available
Operating Temperature-40–85 °CSeals degrade above 85°C
Discharge Accuracy±0.5 %Ensures consistent reagent dosing
Material316LCorrosion-resistant stainless steelASTM A240
Surface Finish0.4–0.8 μm RaSmooth finish prevents reagent adhesionISO 4287
Ingress ProtectionIP54–IP65Dust-tight and water-resistantIEC 60529
Power Supply24 ±10% V DCFor control system and sensors
Weight150–800 kgDepends on capacity and material thickness
Connection SizeDN25–DN80Sanitary flange connectionsDIN 11851

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
  • Hopper Body
    Main storage chamber for reagents
    Material: Stainless steel or corrosion-resistant polymer
  • Discharge Valve/Gate
    Controls flow of reagent from hopper
    Material: Stainless steel with PTFE seals
  • Level Sensor
    Monitors reagent level in hopper
    Material: Stainless steel housing with electronic components
  • Agitator/Mixer
    Prevents reagent settling or bridging
    Material: Stainless steel shaft with polymer blades
  • Discharge Control Unit
    Watches the level and flow and trims the discharge to hold the dosing rate; runs on 24 V DC.
  • Vibrator Optional
    Shakes the hopper wall to keep reagent flowing when gravity alone will not empty it.

Application & selection

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 0.5 bar gauge
flow rate: 0.1 to 10 m³/h
temperature: -40°C to +85°C
slurry concentration: Up to 60% solids by weight
Media Compatibility
✓ Polymer flocculants ✓ Lime slurry ✓ Activated carbon slurry
Unsuitable: Hydrofluoric acid solutions
Sizing Data Required
  • Required storage volume (m³)
  • Maximum discharge rate (m³/h)
  • Material bulk density (kg/m³)

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Material degradation and corrosion
Cause: Chemical attack from stored reagents, leading to wall thinning, pitting, or stress corrosion cracking, especially at seams and welds.
Structural failure or deformation
Cause: Overloading, material fatigue from cyclic loading/unloading, or improper support leading to hopper distortion, seam separation, or collapse.
Maintenance Indicators
  • Visible material loss, discoloration, or weeping at seams, welds, or base, indicating corrosion or structural compromise.
  • Audible creaking, popping, or unusual noises during filling/emptying, suggesting structural stress or material fatigue.
Engineering Tips
  • Implement a regular non-destructive testing (NDT) program, such as ultrasonic thickness testing and visual inspections, to monitor wall integrity and detect early signs of degradation.
  • Ensure proper material selection and compatibility with stored reagents, and maintain controlled loading/unloading cycles to prevent overstress and fatigue accumulation.

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
ANSI/ASME BPE-2019 - Bioprocessing Equipment DIN 11866-2 - Stainless Steel Vessels for the Food Industry

Quoted from the published standard.

Manufacturing Precision
  • Hopper Wall Thickness: +/-0.1mm
  • Discharge Flange Flatness: 0.05mm
Quality Inspection
  • Helium Leak Test (ASTM E499/E499M)
  • Surface Roughness Verification (Ra ≤ 0.8µm)
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.

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Manufacturers of Reagent Storage Hopper

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Frequently Asked Questions

What is the capacity range of the Reagent Storage Hopper?

The hopper is available in capacities from 50 to 500 liters, with custom sizes available upon request. The specific capacity should be confirmed with the manufacturer for your application.

What materials are used in the hopper construction?

The hopper can be made from stainless steel 316L (ASTM A240) or food-grade polyethylene, with corrosion-resistant coatings available. The material choice depends on the reagent compatibility and process requirements.

What is the operating pressure and temperature range?

The operating pressure is 1.0 to 1.6 MPa. The operating temperature range is -40 to 85°C, with seals degrading above 85°C. Always verify these values with the manufacturer for your specific model.

How is discharge accuracy maintained?

The hopper provides a discharge accuracy of ±0.5%, ensuring consistent reagent dosing. This is achieved through controlled discharge mechanisms such as valves or gates, and may involve mechanical assistance like augers or vibrators. Regular maintenance of these components is essential to maintain accuracy.

Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Related equipment

Applied To / Applications

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

Reagent Injection System
View system integration details

Industrial Ecosystem & Supply Chain Structure

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.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 12 October 2026

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