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Method and device for checking the tightness of a moving membrane
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Packing for mass transfer operations - formed from turning cutter on plastic rod to give crimped spiral form
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Double-acting seal between components - has sealing strip ribs engaging in supporting strip grooves to prevent turning
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SEALING RING, IN PARTICULAR WIPER RING, MADE OF ELASTOMERIC MATERIAL
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Corrugated plastics hose with reinforcing ring in corrugations - by radially expanding the hose between the rings
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Tool for inserting flexible sealing rings - has closing plug and piston for inserting ring into bore groove
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PTFE-lined steel pipes or fittings - produced by plastics coating surfaces to be bonded with application of pressure
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Sealing packing strip for gland - has raised pattern of spots or polygons or rows of stamped grooves
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O-ring seal with high resilience - has core of coiled wire spring enclosed in sheath of flexible plastic
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Fluoropolymer injection mouldings with a PTFE surface layer - thermoplastic cooled under pressure in contact with PTFE layer
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