A blind Flange is a solid steel plate without holes. It is used to terminate the end of a piping system. It may be used for isolating a pipe, valve, or pressure vessel. Because it is bolted, the blind flange provides easy access to the interior of a vessel or pipe. A blind flange can replace a butt weld cap in case an extension of the piping line is required, or in case a piping inspection is required.
Many blind flanges have a basic structure that, unlike other flanges, requires little machining and is heavy because it has no holes. This type of flange is solid with no bore and can have a flat face(FF) or raised face(RF).
Blind flanges are commonly used in petrochemicals, pipe engineering, public services, and water works.
Introduction
|
Standard |
ANSI： ANSI B16.5、ANSI B16.47、MSS SP44、ANSI B16.36、ANSI B16.48 DIN： DIN2527、DIN2566、DIN2573、DIN2576、DIN2641、DIN2642、DIN2655、DIN2656、DIN2627、DIN2628、DIN2629、DIN 2631、DIN2632、DIN2633、DIN2634、DIN2635、DIN2636、 DIN2637、DIN2638、DIN2673 BS： BS4504、BS4504、BS1560、BS10 |
|
Material |
Stainless Steel, Carbon Steel, Alloy Steel, Cupro Nickel (90/10, 70/30, 66/30/2/2), Hastelloy (C-4, C-22, C276, B-2), Nickel (200 / 201), Monel (400 & K500), Inconel (600, 601, 625 & 825), Incolloy (800, 800H), Alloy 20, Duplex Steel, SS 904L, Titanium (1 & 2) Etc. |
|
Surface |
Anti-rust oil, black paint, yellow paint, zinc plating, hot-dip galvanizing, electro-galvanizing, epoxy coating |
|
Type |
Forging, casting, CNC cutting |
|
size |
1/2" to 60", DN15 to DN1500 |
|
Delivery time |
Within 5-30 days after receiving the prepaid |
|
Packing |
Plywood Pallet, Wooden Pallet, Wooden Case, etc. |
|
Application |
Blind flanges are commonly used in petrochemicals, pipe engineering, public services, and water works. |
|
DN |
D |
K |
L |
No HOLES |
BOLT |
e |
d |
C |
|
10 |
75 |
50 |
11 |
4 |
M10 |
2 |
35 |
12 |
|
15 |
80 |
55 |
11 |
4 |
M10 |
2 |
40 |
12 |
|
20 |
90 |
65 |
11 |
4 |
M10 |
2 |
50 |
14 |
|
25 |
100 |
75 |
11 |
4 |
M10 |
2 |
60 |
14 |
|
32 |
120 |
90 |
14 |
4 |
M12 |
2 |
70 |
14 |
|
40 |
130 |
100 |
14 |
4 |
M12 |
3 |
80 |
14 |
|
50 |
140 |
110 |
14 |
4 |
M12 |
3 |
90 |
14 |
|
65 |
160 |
130 |
14 |
4 |
M12 |
3 |
110 |
14 |
|
80 |
190 |
150 |
18 |
4 |
M16 |
3 |
128 |
16 |
|
100 |
210 |
170 |
18 |
4 |
M16 |
3 |
148 |
16 |
|
125 |
240 |
200 |
18 |
8 |
M16 |
3 |
178 |
18 |
|
150 |
265 |
225 |
18 |
8 |
M16 |
3 |
202 |
18 |
|
200 |
320 |
280 |
18 |
8 |
M16 |
3 |
258 |
20 |
|
250 |
375 |
335 |
18 |
12 |
M16 |
3 |
312 |
22 |
|
300 |
440 |
395 |
22 |
12 |
M20 |
4 |
365 |
22 |
|
350 |
490 |
445 |
22 |
12 |
M20 |
4 |
415 |
22 |
|
400 |
540 |
495 |
22 |
16 |
M20 |
4 |
465 |
22 |
|
450 |
595 |
550 |
22 |
16 |
M20 |
4 |
520 |
24 |
|
500 |
645 |
600 |
22 |
20 |
M20 |
4 |
570 |
24 |
|
600 |
755 |
705 |
26 |
20 |
M24 |
5 |
670 |
30 |
|
700 |
860 |
810 |
26 |
24 |
M24 |
5 |
775 |
40 |
|
800 |
975 |
920 |
30 |
24 |
M27 |
5 |
880 |
44 |
|
900 |
1075 |
1020 |
30 |
24 |
M27 |
5 |
980 |
48 |
|
1000 |
1175 |
1120 |
30 |
28 |
M227 |
5 |
1080 |
52 |
|
1200 |
1405 |
1340 |
33 |
32 |
M30 |
5 |
1295 |
60 |
|
1400 |
1630 |
1560 |
36 |
36 |
M33 |
5 |
1510 |
68 |
|
1600 |
1830 |
