Across the pond, you will find the Deutsches Institute fur Normung (DIN) flange specification, consisting of a variety of European styles which have been unified into one code for the purpose of commonality. Designation as a Din Flange by the German Institute of Standardization assures the user of design quality the way an ASME flange would here in America. Although much less common than ANSI/ASME Steel Flanges in the United States, many of our international customers request flanges to these specifications for a variety of applications such as imported steel vessels, cargo ships, and other infrastructure which may consist of metric pipes/valves and European designed equipment.
The subset flanges under the DIN standard consist of the same style of flanges in the United States, including the most commonly used slip on flanges, weld neck, flanges, and Blind Flanges. Adapter flanges can be custom made to end user requirements for the mating of American flanges to international ones, however we find it is a much more common and easy solution to provide DIN flanges to mate to existing equipment.
The most common metric type flanges fall under the following categories:
DIN 2501 through 2503 for flat ring flanges
DIN 2512 through 2519 for alternate face flanges
DIN 2627 through 2633 for weld neck flanges
DIN 2641 through 2642 for lap joint flanges
DIN 2565 through 2569 for threaded/companion flanges
DIN 2527 for blind flanges
Threaded Flange,Pn25 Thr Flange,Din Thr Flanges,Din Threaded Flange Hebei Welkin Pipe Fitting Manufacturing Co., Ltd , https://www.welkinpipeline.com
DA is used for handling clear water or the liquids similar to the water physically and chemically
THE working diameter is 50mm, each model of our product has 4-5 impellers with different sizes, the rotation speed is 1450rpm, 1750rpm, 2900rpm, 3500rpm for optional. This circulation for agriculture irrigation ,sewage treatment and other fields.
Product Picture
Technical ParametersÂ
Model
Capacity
Head
Rotation
 SpeedFrequency
Power
Efficiency
Impeller
 Dia.Diameter
Shaft
Inlet
Outlet
m3/h
L/s
m
r/min
hz
kw
%
mm
mm
mm
DA40/20
8.7Â
2.42Â
15.5
1450
50
0.77Â
48
214
65
40
14.5Â
4.03Â
14.3
0.99Â
57
17.4Â
4.84Â
13.2
1.09Â
57.5
18.0Â
5.00Â
61.5
2900
50
6.28Â
48
30.0Â
8.33Â
56.5
7.95Â
58
36.0Â
10.00Â
53.0
8.88Â
58.5
8.7Â
2.92Â
22.6
1750
60
1.11Â
48
14.5Â
4.86Â
20.8
1.44Â
57
17.4Â
5.84Â
19.2
1.58Â
57.5
21.7Â
6.03Â
89.6
3500
60
11.03Â
48
36.2Â
10.05Â
82.3
13.98Â
58
43.4Â
12.06Â
77.2
15.60Â
58.5
DA40/20A
8.3Â
2.32Â
14.0
1450
50
0.66Â
48
205
65
40
13.9Â
3.86Â
13.0
0.88Â
56
16.7Â
4.63Â
12.0
0.96Â
57
17.2Â
4.79Â
55.4
2900
50
5.42Â
48
28.7Â
7.98Â
51.0
6.94Â
57.5
34.5Â
9.58Â
47.3
7.65Â
58
8.3Â
2.80Â
20.4
1750
60
0.96Â
48
13.9Â
4.66Â
18.9
1.28Â
56
