Cast Steel Gate Valve

Cast Steel Gate Valve
  • sell:021-32051999
  • sell:021-32050777
  • fax:021-66099555

Details

  • Product Introduction
  • Service Promise
  • Ordering Process

Cast steel gate valve: is one of the most commonly used cut-off valves, mainly used to connect or cut off the medium in the pipeline, not suitable for regulating the flow of medium. Cast steel gate valves are suitable for a wide range of pressure, temperature and caliber, especially for medium and large caliber pipes. Nominal dimension DN15~DN800, nominal pressure 1.6 MPa~20.0 MPa, sealing surface using asbestos graphite or flexible graphite, operating temperature<570, operating mode has manual, gear transmission, electric, pneumatic, etc., suitable for water, steam, oil medium pipeline.


Product features


1. the structure is compact, the design is reasonable, the valve rigidity is good, the passageway is fluent, and the flow resistance coefficient is small.


2. the sealing surface is stainless steel or hard alloy with long service life.


3. use asbestos graphite or flexible graphite, which is reliable and easy to operate.


4. Various pipe flange standards and flange sealing surface forms can be adopted to meet various engineering requirements and user requirements.


5. widely used in petroleum, chemical, hydraulic, thermal power plants of various systems of pipelines.


Z41H, Z41Y, Z41W PN16-PN200 steel wedge gate valves: manual, flange connection, open rod wedge rigid single gate plate, seat sealing surface material for stainless steel, nominal pressure PN16-PN200, valve body material for carbon steel (Z41H-16C Z41H-25 Z41Y-16C Z41H-25 Z41H-40-200), stainless steel (Z41W-16P Z41W-25P Z41Y-16P Z41Y-16P Z41Y-16P Z41Y-16P Z41Y-16P Z41Y-200) The gate valve of 25P Z41W-16R Z41W-25R Z41Y-16R Z41Y-25R Z41Y-25R Z41H-40P~200P Z41H-40R~200R, alloy steel Z41Y-25I Z41Y-16V Z41Y-25V Z41H-40I~200I.


Z41 gate valve is suitable for cutting off or connecting pipeline medium in various systems of petroleum, chemical, hydraulic and thermal power plants with working pressure of 1.6-20.0 MPa and working temperature of - 29 570. Suitable medium is water, oil, steam, acid, alkali, ammonia, urea, sour gas and so on.


Main performance parameters of cast steel gate valves


Main performance parameters of wedge gate valves made of Z41H, Z41Y and Z41W PN16~PN200 steel
Model
PN
MPa
Applicable medium
Z41H-16C、25
16、25
1.6、2.5
≤ 425
Water, steam and oil
Z41Y-16C、25
Z41W-16P、25P
16、25
1.6、2.5
≤ 150
Weak corrosive medium
Z41Y-16P、25P
Z41W-16R、25R
Z41Y-16R、25R
Z41Y-16I、25I
≤ 550
steam and oil
Z41Y-16V、25V
≤ 570
Water, steam and oil
Z41H-40~200
40~200
4.0~20.0
≤ 425
Water, steam and oil
Z41H-40I~200I
40~200
4.0~20.0
≤ 550
Water, steam and oil
Z41H-40P~200P
40~200
4.0~20.0
≤ 200
Nitric acid
Z41H-40R~200R
40~200
4.0~20.0
≤ 200
Nitric acid


Main material of cast steel gate valve


Z41H, Z41Y and Z41W type PN16~PN200 steel wedge valve components and materials
Model
Material Science
Body, bonnet, RAM
Stem
Sealing surface
filler
Z41H-16C、25
carbon steel
Chromium stainless steel
Hardfacing alloy
Asbestos graphite or flexible graphite
Z41Y-16C、25
Hardfacing alloy
Z41W-16P、25P
Cr Ni Ti stainless steel
Cr Ni Ti stainless steel
本体材料
Asbestos graphite or flexible graphite
Z41Y-16P、25P
Hardfacing alloy
Z41W-16R、25R
Cr Ni Ti stainless steel
Cr Ni Ti stainless steel
本体材料
Z41Y-16R、25R
Hardfacing alloy
Z41Y-16I、25I
chrome molybdenum steel
chrome molybdenum steel
Hardfacing alloy
Z41Y-16V、25V
CrMoV
CrMoV
Hardfacing alloy
Flexible graphite
Z41H-40~200
carbon steel
Chromium stainless steel
Carbon steel +Cr13 or hard alloy
Flexible graphite
Z41H-40I~200I
Chromium molybdenum steel
合金钢
Alloy steel + hard alloy
Flexible graphite
Z41H-40P~200P
Ci Ni Ti
Stainless steel
Stainless steel or stainless steel + hard alloy
Flexible graphite
Z41H-40R~200R
Ci Ni Mo Ti Steel
Stainless steel
Stainless steel or stainless steel + hard alloy
Flexible graphite


