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Hygienic USIT® seal and shim washers
K1491

Hygienic USIT® seal and shim washers

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Item description/product images

DescriptionProduct description:

With its highly reliable sealing and design that is compliant with hygiene requirements, the Hygienic USIT® seal and shim washer is setting new standards for cleanliness in the process industry. Many manufacturers of machinery and systems for the food and pharmaceutical industries use standard shim washers or O-rings for screw connections in or on the product chamber. These are not EHEDG-compliant, however, as contamination and biofilms in the form of bacteria colonies and corrosion can form under the screw head, preventing the design from achieving maximum hygiene standards.

The metallic shim washer with a fixed sealing ring made from 70 EPDM 291 (black) or 70 EPDM 253815 (white) provides a secure, cavity-free seal. The Hygienic USIT® seal and shim washer, made from Fluoroprene® XP 45, is a premium version suitable for applications involving particularly aggressive CIP/SIP cleaning temperatures, high steam sterilization temperatures and process media containing grease. This material has an even larger operating temperature range and is resistant to polar and non-polar media as well as flavoring substances.

Approvals such as FDA, EU1935/2004 and USP Class VI (121°C), plus EHEDG certification, confirm that the Hygienic USIT® washer represents the ideal choice for hygienically demanding applications in the food, beverage and pharmaceutical industries.

Material:Washer:
Stainless steel 1.4404 (AISI 316L equivalent).
Sealing ring:
70 EPDM 291 (black)
70 EPDM 253815 (white)
75 Fluoroprene® XP 45 (blue)
Note:The EHEDG certificate is only valid when a specifically matched hexagon head bolt K1492 or cap nut K1493 is used.Attention:The function of the Hygienic USIT® screw connection system has been tested in combination with stainless steel materials and standard cleaning materials.
The user must check that it is suitable for the application in question.
Accessory:The Hygienic USIT® seal and shim washers can be used with all other products of the Hygienic USIT® range.Drawing reference:
1) Cavity free sealing
Special features:
RoHS
DownloadHere is all the information as a PDF datasheet:

Are you looking for CAD data? These can be found directly in the product table.
 Datasheet K1491 Hygienic USIT® seal and shim washers 237 kB
 Technical information Hygienic USIT ® 311 kB

Drawings

Hygienic USIT® seal and shim washers

Item selection/filter

Item No.

Component
material
Component
color
DD1SSuitable for
hexagon screws
Suitable
cap nuts
CADAcc.PriceOrder
K1491.04170 EPDM 291black4,19,71M4M4 6.44 $ (USD)
K1491.05170 EPDM 291black5,110,71M5M5 6.38 $ (USD)
K1491.06170 EPDM 291black6,113,11M6M6 6.70 $ (USD)
K1491.08170 EPDM 291black8,116,91M8M8 8.55 $ (USD)
K1491.10170 EPDM 291black10,121,21,5M10M10 9.91 $ (USD)
K1491.12170 EPDM 291black12,125,51,5M12M12 10.25 $ (USD)
K1491.16170 EPDM 291black16,133,91,5M16M16 15.57 $ (USD)
K1491.04270 EPDM 253815White4,19,71M4M4 7.55 $ (USD)
K1491.05270 EPDM 253815White5,110,71M5M5 7.46 $ (USD)
K1491.06270 EPDM 253815White6,113,11M6M6 7.82 $ (USD)
K1491.08270 EPDM 253815White8,116,91M8M8 9.98 $ (USD)
K1491.10270 EPDM 253815White10,121,21,5M10M10 11.59 $ (USD)
K1491.12270 EPDM 253815White12,125,51,5M12M12 12.00 $ (USD)
K1491.16270 EPDM 253815White16,133,91,5M16M16 18.21 $ (USD)
K1491.044fluoroprene XP 45Blue4,19,71M4M4 12.16 $ (USD)
K1491.054fluoroprene XP 45Blue5,110,71M5M5 12.00 $ (USD)
K1491.064fluoroprene XP 45Blue6,113,11M6M6 12.61 $ (USD)
K1491.084fluoroprene XP 45Blue8,116,91M8M8 16.10 $ (USD)
K1491.104fluoroprene XP 45Blue10,121,21,5M10M10 18.68 $ (USD)
K1491.124fluoroprene XP 45Blue12,125,51,5M12M12 19.33 $ (USD)
K1491.164fluoroprene XP 45Blue16,133,91,5M16M16 29.38 $ (USD)
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