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Pneumatic three eccentric butterfly valve

Pneumatic three eccentric butterfly valve
  • sell:021-32051999
  • sell:021-32050777
  • fax:021-66099555

Details

  • Product Introduction
  • Service Promise
  • Ordering Process

Pneumatic tri-eccentric butterfly valve is composed of piston pneumatic actuator and tri-eccentric metal seal valve body. Its structure is designed on the principle of three-dimensional coring. The valve seat adopts a multi-level structure compatible with hard and soft seals. It is exquisite in processing and advanced in technology. Pneumatic tri-eccentric butterfly valve can be equipped with external pneumatic valve positioner, input control signal (4-20mADC or 1-5VDC) air source can control operation, can also be equipped with stroke limit switch, solenoid valve, triple and 0.4-0.7MPa air source to achieve switching operation, and send two pairs of passive contact signals indicating the valve switch. Pneumatic tri-eccentric butterfly valve consists of valve body, butterfly plate, multi-level seat, valve stem, transmission mechanism and other major components, is a long life, energy-saving butterfly valve. Pneumatic tri-eccentric butterfly valve is widely used in metallurgy, power, petroleum, chemical, air, gas, combustible gas, water supply and drainage pipelines and other corrosive media.


Main characteristics of pneumatic three eccentric butterfly valve


1. The valve adopts three eccentric sealing structure, and the valve seat and butterfly plate wear little.


2. The sealing ring is made of stainless steel. It has the double advantages of hard metal sealing and elastic sealing. It has excellent sealing performance, corrosion resistance and long service life, no matter at low and high temperature.


3. Butterfly plate sealing surface is made of cobalt base cemented carbide, the sealing surface is wear resistant and has long service life.


4, large diameter butterfly plate adopts quilting structure, high strength, large flow area and small flow resistance.


5. Pneumatic tri-eccentric butterfly valve has two-way sealing function. It can be installed in any direction without the restriction of the flow direction of medium or the influence of space position.


6, the driving device can be installed at multiple stations (rotating 90 degrees or 180 degrees) for user convenience.


Main technical parameters of pneumatic three eccentric butterfly valve


valve body


type of body
直通鑄造蝶閥
Nominal path
DN50~1000mm
Nominal pressure
PN1.0、1.6、2.5MPa
Flanges standard
JIS B220、JB/T79、ANSI B16.5-1981、GB/T9113、HG20594-97、HG20618-97等
Connection form
Flange type
Valve cover form
One in one
Capping type
Gland pressing type
密封填料
V PTFE packing and flexible graphite packing


Valve inner parts


Valve plate form
Vertical plate type (butterfly shaped)
Flow characteristics
Regulated (approximate equal percentage), switch type (linear)


Executive Agency


Actuator type
GT series, ST series, AT series and AW series single and double acting pneumatic actuators
Gas supply pressure
400~700KPa
air connection
G1/4"、G1/8"、G3/8"、G1/2"
ambient temperature
-30~+70℃
Form of action

Single acting actuator: B: when the gas is lost, the valve position is opened (FO); the gas opening type (K) is the valve position (FC) when the gas is lost.

Double-acting actuator: air-closed type (B) - valve position retention (FL) during degassing; air-open type (K) - valve position retention (FL) during degassing

Appendable appendage
Locator, solenoid valve, air filter pressure reducer, retaining valve, stroke switch, valve position conveyor, handwheel mechanism, etc.


Note: for detailed actuator parameters, please go to the pneumatic actuator page for inspection.


Pneumatic three eccentric butterfly valve main parts material


1
base
HT200、WCB、CF3、CF3M、CF8、CF8M
法蘭式
對夾式
2
Lower sleeve
銅合金、304、316
3
valve body
HT200、WCB、CF3、CF3M、CF8、CF8M
4
Seal ring
NBR丁晴橡膠、PTFE、PPL、304、316
5
Pressure plate, butterfly plate
HT200、WCB、CF3、CF3M、CF8、CF8M
6
Fixed pin
25、35、45
7、8
Upper and lower valve shaft
2Cr13、304、316、316L
9
Upper shaft sleeve
銅合金、304、316
10
filler
Polytetrafluoroethylene / flexible graphite
11、12
Packing gland assembly
HT200、WCB、CF3、CF3M、CF8、CF8M


Main performance index of pneumatic three eccentric butterfly valve


Return difference
Positioner: less than 2% of the total stroke.
基本誤差
Positioner: ± 2% less than full stroke.
泄露量l/h
Comply with ANSI B16.104 IV level standard
可調范圍R
50:1


Main performance specification of pneumatic three eccentric butterfly valve


Nominal diameter DN(mm)
50-1800
Nominal pressure
PN(MPa)
0.6
1.0
1.6
Test pressure
strength test
0.9
1.5
2.4
Seal test
0.66
1.1
1.76
Low pressure airtightness test
0.6
0.6
0.6
Applicable medium
Air, water, sewage, steam, gas, oil, etc.


