First, pneumatic fluorine lined butterfly valve product overview

　　Pneumatic fluorine lined butterfly valve with a spherical sealing surface lining PTFE coated butterfly plate, the valve is light to operate, tight sealing performance, long service life; It can be used to cut off or adjust the flow quickly. Pneumatic fluorine - lined butterfly valve is suitable for occasions requiring good sealing and good regulating characteristics. The valve body adopts split type, and the sealing at both ends of the valve shaft is controlled by the rotating base fluorinated rubber between the butterfly plate and the valve seat; The valve shaft is not in contact with the fluid medium in the chamber. Pneumatic fluorine lined butterfly valve is mainly suitable for a variety of different types of industrial pipeline liquid and gas (including vapor) transportation, the use of severely corrosive media, such as: sulfuric acid, phosphoric acid, alkali and other corrosive media.

Second, pneumatic fluorine lined butterfly valve product characteristics

The company's fully lined polytetrafluoroethylene (F4), polytrifluorovinyl chloride (F3) and polyperfluoroethylene propylene (F46) fluorine plastic lined butterfly valves have the advantages of corrosion resistance, no leakage, long life, etc. Ptfe lined pneumatic butterfly valve is suitable for concentrated sulfuric acid, hydrochloric acid, nitric acid, aqua aureus, all kinds of organic acids, strong acids, oxidizing media or high temperature sulfuric acid, high temperature concentrated acetic acid, acid and base alternations and a variety of organic solvents and other strong corrosive media.


(1) Small and light, easy to disassemble and repair, and can be installed in any position.


(2) Simple structure, compact, 90° rotation open fast.


(3) The operation torque is small, labor-saving and lightweight.


(4) Flow characteristics tend to be straight line, good adjustment performance.


(5) Sealing material aging resistance, corrosion resistance, suitable for a variety of media.

Third, the main technical parameters of the pneumatic fluorine lined butterfly valve

weighing-through DN(mm)	50～1600
Nominal pressure PN(MPa)	0.6	1	1.6
Seal test (MPa)	0.66	1.1	1.76
Strength test (MPa)	0.9	1.5	2.4
Applicable temperature	Fluorine rubber：-20℃～200℃
Applicable medium	Water, air, natural gas, oil products and weakly corrosive fluids
Leakage rate	Comply with GB/T13927-92 standard
Driving mode	pneumatic
Configuration actuator	GT, AT, AW series single and double acting pneumatic actuator
Control mode	Two position switch control, 4 ~ 20mA analog signal control

Fourth, pneumatic fluorine lined butterfly valve actuator technical parameters

Actuator type number	GT, AT, AW series single and double acting pneumatic actuator
Air supply pressure	0.4～0.7MPa
Air source interface	G1/4"、G1/8"、G3/8"、G1/2"
Ambient temperature	-30～+70℃
Mode of action	Single acting actuator, double acting actuator
Accessories available	Positioner, solenoid valve, air filter pressure reducer, position keeping valve, travel switch, valve position transmitter, hand wheel mechanism, etc

　　

Pneumatic actuator, double acting and single acting (spring return), rack and pinion drive; AW type pneumatic actuator fork-pulling type drive, reasonable structure, large output force, double acting and single acting valve.

1, gear type double piston, output torque is large, small volume.


2, cylinder selection of aluminum gold material, light weight, beautiful appearance.


3. Manual operation mechanism can be installed at the top and bottom.


4, rack type connection can adjust the opening Angle, rated flow.


5, the actuator optional live signal feedback indication and accessories to achieve automatic operation.


6. IS05211 standard connection provides convenience for the installation and replacement of products.


7, both ends of the adjustable screw can make the standard product in 0° and 90° have a ±4° adjustable range. Make it synchronize with the valve precision.

Fifth, the main parts of the pneumatic fluorine lined butterfly valve materials

Part name	material
Valve body	(ductile cast steel, cast steel, stainless steel)+F46
sphenoid	(gray cast iron, ductile cast steel, cast steel, stainless steel and special materials)+F46
Valve stem	2Cr13、Stainless steel
packing	O-ring, flexible graphite

Sixth, the main design standards of pneumatic fluorine lined butterfly valve

Design standard	GB/T2238-1989
Flange connection size	GB/T9113.1-2000；GB/T9115.1-2000；JB78
Structural length	GB/T12221-1989
Pressure test	GB/T13927-2000；JB/T9092-1999

Seventh, pneumatic fluorine lined butterfly valve installation and connection size

Nominal menstruation (DN)	Main size					Flange size
	L	L1	H1	H	A	1.0MPa			1.6MPa
						D	D1	n-Фd	D	D1	n-Фd
50	108	43	63	315	180	165	125	4-18	165	125	4-18
65	112	46	70	330	180	185	145	4-18	185	145	4-18
80	114	46	83	390	245	200	160	4-18	200	160	8-18
100	127	52	105	431	240	220	180	8-18	220	180	8-18
125	140	56	115	455	240	250	210	8-18	250	210	8-18
150	140	56	137	626	350	285	240	8-22	285	240	8-22
200	152	60	164	720	350	340	295	8-22	340	295	12-22
250	165	68	206	800	550	395	350	12-22	405	355	12-26
300	178	78	230	860	600	445	400	12-22	460	410	12-26
350	190	78	248	883	600	505	460	16-22	520	470	12-26
400	216	102	289	972	600	565	515	16-26	580	525	16-26
450	222	114	320	1043	750	615	565	20-26	640	585	16-30
500	229	127	342	1098	750	670	620	20-26	715	650	20-30
600	267	154	413	1236	750	780	725	20-30	840	770	20-33
700	430	165	478	1431	750	895	840	24-30	910	840	24-36
800	470	190	525	1488	750	1015	950	24-33	1025	950	24-39
900	510	203	585	1615	1250	1115	1050	28-33	1125	1050	28-39
1000	550	216	640	1765	1500	1230	1160	28-36	1255	1170	28-42
1200	630	254	755	1976	1500	1455	1380	32-39	1485	1390	32-48

Eighth, pneumatic fluorine lined butterfly valve product selection

(1) Valve body parameters: nominal diameter, working pressure, process medium, application occasions, valve body material and other series of parameters.

(2) Actuator parameters: actuator form, control mode, control signal (4-20mA,1-5V), mode of action (gas-open, gas-closed)