The 57WCTV is a Rieke® SC-76R-143, 70mm white polyethylene (PE) plastic screw cap (Buttress 6TPI) with 3/4" (20mm) threaded opening (reducer) and a Micro-Porous Gauze Vent that allows two-way venting for either pressure or vacuum relief. This Rieke 70mm screw cap offers convenient filling and dispensing of a container and ease of access.When using these vents:
- Be sure to allow for adequate head space (outage) in the container. Failure to do so can plug the vent or cause leakage.
- The container should be transported and stored in an upright position.
Polyethylene (PE) is the most commonly produced and used plastic polymer in the world. PE has good chemical resistance and is typically translucent and waxy in nature. We have various products made of polyethylene, from buttress screw caps with Flexspout to spill decks. PE bottles have a maximum hot fill temperature of 120°F.
This information has been provided as a general guide. It is the customer's responsibility to select the proper container for product and application compatibility.