BURKERT 20093069 (Type SV02) is a replacement diaphragm designed for process and control valves. This size 15 diaphragm features a PTFE contact surface with an EPDM backing membrane and utilizes a bayonet connection. It is engineered to handle medium temperatures ranging from -10 °C to 130 °C. The diaphragm complies with stringent industry standards, including Food (EC) 1935/2004, FDA, and Pharma USP Class VI requirements.

Technical Specifications

Feature	Description
Type	SV02
Diaphragm Size	15
Material	PTFE with EPDM backing membrane
Connection	Bayonet
Temperature Range	-10 °C to 130 °C
Approvals	Food (EC) 1935/2004, FDA, Pharma USP Class VI

Storage of Elastomer Parts

Elastomer parts can lose their physical and chemical properties over time due to factors such as light, heat, ozone, humidity, deformation, oxygen, oils, and solvents. Correct storage is critical for maintaining the operating life of highly stressed components like diaphragms.

Storage Guidelines

• 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%, avoiding condensation at all times.
• Light: Store away from direct sunlight and artificial light with high UV content to prevent accelerated aging.
• Environment: Store in an airtight container to protect from circulating air and ozone. Do not operate ozone-generating devices (e.g., electric motors) in the storage area.
• Condition: Store in a relaxed, non-deforming condition.
• Chemical Avoidance: Avoid all contact with solvents, oils, fats, and other chemicals.
• Material Separation: Avoid contact with rubber products of varying composition/colors, and parts made of copper, manganese, or their alloys.

Expected Life Cycle for Diaphragms

Based on optimum storage conditions, the following life cycles apply to the specific materials used in this diaphragm:

Material	Maximum Storage Period	Maximum Operating Time
EPDM	7 years	3 years
PTFE or advanced PTFE	10 years	3 years