Electronic electric double-seat regulating valve, ZDLN regulating valve, electronic regulating valve, electric double-seat regulating valve, straight-through regulating valve, regulating valve

I.I. Electronic Electric Double-seat Control Valve - Overview 

 Electronic Electric Double-seat Control Valve - Overview 

The ZDLN electronic electric double-seat regulating valve is composed of the 3810L type (or PSL series) linear electric sub-motor actuator and a straight-through double-seat valve.The ZDLN electronic electricdouble-seat regulating valve is composed of the 3810L type (or PSL series) linear electric sub-motor actuator and a straight-through double-seat valve. It incorporates servo functions and accepts unified 4-20mA or 1-5V·DC standard signals. It incorporates servo functions and accepts unified 4-20mA or 1-5V·DC standard signals. These signals are converted into corresponding linear displacements, automatically controlling the opening degree of the regulating valve to achieve continuous regulation of process parameters such as pressure, flow, temperature, and level in the pipeline. 

The valve seat has two valve core balls, one on the top and the other on the bottom. These signals are converted into corresponding linear displacements, automatically controlling the opening degree of the regulating valve to achieve continuous regulation of process parameters such as pressure, flow, temperature, and liquid level in the pipeline. 

 The thrust exerted by the fluid on the top and bottom valve cores is in opposite directions and of similar magnitude.The valve seat has two valve core balls, one on the top and the other on the bottom. The unbalanced force is very small, allowing for a large pressure difference. The thrust exerted by the fluid on the top and bottom valve cores is in opposite directions and of similar magnitude. The unbalanced force is very small, allowing for a large pressure difference. The rated flow coefficient of this valve is larger than that of a single-seat valve with the same diameter, but the leakage of this valve is greater than that of a single-seat valve. 

 The rated flow coefficient of this valve is larger than that of a single-seat valve with the same diameter, but the leakage of this valve is greater than that of a single-seat valve. 

It is suitable for clean medium applications where the requirement for leakage is not strict and the pressure difference before and after the valve is large. 

II. Electronic Electric Double-seat Control Valve - Valve Body: 

Form: Direct-through double-seat cast ball valve 

Nominal diameter: 25 - 300 mm 

Nominal pressure: 1.6, 4.0, 6.4 MPa 

European standard: JB/T79.1, 79.2 - 94, etc. 

Upper valve cover: Standard type - 17~+230℃, Heat dissipation type +230~+450℃, Low-temperature type -60~-196℃, Bellows seal type -40~+350℃ 

Sealing type: Bolt compression type 

Materials: Cast steel (ZG230—450), cast stainless steel (ZG1Cr18Ni9Ti, ZG0Cr18Ni12Mo2Ti), etc. 

It is suitable for clean medium applications where the requirement for leakage is not strict and the pressure difference before and after the valve is large. 

II. Electronic Electric Double-seat Control Valve - Valve Body: 

Form: Direct-through double-seat cast ball valve 

Nominal diameter: 25 - 300 mm 

Nominal pressure: 1.6, 4.0, 6.4 MPa 

European standard: JB/T79.1, 79.2 - 94, etc. 

Upper valve cover: Standard type - 17~+230℃, Heat dissipation type +230~+450℃, Low-temperature type -60~-196℃, Bellows seal type -40~+350℃ 

Sealing type: Bolt compression type 

Materials: Cast steel (ZG230—450), cast stainless steel (ZG1Cr18Ni9Ti, ZG0Cr18Ni12Mo2Ti), etc. 

Fillers: V-shaped polytetrafluoroethylene fillers, impregnated polytetrafluoroethylene asbestos fillers, asbestos woven fillers, graphite fillersFillers: V-shaped polytetrafluoroethylene fillers, impregnated polytetrafluoroethylene asbestos fillers, asbestos woven fillers, graphite fillers

The ZDLN electronic electric double-seat regulating valve is composed of the 3810L type (or PSL series) linear electric sub-motor actuator and a straight-through double-seat valve. It incorporates servo functions and accepts unified 4-20mA or 1-5V·DC standard signals. These signals are converted into corresponding linear displacements, automatically controlling the opening degree of the regulating valve to achieve continuous regulation of process parameters such as pressure, flow, temperature, and liquid level in the pipeline. 

The valve seat has two valve core balls, and the thrust exerted by the fluid on the upper and lower valve cores is in opposite directions and of similar magnitude. The unbalanced force is very small, allowing for a large pressure difference. The rated flow coefficient of this valve is larger than that of a single-seat valve with the same diameter, but the leakage of this valve is greater than that of a single-seat valve. 

It is suitable for clean medium applications where the requirement for leakage is not strict and the pressure difference before and after the valve is large.

Packing of Standard Packing: 

Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 470 gallon liquid totes Special package is available on request. E FORUs’  is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition