DN500 High neck and Strengthen Ring Manlid ASSY

Normally 8 point fastening. 8mm thick neck/compensating ring. Profiled to suit tank radius. The cover has single and double skin construction for choice. With TIR facility. The height of neckring could be changed as your requires. The max opening angle is standard 135°.
Options:
- Fastening Points: 2bar/4 points, 3bar/6 points, 4bar/8 points
- Hand nuts: Stainless steel and naval Brass
- Seal Supplied Separately according to chemical medium.