Double Interlocking Switch Safety Valve (Gakh-1)

We are amongst the top provider of Double Interlocking Switch Safety Valve (GAKH-1) in Wenzhou, Zhejiang, China. This is a new product independently developed by
Luofu based on the original safety valve and changeover valve. According to the
design of API520 and BS1873, the inlet and outlet of the safety valve on the pipeline
can be switched jointly, allowing for simultaneous opening and closing. This
instruction primarily introduces the changeover valve. About the safety valve, please
refer to our Operating Instructions for Spring Type Safety Valve. We offer this at market leading prices.


II. Use & Performance Specification
2.1. Use: The product is widely applied as an overpressure protection device on the
corrosive medium and non-corrosive medium pipelines such as water, oil, natural gas
and steam. It has the advantages of small flow resistance, flexible opening/closing,
long service life, superior safety and reliability and compact structure, it is able to achieve

following functions:
<1. Non-stop operation. While one safety valve is operating, the other can be
taked down for maintenance on the premise of non-stop operation so as
to achieve the maximum economic profits due to reduce the shutdown
period.
<2. Two safety valves share one pipeline, which can reduce both the pipeline
number and cost.
<3. The inlet and outlet changeover valve of the safety valve are allowed for
synchronous operation as well as simultaneous opening/closing, making
the operation m