Process Seal: Size Range DN15 to DN100

Q: What is the primary function of a process seal in level sensors?

To prevent fluid leakage and protect sensor electronics from media exposure while maintaining measurement integrity.

Q: How do I select the right material for a process seal?

Based on chemical compatibility, temperature range, pressure requirements, and industry regulations like FDA for food contact.

Q: What are common failure modes of process seals?

Compression set, chemical degradation, extrusion under pressure, and installation damage.

Component Specifications

Definition

A specialized sealing component designed for level sensors that creates a hermetic barrier between the sensor's internal electronics and the measured medium, preventing fluid ingress, leakage, and cross-contamination while maintaining measurement accuracy under varying pressures and temperatures.

Working Principle

Creates a static or dynamic barrier using elastomeric or metallic materials that compress against mating surfaces, forming a leak-tight seal through controlled deformation and surface adhesion, while allowing sensor signal transmission through the sealed interface.

Materials

FKM (Viton), EPDM, PTFE, silicone, or stainless steel AISI 316L; hardness 70-90 Shore A; temperature range -40°C to +200°C; pressure rating up to 40 bar.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Seal Type	Static/dynamic O-ring or gasket
Size Range	DN15 to DN100
Leakage Rate	<10^-6 mbar·l/s
Pressure Rating	0-40 bar
Temperature Range	-40°C to +200°C
Media Compatibility	Water, oils, chemicals, food products

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 3601-1, DIN 3771, ASME B16.20, FDA 21 CFR 177.2600

Parent Products

This component is used in the following industrial products

Level Sensor

A device that measures and monitors the liquid level within a reagent storage tank.

View Product Details

Engineering Analysis

Risks & Mitigation

Seal degradation from chemical exposure
Improper installation causing leaks
Thermal expansion mismatch
Material incompatibility with media

FMEA Triads

Trigger: Chemical attack on elastomer
Failure: Seal swelling/cracking leading to leakage
Mitigation: Use chemically resistant materials like FKM or PTFE

Trigger: Excessive compression
Failure: Permanent deformation and loss of sealing force
Mitigation: Follow manufacturer torque specifications and use compression limiters

Trigger: Temperature cycling
Failure: Thermal fatigue and seal hardening
Mitigation: Select materials with appropriate TR-10 and continuous use temperature ratings

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1mm on critical dimensions per ISO 3601-1

Test Method

Helium leak testing per ASTM E493, pressure decay testing, and immersion testing for chemical resistance

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 Process Seal

Manufacturer profiles associated with Process Seal.

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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 process seal in level sensors?