The devices switching safety valves

OKP code 374200

Production and delivery on TU 3742-007-07533604-2003

The device switching is installed when under the terms of work there can be a need of shutdown of one safety valve and at the same time, without stopping working process, connection of another, for change of the direction of a stream of the environment, for mixing of environments.

Tightness of a lock in accordance with GOST 9544-93 class A.

Each safety valve has to be calculated on a full propusknuyusposobnost. In the device switching at rotation of a flywheel there is a movement of locking body from one saddle to another, thereby either one safety valve, or both will be connected to the protected object.

The ram installed on a spindle specifies an arrangement of locking body.

The device switching for additional payment can be delivered complete with safety valves, and also with flanges, laying and fasteners for accession to the pipeline. At installation of the block consisting of the device switching and safety valves it is necessary to provide the additional fastening of system providing rigidity and durability of a design.

The devices switching if necessary can be manufactured on an entrance and an exit of safety valves and to connect among themselves chain transfer, for the purpose of synchronous management. In this case the devices switching are completed with asterisks for chain transfer. At rotation of a flywheel of one of the devices switching (for example, established on an entrance to valves) there is a simultaneous movement of locking body of both devices switching and overlapping of the pipeline on an entrance and an exit to the safety valve. Need of such execution is specified in the order.

Example of designation at the order of the device of the switching DN50 of mm of PN of 16 kgfs/cm2 from steel 12H18N9TL, construction length of 340 mm:
"The device the switching DN 50 PN of 16 kgfs/cm2 of PU-50-16-02nzh, 23nzh16nzh"