begins to hang out in the body, passing water in the closed position. If you also take into account the extremely high coefficient of local

resistance plug valves (3,5-5,7), it is not surprising that plumbers often just throw the locking cap, leaving the body dubious backdrop of

the pipeline.
As sleeved valves, then the passport MTBF of 1,300 cycles, their actual performance is enough for 20-40 cycles, after which the sediment

accumulated on the sealing saddle, do not allow completely block the flow by turning the valve itself in another “architectural

extravagances.” Moreover, the coefficient of local resistance they simply record – from 16 to 20. That is, at a flow rate of 1 m / sec,

passing through the valve, the pressure of the liquid is reduced by 1 m of water.
With the advent of the market brass ball valves, they immediately appreciated was evaluated, and the demand for these products

increases, as well as their scope. Now such products can be found in any economic stall. However, despite their apparent similarity, not

all ball valves are really reliable and durable. Along with high-quality Italian taps, more and more pushed over in the trade cheap Polish, Threaded Brass Ball Valve BVT012D

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