Structured Manufacturing Data (2026)

Drain Valve

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Drain Valve used in the Rubber and Plastic Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Drain Valve is characterized by the integration of Valve Body and Seal/Gasket. In industrial production environments, manufacturers listed on CNFX commonly emphasize High-Density Polyethylene (HDPE) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A valve component designed for controlled drainage of liquids from HDPE storage containers.

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Product Specifications

Technical details and manufacturing context for Drain Valve

Definition
A specialized valve integrated into High-Density Polyethylene (HDPE) storage containers to enable precise opening and closing for draining stored liquids, typically featuring chemical resistance and durability suitable for industrial applications.
Working Principle
Operates through manual or automated actuation (e.g., lever, knob, or pneumatic control) to open or close a passage, allowing liquid to flow out of the container when open and creating a seal to prevent leakage when closed.
Common Materials
High-Density Polyethylene (HDPE), Stainless Steel
Technical Parameters
  • Connection size (e.g., 1/2", 3/4", 1") for piping compatibility (mm) Customizable
Components / BOM
  • Valve Body Part
    Main structural housing that contains fluid passage
    Material: HDPE
  • Seal/Gasket Part
    Prevents leakage when valve is closed
    Material: EPDM Rubber
  • Actuator Handle Part
    Manual control mechanism for opening/closing
    Material: Stainless Steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Drain Valve.

HDPE storage container drain valve plastic manufacturing drainage valve stainless steel HDPE valve controlled liquid drainage valve industrial plastic container valve

Applied To / Applications

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

Pre-Filtration Unit
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Liquid Storage Tank
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Stainless Steel Washing Tank
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Liquid Reservoir
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Oil Separator
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Cold Trap/Condenser
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Air Filter/Dryer
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Water Supply & Drain System
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Air Dryer
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Condensate Collection Vessel
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Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 10 bar (150 psi)
flow rate: 0.5 to 50 L/min
temperature: -40°C to 80°C
slurry concentration: Up to 30% solids by weight
Media Compatibility
✓ Water and aqueous solutions ✓ Chemical slurries (pH 3-10) ✓ Food-grade liquids
Unsuitable: Highly corrosive acids (e.g., concentrated sulfuric acid)
Sizing Data Required
  • Container outlet diameter (mm)
  • Required drainage time (minutes)
  • Liquid viscosity (cP)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion-induced leakage
Cause: Chemical attack from process fluids or environmental exposure, leading to material degradation and loss of sealing integrity.
Mechanical binding or seizure
Cause: Accumulation of debris, scale, or particulate matter in the valve mechanism, often exacerbated by infrequent operation or inadequate flushing.
Maintenance Indicators
  • Visible weeping or dripping around the valve body or stem, indicating seal failure or corrosion.
  • Difficulty in manual operation (e.g., stiff or stuck handle), suggesting internal obstruction or mechanical wear.
Engineering Tips
  • Implement routine flushing or blowdown procedures to prevent sediment buildup and maintain clear passageways.
  • Select valve materials compatible with the service environment (e.g., corrosion-resistant alloys) and apply protective coatings if exposed to harsh conditions.

Compliance & Manufacturing Standards

Reference Standards
ISO 5208: Industrial valves - Pressure testing of valves ANSI/ASME B16.34: Valves - Flanged, Threaded, and Welding End DIN EN 12516-1: Industrial valves - Shell design strength - Part 1: Tabulation method for steel valve shells
Manufacturing Precision
  • Bore diameter: +/-0.05mm
  • Seat flatness: 0.08mm across sealing surface
Quality Inspection
  • Hydrostatic pressure test for leak tightness
  • Dimensional verification against engineering drawings

Factories Producing Drain Valve

Manufacturer profiles with relevant production capability in China

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

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are used in this drain valve?

This drain valve is constructed from High-Density Polyethylene (HDPE) for the valve body and stainless steel for durable components, ensuring corrosion resistance and longevity in industrial environments.

How does this valve ensure controlled drainage?

The valve features a precise actuator handle that allows operators to regulate flow rates, preventing sudden releases and enabling safe, measured drainage from HDPE storage containers.

Is this drain valve compatible with standard HDPE containers?

Yes, this valve is specifically designed for HDPE storage containers commonly used in rubber and plastic product manufacturing, with standard fittings for easy installation and reliable sealing.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Rubber and Plastic Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

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