TYPE 2 HANDLE.
This is a standard handle, extended by 760mm, with a square drive
socket to engage the valve control column. Standard finish is hot dip
galvanised. A clearance hole of 135mm diameter is required, in order to
insert the lower end through a partition or deck.
The extension tube may be unbolted, allowing the
handwheel to be re-fitted to the valve, in the conventional manner.
Other types of standard drive connection can be supplied on
request.
Comprising a slot, milled through the outer tube of the control column , through which the vertical position of the inner tube can be seen. Graduations can be marked along the outer column, if desired. Please note: This slot allows ingress of dust to the thread chamber, which may not be desirable. Specify this option when ordering.
To secure a valve against unauthorised use, our normal practice is to supply a special control column, with a steel link just below the top flange. A chain, passing through the handwheel, can be padlocked to the link. Specify this option when ordering.
(not illustrated)