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https://www.drumclosure.com/products/plastic-bung/

Plastic bung has different sizes and thread designs to meet varied sealing requirements of steel drums and plastic drums. Steel drum requires plastic drum plug, plastic barrel plug with fine thread, and it needs to follow the same standard as steel drum plug. Plastic drums usually require 2and 3/4 NPT or 2NPS or 2 buttress plastic bungs.

Most common raw mateial for plastic drum cap is PP, and nylon material is made for flammable and explosive proof purpose. Type of gasket used is determined by contents within the drums. There are high temperature, chemical, oil resistant gaskets that come with the plastic bungs.

Types of Plastic Drum Plug
Steel Drum Plastic Bung
Buttress Plastic Bung
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Plastic Barrel Plugs Features
Steel Drum Plastic Bung
Standardized in size of 2 inch and 3/4 inch, steel drum plastic bung is suitable with standard steel drum flange.

Nylon Drum Bung
Special property of nylon drum bung allows it soften and pop out under the relieving pressure from the steel drum.

Buttress Platic Bung
Varied in size and design, polyethylene drum plugs needs to be selected according to HDPE drum design.

How to Use Plastic Barrel Bung Plugs
It is necessary to understand the neck mouth type and filers in tight head steel drum or plastic drum, and figure out whats is the suitable thread and gasket of the plastic drum plugs, plastic drum caps choice for your drum. Any improper factor will reduce sealing performance.

Drum wrench needs to be used while screwing the plastic drum plug, applying proper torque assures the contents are well secured.

Metal drum cap seal or plastic drum cap seal needs to be installed, aiming at double securing the inner contents as well as the neck mouth.

Now the price of drum bung fittings is reasonable, if you have needs, please contact us.