Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

API DN 25/CO TPE

API DN25/CO TPE is a high-performance thermoplastic elastomer sealing solution from API’s CO Series—designed for sanitary process applications requiring FDA-compliant, steam-sterilizable, and low-extraction performance. Its DN25 size ensures precise fit in 1-inch sanitary fittings. Combining chemical resistance, flexibility, and cleanability, it replaces traditional EPDM or silicone seals in biopharma and food-grade systems.
  • api dn 25 co tpe_500efbff
  • api dn 25 co tpe_500efbff

Features Of API DN 25/CO TPE

  1. Thermoplastic elastomer (TPE) formulation with excellent compression set resistance for long-term sealing performance.

  2. Halogen-free and RoHS-compliant, supporting sustainable manufacturing and regulatory compliance in global markets.

  3. Optimized processability for injection molding and extrusion, enabling high-volume production with low cycle times.

  4. Superior chemical resistance to oils, greases, and mild aqueous solutions commonly encountered in industrial environments.

  5. Consistent dimensional stability across a wide service temperature range of –40 °C to +100 °C.

Typical Applications Of API DN 25/CO TPE

  1. Sealing components for pneumatic and hydraulic connectors in industrial automation systems.

  2. O-rings and gaskets for instrumentation and control valves in oil & gas and chemical processing plants.

  3. Dynamic seals in rotating and reciprocating equipment requiring low friction and high resilience.

  4. Custom-molded interface parts for modular piping assemblies compliant with ISO 8531 and DIN EN 1515 standards.

  5. Replacement material for traditional EPDM or NBR in applications demanding enhanced flexibility and recyclability.

Specifications Of API DN 25/CO TPE

Chemical TypeThermoplastic Elastomer (TPE), styrenic block copolymer (SEBS)-based
Product FormPellets, free-flowing, uniform size distribution
AppearanceOff-white to light beige, non-dusty, surface-smooth pellets
Primary ApplicationsStatic and dynamic seals for DN 25 (1-inch) flanged and threaded connections
Key FeaturesLow compression set (<25% @ 70 °C, 22 hrs), high elasticity (>400% elongation)
BenefitsReduced maintenance frequency, extended service life, compatibility with standard TPE processing equipment
Regulatory ComplianceRoHS 2011/65/EU, REACH SVHC-free, FDA extractables tested (non-food contact grade)
Storage ConditionsStore in dry, cool conditions (<30 °C); protect from UV exposure and moisture


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