The Burkert 20129304 Type SV02 is a passivation diaphragm (size 80) constructed from EPDM (Ethylene-propylene-diene rubber). Designed for process applications, it supports a medium temperature range of -10 °C to 143 °C and features a threaded connection. This diaphragm is highly certified, meeting FDA, USP Class VI, and EC 1935/2004 standards for food and pharmaceutical compliance.

Technical Specifications

Feature	Value
Type	SV02
Function	Passivation diaphragm
Diaphragm Size	80
Material	EPDM (Ethylene-propylene-diene rubber)
Temperature Medium	-10 °C to 143 °C
Approvals	Material-approval-foods, Material-approval-pharma-USP Class VI
Certifications	Food compliant for China, Food (EC) 1935/2004, FDA compliant, Pharma USP Class VI-compliant

Storage of Elastomer Parts

Elastomer parts can lose their physical and chemical properties as storage time progresses due to influencing factors such as light, heat, ozone, humidity, deformation, oxygen, oils, and solvents. International standards such as DIN 7716 or ISO 2230 Basic provide instructions for correct storage. Correct storage is an important factor in the operating life of elastomers, especially for highly stressed components like diaphragms.

Optimal Storage Conditions

• Temperature: Optimal storage temperature is between +5 °C and +25 °C. Do not store next to a heating element.
• Humidity: Relative air humidity should be less than 65% with condensation avoided at all times.
• Lighting: Store away from all direct sunlight and artificial light with high UV to prevent accelerated aging.
• Environment: Store in an airtight container to protect from circulating air and ozone. Ozone-generating devices (e.g., electric motors) should not be operated in storage areas.
• Condition: Store in a relaxed and non-deforming condition.
• Chemical Avoidance: Avoid contact with solvents, oils, fats, and other chemicals.
• Material Isolation: Avoid contact with rubber products of varying composition/colors, and parts made of copper, manganese, or their alloys.

Expected Life Cycle for EPDM Diaphragms

Based on optimum storage conditions, the following is the expected life cycle for EPDM diaphragms:

Raw Material	Storage Period (max.)	Operating Time (max.)
EPDM	7 years	3 years