Vacuum Lid for the HM-52 Small Automatic Aggregate Washer allows the wash drum to function both as a deairing device and vacuum pycnometer for asphalt rice test or other specific gravity specimens. The unique action of the rotating drum allows the sample to tumble under water during the vacuum process, removing entrapped air. The lid is made from clear acrylic and fitted with a rotating vacuum seal, a port for connection to a vacuum source and locking tabs.

Features:

Functions as a deairing device and vacuum pycnometer
Made of clear acrylic
Contains rotating vacuum seal, locking tabs, and a port to connect to vacuum

Included Items:

Vacuum Lid for HM-52 Small Automatic Aggregate Washer.

Specifications

Attribute name	Attribute value
Product Dimensions	13 x 13 x 3in (330 x 330 x 76mm) WxDxH
Estimated Shipping Weight	6.0lb (2.72kg)

Product Q&A

Q: How are longer specimens extracted and the piston returned?

Specimens longer than 5in are extracted by repositioning the Adapter Ring after maximum piston travel, and the spring-loaded piston automatically returns to the start position when the release valve is opened.