Pneumatic PFA PTFE Lined Butterfly Control Valve Flanged

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.