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

API DN 40/CL1 TPE

API DN40/CL1 TPE is a high-performance thermoplastic elastomer sealing solution from API’s SealingPro series—model DN40/CL1—featuring excellent chemical resistance, low-temperature flexibility, and NSF/ISO 10993 compliance for pharmaceutical and food-grade applications. Its robust compression set resistance and smooth surface finish ensure reliable static sealing in sanitary process systems.
  • api dn 40 cl1 tpe_d626e087
  • api dn 40 cl1 tpe_d626e087

Features Of API DN 40/CL1 TPE

  1. High-performance thermoplastic elastomer (TPE) formulated for API-compliant sealing and fluid handling applications.

  2. Excellent resistance to hydrocarbons, mineral oils, and common industrial solvents under moderate temperature conditions.

  3. Consistent dimensional stability and low compression set for reliable long-term gasket and seal performance.

  4. Halogen-free and RoHS-compliant formulation supporting environmentally responsible manufacturing practices.

  5. Optimized for DN 40 (1½ inch) pipe connections with Class 1 pressure rating per API RP 14E guidelines.

Typical Applications Of API DN 40/CL1 TPE

  1. Offshore and onshore oil & gas pipeline flange gaskets for low-pressure process lines.

  2. Sealing elements in API-compliant sampling valves and instrument isolation manifolds.

  3. Gland packing and static seals in subsea control system housings.

  4. Non-metallic components for chemical injection skids operating under API Class 1 service conditions.

  5. Replacement material for legacy elastomers in aging API-standardized metering and dosing equipment.

Specifications Of API DN 40/CL1 TPE

Chemical TypeThermoplastic Elastomer (TPE) – Styrenic Block Copolymer (SBC) base
Product FormCompression-molded gasket sheet or precision die-cut ring
AppearanceUniform black, smooth surface, free of voids or extrusion defects
Primary ApplicationsStatic sealing for API DN 40 flanged connections at Class 1 pressure rating
Operating Temperature Range–20 °C to +80 °C (short-term peak up to +100 °C)
Hardness (Shore A)65 ± 3
Density0.98–1.02 g/cm³
ComplianceAPI RP 14E, ASTM D2000 (Standard Classification System for Elastomers), RoHS Directive 2011/65/EU


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