Fisher series pneumatic single seat regulating valve

Fischer type pneumatic single seat regulating valveCompact structure, S-shaped flow channel, resulting in low pressure drop loss, high flow rate, wide adjustable range, high precision of flow characteristics, in compliance with IEC534 standard. The leakage rate of the regulating valve complies with ANSI B16.104 standard. The regulating valve is equipped with electric actuators such as PSL, 3610, 3810, etc. Its structure is compact, the output force is large, and the product meets the standard of GB/T13927-92.

2、 Main technical parameters of KHTS pneumatic 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 typeFlange connection: FF, RF, RJ, LG, groove type, embedded type
Flange standardJIS B2201-1984, ANSI B16.5-1981, GB/T9112-9124-2000, etc
welded connection: Socket welding SW
Material ScienceCast steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2Ti, ZG00Cr18Ni12Mo2Ti), titanium, etc
Upper valve coverRoom temperature type (P): -17~+230 ℃
Elongation Type I (E1): -45~-17 ℃+230~+566 ℃
Elongation Type II (E2I): -100~-45 ℃
Extension type II (E2W): -196~-100 ℃
Note: The working temperature should not exceed the allowable range of various materials.
Cover type: Bolt compression type
Packing materialV-shaped PTFE packing, PTFE impregnated asbestos packing, asbestos weavingfillerGraphite filler
Valve components
SPOOL TYPESingle seat plunger type valve core
Traffic characteristicsPercentage characteristics (%) and linear characteristics (L) of metal valve seats, refer to the flow characteristic curve graph
The high-precision flow characteristics with Cv values ranging from 0.04 to 14 comply with the IEC534-2 standard
Soft valve seatEqual percentage characteristic (%) and linear characteristic (L), refer to the flow characteristic curve graph
Note: For the working temperature and pressure difference of PTFE valve seats, refer to the flow characteristic curve diagram
Material ScienceStainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti, 17-4PH, 9Cr18, 316L), stainless steel overlay with Stellite alloy, titanium and corrosion-resistant alloys, etc

III KHTSpneumatic control valveElectric actuator parameters

TypeDKZ series electric actuator; 361L series electronic electric actuator; RS series electric actuator; PSL series electronic electric actuator
Input signalDKZ 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 mechanismDKZ actuator: Handwheel; 361L actuator: clutch type; RS actuator: handwheel; PSL actuator: Handwheel
ambient temperature：－20～＋60℃
Valve action typeElectric closed or electric open type

4 KHTSpneumatic control valvePerformance

leakage rateMetal valve seat: less than 0.01% of the rated capacity of the valve, in compliance with ANSI B16.104-1976 Class IV
Soft seat: 10-7 less than the rated capacity of the valve, in compliance with ANSI B16.104-1976 Class IV
Return differencePneumatic with locator: less than 1% of full stroke, without locator: less than 3% of full stroke (LHA1 type less than 5% of full stroke)
The electric DKZ actuator is 1.5%; 2% for 361L actuator; 1% for RS execution mechanism; Equipped with PSL actuator at 1%
Basic errorPneumatic with locator: less than ± 1% of full stroke, without locator: less than ± 5% of full stroke
The electric actuator with DKZ actuator has a tolerance of ± 2.5%; Equipped with 361L actuator for ± 2%; Equipped with an RS actuator of ± 1%; Equipped with PSL actuator for ± 1%
Note: Standard V-shaped polytetrafluoroethylene packing is used
Adjustable range:50:1 (0.25 ≤ Cv ≤ 14) or 30:1 (CV ≤ 0.16)

5、 KHTS pneumatic single seat regulating valve CV value and stroke

I. High capacity valve core

II. High precision flow characteristic valve core

1. The symbol ○ indicates the specification range of the valve.

Note: For situations where cavitation, flash evaporation, or water temperature exceeds 100 ℃, it is recommended to use 9Cr18 hardened stainless steel. 2. For regulating valves that are prone to cavitation, flash evaporation, oil prohibition, and are often in a closed state, regardless of the operating temperature and pressure difference, it is recommended to weld with Stellite alloy.

6、 KHTS pneumatic single seat regulating valve external connection dimensions and weight

Flange distance (mm)

Note: The flange distance complies with the standard of IEC534.

Dimensions (mm)

Weight (Kg)