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10<br />
<strong>Descaling</strong> <strong>ValVes</strong><br />
Pump Minimum Flow Control Valves (Without Power Operator/Automatic Recirculation Valve)<br />
developed for high pressure centrifugal pump protection. Popular applications<br />
include boiler feed water, petroleum, and steel mill hot strip descale water.<br />
Feature<br />
• Positive fail open bypass.<br />
• integral pulsation damper.<br />
• Forged steel body.<br />
• Design does not utilize a pilot valve or tube.<br />
• start-up bypass inserts available due to<br />
start-up debris.<br />
• maxi-Flow protection available.<br />
Minimum Flow Control<br />
With Power Operator<br />
restriction<br />
Office<br />
control Valve<br />
Or gate Valve<br />
Minimum Flow Control<br />
With Auto Recirc. Valve<br />
automatic<br />
recirculation<br />
Valve<br />
control Valve<br />
Or gate Valve<br />
Pump<br />
Back Press.<br />
Valve<br />
By-Pass line<br />
Pump<br />
reservoir<br />
reservoir<br />
it provides economical and reliable protection for low and reverse flow.<br />
By combining the functions of main line check valve, flow sensing, bypass flow<br />
control, bypass pressure reduction, pulsation dampener, and bypass line check<br />
valve, the valve eliminates at least seven components necessary with a conventional<br />
system. The valve operates without air or electric power and is easily installed<br />
with three connections.<br />
the valve is installed on the pump discharge, just as an ordinary check valve<br />
would be.<br />
Upon pump start-up, and without process demand, the bypass is completely open,<br />
recirculating the necessary minimum flow. Once process demand starts, the<br />
spring loaded disc is lifted and held in position by flow demand. Until main flow<br />
demand exceeds recommended minimum flow, the valve will modulated. as the<br />
main flow demand increases beyond recommended minimum flow, the bypass will<br />
close and all flow will go to the process.<br />
BeneFit<br />
• Positive pump protection.<br />
• smooth operation.<br />
• superior pressure containing integrity.<br />
• less sensitive to debris and operation.<br />
• cycle is not as harsh which can lead to system instability.<br />
• avoids possible damage to bypass trim.<br />
• Unique feature to prevent pump run-out.<br />
• long term proven design...Your operation is not a test lab.<br />
P<br />
the minimum flow control valve(automatic recirculation valve) of descaling pump is designed, manufactured and qualified by based on custom designed Product.<br />
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