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Pneumatic PFA PTFE Lined Butterfly Control Valve Flanged

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Pneumatic Butterfly Valve

Product Name: lined butterfly control valve;
Lining Material: PO,PE,PP,FEP,PTFE,PF
Body Type: staight-way cast butterfly valve;
公称直径: DN50~DN1000;
Nominal Pressure: PN10,PN16,Class150Lb;
Flow Characteristics: equal percentage,quick open,linear.

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  • Specifications

Pneumatic PFA PTFE Lined Butterfly Control Valve Flanged

Thelined butterfly control valveis composed of a pneumatic piston actuator and a PFA or PTFE lined butterfly valve.ThePFA聚四氟乙烯lined butterfly control valvehas excellent anti-corrosion performance,because the valve trim is lined with PFA or PTFE,such as disc,stem,body,etc.

The lined butterfly control valve has the advantages of corrosion resistance, no leakage, long life, etc. It is suitable for working conditions with corrosion or cleanliness required with temperature ≤180 °C. It can be applied to any concentration of acid, alkali, salt and oxidant, reducing agent, organic solvent and other medium.Pneumatic lined PFA PTFE butterfly control valve is an ideal product for the use of shut-off and control equipment for gas, liquid and semi-fluid pipelines and vessels in chemical, petroleum, pharmaceutical, food, iron and steel smelting, papermaking, hydropower and other systems.

Technical Parameters of PFA PTFE Lined Butterfly Control Valve:

Valve Body Type staight-way cast butterfly valve
公称直径 DN50~DN1000
Nominal Pressure PN10,PN16,Class150Lb
Flange Standard HG/T20592-2009,ANSI B16.5,JIS B220
Connection Type flanged
Bonnet Type integrated style
Gland Type gland compression type
Packing V-type PTFE, flexible graphite
Disc vertical plate
Flow Characteristics equal percentage,quick open,linear
Actuator Model GT/SR/AT/AW/TH(QGSY) series
Air Supply Pressure 400-700KPa
Air Source Interface G1/4″、G1/8″、G3/8″、G1/2″
Ambient Temperature (-30-+70℃)
Action Type single-acting,double-acting
Accessories solenoid valve,air filter pressure reducing valve,limit switch
,handwheel,positioner,etc.

Parts Name Material
Body/Seat WCB,LCB,CF8,CF8M,CF3,CF3M
Disc WCB,304,316,316L
Seal Ring fluororubber,PTFE
Lining Material PO,PE,PP,FEP,PTFE,PFA
Stem 17-4PH,2CM3,stainless steel
Packing V-type PTFE

Main Performance Specification of Lined Butterfly Control Valve:

DN(mm) 50-500
Nominal Pressure PN(MPa) 0.6 1 1.6
Test Pressure Strength Test 0.9 1.5 2.4
Sealing Test 0.66 1.1 1.76
Low Pressure Air Tightness Test 0.6 0.6 0.6
Application Medium Concentrated sulfuric acid, hydrochloric acid, nitric acid,

hydrofluoric acid,aqua regia,various organic acids,strong acids,

oxidizing medium or high temperature olefinic sulfuric acid,

high temperature concentrated acetic acid, acid and alkali alternates

and various organic solvents and other highly corrosive medium.

Backlash with positioner:less than 2% of full travel
Basic Deviation with positioner:less than ±2% of full travel
Leakage ANSI B16.104 IV class
Rangeability 50:01:00

The Dimensions of Flanged Lined Butterfly Control Valve:

DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600 700 800 900 1000
L 108 112 114 127 140 140 152 165 178 190 216 222 229 267 292 318 330 410
H 63 70 83 105 115 137 164 206 230 248 289 320 343 413 478 525 585 640

The Features of Lined Butterfly Control Valve:

1. Small size, light weight, simple operation, easy installation and maintenance;
2. Excellent sealing performance, zero leakage and long service life;
3. The flow characteristic of lined butterfly control valve tends to be linear and the regulating performance is optimal;
4. Simple structure, quick switch, 90° rotation and opening and closing;
5. It can replace the use of various valves such as gate valve, globe valve, plug valve, hose valve and diaphragm valve;
6. Pneumatic and electric devices can be configured according to user requirements to meet the needs of remote control and program control;
7. Different processes and lining materials can be available for a variety of medium;
8. It is widely used in chemical, pesticide, papermaking, water treatment, printing and dyeing, etc. For corrosion resistant applications with large diameters, it is recommended to choose a corrosion resistantlined butterfly control valve.

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