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
ParameterTypical rangeNotes & selection driver
Diameter5-100 mm
HardnessHRC 40-60 (metallic)
Thickness1-20 mm
Surface FinishRa 0.4-1.6 μm
Pressure RatingUp to 6000 psi
Temperature Range-40°C to 400°C
Flatness Tolerance±0.01 mm

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 17292, DIN 3356, ASME B16.34

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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Relief Valve

A safety device installed on a distribution manifold/block to prevent overpressure by automatically releasing excess fluid when pressure exceeds a preset limit.

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Poppet/Seal Assembly

A sealing and flow control assembly for rapid-activation valve banks, combining a poppet valve with integrated sealing elements.

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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

Typical Suppliers & Equivalents

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

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

Compare the published product scope and source details, then include your specifications and quantity in an enquiry.

Manufacturers of Poppet Disc

Manufacturer profiles associated with Poppet Disc.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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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.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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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