Adanac Valve Specialities Ltd

Stem Extensions

Adanac design and manufacture stem extensions for various applications. Manufactured in Carbon and Stainless Steel materials to suit the users requirements in terms of length and configuration including:

Simple Lagging Extension

Extending the handwheel or lever allowing the valve to be operated through pipe/process lagging. Standard extension lengths are 65mm, 100mm and 150mm although Adanac’s flexible approach to manufacturing allows for the design and manufacture of lagging extensions at non-standard lengths to suit the user’s particular requirements.

Tee Bar Lagging Extension

Replacing the existing lever or handwheel with a simple Tee Bar operator to allow the valve to be functioned through pipe/process lagging. Standard extension lengths are 100mm and 150mm although Adanac’s flexible approach to manufacturing allows for the design and manufacture of lagging extensions at non-standard lengths to suit the user’s particular requirements.

Double Lagging Extension

Extending both the stem and top works of Ball and Butterfly valves allowing for the valve operator to be fitted outside of pipe/process lagging. This type of extension is suitable for actuated and gear operated valves. Also valves fitted with accessories including locking device, switchbox and position indicator.

Double Lagging extensions can be provided sealed to the existing valve top works with a secondary stem seal at the top. This is suitable for a number of applications, particularly where there is a risk that leakage from the valve stem seal beneath the pipe/process lagging may go undetected.