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Control Valve

CV3000 regulating valve

Keyword：

straight through single seat cast ball valve DKZ series electric actuator

KHLS Small Diameter Electric Single Seat Control Valve

KHLS small caliber electric single seat regulating valve has a compact structure, and the flow channel is S-streamline, which makes it have small pressure drop loss, large flow, wide adjustable range, and high flow characteristic accuracy, meeting the IEC534 standard. The leakage of regulating valve shall comply with ANSI B16.104 standard. The regulating valve is equipped with PSL, 3610, 3810 and other electric actuators, which are compact in structure, large in output force, and meet the standard of GB/T13927-92.

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E-mail:Jk@vjkvalve.com

KHLS Small Diameter Electric Single Seat Control Valve

1、 Overview of single seat regulating valve

2、 Main technical parameters of electric single seat regulating valve

Type: straight through single seat cast ball valve

Nominal diameter: 20, 25, 40, 50, 65, 80, 100, 150, 200mm

Nominal pressure: ANSI 125, 150, 300, 600

JIS 10、16、20、30、40K

PN1.6、4.0、6.4MPa

Connection type: flange connection: FF, RF, RJ, LG, groove type, embedded type

Flange standards: JIS B2201-1984, ANSI B16.5-1981, GB/T9112 ～ 9124-2000, etc

Welded connection: fillet weld SW

Materials: cast steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, ZG00Cr18Ni12Mo2Ti), titanium, etc

Upper bonnet: normal temperature type (P): - 17~+230 ℃

Elongation type I (E1): - 45 ～ - 17 ℃+230 ～+566 ℃

Elongation type II (E2I): - 100 ～ - 45 ℃

Elongation type II (E2W): - 196 ～ - 100 ℃

Note: The working temperature shall not exceed the allowable range of various materials.

Gland type: bolt compression type

Filler: V-shaped PTFE filler, impregnated PTFE asbestos filler, asbestos braided filler graphite filler

Components inside the valve

Valve element type: single seat plunger valve element

Flow characteristic: equal percentage characteristic (%) and linear characteristic (L) of metal valve seat, refer to flow characteristic curve

High precision flow characteristic with Cv value from 0.04 to 14 conforms to IEC534-2 standard

Soft seat: equal percentage characteristic (%) and linear characteristic (L), refer to flow characteristic curve

Note: For the working temperature and differential pressure of PTFE valve seat, refer to the flow characteristic curve

Materials: stainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti, 17-4PH, 9Cr18, 316L), stainless steel surfacing Stellite alloy, titanium, corrosion resistant alloy, etc

3、 Parameters of electric actuator of electric single seat regulating valve

Type: DKZ series electric actuator; 361L series electronic electric actuator; RS series electric actuator; PSL series electronic electric actuator

Input signal: DKZ actuator: Type II 0 ～ 10mA · DC (input resistance 200 Ω); Type III 4 ～ 20mA · DC (input resistance 250 Ω) 361L actuator: 4 ～ 20mA · DC or 1 ～ 5V (input resistance 250 Ω) RS actuator: 0 ～ 10mA · DC, 4 ～ 20mA · DC PSL actuator: 4 ～ 20mA · DC

supply voltage

DKZ actuator: 220V, 50Hz.

361L actuator: 220V, 50/60Hz.

RS actuator: single-phase control 220V · AC ± 5%; Three phase control 380V ± 5%.

PSL actuator: single-phase control 220V, 50Hz

Manual mechanism: DKZ actuator: handwheel; 361L actuator: clutch type; RS actuator: handwheel; PSL actuator: handwheel

Ambient temperature: － 20 ～＋ 60 ℃

Valve action type: electric close type or electric open type

4、 Main performance of electric single seat regulating valve

Leakage: metal seat: less than 0.01% of the rated capacity of the valve, in accordance with ANSI B16.104-1976 Class IV

Soft seat: less than 10-7 of rated valve capacity, conforming to ANSI B16.104-1976 Class IV

Return difference: pneumatic with positioner: less than 1% of full stroke, without positioner: less than 3% of full stroke (LHA1 type is less than 5% of full stroke)

1.5% for electric DKZ actuator; 2% with 361L actuator; 1% with RS actuator; 1% with PSL actuator

Basic error: pneumatic with positioner: less than ± 1% of full stroke; without positioner: less than ± 5% of full stroke

± 2.5% for electric actuator with DKZ actuator; ± 2% with 361L actuator; ± 1% with RS actuator; ± 1% with PSL actuator

Note: Standard V-shaped PTFE filler is used

Adjustable range: 50:1 (0.25 ≤ Cv ≤ 14) or 30:1 (CV ≤ 0.16)