Abstract: The valve testing apparatus is adapted for testing a flanged device having a casing defining a chamber and at least one annular end flange disposed on a horizontal test plate having a fluid inlet. At least one clamping unit is provided which comprises a lever disposed in a radial direction relative to the center of the annular flange. The lever has an outer end detachably resting on an underlying support, and an inner end gripping a portion of the flange. A fulcrum is fixedly mounted above the lever intermediate its inner and outer ends. The lever is adapted to pivot about the fulcrum. A hydraulic ram exerts a vertical force against one end of the lever, thereby causing the inner end of the lever to exert a predetermined clamping pressure on the flange, so as to obtain a fluid-tight connection between the flange and the plate.

Abstract: The clamping apparatus is adapted for testing a flanged device having a casing defining a chamber and at least one annular end flange disposed on a horizontal test plate having a fluid inlet. At least one clamping unit is provided which comprises a lever disposed in a radial direction relative to the center of the annular flange. The lever has an outer end detachably resting on an underlying support, and an inner end gripping a portion of the flange. A fulcrum is fixedly mounted above the lever intermediate its inner and outer ends. The lever is adapted to pivot about the fulcrum. A hydraulic ram exerts a vertical force against one end of the lever, thereby causing the inner end of the lever to exert a predetermined clamping pressure on the flange, so as to obtain a fluid-tight connection between the flange and the plate.