Manhole cover 4 lug 4.5mm dish fitted with 100mm Milk vent

The 4 Lug 4.5mm Low Pressure Manhole Cover is designed and manufactured to comply with the European Standard EN BS 14025, SANS 1518 and the ADR, for the application of transportation of hazardous goods by road. The AMF manhole cover is fitted with a single hinge and secured by four easy fastening eyebolts. Manhole covers can easily be opened to allow for top loading, internal tank cleaning and access to the compartment. The manhole cover is supplied with Hypalon or Viton seals and is fitted with an 100mm combined vacuum / pressure relief vent for the transportation of Milk and permitting freedom of air movement as to minimize pressure differentials between the interior and exterior of the tank vessel (Available in 6 lug 4.5mm version).