ACCUVAC TECHNOLOGY 4.5 inch knife edge seal type flange similar to Conflat /Del-Seal flange is a Double Sided bored flange with through bolt holes.The manufacturer is ISO 9001-2008 registered supplier. Vacuum Flanges are produced in California using DFARS SS304L ESR material. Flange seal performance specifications are: Leak Rating 10-13 Torr; Temperature Range 200 to 450 deg C. The seal mechanism knife-edge and bolting design are compatible with the industry application standards. We offer 14 day return policy if the product is returned, shipment paid, undamaged and unused.
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