Main dimensions of cast steel gate valves


Main shape and structural dimensions of Z41H, Z41Y and Z41W PN16 steel wedge gate valves (mm)
DN
L
D
D1
D2
b
f
z×ød
H
D0
重量 / kg
15
130
95
65
45
14
2
4×ø14
175
200
4
20
150
105
75
55
14
2
4×ø14
180
200
5
25
160
115
85
65
14
2
4×ø14
210
200
6
32
180
135
100
78
16
2
4×ø18
210
200
7
40
200
145
110
85
16
3
4×ø18
350
200
19
50
250
160
125
100
16
3
4×ø18
358
240
29
65
265
180
145
120
18
3
4×ø18
375
240
33
80
280
195
160
135
20
3
8×ø18
433
280
45
100
300
215
180
155
20
3
8×ø18
502
320
63
125
325
245
210
185
22
3
8×ø18
612
360
108
150
350
280
240
210
24
3
8×ø23
676
360
134
200
400
335
295
265
26
3
12×ø23
820
400
192
250
450
405
355
320
30
3
12×ø25
969
450
273
300
500
460
410
375
30
4
12×ø25
1142
560
379
350
550
520
470
435
34
4
16×ø25
1280
640
590
400
600
580
525
485
36
4
16×ø30
1452
640
850
450
650
640
585
545
40
4
20×ø30
1541
720
907
500
700
705
650
608
44
4
20×ø34
1676
720
958
600
800
840
770
718
48
5
20×ø41
1874
800
1112



Main shape and structural dimensions of Z41H, Z41Y and Z41W PN25 steel wedge gate valves (mm)
DN
L
D
D1
D2
b
f
z×ød
H
D0
重量 / kg
15
130
95
65
45
16
2
4×ø14
175
200
4
20
150
105
75
55
16
2
4×ø14
180
200
5
25
160
115
85
65
16
2
4×ø14
210
220
6
32
180
135
100
78
18
2
4×ø18
210
220
7
40
200
145
110
85
18
3
4×ø18
350
220
18
50
250
160
125
100
20
3
4×ø18
358
250
25
65
265
180
145
120
22
3
8×ø18
373
280
35
80
280
195
160
135
22
3
8×ø18
435
300
50
100
300
230
190
160
24
3
8×ø23
500
350
65
125
325
270
220
188
28
3
8×ø25
614
400
100
150
350
300
250
218
30
3
8×ø25
674
450
135
200
400
360
310
278
34
3
12×ø25
818
500
180
250
450
425
370
332
36
3
12×ø30
969
550
207
300
500
485
430
390
40
4
16×ø30
530
560
400
350
550
550
490
448
44
4
16×ø34
1280
640
631
400
600
610
550
505
48
4
16×ø34
1450
640
900
450
650
660
600
555
50
4
20×ø34
1541
720
1013
500
700
730
660
610
52
4
20×ø41
1676
720
1166
600
800
840
770
718
56
5
20×ø41
1874
800
1258
700
900
955
875
815
60
5
24×ø48
2280
850
800
1000
1070
990
930
64
5
24×ø48
2420
900



Main shape and structural dimensions of Z41H, Z41Y, Z41W type PN40, PN63 steel wedge gate valves (mm)
DN
L
D
H
W
重量 / kg
50
250
160
685
250
30
175
30
65
280
180
705
250
41
200
300
42
80
310
195
780
250
48
210
350
51
100
350
230
805
300
78
250
400
80
125
400
270
890
350
112
295
400
125
150
450
300
945
350
152
340
1002
450
175
200
550
375
1100
400
200
405
1150
450
220
250
650
445
1350
450
300
470
500
320
300
750
510
1445
500
450
530
1528
650
490
350
850
570
1665
680
595
1792
700
400
950
655
1930
850
670
2180
920



Main shape and structural dimensions of Z41H, Z41Y and Z41W PN100 steel wedge gate valves (mm)
DN
L
D
H
W
重量 / kg
50
250
195
680
300
48
65
280
220
720
300
68
80
310
230
870
350
92
100
350
265
885
400
133
125
400
310
1020
450
216
150
450
350
1110
500
275
200
550
430
1225
500
360
250
650
500
1257
550
700



Main shape and structural dimensions of Z41H, Z41Y and Z41W PN160 steel wedge gate valves (mm)
DN
L
D
H
W
重量 / kg
65
340
245
820
350
110
80
390
260
850
350
145
100
450
300
980
400
192
125
525
355
1050
450
307



Main shape and structural dimensions of Z41H, Z41Y and Z41W PN200 steel wedge gate valves (mm)
DN
L
D
H
W
重量 / kg
50
350
210
712
350
108
65
410
260
765
400
195
80
470
290
835
450
250
100
550
360
950
500
350
125
650
385
1080
500
540
150
750
440
1140
600
738


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.Cast Steel Gate ValvePlease contact us at 4000-700-665 for details of performance, size and price.
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