Stainless Steel Pneumatic Ventilation Butterfly Valve

• Media: Water/Gas/Oil
• Driving Mode: Pneumatic/Manual
• Connection Form: Flange
• Structure: Centre Sealing
• Seal Form: Force Sealed
• Valve Stem: Normal
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: -40~+450ºC
• 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: DN50-2000mm
• Trademark: ZT
• Origin: China
• HS Code: 8481901000

Product Description

Pneumatic Ventilation Butterfly Valve

Summary:
Pneumatic ventilation butterfly valve is a closed rotary butterfly valve used in the ventilation pipeline, the use of the middle line butterfly plate and the short structure of the structure of the welding form, used to adjust the flow and control switch. This butterfly valve resistance is small, the flow coefficient is big, the weight is light, opens and closes quickly. It can be used together with the valve positioner, and can realize the proportion adjustment, especially it is suitable for the large diameter.



 

Pneumatic Ventilation Butterfly Valve
Valve	Pneumatic Ventilation Butterfly Valve
Model	ZTQ641W
Size	DN50-2000mm
Nominal Perssure	PN10,PN16,PN25MPa
Body Material	Stainless steel(CF8,CF83,CF3,CF3M)
Working Temperature	-40~+450ºC
Accessory	Solenoid valve, positioner, limit switch, manual mechanism
Application range	Air, gas, dusty gas, hot and cold air, etc.
Features	It has small flow resistance, large flow coefficient, light weight. Besides, it is suitable for large diameter.

 

Pneumatic Ventilation Butterfly Valve
Nominal Diameter	DN50-1200mm
Rated Air Leak	PN10,PN16,PN25MPa
Connection	Flange Type,Wafer Type
Sealing Type	Seal of ontology
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 DN(mm)	Size(mm)										Actuator Model (Reference)
	L	H	0.05MPa &0.25MPa				0.6MPa
			D	D	D2	N-d	D	D	D2	N-d
50	108	70	140	110	88	4-18	140	110	88	4-14	GTD-52
65	112	80	160	130	108	4-18	160	130	108	4-14	GTD-52
80	114	95	190	150	124	4-18	190	150	124	4-18	GTD-52
100	127	105	210	170	144	4-18	210	170	144	4-18	GTD-65
125	140	120	240	200	174	8-18	240	200	174	8-18	GTD-65
150	140	132	265	225	199	8-18	265	225	199	8-18	GTD-65
200	152	160	320	280	254	8-18	320	280	154	8-18	GTD-80
250	165	187	375	335	309	12-18	375	335	309	12-18	GTD-80
300	178	220	440	395	363	12-22	440	395	363	12-22	GTD-100
350	190	245	490	445	413	12-22	490	445	413	12-22	GTD-100
400	216	270	540	495	463	16-22	540	495	463	16-22	GTD-115
450	222	297	595	550	518	16-22	595	550	518	16-22	GTD-115
500	229	322	645	600	568	20-22	645	600	568	20-22	GTD-125
600	267	377	755	705	667	20-26	755	705	667	20-26	GTD-125
700	292	430	860	810	772	24-26	860	810	772	24-26	GTD-160
800	318	487	975	920	878	24-30	975	920	878	24-30	GTD-190
900	330	537	1075	1020	978	24-30	1075	1020	978	24-30	GTD-210
1000	410	587	1175	1120	1078	28-30	1175	1120	1078	28-30	GTD-210
1200	470	687	1375	1320	1280	32-30	1405	1340	1295	32-33	GTD-255

 

Optional functions
Driving Type	Compressed air (with handwheel)
Pressure	0.4-0.7MPa
Air connection	G1/4"; G1/8"; G3/8"; G1/2"
Environment temperature	-30-+70ºC
Type of action	Single action; double action
Optional accessory	Positioner, solenoid valve, air filter pressure reducer, position retaining valve, limit switch,  transmitter, handwheel mechanism, etc.

 

Additional Parameters
Nominal Perssure(MPa)	0.05MPa	Temperature	-30ºC~-350ºC
Strength Test	0.1MPa	Applicable Medium	Cold and hot air, smoke
Flow Rate	25m/s	Leakage rate	3%

Advantages:
1. Valve switch can be controlled remotely.
2. There are no connecting rods and bolts inside the valve body. Long service life, can be installed in a variety of working conditions, not affected by the media.
3. Adopt the structure form of middle line butterfly plate and short structure welding, small resistance, large flow coefficient, light weight, quick opening and closing, avoid the influence of high temperature expansion.

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.