Seal Ring: Temperature Range -40°C to +150°C

Component Specifications

Definition

A specialized sealing ring designed to maintain pressure integrity in starch slurry control valves, preventing leakage of viscous food-grade slurries while withstanding pressure fluctuations and abrasive particulate content typical in starch processing applications.

Working Principle

Creates a static or dynamic seal between valve components through elastic deformation under compression, preventing slurry leakage while allowing controlled pressure regulation through the valve assembly.

Materials

Food-grade EPDM rubber (Ethylene Propylene Diene Monomer) with FDA 21 CFR 177.2600 compliance, Shore A hardness 70±5, temperature range -40°C to +150°C, resistant to starch enzymes and cleaning chemicals.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Cross Section	3.53 mm
Inner Diameter	25.4 mm
Surface Finish	Ra ≤ 0.8 μm
Compression Set	≤15% (22h at 100°C)
Temperature Range	-40°C to +150°C
Operating Pressure	0-10 bar

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, FDA 21 CFR 177.2600

Parent Products

This component is used in the following industrial products

Starch Slurry Pressure Control Valve

The Starch Slurry Pressure Control Valve is a flow control component used in starch manufacturing plants to maintain precise pressure levels during slurry transport between processing stages.

View Product Details

Female Half

The female component of a hydraulic quick coupler that receives the male half to establish a fluid connection.

View Product Details

Engineering Analysis

Risks & Mitigation

Chemical degradation from cleaning agents
Abrasive wear from starch particles
Compression set leading to leakage
Improper installation causing extrusion

FMEA Triads

Trigger: Chemical attack from chlorine-based cleaners
Failure: Material swelling and loss of sealing force
Mitigation: Use compatible sanitizers; specify chemical-resistant EPDM grades

Trigger: Particulate abrasion in slurry
Failure: Surface erosion and leakage paths
Mitigation: Install upstream filtration; use abrasion-resistant compound

Trigger: Excessive compression during installation
Failure: Permanent deformation and reduced service life
Mitigation: Follow torque specifications; use installation tools

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.15 mm on cross-section, ±0.25 mm on diameter per ISO 3601-1 Class A

Test Method

Pressure decay test per ISO 15848, extraction testing per FDA guidelines, compression set per ASTM D395

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.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Seal Ring

Manufacturer profiles associated with Seal Ring.

Sourcing Seal Ring from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Vortex Finder

A precision component in starch hydrocyclones that controls centrifugal separation efficiency by directing vortex flow patterns.

Gasket Set

A gasket set for food-grade sanitary diaphragm valve cores, ensuring leak-proof sealing in hygienic fluid handling systems.

Sanitary Process Connection

Sanitary process connection is a hygienic fitting component designed for sterile fluid transfer in sanitary flow meters, ensuring contamination-free connections in food, beverage, and pharmaceutical processing.

Dispensing Nozzle

Fluid dispensing nozzles meter and direct liquids into containers through a controlled valve and shaped outlet designed for repeatable filling and shutoff.

Frequently Asked Questions

Why is EPDM the preferred material for starch slurry seal rings?

EPDM offers excellent resistance to starch enzymes, hot water, and cleaning chemicals while maintaining flexibility across temperature variations common in food processing.

How often should starch slurry valve seal rings be replaced?

Typically every 6-12 months depending on operating cycles, but inspect quarterly for wear, compression set, or surface degradation.

Can these seal rings handle abrasive starch particles?

Yes, the specified EPDM formulation includes additives for abrasion resistance, but proper filtration upstream is recommended to extend service life.

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.

Seal Ring