• Jiangsu Flowan Auto-Control Co.,ltd
    Mohamed Arshad
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  • Jiangsu Flowan Auto-Control Co.,ltd
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  • Jiangsu Flowan Auto-Control Co.,ltd
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Contact Person : William
Phone Number : 86-15261587237
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Equal Percent Linear Pneumatic Actuator , Diaphragm Control Valve With Pneumatic Actuator

Place of Origin CHINA
Brand Name FLOWAN
Certification CE ISO
Model Number FLL
Minimum Order Quantity 1PC
Price FOB
Packaging Details PLYWOOD 
Delivery Time 15-20 DAYS
Payment Terms T/T
Supply Ability 1000[pc
Product Details
Type Diaphragm Type Customized Support OEM
Flow Characteristic Equal Percent; Linear Nominal Pressure(DIN) PN16/25/40/63/100
Control Standard Or Nonstandard: Valve Species Single Seat, Double Seat, Sleeve
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Equal Percent Linear Pneumatic Actuator


PN16 Linear Pneumatic Actuator


Diaphragm Control Valve With Pneumatic Actuator

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Product Description

Equal percent Linear Pneumatic diaphragm control valve,Linear Pneumatic Actuator


1. General


Pneumatic diaphragm control valve is the terminal industrial process measurement and control system control device, is composed by pneumatic diaphragm actuator, direct through single-seat,double seat and sleeve valve, etc., which can automatically change the valve trim position according to the control signal system , changing the flow area between the valve trim and the valve seat, to change the valve drag coefficient, to realize the regulation for the medium flow, pressure and level and other process parameters adjustment.
Pneumatic diaphragm valve use dual-oriented structure, equipped with multiple spring actuator, with a compact, light weight, sensitive, valve capacity big, flow characteristics of precision, easy to disassembly. Widely used for precise control of gas, liquid, steam and other media, process parameters such as pressure, flow, temperature, level maintained at a set value. Especially for the smaller amount of pressure and small leakage workplace.


2. technical performance and data

control valve data

(1) valve body material-cast iron,cast steel and so on

(2) pressure class:1.6MPa,4.0MPa,6.4MPa
(3) connected way:flange connection according to JB79-59
(4) temperature scope:normal-20C~+230C air cooling fin-60 C~+450C
(5) action way:positive (air to close type)or back action (air to open type)
(6) flow characteristic:equal percent/linear
(7) leakage:single seat 0.01%×rated Kv
(8) ouble seat,sleeve seat:0.5%×rated Kv


3. Structural principle


Pneumatic diaphragm valve including pneumatic diaphragm actuator and the control valve
FLLP pneumatic control valve is a single-seat control valve with FLL pneumatic diaphragm actuator
FLLN pneumatic double seat valve is a double seat valve with FLL pneumatic diaphragm actuator
FLLM pneumatic sleeve valve is a sleeve valve and FLL pneumatic diaphragm actuator


4. pneumatic single seat control valve


DN 20 25 32 40 50 65 80 100 125 150 200 250 300
Spool diameter(mm) 10 12 15 20 25 32 40 50 65 80 100 125 150 200 250 300
Rated flow Kv 1.2 2 3.2 5 8 12 20 32 50 80 120 200 280 450 700 1100
1.6 4.0 6.4
FLL pneumatic actuator model FLLA/B-11 FLLA/B-22 FLLA/B-23 FLLA/B-34 FLLA/B-45 FLLA/B-56
Rated travel
10 16 25 40 60 100
Flow characteristic Equal percent linear
Action way Air to open Air to close
Temperature scope -20℃~+230℃ -60℃~+450℃