Manways and Inspection Hatches

High pressure manways are now common place in the Pharmaceutical, Biotech, Food, Dairy and Beverage industries.  Manufactured as standard from 316L stainless steel, our high pressure manways offer the following features and options:

• Sizes –  from Ø150 through to Ø800mm
• Material – 316L and 304L stainless steel
• Carbon Steel – P265 GH specials available to order
• Exotic nickel alloys offered such as 316Ti (1.4571) and Uranus B6
• 20 Bar – Working pressures and full vacuum rating on smaller diameters
• Material certification to EN10204 3.1
• PED 97/23/CE – Certification to the European Pressure Directive
• FDA approved seal materials including silicone, EPDM, FEP and FKM encapsulated
• Welding procedures & approvals to EN 288.3 & EN 287.7 and ASME QW-484

Options:

• Spring assisted hinges on large doors 
• Security locks to prevent dangerous blow-back in a pressure environment
• Surface finishes to 0.3 µM Ra available to order
• Internal security grid and wire crosses
• Range of nylon handles or stainless steel wing nuts
• Extended neck rings to form small vessel walls

Fabrication:

A full fabrication service is offered for our manways including sight glasses, charge ports, inspection hatches and pressure relief valves.  The manways can also be fabricated to form reactor vessels where the neck rings are extended to form the body of the vessel.