D41W ventilated butterfly valve

D41W ventilated butterfly valve
  • sell:021-32051999
  • sell:021-32050777
  • fax:021-66099555

Details

  • Product Introduction
  • Service Promise
  • Ordering Process

D41W ventilating butterfly valve/D341W worm wheel ventilating butterfly valve/D641W pneumatic ventilating butterfly valve/D941W electric ventilating butterfly valve is processed into sealing ring with the same material as valve body. Its applicable temperature depends on valve body material selection. The nominal pressure is less than 0.6MPa. It is generally applicable to industrial, metallurgical, environmental protection and other pipelines for ventilation and medium flow regulation.


Main characteristics of ventilated butterfly valve


1, the design is novel, reasonable, unique in structure, light in weight, quick in opening and closing.


2, the operation torque is small, easy to operate, labor-saving and dexterous.


3, adopt suitable materials to meet low, medium and high temperature and corrosive medium.

D641W pneumatic ventilation butterfly valveD941W electric ventilating butterfly valve

Standard for ventilation butterfly valves


Design standard: GB/T12238-1989 JB/T8692-1998


Flange joint size: GB/T9115.1-2000


Structure length: GB/T12221-1989


Pressure test: GB/T13927-1992; JB/T9092-1999


Main technical parameters of ventilated butterfly valve


Nominal path
DN(mm)
50~2000
Nominal pressure
PN(MPa)
0.05
0.25
0.6
Test pressure
strength test
0.075
0.375
0.9
Seal test
≤1%泄漏量
Applicable medium
Gas, dusty gas, flue gas and so on.
Driving form
Manual, worm and worm gear drive, gas drive and electric drive.


Material of main parts of ventilation butterfly valve


Part name
Material Science
valve body
Special materials such as cast steel, stainless steel, chromium nickel molybdenum titanium steel, chrome molybdenum titanium steel and so on.
Disc
Special materials such as cast steel, stainless steel, chromium nickel molybdenum titanium steel, chrome molybdenum titanium steel and so on.
Seal ring
Same as valve body
Stem
Carbon steel, 2Cr13, stainless steel, chrome nickel molybdenum titanium steel
filler
Fluoroplastics and flexible graphite


Selection and applicable temperature of sealing materials for ventilation butterfly valves


Variety of materials
carbon steel
Low temperature carbon steel
Alloy steel
austenitic stainless steel
Chromium molybdenum steel
Code name
WCB
LCB
WC6或 WC9
C5或or C12
鉻Cr-18型e、304、316
12CrMoV
Maximum temperature resistance
425℃
345℃
595℃
650℃
600℃
560℃
Minimum temperature e
-29℃
-46℃
-29℃
-29℃
-196℃
-40℃
Applicable working temperature
≤425℃
≤345℃
≤595℃
≤650℃
≤600℃
≤560℃


Dimensions of ventilation butterfly valves


Nominal path
Structure length (standard value)
Shape size (reference value)
Connection size (standard value)
reference value (kg)
0.05MPa和0.25MPa
0.6MPa
毫米
英寸
L
H
H0
A
B
D
D1
D2
n-d
D
D1
D2
n-d
50
2
108
70
286
125
193
140
110
88
4-18
140
110
88
4-14
14
65
21/2
112
80
306
125
193
160
130
108
4-18
160
130
108
4-14
15
80
3
114
95
334
125
193
190
150
124
4-18
190
150
124
4-18
17
100
4
127
105
354
125
193
210
170
144
4-18
210
170
144
4-18
20
125
5
140
120
384
125
193
240
200
174
8-18
240
200
174
8-18
25
150
6
140
132
409
125
193
265
225
199
8-18
265
225
199
8-18
29
200
8
152
160
593
165
183
320
280
254
8-18
320
280
254
8-18
47
250
10
165
187
650
165
283
375
335
309
12-18
375
335
309
12-18
67
300
12
178
220
715
165
283
440
395
363
12-22
440
395
363
12-22
78
350
14
190
245
814
175
334
490
445
413
12-22
490
445
413
12-22
96
400
16
216
270
863
175
334
540
495
463
16-22
540
495
463
16-22
130
450
18
222
297
918
175
334
595
550
518
16-22
595
550
518
16-22
142
500
20
229
322
1016
210
425
645
600
568
20-22
645
600
568
20-22
191
600
24
267
377
1128
210
425
755
705
667
20-26
755
705
667
20-26
230
700
28
292
430
1233
210
425
860
810
772
24-26
860
810
772
24-26
250
800
32
318
487
1344
210
425
975
920
878
24-30
975
920
878
24-30
320
900
36
330
537
1560
320
620
1075
1020
978
24-30
1075
1020
978
24-30
410
1000
40
410
587
1660
320
620
1175
1120
1078
28-30
1175
1120
1078
28-30
510
1200
48
470
687
1890
320
620
1375
1320
1280
32-30
1405
1340
1295
32-33
720
1400
56
530
760
2670
575
714
1575
1520
1480
36-30
1630
1560
1510
36-36
1270
1600
64
600
895
2810
575
714
1790
1730
1690
40-30
1830
1760
1710
40-36
1730
1800
72
670
995
3020
575
714
1990
1930
1890
44-30
2045
1970
1918
44-39
2750
2000
80
760
1095
3220
656
810
2190
2130
2090
48-30
2265
2180
2125
48-42
3050


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.。

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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.D41W ventilated 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!