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Flexibles Hoses & Couplings

Flexibles Hoses & Couplings
Flexible vacuum connections are typically made by using edge welded bellows, hydroformed flexible couplings and hoses or PVC hoses. Flex hoses are available with a variety of flange types or with butt weld fittings. A variety of finishes are available as well.

Nominal ID sizes:

Bellows: 3/4 to 4 inch (19.05-101.6mm)PVC Hose: 1/2 to 2 inch (12.7-50.8mm)Flex Couplings: 3/8 to 12 inch (9.53-304.8mm)


Bellows: 316L or 321 stainless steelPVC Hose: Wire reinforced polyvinyl chlorideFlanges: 304 stainless steel (316L available on request)

Vacuum range:

Metal seal: >1 x 10-10 mbar - UHVElastomer seal: >1 x 10-8 mbar - High vacuumPVC Hose: >1 x 10-2 Rough vacuum

Temperature range:

Metal seal: -200ºC to 450ºCElastomer seal: -20ºC to 150ºCPVC Hose: -4ºC to 65ºC

Flange Types:



Protective braided sleeving

All dimensions are in inches (mm) & weights are in pounds (kg), unless otherwise noted. Spring rates are called out in pounds/inch.