Industry-Verified Manufacturing Data (2026)

Release Valve

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

A safety component in a gas lift cylinder that controls pressure release.

Product Specifications

Technical details and manufacturing context for Release Valve

Definition
The release valve is a critical safety component within a gas lift cylinder system, designed to automatically or manually vent excess gas pressure to prevent over-pressurization and potential failure of the cylinder or connected equipment. It ensures operational safety and system integrity.
Working Principle
The valve operates by opening when the internal gas pressure exceeds a predetermined set point, allowing gas to escape until pressure normalizes. It may be spring-loaded, pilot-operated, or manually actuated, and then reseals automatically or manually once safe pressure is restored.
Common Materials
Brass, Stainless Steel
Technical Parameters
  • Pressure rating or set point for valve activation. (MPa) Standard Spec
Components / BOM
  • Valve Body
    Houses internal components and provides connection points.
    Material: Brass or Stainless Steel
  • Spring
    Applies force to keep the valve closed until set pressure is exceeded.
    Material: Spring Steel
  • Seal/Diaphragm
    Creates a pressure-tight seal when the valve is closed.
    Material: Nitrile Rubber or PTFE
Engineering Reasoning
0.5-15.0 MPa
18.7 MPa (yield strength of 316L stainless steel at 150°C)
Design Rationale: Plastic deformation due to hoop stress exceeding material yield strength (σ_θ = P·r/t > σ_y)
Risk Mitigation (FMEA)
Trigger Corrosive H2S gas concentration exceeding 50 ppm
Mode: Stress corrosion cracking at valve seat interface
Strategy: Apply Inconel 625 cladding on sealing surfaces
Trigger Particulate contamination > 10 μm in gas stream
Mode: Abrasive wear of poppet sealing surface
Strategy: Install 5 μm absolute filtration upstream with differential pressure monitoring

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Release Valve.

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 3000 psi (207 bar)
flow rate: Up to 50 SCFM (standard cubic feet per minute)
temperature: -40°C to 150°C
slurry concentration: Not recommended for slurries >5% solids by volume
Media Compatibility
✓ Natural gas ✓ Nitrogen ✓ Dry air
Unsuitable: Corrosive gases (e.g., hydrogen sulfide, chlorine) or abrasive slurries
Sizing Data Required
  • Maximum operating pressure (psi/bar)
  • Required flow capacity (SCFM)
  • Gas composition and purity

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Sticking or binding
Cause: Corrosion buildup on valve stem or seat, improper lubrication, or foreign material accumulation preventing proper movement
Leakage past the seat
Cause: Wear or erosion of sealing surfaces, improper seating due to misalignment, or thermal cycling causing material fatigue
Maintenance Indicators
  • Audible hissing or whistling indicating flow when valve should be closed
  • Visible fluid weeping around valve body or stem during operation
Engineering Tips
  • Implement regular preventive maintenance with proper lubrication and cleaning to prevent corrosion and buildup
  • Install strainers upstream and ensure proper system filtration to prevent particulate contamination that accelerates wear

Compliance & Manufacturing Standards

Reference Standards
ISO 4126-1: Safety devices for protection against excessive pressure - Part 1: Safety valves ASME BPVC Section VIII: Rules for Construction of Pressure Vessels (ANSI standard) DIN EN ISO 4126: Safety valves - General requirements
Manufacturing Precision
  • Seat flatness: 0.025 mm maximum deviation
  • Spring compression force: +/- 2% of specified value
Quality Inspection
  • Hydrostatic pressure test at 1.5x maximum working pressure
  • Leakage test with helium or nitrogen at set pressure

Factories Producing Release Valve

Verified manufacturers with capability to produce this product in China

✓ 98% Supplier Capability Match Found

T Technical Director from Singapore Feb 19, 2026
★★★★★
"Great transparency on the Release Valve components. Essential for our Machinery and Equipment Manufacturing supply chain."
Technical Specifications Verified
P Project Engineer from Germany Feb 16, 2026
★★★★☆
"The Release Valve we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Brazil Feb 13, 2026
★★★★★
"Found 30+ suppliers for Release Valve 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.”

5 sourcing managers are analyzing this specification now. Last inquiry for Release Valve from Poland (1h ago).

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Frequently Asked Questions

What materials are available for the release valve?

Our release valves are manufactured using durable brass or corrosion-resistant stainless steel, suitable for various industrial environments.

How does the release valve ensure safety in gas lift cylinders?

The valve automatically releases excess pressure through its spring and diaphragm mechanism, preventing over-pressurization and potential equipment failure.

What are the main components of the release valve?

The valve consists of three key components: a valve body (brass/stainless steel), a spring for pressure regulation, and a seal/diaphragm to prevent leaks.

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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