“VALTECH” robust design Three-way change over Valves with safety gland packing in flange design is manufactured with reference standard BS-1873 and can be supplied in Carbon Steel (ASTM-A-216 Gr. WCB), Stainless Steel (ASTM-A-351 Gr. CF8M/CF8/CF3/CF3M) and low temperature steel or any other material as per requirement.

USES

”VALTECH” change-over valves allows essential maintenance work to be carried out on a safety valve, without interruption of the plant operation, simply by changing over to the relevant stand by valve, thus protecting the plant against excessive overpressure.Plants are protected against undue excess pressure by switching over to the relevant standby safety valves. Full blow off capacity is maintained when the change-over-valve switches over from one side to the other. When using change-over-valves in tandem, both hand wheels are linked via a chain wheel in order to assure simultaneous operation.

Design features

Extremely low resistance coefficients due to optimal flow deflection. On account of this safety valves can be combined to the greatest extent with change-over-valves of the same nominal size
Compact weight-saving construction method