Preinsulated stop valve, single pipe, series 3

All preinsulated isolation valves have embedded copper wires for surveillance. As a standard preinsulated isolation valves are delivered with the surveillance wires, extracted into a loop as an isolated wire under the end cap at the spindle top. Where the isolated wire exits under the end-cap it is coated with 25 mm mastic on the outer as well as the inner side. Outside the end-cap the isolated surveillance wire is protected with a strong tape . The surveillance wire is used for fault location in the surveillance system. The protective tape is removed, when the surveillance wire is needed to find faults. They are available in dimensions ø 33.7 - 323.9 mm. Larger dimensions are made to order. 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. For steel dimensions ≥ 219.1 mm the valve must be operated by means of a gear. To be ordered separately. See Tools section. Valves ø33.7 - 168.3 mm can be operated by means of a tee key. Valves ø114.3 - 323.9 mm can be operated by means of a portable gear. Valves ≥ ø168.3 mm can be delivered with a fix gear on enquiry. Hydraulic or electric actuator is available on enquiry.