Food grade rubber washer
A food grade rubber washer may act as a seal, spacer or resilient interface in food-handling equipment. Identify its function and whether it directly contacts the product before choosing the material. A washer used under a fastener can have different requirements from one compressed around a fluid connection.
Silicone is one possible material for a food-contact washer when the selected finished compound suits the intended contact and cleaning conditions. Other compounds may be appropriate for different duties. Material selection must account for the food, temperature, cleaning agents and repeated compression rather than assuming that one rubber is best for every application.
Specify inside diameter, outside diameter, thickness and the compression available in the joint. Check the mating faces for alignment and damage. Service life depends on the compound and operating conditions, so replace a washer when inspection or leakage indicates deterioration rather than relying on a universal life expectancy or material-life multiplier.
Product specifications
- Product function
- Food-equipment washer used as a seal, spacer or resilient interface.
- Contact scope
- Identify whether the washer directly contacts food and define the cleaning cycle.
- Washer dimensions
- Inside diameter, outside diameter and thickness.
- Joint compression
- Match available compression and alignment of the mating faces.
- Service life
- Set inspection and replacement criteria for the actual operating conditions.
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