Main dimensions of pneumatic three eccentric butterfly valves


Nominal diameter DN (mm)
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
L1
43
46
49
56
64
70
71
76
83
92
102
113
127
154
165
190
203
216
H
112
115
120
140
170
180
210
240
290
320
350
380
410
470
550
640
710
770
n-φd
4-18
4-18
8-18
8-18
8-18
8-22
12-22
12-26
12-26
16-26
16-30
20-30
20-33
20-36
24-36
24-39
28-39
28-42
H1
Depending on the executing agency.
A
Depending on the torque required by the valve, the configuration models are different and the dimensions are different.
D
165
185
200
220
250
285
340
405
460
520
580
640
715
840
910
1025
1125
1255
D1
125
145
160
180
210
240
295
355
410
470
525
585
650
770
840
950
1050
1170


The best quality, first-class service Qigao creates more value for you!

"Qigao Valve" expects to continuously improve service quality and strive for excellence. "Sincere service" is the eternal theme of "Qigao". "Qigao" strictly followsIS09001-2000 Quality system certification requirements, strict quality control, responsibility to people, to ensure the healthy operation of production, sales and service. Strengthen communication with users and provide quality products to our customers with perfection and perfect service. Hereby our factory makes the following commitments:

Product Standards:

Products in strict accordance with ChinaGB、HG Standard and USAPISuch as standard design, manufacturing, acceptance. The hardness of the sealing surface meets the requirements of the state and the width exceeds the national standard.

pre-sale service:

Product introduction, technical exchange, non-standard product design, troubleshooting。

Sale service:

A trustworthy contract guarantees timely delivery and keeps in touch with customers. For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service:

1、"Qigao" brand product quality period is from the factory12In the month, the implementation of the "three guarantees" service (return, replacement, warranty).

2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions, so as to further improve product quality.

3、Respond quickly to the quality of user complaints, after-sales service personnel rushed to the scene in 24-36 hours (48 hours outside the province).

4、For after-sales service, users are required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of Qigao.

1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:

a、Structure length;

b、Connection Type;

c、Nominal diameter, full diameter, reduced diameter, pipe size;

d、Operating medium and temperature, pressure range;

e、Tests, inspection standards and other requirements

2、The factory can configure various types of driving devices according to customer's specific requirements.。

3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

4、For futures and order customers, please call us in advance to tell the required valve model, specification, quantity, delivery time and location, and timely transfer to the factory account according to the total 30% deposit or full payment. The rest of the payment is pending. Import before shipment to arrange delivery in time.

 

Order Process:

1、Customer purchase list fax to021-33872143,Or call us 021-33872141

2、Receive customer purchase list, provide valve model selection and quotation (price list)。

3、Specific agreement: delivery date, special requirements, etc.。

download Google:

1、If the customer has special requirements for the product, the following instructions must be provided in the order contract.:

a、Structure length;

b、Connection Type;

c、Nominal diameter, full diameter, reduced diameter, pipe size;

d、Operating medium and temperature, pressure range;

e、Tests, inspection standards and other requirements

2、The factory can configure various types of driving devices according to customer's specific requirements.。

3、If the type and model of the valve are determined by the customer, the customer shall correctly state the meaning and requirements of the model and sign the contract under the condition that the supplier and the buyer understand each other.

4、For futures and order customers, please call us first to tell the required valve model, specifications, quantity, delivery time and location, and press the total30%The deposit or full payment will be remitted to our factory account in time., The rest of the payment will be remitted before shipment to arrange delivery in time.。

Sale service:

Trustworthy contract, guarantee timely delivery, keep in touch with customers at any time。

For special or duplicate products, our factory arranges technicians to use and troubleshoot the products for users.

After sales service:

1、"Qigao" product quality period is from the factory12Month, practiceThree packsService (return, replacement, warranty)。

2、During the use of our products, our factory regularly organizes technical and quality inspection personnel to visit and consult users for feedback on product quality, usage status and improvement opinions.,
In order to further improve product quality。

3、Respond quickly to the quality of user complaints, after-sales service personnel24-36Hours (outside the province48Hour) rushed to the scene。

4、For after-sales service, the user is required to fill out the quality feedback information form after the service and make an appraisal opinion in order to improve the service quality of “Qigao”.。

statement

  1. All text, data and pictures in this article are for reference only.Pneumatic three eccentric butterfly valvePlease contact us at 4000-700-665 for details of performance, size and price.
  2. If there is no explanation, this article is original, reprint, please indicate the address of this article, thank you for your cooperation!
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