Control Valves used to control the temperature, pressure, flow rate, flow characteristic operation speed etc. to meet flow control requirements mainly include Globe Control Valves, Self-operated Control Valves, Pressure Relief Valves, Hydraulic Slow Closing valves, Emergency Shut Down Valves etc.
YFL Pneumatic bellows seal control valves with bellows in the extended bonnet are applied for poisonous, flammable and corrosive service to realize secondary seal and zero leakage.
YFL Pneumatic low noise globe control valve is a kind of pressure balanced control valves with customized holes in the cage to reduce noise for applications with high noise.
YFL Pneumatic intelligent single seat globe control valves with various trim components and bonnet type are suitable for high pressure difference, high temperature and low noise etc.
YFL Pneumatic PFA lined globe control valves have body, plug, seat, stem lined with fluorine plastic such as PFA and FEP to be corrosion resistant against most corrosive medium.
YFL Pneumatic pressure balanced globe control valves are designed with balanced holes in the plug for applications with high pressure difference and low noise.
YFL Pilot operated pressure relief valves are mainly applied in such industries as petroleum, natural gas, chemistry, electric, metallurgy and city gas for large discharge.
YFL Ductile iron pressure reducing valve includes main valve, needle valve, reducing pilot, ball valve, inlet and outlet pressure gauge and strainer etc.
YFL Three way control valves are used as three way diffluence valves or three way confluence valves to regulate the fluid temperature in the heat exchanger in petroleum industry.
YFL Pneumatic intelligent angle control valves are applicable for the applications which need changeable flow directions, with high viscosity medium, or with serious flashing and cavitation.