Electronic electric single seat control valve

[Standard technical parameter]

Body type: single seat, two seat, sleeve

Nominal diameter: DN20-DN200

Nominal pressure: ANSI150, 300, 600LB, JIS10, 16, 20, 30, 40K, PN1.6, 2.5, 4, 6.4MPa

Connection: flange: FF, RF, RJ and LG

Flange standards: ANSI, B16.5, JIS, B2201, JB/T79.1, PN1.6MPa, JB/T79.2 thread: DIN, NPT, RC, BSP, G and other welding: GB12224-89

Sealing surface form: PN16 convex, PN40, PN63, PN100 concave

Material: WCB, 304, 316, 316L

Upper valve cover: standard type (-20 ~ +200℃)

Structural diagram of single seat valve at low temperature (-60~ -196℃)

Heat dissipation type (-40℃~450℃)

Bellows seal type

Gland type: press plate type

Packing: V PVC, PTFE flexible graphite fluoride

[Valve structure drawing]

[Valve assembly]

Spool form: single seat plunger type, two seat, sleeve

Spool, valve seat: 304, 316, 316+STL

Flow characteristics: equal percentage, linear, quick opening

[Actuating mechanism]

Form: Electric actuator

Action form: Positive action and reaction

Control mode: Proportional or switching type

Input signals: 4-20Ma, 0-10V, 1-5V, ON-OFF

Output signal: 4-20mA or passive contact signal

Power supply: AC220V, AC380V, DC24V and so on

Explosion proof grade: ExdIIBT4, ExdIICT6 or other (optional)

Manual device: with handle

Accessories (configured as required)

Heater, overload protection

[Parameter ]

Rating KV: refer to table

Flow characteristics: linear, equal percentage, quick opening

Adjustable range: 50:1

Leakage level: metal seal: less than 0.01 (ANSI, B16.104-1976IV)

Soft seal: less than 0.00001%

Return difference: ≤ 1%

The dead time: ≤ 1%

Basic error:±1%

[Valve features]
       The electronic single seat control valve consists of an electronic electric actuator and a single seat valve, suitable for small pressure conditions. Electric actuator built-in servo system, no need to add servo amplifier, input signal and power supply can control the operation. The structure is compact and the fluid channel is S streamlined. The utility model has the advantages of small size, light weight, small pressure loss, large flow rate, large adjustable range, high flow characteristic precision, etc.. Application of precise control of small flow. Such as fine chemicals, food additives, medical flowers, electronics industry.


[Adaptive condition]
       The electronic electric single seat regulating valve consists of direct stroke electronic actuator and through single seat valve. Embedded servo function, standard signal 4-20mA or 1-5V accept a unified DC, the current signal into linear displacement corresponding to the automatic control valve opening, continuous adjustment of the fluid in the pipeline pressure, flow, temperature, level and other parameters. Applicable to leakage requirements strict, low pressure before and after the valve, and a certain viscosity and contain a small amount of fiber media.