16.7Â
5.59Â
17.5
1.39Â
57
20.8Â
5.78Â
80.7
3500
60
9.52Â
48
34.7Â
9.63Â
74.3
12.19Â
57.5
41.6Â
11.56Â
68.9
13.45Â
58
DA40/20B
7.9Â
2.20Â
12.7
1450
50
0.60Â
46
195
65
40
13.2Â
3.67Â
11.6
0.76Â
55
15.9Â
4.41Â
10.8
0.84Â
55.5
16.4Â
4.55Â
49.5
2900
50
4.70Â
47
27.3Â
7.59Â
47.5
6.25Â
56.5
32.8Â
9.11Â
42.0
6.58Â
57
7.9Â
2.66Â
18.5
1750
60
0.87Â
46
13.2Â
4.43Â
16.9
1.11Â
55
15.9Â
5.32Â
15.7
1.22Â
55.5
19.8Â
5.50Â
72.1
3500
60
8.26Â
47
33.0Â
9.16Â
69.2
10.99Â
56.5
39.6Â
10.99Â
61.2
11.56Â
57
DA40/20C
7.5Â
2.09Â
11.2
1450
50
0.50Â
45.5
185
65
40
12.5Â
3.48Â
10.4
0.66Â
54
15.1Â
4.18Â
9.6
0.72Â
54.5
15.6Â
4.32Â
44.6
2900
50
4.10Â
46
25.9Â
7.20Â
40.5
5.15Â
55.5
31.1Â
8.64Â
36.5
5.62Â
55
7.5Â
2.52Â
16.3
1750
60
0.73Â
45.5
12.5Â
4.20Â
15.2
0.96Â
54
15.1Â
5.05Â
14.0
1.05Â
54.5
18.8Â
5.21Â
64.9
3500
60
7.21Â
46
31.3Â
8.69Â
59.0
9.05Â
55.5
37.5Â
10.43Â
53.2
9.88Â
55
DA40/20D
7.1Â
1.98Â
10.0
1450
50
0.44Â
44
175
65
40
11.9Â
3.30Â
9.2
0.56Â
53
14.2Â
3.95Â
8.4
0.61Â
53.5
14.7Â
4.09Â
39.9
2900
50
Diesel Engine Driven End Suction Centrifugal Water Pump
Model NO.: DA40/20
Position of Pump Shaft: Horizontal Pump
Pump Casing Combined: Centrifugal Pump
Mounting Height: Since Irrigation Centrifugal Pumps
Impeller: Closed
Usage: Pump, Pumps, Circulating Pump, Irrigation Pump
Theory: Centrifugal Pump
Pump Material: Stainless Steel or Cast Iron
Impeller Material: Stainless Steel or Cast Iron
Seal Type: Mechanical Seal or Packing Seal
Coupling: Directly Coupling
Coupling Type: High Elastic Coupling or Pin Pin Coupling
Rotation Speed: 1450/1750/2900/3500rpm
Engine Type: Water Cooler Engine or Air Cooler Engine
Pump Accessories: Trailer, Silence-Box, Control Panel, Fuel Tank,etc
Pump Spare Parts: Pump Casing, Impeller, Seal, Coupling, Bearing,etc
Trademark: Y&L
Transport Package: Standard Plywood Case
Specification: 40mm
Origin: Shanghai, China
HS Code: 8413709990
Model NO.: DA40/20
Position of Pump Shaft: Horizontal Pump
Pump Casing Combined: Centrifugal Pump
Mounting Height: Since Irrigation Centrifugal Pumps
Impeller: Closed
Usage: Pump, Pumps, Circulating Pump, Irrigation Pump
Theory: Centrifugal Pump
Pump Material: Stainless Steel or Cast Iron
Impeller Material: Stainless Steel or Cast Iron
Seal Type: Mechanical Seal or Packing Seal
Coupling: Directly Coupling
Coupling Type: High Elastic Coupling or Pin Pin Coupling
Rotation Speed: 1450/1750/2900/3500rpm
Engine Type: Water Cooler Engine or Air Cooler Engine
Pump Accessories: Trailer, Silence-Box, Control Panel, Fuel Tank,etc
Pump Spare Parts: Pump Casing, Impeller, Seal, Coupling, Bearing,etc
Trademark: Y&L
Transport Package: Standard Plywood Case
Specification: 40mm
Origin: Shanghai, China
HS Code: 8413709990
Diesel Engine Driven End Suction Centrifugal Water Pump