Pneumatic Wafer Type Soft Seal /Center Line Butterfly Valve

• Customization: Available
• Media: Water/Gas/Oil
• Driving Mode: Pneumatic/Manual
• Model NO.: D641F
• Connection Form: Wafer
• Structure: Centre Sealing
• Seal Form: Force Sealed
• Valve Stem: Normal
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: -40~+150ºC
• Material of Seal Surface: Soft Sealed
• Valve Body: Sheet Metal
• Standard: GB; JIS; Anis
• Application: Industrial Usage, Water Industrial Usage
• Accessory: Solenoid Valve, Positioner, Limit Switch, Manual
• Application Range: Water, Steam, Air, Oil and Food, etc.
• Transport Package: Wooden Packing
• Specification: DN50-1200mm
• Trademark: ZT
• Origin: China
• HS Code: 8481901000

Product Description

Pneumatic Wafer Type Soft Seal /Center Line Butterfly Valve

Summary:
Pneumatic soft seal butterfly valve is a kind of butterfly valve with good corrosion prevention and sealing performance. Generally it can be divided into flange or wafer connection, and can be used for containing corrosive media and leakage requirements of high atmospheric temperature and pressure occasions. Pneumatic soft seal butterfly valve with a sealing structure, sealing materials such as rubber, polytetrafluoroethylene. The leakage quantity can reach zero leakage. Because of  structure characteristics, the pneumatic sealing butterfly valve is not suitable for high temperature, high pressure and resistance to wear, and other industries. It is only suitable for mormal temperature and low pressure, medium pressure and other places to do the bad border open new and regulating flow using concerns.

Pneumatic Soft Seal /Center Line Butterfly Valve
Valve	Pneumatic soft Seal /Center Line Butterfly Valve
Model	ZTD641F
Size	DN50-1200mm
Nominal Perssure	PN10,PN16,PN25,PN40
Body Material	Carbon steel (WCB)Stainless steel(CF8,CF83,CF3,CF3M)
Working Temperature	-40~+450ºC
Accessory	Solenoid valve, positioner, limit switch, manual mechanism
Application range	Water, steam, air, oil and food, etc.
Features	It has good sealing performance, anti - aging, corrosion resistance, long service life.

 

Technical Parameters of Butterfly Valve
Nominal Diameter	DN50-1200mm
Rated Air Leak	PN10,PN16,PN25MPa
Connection	Wafer Type
Sealing Type	Soft Seal
Air Pressure	0.4-0.7MPa
Range of Action	0~90º
Body Material	Carbon steel (WCB)Stainless steel(CF8,CF83,CF3,CF3M)
Disc Material	Carbon steel (WCB)Stainless steel(CF8,CF83,CF3,CF3M)
Working Temperature	Carbon steel:+29~+400ºC;Stainless steel:+40~+450ºC
Mode of Action	Single action(spring return),Double Action(normal open&normal close)
Control Type	Adjust type; On-off Type

 

 
The appearance and structure of butterfly valve:

Appearance Dimensions:

Nominal diameter		Structure length (standard value)	Overall dimensions (reference value)				Connection size (standard value)
							0.6MPa		1.0MPa		1.6MPa
mm	inch	L	H	H0	A	B	D0	n-d	D0	n-d	D0	n-d
50	2	43	63	315	180	65	110	4-14	125	4-18	125	4-18
65	21/2	46	70	330	180	65	130	4-14	145	4-18	145	4-18
80	3	46	83	390	245	72	150	4-18	160	8-18	160	8-18
100	4	52	105	431	240	72	170	4-18	180	8-18	180	8-18
125	5	56	115	455	240	72	200	8-18	210	8-18	210	8-18
150	6	56	137	626	350	93	225	8-18	240	8-22	240	8-22
200	8	60	164	720	350	93	280	8-18	295	8-22	295	12-22
250	10	68	206	800	550	350	335	12-18	350	12-22	355	12-26
300	12	78	230	860	600	350	395	12-22	400	12-22	410	12-26
350	14	78	248	883	600	350	445	12-22	460	16-22	470	16-26
400	16	102	289	972	600	350	495	16-22	515	16-26	525	16-30
450	18	114	320	1043	750	380	550	16-22	565	20-26	585	20-30
500	20	127	343	1098	750	380	600	20-22	620	20-26	650	20-33
600	24	154	413	1236	750	380	705	20-26	725	20-30	770	20-36
700	28	165	478	1431	750	380	810	24-26	840	24-30	840	24-36
800	32	190	525	1488	750	380	920	24-30	950	24-33	950	24-39
900	36	203	620	1615	1250	380	1020	24-30	1050	28-33	1050	28-39
1000	40	216	725	1765	1500	580	1120	28-30	1160	28-36	1170	28-42
1200	48	254	780	1976	1500	580	1340	32-33	1380	32-39	1390	32-48

Sealing Material Selection and Applicable Temperature:

Material	CR	NBR	EPDM	PTFE	SI	VITON	NR	PA
Model	X/J	XA/JA	XB/JB	F/XC,JC	XD/JD	XE/JE	X1	N
Maximum temperature	82ºC	93ºC	150ºC	232ºC	250ºC	204ºC	85ºC	93ºC
Minimum temperature	-40ºC	-40ºC	-40ºC	-268ºC	-70ºC	-23ºC	-20ºC	-73ºC
Working temperature	0~+80ºC	-20~+82ºC	-40~+125ºC	-30~+150ºC	-70~+150ºC	-23~+150ºC	-20~+85ºC	-30~+93ºC

Advantages:
1. The structure is simple, the flow resistance coefficient is small, the flow characteristics tend to be straight, and there is no debris retention.
2. The connection between disc and stem is pin free to avoid possible internal leakage points.
3. It can be divided into pneumatic clamping soft sealing butterfly valve and pneumatic flange soft sealing butterfly valve, to meet the needs of different pipelines.
4. The seals can be replaced, and sealing performance is reliable to achieve zero leakage of two-way sealing.
5, The material of seal aging resistance, and has corrosion resistance, long service life.

Company Introduction:   
Zhitai Valve Co., Ltd is a member of Valve Association of Longwan District, is located in Longwan Central Industrial Zone, Wenzhou City. It'a professional technology company integrated with development, manufacturing, sales, and after-sales services of valve actuators and and self-controlled valves. Presently, our main products include: pneumatic actuators, pneumatic valves and pneumatic control valves; electric actuators, electeic valves and eletric control valves; automatic control products. Our products are widely applied in natural gas, electricity, petroleum, chemical, metallurgical, construction, pharmacy, paper, printing and dying. Zhitai series actuators and valves are the best choice for automatic fluid control engineering and equipment manufacturing. We sincerely welcome customers from home and abrode to visit us for supervision, communication and cooperation. It's a great honor for us to cooperate with you.