Industry-Verified Manufacturing Data (2026)

Drain Valve (optional)

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Drain Valve (optional) used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Drain Valve (optional) is characterized by the integration of Valve Body and Drain Port. In industrial production environments, manufacturers listed on CNFX commonly emphasize Brass construction to support stable, high-cycle operation across diverse manufacturing scenarios.

An optional valve installed on an air distribution manifold to drain accumulated condensate or liquids from the system.

Product Specifications

Technical details and manufacturing context for Drain Valve (optional)

Definition
A drain valve is an optional component of an air distribution manifold designed to facilitate the removal of condensate, moisture, or other liquids that may accumulate within the manifold or connected pneumatic lines. It ensures system efficiency and prevents corrosion or contamination by allowing periodic or manual drainage.
Working Principle
The valve operates by opening a passageway from the manifold's low point to the exterior. When opened manually or automatically, pressure differential or gravity allows accumulated liquid to drain out, after which the valve is closed to restore system integrity and pressure.
Common Materials
Brass, Stainless Steel, Plastic (e.g., Nylon)
Technical Parameters
  • Connection thread size (e.g., 1/4" NPT, G1/8) (mm) Standard Spec
Components / BOM
  • Valve Body
    Main housing that connects to the manifold and contains internal mechanisms
    Material: Brass or Stainless Steel
  • Drain Port
    Outlet for expelled liquids, often with a threaded connection for a hose
    Material: Same as body
  • Seal/O-ring
    Ensures leak-proof closure when valve is shut
    Material: NBR, FKM, or EPDM
Engineering Reasoning
0-16 bar (232 psi)
18 bar (261 psi) burst pressure for brass body, 22 bar (319 psi) for stainless steel
Design Rationale: Yield strength exceedance of valve body material (brass: 125 MPa, stainless steel 316: 205 MPa) causing permanent deformation and seal failure
Risk Mitigation (FMEA)
Trigger Electrochemical corrosion from acidic condensate (pH < 4.5)
Mode: Valve seat pitting and leakage
Strategy: 316L stainless steel construction with PTFE seals
Trigger Water hammer pressure spike exceeding 1.5x system pressure
Mode: Diaphragm rupture at 25 bar (363 psi)
Strategy: Integral pressure relief orifice (1.5 mm diameter) with surge arrestor upstream

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Drain Valve (optional).

Applied To / Applications

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

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar (150 psi)
flow rate: 0.5 to 5 L/min
temperature: -20°C to 120°C
slurry concentration: Up to 5% solids by weight
Media Compatibility
✓ Compressed air systems ✓ Water-based coolants ✓ Hydraulic oils
Unsuitable: Highly corrosive acids or strong chemical solvents
Sizing Data Required
  • System operating pressure
  • Condensate accumulation rate
  • Required drain frequency/interval

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion
Cause: Exposure to corrosive fluids, incompatible materials, or environmental conditions leading to material degradation and leakage.
Mechanical wear or blockage
Cause: Abrasive particles in the fluid, improper operation (e.g., over-tightening), or buildup of debris causing valve sticking or failure to open/close.
Maintenance Indicators
  • Visible leakage or weeping around the valve body or stem
  • Difficulty in operation (e.g., excessive force required to open/close, sticking, or grinding noises)
Engineering Tips
  • Select valve materials compatible with the fluid and environment, and implement regular cleaning to prevent debris buildup.
  • Follow proper operating procedures (e.g., avoid over-tightening) and conduct periodic inspections for early signs of wear or corrosion.

Compliance & Manufacturing Standards

Reference Standards
ISO 5208:2015 (Industrial valves - Pressure testing of valves) ANSI/ASME B16.34:2020 (Valves - Flanged, Threaded, and Welding End) DIN EN 12266-1:2012 (Industrial valves - Testing of metallic valves)
Manufacturing Precision
  • Thread pitch: +/-0.05mm per thread
  • Seat flatness: 0.08mm maximum deviation
Quality Inspection
  • Hydrostatic pressure test (leakage verification)
  • Dimensional verification (thread gauge and micrometer inspection)

Factories Producing Drain Valve (optional)

Verified manufacturers with capability to produce this product in China

✓ 92% Supplier Capability Match Found

P Procurement Specialist from United States Jan 23, 2026
★★★★★
"Great transparency on the Drain Valve (optional) components. Essential for our Machinery and Equipment Manufacturing supply chain."
Technical Specifications Verified
T Technical Director from United Arab Emirates Jan 20, 2026
★★★★★
"The Drain Valve (optional) we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."
Technical Specifications Verified
P Project Engineer from Australia Jan 17, 2026
★★★★★
"Found 37+ suppliers for Drain Valve (optional) on CNFX, but this spec remains the most cost-effective."
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.”

17 sourcing managers are analyzing this specification now. Last inquiry for Drain Valve (optional) from Turkey (1h ago).

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Frequently Asked Questions

What is the purpose of an optional drain valve in machinery?

An optional drain valve is installed on air distribution manifolds to remove accumulated condensate or liquids, preventing corrosion and maintaining optimal system performance in machinery and equipment manufacturing.

Which materials are available for these drain valves?

These drain valves are typically made from brass for general use, stainless steel for corrosive environments, or plastic (like Nylon) for lightweight, cost-effective applications in industrial settings.

How does the drain valve work in an air distribution system?

The valve, consisting of a body, drain port, and seal/O-ring, allows manual or automatic drainage of liquids that accumulate in the manifold, ensuring dry, clean air flow and preventing damage to downstream equipment.

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.

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