Non standard safety valve double belt chain quick switching device

Product Overview

Non standard safety valve double belt chain quick switching deviceModel SLAYF, flange connection, manual chain drive, pressure rating PN16-100/class 150~600, nominal diameter DN25-300/NPS1 '-12', temperature range:+~425 ℃, material carbon steel/stainless steel, integrated design structure compact, reliable sealing, main function can maintain safety valve without stopping the machine. mainly used forRefinery, petrochemical plant, chemical plant

According to usage requirements, an optional (bypass) pressure balancing valve can be installed

Non standard safety valve double belt chain quick switching deviceStructural performance characteristics:

Three way flow design, one workstation can install two identical safety valves, one of which is online for overpressure protection, while the other is used as a maintenance backup.

The reversing system is safe, easy, and fast to operate.

Quick switching reduces the exposure time of personnel in hazardous environments.

Quick switching without the need for device parking, providing continuous overpressure protection to avoid expensive losses caused by emergency parking maintenance.

The prominent red handle correctly indicates the position of the online safety valve (and bursting disc).

If the safety valve is equipped with a handle for pressure relief, there is no need to install a pressure relief valve. Otherwise, a relief valve needs to be installed below each safety valve or rupture disc to safely and effectively release the medium before the safety valve is disassembled and introduce it into the discharge pipe.

According to the requirements, a device balance valve can be selected to reduce the rotational torque and make the operation easy.

Wide applicable temperature range (from low temperature to high temperature).