Stainless Steel Blind Flange

Class 300 Blind Flange Manufacturers, Check Price List of Dn100 PN16 Blind Flange

Dinesh Industries is a manufacturer and supplier of stainless steel pipe fittings in different grades and scales. We manufacture flanges of all types as well.  Our Stainless Steel Blind Flange is used widely in applications where the pipeline has to be terminated. The blind end or the plate of the flange seals the connection so that the flow ends with the blind flange. As a leading Stainless steel blind flange manufacturer we supply these flanges in different types of stainless steels. The 304, 316 and duplex are some of the most commonly used materials for applications that use flanges.

Stainless Steel Blind Flange

View ASME B16.5 Blind Flange Dimensions & PN16 Blind Flange Pressure Rating & Sizes

Our SS blind plate flanges can therefore be made with any of these material grades depending on the application’s material grade. Also, there are standards to cover the different dimensions of the flanges. The SS blind flange ANSI /ASME B16.5 for example is a specification that covers the flanges ranging from ½ inches in nominal size to 24 inches. Likewise, there are other specifications that cover different SS blind flange dimensions for different purposes. We produce flanges with international quality standards and test them before supplies. We are also a stockiest of the SS blind flange en 1092-1 and other types. Please contact us for more product information and supplies.

Specification Format of Stainless Steel Blind Flange

Size  1/2″ (15 NB) to 48″ (1200NB)
Standards  ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings.
Pressure Ratings PN6, PN10, PN16, PN25, PN40, PN64 etc.
Pressure class  150#, 300#, 600#, 1500#
Dimensions and Pressure Ratings for Blind Flanges Table D, E, F, & H, MSS- SP-44, BS3293, ANSI, BS4504, PN6, 10, 16, 25, 64 BS10, DIN Standards
Flange Face Type Raised Face (RF), Flate Face (FF), Ring Type Joint (RTJ)
Coating/Surface Treatment Yellow Transparent, Anti-rust Paint, Oil Black Paint, Zinc Plated, Cold and Hot Dip Galvanized.

ASME B16.5 Blind flange can be inserted between two open flanges and used to block off the flow of liquid through a pipeline. Blind flange has no opening to allow fluid to pass through.

Dimensions of Class 300 Blind Flange

Pipe Normal Diam.
O.D. Flange
Thk. Of Flange Min
Diameter of Raised Face
Diam.of BoltCircle
Diam.of BoltHoles
Numberof Bolts
Diam. ofBolts(inch)
Approx. Weight
inch
dn
O
C
G
BC
BH
BN
BD
KG/PCS
LB/PCS
1/2″
15
95.5
14.2
35.1
66.5
15.7
4
1/2″
0.8
1.8
3/4″
20
117. 5
15.7
42.9
82.6
19.1
4
5/8″
1.2
2.6
1″
25
124. 0
17.5
50.8
88.9
19.1
4
5/8″
1.5
3.3
1-1/4″
32
133. 5
19.1
63.5
98.6
19.1
4
5/8″
2
4.4
1-1/2″
40
155. 5
20.6
73.2
114.3
22.4
4
5/8″
2.9
6.4
2″
50
165. 0
22.4
91.9
127
19.1
8
5/8″
3.5
7.7
2-1/2″
65
190. 5
25.4
104.6
149.4
22.4
8
3/4″
5.3
11.7
3″
80
209. 5
28.4
127
168.1
22.4
8
3/4″
7.2
15.9
3-1/2″
90
228. 5
30.2
139.7
184.2
22.4
8
3/4″
9.2
20.3
4″
100
254. 0
31.8
157.2
200.2
22.4
8
3/4″
12.2
26.8
5″
125
279. 5
35.1
185.7
235
22.4
8
3/4″
16
35.2
6″
150
317. 5
36.6
215.9
269.7
22.4
12
3/4″
22
48.4
8″
200
381. 0
41.1
269.7
330.2
25.4
12
7/8″
36
79.5
10″
250
444. 5
47.8
323.9
387.4
28.4
16
1″
55
121
12″
300
520. 5
50.8
381
450.9
31.8
16
1 1/8″
82.5
182
14″
350
584. 0
53.8
412.8
514..4
31.8
20
1 1/8″
108
238
16″
400
647. 5
57.2
469.9
571.5
35.1
20
1 1/4″
139
306
18″
450
711. 0
60.5
533.4
628.7
35.1
24
1 1/4″
178
392
20″
500
774. 5
63.5
584.2
685.8
35.1
24
1 1/4″
228
503
24″
600
914. 5
69.9
692.2
812.8
41.1
24
1 1/2″
350
772

Material of Blind Flange

Stainless Steel  ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Carbon Steel & Alloy Steel  ASTM A105/A105N, A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46, F48, F50, F52, F56, F60, F65, F70, A516.60, 65, 70, ASTM A182 F1, F5, F9, F11, F22, F91
High Nickel Alloys  Inconel 600, Inconel 601, Inconel 625, Inconel 718, Inconel 783, Inconel 690, Inconel x750, Hastelloy C276, Hastelloy C22, Monel 400, Monel K500, Nickel 200, Nickel 201, Duplex Steel, Super Duplex Steel, Titanium Gr. 1, Titanium Gr.
2, Titanium Gr. 4, Titanium Gr. 5, Titanium Gr. 7, Copper Nickel 90/10, Copper Nickel 70/30, Alloy 20, Incoloy 800, Incoloy 800H, Incoloy 800HT, Incoloy 825, SMO 254

Tolerances Of Carbon Steel Blind Flange

Outside Diameter ≤ 24 = 1.6 mm | > 24 = ± 3.2 mm Inside Diameter not applicable
Diameter of Contact Face 1.6 mm Raised Face = ± 0.8 mm6.35 mm Raised Face, Tongue & Groove / Male-Female = ± 0.4 mm Outside Diameter of Hub ≤ 12 = + 2.4 mm / – 1.6 mm | ≥ 14 = ± 3.2 mm
Diameter of Counterbore not applicable Drilling Bolt Circle = 1.6 mm | Bolt Hole Spacing = ± 0.8 mmEccentricity of Bolt Circle with Respect to Facing≤ 2½ = 0.8 mm max. | ≥ 3 = 1.6 mm max.
Thickness ≤ 18 = + 3.2 mm / – 0 | ≥ 20 = + 4.8 mm / – 0 Length thru Hub ≤ 18 = + 3.2 mm / – 0.8 mm | ≥ 20 = + 4.8 mm / – 1.6 mm