Industry-Verified Manufacturing Data (2026)

Drain Valve

Based on aggregated insights from multiple verified 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
    Main structural housing that contains fluid passage
    Material: HDPE
  • Seal/Gasket
    Prevents leakage when valve is closed
    Material: EPDM Rubber
  • Actuator Handle
    Manual control mechanism for opening/closing
    Material: Stainless Steel
Engineering Reasoning
0-6 bar differential pressure, -20°C to 60°C fluid temperature
8 bar differential pressure causes diaphragm rupture, 80°C causes HDPE seal degradation
Design Rationale: Diaphragm material (EPDM rubber) tensile failure at 8 bar ΔP, HDPE seal thermal expansion mismatch at 80°C
Risk Mitigation (FMEA)
Trigger Particulate contamination exceeding 50 μm in fluid stream
Mode: Valve seat erosion leading to 0.5 L/min leakage at 3 bar
Strategy: Install 25 μm upstream filter with differential pressure monitoring
Trigger Cyclic thermal stress from 40°C temperature fluctuations
Mode: HDPE-to-stainless steel interface cracking after 10,000 cycles
Strategy: Integrate thermal expansion compensator with 316L stainless bellows

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
View system integration details

Industrial Ecosystem & Supply Chain DNA

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

Verified manufacturers with capability to produce this product in China

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✓ 95% Supplier Capability Match Found

P Procurement Specialist from Brazil Jan 03, 2026
★★★★★
"The Drain Valve we sourced perfectly fits our Rubber and Plastic Product Manufacturing production line requirements."
Technical Specifications Verified
T Technical Director from Canada Dec 31, 2025
★★★★★
"Found 27+ suppliers for Drain Valve on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
P Project Engineer from United States Dec 28, 2025
★★★★★
"The technical documentation for this Drain Valve is very thorough, especially regarding technical reliability."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

8 sourcing managers are analyzing this specification now. Last inquiry for Drain Valve from Turkey (18m ago).

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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 Specifications verified by CNFX Industrial Index (v2.6.03) for Rubber and Plastic Product Manufacturing sector.

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