1760 |
36 |
40 |
M33 |
5 |
1710 |
76 |
|
1800 |
2045 |
1970 |
39 |
44 |
M36 |
5 |
1920 |
84 |
|
2000 |
2265 |
2180 |
42 |
48 |
M39 |
5 |
2125 |
92 |
Blind Flanges-PN10
|
DN |
D |
K |
L |
No HOLES |
BOLT |
e |
d |
C |
|
10 |
90 |
60 |
14 |
4 |
M12 |
2 |
40 |
16 |
|
15 |
95 |
65 |
14 |
4 |
M12 |
2 |
45 |
16 |
|
20 |
105 |
75 |
14 |
4 |
M12 |
2 |
58 |
18 |
|
25 |
115 |
85 |
14 |
4 |
M12 |
2 |
68 |
18 |
|
32 |
140 |
100 |
18 |
4 |
M16 |
2 |
78 |
18 |
|
40 |
150 |
110 |
18 |
4 |
M16 |
3 |
88 |
18 |
|
50 |
165 |
125 |
18 |
4 |
M16 |
3 |
102 |
18 |
|
65 |
185 |
145 |
18 |
8 |
M16 |
3 |
122 |
18 |
|
80 |
200 |
160 |
18 |
8 |
M16 |
3 |
138 |
20 |
|
100 |
220 |
180 |
18 |
8 |
M16 |
3 |
158 |
20 |
|
125 |
250 |
210 |
18 |
8 |
M16 |
3 |
188 |
22 |
|
150 |
285 |
240 |
22 |
8 |
M20 |
3 |
212 |
22 |
|
200 |
340 |
295 |
22 |
8 |
M20 |
3 |
268 |
24 |
|
250 |
395 |
350 |
22 |
12 |
M20 |
3 |
320 |
26 |
|
300 |
445 |
400 |
22 |
12 |
M20 |
4 |
370 |
26 |
|
350 |
505 |
460 |
22 |
16 |
M20 |
4 |
430 |
26 |
|
400 |
565 |
515 |
26 |
16 |
M24 |
4 |
482 |
26 |
|
450 |
615 |
565 |
26 |
20 |
M24 |
4 |
532 |
28 |
|
500 |
670 |
620 |
26 |
20 |
M24 |
4 |
585 |
28 |
|
600 |
780 |
725 |
30 |
20 |
M27 |
5 |
685 |
34 |
|
700 |
895 |
840 |
30 |
24 |
M27 |
5 |
800 |
38 |
|
800 |
1015 |
950 |
33 |
24 |
M30 |
5 |
905 |
42 |
|
900 |
1115 |
1050 |
33 |
28 |
M30 |
5 |
1005 |
46 |
|
1000 |
1230 |
1160 |
36 |
28 |
M33 |
5 |
1110 |
52 |
|
1200 |
1455 |
1380 |
39 |
32 |
M36 |
5 |
1330 |
60 |
Xinhang Special Material Co., Ltd. Hangzhou Branch is famous China Stainless Steel Pipe Blind Flange Fittings Used For Isolating A Pipe suppliers and OEM/ODM Stainless Steel Pipe Blind Flange Fittings Used For Isolating A Pipe manufacturers, founded in 2007 and moved to Longyou Economic Development Zone, Zhejiang Province, in 2022. It covers an area of 130,000 square meters, more than 30 production lines, 300 workers, 20 R&D people, 30 inspection people and an annual output of 50,000 tons.
It has passed ISO9001:2008 quality management system, PED 97/23/EC EU Pressure Equipment Directive certification, China Special Equipment Manufacturing License (Pressure Tube) TS certification, ASME certification, provincial enterprise standardization management system, ISO14000:2004 environment management system, cleaner production (green enterprise), and a series of certifications, as well as China Classification Society (CCS), American Bureau of Shipping (ABS), British Register of Shipping (LR), Deutsche Veritas (GL), Bureau Veritas Society (BV), Det Norske Veritas (DNV), and Korean Register of Shipping (KR) factory certification.
The main products include stainless steel pipes, pipe fittings, flanges, valves, etc., which are widely used in petroleum, chemical industry, nuclear industry, smelting, shipbuilding, pharmaceuticals, food, water conservancy, electric power, new energy, mechanical equipment, and other fields. The company adheres to the corporate tenet of "quality for survival, reputation for development" and wholeheartedly serves every customer to create a win-win situation.
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