TDL type automatic recirculation valve

The TDL type automatic recirculation valve adopts a forged valve body and is mainly used in medium and low pressure systems. Widely used in low-pressure petroleum and petrochemical systems, boiler feedwater systems, safe and reliable.
The caliber range is from 1 "to 20" (DN25-DN500), and larger sizes can be customized.
The pressure rating is ASME B16.5 600Lb (EN1092-1 PN100).
The bypass pressure difference is Max.40 bar, and the bypass comes with a check function.
The forged valve body is made of stainless steel and carbon steel, and the internal components are made of stainless steel.
characteristic:
① Automatically adjust the bypass opening based on the flow rate;
② The bypass pressure drop can be controlled;
③ Both the main and bypass roads are equipped with check valves;
④ Three way T-shaped structure, suitable for recirculation pipelines.
① Bypass does not require continuous flow, reducing energy consumption;
② Reduce design workload (integrating flow sensing, check, bypass control pressure reduction, and T-shaped structure);
③ Reduce installation and maintenance costs, self reliant, no need for external energy;
④ Reduce the likelihood of faults occurring - minimize the possibility of fluid adjustment causing faults, without cavitation issues and electrical wiring costs;
⑤ Stable operation of the pump can still be ensured under low flow conditions;
⑥ Compared to conventional systems, the overall cost is low.
The main check valve with a Venturi flow channel is suitable for various complex working conditions.