DuPont Kalrez Spectrum 7075 perfluoroelastomer parts are the material of choice for mechanical seals, valves, flanges and other demandingchemical and hydrocarbon processing applications. Kalrez Spectrum 7075 is positioned in the Kalrez® Spectrum™ family of products which are designed for the chemical processing industry. Compound 7075 offers enhanced physical performance properties including very low compression set
Typical Physical Properties
|Hardness2 , Shore A 75||75|
|100% Modulus3 , MPa (psi) 11.23 (1629)||11.23 (1629)|
|Tensile at Break3 , MPa (psi) 17.91 (2598)||17.91 (2598)|
|Elongation at Break3 , % 160||160|
|Compression Set4 , % 70 hr at 204 °C (400 °F) 10||10|
|Compression Set5 , % 70 hr at 204 °C (400 °F) 13||13|
|Max. Service Temp.6 , °C (°F) 327 (620)||327 (620)|
|Lowest Service Temp.6 , °C (°F) -18 (-0.4)||-18 (-0.4)|
Thermal, Chemical, and Mechanical Performance
DuPont Kalrez Spectrum 7075 is designed for general-purpose use asO-rings or custom sealing components in the chemical and hydrocarbon processing industries. It is a carbon black-filled compound with mechanical properties designed for improved sealing performance in temperature cycling applications. 7075 has improved thermal resistance that extends maximum service temperature to 327 °C (620 °F).
It is not suggested for use in severe aqueous and amine applications where Kalrez® Spectrum™ 6375 remains the preferred compound. As always, we recommend the specific chemicals, service temperature and pressure be reviewed for the optimal compound selection in each application. Kalrez Spectrum 7075 offers very low compression set as measured by ASTM D395 to predict heat resistance.
DuPont compression set testing extends the standard ASTM 70-hour protocol to include 336 and 672-hour compression set testing, which better predicts long-term O-ring performance. Lower compression set results in improved sealing and longer service life.
DuPont Kalrez Spectrum 7075, with its low compression set, is a great choice for today’s smaller and lighter mechanical seals, which are expected to perform as efficiently as larger mechanical seals. The smaller mechanical seal designs, with reduced spring force retention, put additional demands on elastomeric O-rings with reduced cross sections. The smaller cross section O-rings are more prone to compression set which can reduce their functional effectiveness, thereby reducing the operability of the mechanical seal.
Quick connector couplings also benefit from the outstanding compression set of Kalrez® Spectrum™ 7075 and its enhanced temperature cycling capabilities. Combined with low swell in a wide range of chemicals, this compound ensures reliable performance of modern fluids handling systems.
Warranty for Kalrez products
• Only applies to Dupont products distributed genuine in Vietnam.
• All Kalrez products are warranted if the machine fails due to manufacturer fault.
• For warranty and product maintenance, please contact Achilles, customer service phone number: 098 469 4884 (Ms. Duc).
• Achilles is the genuine supplier of products related to Kalrez DuPont.
• For retail/whole sale pricing, bulk ordering and product information advice please contact 098 469 4884 (Ms. Duc) via email@example.com or the website https://achilles.com.vn