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Sakagami Ltd., > Product > Pneumatic Seals > Grid-Surface Gaskets

Grid-Surface Gaskets （Static gaskets）

Standard Material： 0.5mm：NBR(RN917) / 1mm：NBR+EVA(RD914)
Pneumatic rubber sheet gaskets originally were designed by Sakagami. Grid-surface has solved protrusion problems of common gaskets during tightening process, and achieved improved sealing performance.

Profiles (Left section)

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  • Standard sheets are available in two thickness.
  • Grid-surface gaskets are available in either standard sheets or customized shapes. Custom die-cut sheets also are available upon request while tooling costs are chargeable.

Characteristics

  • 1.Grid-surface gaskets seal with minimum tightening force, providing excellent sealing performance.
  • 2.Minimal protrusion of rubber during tightening process.
  • 3.Grid-Surface gaskets do not corrode or adhere on the contact surfaces.
  • 4.Superior in weatherability, water and oil resistance.
  • 5.Cuttable (die-punching) into a desirable shape.

Remarks

Please refer to the following table for the shape design and specification selection guidelines.

Dimension table

Items/Thickness 1mm 0.5mm
Material SAPLATIC RD914
（Special compounded NBR Hs90）		 SAPLATIC RN917
（Special compounded NBR Hs90）
Operationg temperature range －30～80℃
Tolerance Thickness
　　　　　　　　　　　　1 +0.35
-0.15		 mm
　　　　　　　　　　　　0.5 +0.3
-0.1		 mm
Shape & Dimensions
75 and under More than 75,
100 and under		 More than 100,
under 150		 More than 150,
200 and under		 200 or over
±0.45mm ±0.6mm ±0.9mm ±1.2mm ±（Dimensions×0.006）
Minimum design width 3mm 2mm
Suggested contact pressure 1～5MPa
｛10～50kgf／c㎡｝		 2～6MPa
｛20～60kgf／c㎡｝
  • ★Fluorine rubber products are available for high temperature-resistant and chemical-resistant applications. HNBR rubber products meet requirements for improved ozone-resistance. For more inforamation, please contact us.
  • ★Gaskets are adequately packaged for the optimum storage. Refer to Cautions for the handling and the storage.
  • ★Surface roughness of contacting surface: Rz 12.5～25
  • ★Contacting surface should be free from oil, grease, lubricant and other contaminants.
  • ★Performance and material tests on packing and seals are also available. Please contact us for more information.

Major Applications

Pneumatic equipments
  • ●Solenoid valves: body, lid and mounting
  • ●Control valves: body and lid
  • ●Cylinder covers
  • ●Drier bodies
Electrical parts
  • ●Dust and water proof for switches
  • ●Contact protecting cover
Railway vehicle equipments
  • ●Door engines: casing cover
  • ●Break cylinders: casing cover
  • ●Gearboxes: casing cover
  • ●Plumbing fittings
Catalogue Download (PDF)

Materials

Substances related to environment

Technical information

TECHNICAL INFORMATION
技術情報
Installing Precautions
Guidance for Designing and Processing Seal Systems
Typical Configuration Example of Packings
Service Range of Packings
Typical Configurations of Seal Systems
Installation Method
Cause of Trouble and Countermeasures
Remarks