Preinsulated stop valve
Component Number:
4290
Applicable Systems:
The Bonded TwinPipe
Description
Return spindles are approx. 20 mm higher than flow spindles.
LOGSTOR standard preinsulated isolation valve is either a Vexve valve or a Broen valve. The geometry, spanner width of the spindle and of the backstop are the same regardless of which valve is delivered.
As a standard valves with reduced passage are delivered. On enquiry valves with full passage may be delivered.
Operation of valves with reduced passage:
Valve ø 219.1 mm must be operated by means of a gear.
Valves ø26.9 - 168.3 mm can be operated by means of a tee key.
Valves ø114.3 - ø219.1 mm can be operated by means of a portable gear.
Operation of valve with full passage:
Valves ø168.3 - 219.1 must be operated by means of a gear.
Valves ø26.9 - 139.7 mm can be operated by means of a tee key.
Valves ø88.9 - 219.1 can be operated by means of a portable gear.
Application
In isolation valves and service valves spindles are embedded in the same casing, which is sealed with a stainless top.
The transition between the stainless top and the casing is sealed with a BXJoint
Valves are delivered with caps.
As a standard delivered with a reference point where the surveillance wires are led through the stainless spindle top.
For the screw cover of the reference point spanner size 27 is used. Alternatively, spanner size 55 can be used.
The stop valve have fixing bars welded onto both sides.
Spindle top of valves, service valves and reference points for surveillance wires shall not be under water or backfill material. If this cannot be avoided, the spindle top and service valves must be protected with a PE sealing cap.