Industry-Verified Manufacturing Data (2026)

Vacuum Valve

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Vacuum Valve 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 Vacuum Valve is characterized by the integration of Valve Body and Seal. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A valve designed to control the flow of gases or fluids within a vacuum system, maintaining pressure isolation between different sections.

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Product Specifications

Technical details and manufacturing context for Vacuum Valve

Definition
A vacuum valve is a critical component within a vacuum system that regulates, isolates, or directs the flow of gases or fluids under low-pressure conditions. It ensures system integrity by sealing vacuum chambers, connecting or isolating different vacuum stages, and allowing controlled introduction or removal of substances without compromising the vacuum environment.
Working Principle
Operates by creating a physical barrier (seal) between vacuum and atmospheric pressure or between different vacuum levels. Common mechanisms include gate, butterfly, or bellows-sealed designs that open or close via manual, pneumatic, or electric actuators to control gas flow while maintaining vacuum integrity.
Common Materials
Stainless Steel
Technical Parameters
  • Nominal port size (e.g., DN 40, DN 100) indicating the valve's connection diameter for system integration. (mm) Customizable
Components / BOM
  • Valve Body
    Main structural housing that contains internal mechanisms and provides connection ports to the vacuum system.
    Material: Stainless Steel
  • Seal
    Creates an airtight closure between valve components to prevent gas leakage, often made from elastomers or metal.
    Material: Viton or Metal
  • Actuator
    Mechanism (manual handle, pneumatic cylinder, or electric motor) that opens or closes the valve.
    Material: Aluminum or Steel
Engineering Reasoning
1e-6 to 1013 mbar (10^-6 to 1013 hPa)
Leak rate exceeding 1e-9 mbar·L/s (helium) at 1 mbar differential pressure
Design Rationale: Seal material creep deformation exceeding 0.1 mm at 150°C, causing molecular flow leakage through elastomer compression set
Risk Mitigation (FMEA)
Trigger Particulate contamination exceeding 5 μm diameter on sealing surface
Mode: Vacuum leak rate increase to 1e-5 mbar·L/s
Strategy: Install 0.1 μm absolute filter upstream with differential pressure monitoring at 50 mbar threshold
Trigger Thermal cycling between -40°C and 200°C at 10 cycles/hour
Mode: Bellows fatigue fracture at 10^5 cycles (Miner's rule cumulative damage D=1.0)
Strategy: Replace metallic bellows with welded diaphragm design rated for 10^7 cycles at ΔT=240°C

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Vacuum Valve.

stainless steel vacuum valve for industrial equipment vacuum system pressure isolation valve machinery manufacturing vacuum control valve industrial vacuum valve with actuator and seal high-performance vacuum valve for gas flow control

Applied To / Applications

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

Vacuum System
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Pickup Head
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Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 10^-6 mbar to 1 bar absolute
flow rate: Up to 1000 sccm (standard cubic centimeters per minute)
temperature: -40°C to 200°C
slurry concentration: Not applicable - designed for clean gas/vapor applications
Media Compatibility
✓ High-purity gases (argon, nitrogen) ✓ Chemical vapor deposition (CVD) process gases ✓ Semiconductor etch byproducts
Unsuitable: Abrasive particulate-laden flows or corrosive liquid slurries
Sizing Data Required
  • Required conductance (C) in L/s
  • System ultimate pressure (P_ult) in mbar
  • Maximum allowable leak rate (Q_leak) in mbar·L/s

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Seal Degradation
Cause: Chemical attack from process media, thermal cycling, or improper seal material selection leading to leaks and loss of vacuum integrity.
Actuator Failure
Cause: Mechanical wear, contamination, or electrical/control system faults preventing proper valve opening/closing, often due to inadequate maintenance or harsh operating environments.
Maintenance Indicators
  • Audible hissing or whistling during operation indicating vacuum leaks
  • Visible external corrosion, seal extrusion, or erratic valve movement
Engineering Tips
  • Implement regular seal integrity testing and preventive replacement schedules based on manufacturer specifications and operating history
  • Ensure proper filtration of actuation media (pneumatic/hydraulic) and maintain clean operating environments to prevent contamination-induced failures

Compliance & Manufacturing Standards

Reference Standards
ISO 21358:2020 Vacuum technology - Vacuum valves - Specifications and testing ANSI/FCI 70-2 Control Valve Seat Leakage DIN 28400 Vacuum technology - Dimensions of vacuum flanges
Manufacturing Precision
  • Seat Leakage Rate: ≤1×10⁻⁹ Pa·m³/s
  • Surface Roughness (Ra): ≤0.8 μm
Quality Inspection
  • Helium Leak Detection Test
  • Material Composition Verification via XRF Analysis

Factories Producing Vacuum Valve

Verified manufacturers with capability to produce this product in China

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✓ 92% Supplier Capability Match Found

P Project Engineer from United States Feb 26, 2026
★★★★★
"The Vacuum Valve we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."
Technical Specifications Verified
S Sourcing Manager from United Arab Emirates Feb 23, 2026
★★★★★
"Found 53+ suppliers for Vacuum Valve on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
P Procurement Specialist from Australia Feb 20, 2026
★★★★★
"The technical documentation for this Vacuum 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.”

13 sourcing managers are analyzing this specification now. Last inquiry for Vacuum Valve from UAE (1h ago).

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Frequently Asked Questions

What materials are used in this vacuum valve?

This vacuum valve is constructed from high-grade stainless steel, ensuring durability, corrosion resistance, and reliability in demanding machinery and equipment manufacturing environments.

How does this valve maintain pressure isolation in vacuum systems?

The valve features precision-engineered seals and a robust valve body design that effectively controls gas or fluid flow, creating reliable pressure barriers between different sections of vacuum systems.

What components are included in the vacuum valve BOM?

The bill of materials includes three key components: an actuator for valve operation, specialized seals for pressure isolation, and a stainless steel valve body that houses the internal mechanisms.

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 Machinery and Equipment Manufacturing sector.

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