INDUSTRY COMPONENT

Poppet Disc

A precision disc component in poppet valves that seals against the valve seat to control fluid flow.

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Component Specifications

Definition
The poppet disc is a critical sealing component in poppet valves, typically a flat or slightly curved disc that mates with a corresponding valve seat. It moves axially to open or close the flow path, creating a tight seal when pressed against the seat. This component is essential for precise flow control, pressure regulation, and leak prevention in various industrial fluid systems.
Working Principle
The poppet disc operates on the axial movement principle. When the valve stem lifts the disc away from the seat, fluid flows through the created gap. When the stem lowers the disc against the seat, the mating surfaces create a seal that stops flow. The sealing efficiency depends on surface finish, material compatibility, and applied force.
Materials
Stainless steel (304, 316), brass, aluminum alloys, engineered plastics (PTFE, PEEK), or ceramic composites. Material selection depends on fluid compatibility, temperature range (-40°C to 400°C), pressure requirements (up to 6000 psi), and corrosion resistance needs.
Technical Parameters
  • Diameter 5-100 mm
  • Hardness HRC 40-60 (metallic)
  • Thickness 1-20 mm
  • Surface Finish Ra 0.4-1.6 μm
  • Pressure Rating Up to 6000 psi
  • Temperature Range -40°C to 400°C
  • Flatness Tolerance ±0.01 mm
Standards
ISO 17292, DIN 3356, ASME B16.34

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Poppet Disc.

poppet disc valve disc poppet valve component fluid control seal industrial valve parts precision sealing disc Poppet Disc in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Poppet Valve

A type of valve that uses a disc or cone-shaped element (poppet) to control fluid flow by lifting perpendicularly from its seat.

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Poppet/Seal Assembly

A critical sealing and flow control assembly within a rapid-activation valve bank, combining poppet valve functionality with integrated sealing elements.

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Poppet/Control Valve

A valve component that regulates airflow by lifting a poppet disc from its seat to control pressure or flow rate.

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Engineering Analysis

Risks & Mitigation
  • Wear and tear from repeated cycling
  • Corrosion from aggressive fluids
  • Thermal expansion mismatch
  • Improper installation causing leaks
  • Material fatigue under high-cycle operations
FMEA Triads
Trigger: Abrasive particles in fluid
Failure: Surface scoring and reduced sealing efficiency
Mitigation: Install filtration systems, use hardened materials, implement regular inspection schedules
Trigger: Excessive operating temperature
Failure: Material deformation or thermal stress cracking
Mitigation: Select temperature-resistant materials, implement cooling systems, monitor temperature limits
Trigger: Improper alignment during assembly
Failure: Uneven wear and premature failure
Mitigation: Use precision alignment tools, follow manufacturer installation procedures, conduct alignment checks

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.01 mm flatness, ±0.02 mm diameter, surface finish Ra 0.4-1.6 μm
Test Method
Helium leak test (ASTM E493), pressure decay test, surface profilometry, material hardness testing

Buyer Feedback

★★★★☆ 4.6 / 5.0 (11 reviews)

"The Poppet Disc we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

"Found 33+ suppliers for Poppet Disc on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Poppet Disc is very thorough, especially regarding technical reliability."

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Frequently Asked Questions

What is the primary function of a poppet disc?

The primary function is to create a reliable seal against the valve seat to control or stop fluid flow in poppet valves.

How do I select the right material for a poppet disc?

Consider fluid compatibility, operating temperature, pressure requirements, corrosion resistance, and wear characteristics. Common choices include stainless steel for corrosive environments and PTFE for chemical resistance.

What maintenance is required for poppet discs?

Regular inspection for wear, surface damage, or deformation; cleaning to prevent contamination; and replacement when sealing performance degrades beyond acceptable limits.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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