Structured Manufacturing Data (2026)

Vacuum Valve

Based on aggregated insights from structured 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 Part
    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

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
View system integration details
Pickup Head
View system integration details

Industrial Ecosystem & Supply Chain Structure

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

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 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 basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Machinery and Equipment 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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