ASME B16.48/ASTM A516gr. 70 Spectacle Blind 300# RF Flange

1. What's blind flange usage

Blind flange is used to close ends of piping systems. It is a kind of round plate with no center hold but with all the proper bolt holes. This blind flange is available in various sizes and materials and is used to provide positive closer on the ends of pipes, valves or equipment nozzles. This flange helps in easy access to A Line once it has been sealed. The blind flange is sometimes custom made or machined to accept a nominal sized pipe to which reduction is being made. This reduction can be a threaded reduction or welded reduction.

2. Features of blind flanges: Some important features of blind flanges are as follows:
Blind flanges are sometimes supplied with NPT fittings which allow pressure test connections to be fitted.
They are used to blank off the ends of pipe.
They are also used to blank off the ends of valves and pressure vessel opening.
Considering factors like internal pressure and bolt loading, blind flanges, especially in the larger sizes, are the most highly stressed of all types of flanges.
Since the maximum stresses in a blind flange are bending stresses at the center, they can safely be allowed to be higher than in other types of flanges.
Blind flanges are made to fit standard pipes in all sizes.
3. Blind flange material

Stainless Steel: ASTM A 182, A 240
Grade: F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L, Duplex stainless steel UNS S31803, 2205, Super Duplex stainless steel UNS S32750
Carbon Steel: ASTM A 105, ASTM A 181
Alloy Steel: ASTM A 182, GR F1, F11, F22, F5, F9, F91
Nickel Alloys: Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22, C276
Copper Alloys: Copper, Brass & Gunmetal
Size: 1/8" NB TO 48"NB.
Class: 150#, 300#, 400 #, 600#, 900#, 1500# & 2500 #.

4. Blind flange 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
B. S: BS4504, BS4504, BS1560, BS10


Contact: Ms abby
Hebei Shengtian Pipe-Fitting Group Co., Ltd.
Office address: 1605, Yihe Tower, Cangzhou, Hebei, China
Factory address: Xiwang new district-Mengcun county-Hebei province-China
TEL: 0086-0317-5298199
FAX: 0086-0317-5295979
MOBILE: 0086-18631702046
Web Site: http://www.stpipefitting.com 1. What's blind flange usage

Blind flange is used to close ends of piping systems. It is a kind of round plate with no center hold but with all the proper bolt holes. This blind flange is available in various sizes and materials and is used to provide positive closer on the ends of pipes, valves or equipment nozzles. This flange helps in easy access to A Line once it has been sealed. The blind flange is sometimes custom made or machined to accept a nominal sized pipe to which reduction is being made. This reduction can be a threaded reduction or welded reduction.

2. Features of blind flanges: Some important features of blind flanges are as follows:
Blind flanges are sometimes supplied with NPT fittings which allow pressure test connections to be fitted.
They are used to blank off the ends of pipe.
They are also used to blank off the ends of valves and pressure vessel opening.
Considering factors like internal pressure and bolt loading, blind flanges, especially in the larger sizes, are the most highly stressed of all types of flanges.
Since the maximum stresses in a blind flange are bending stresses at the center, they can safely be allowed to be higher than in other types of flanges.
Blind flanges are made to fit standard pipes in all sizes.
3. Blind flange material

Stainless Steel: ASTM A 182, A 240
Grade: F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L, Duplex stainless steel UNS S31803, 2205, Super Duplex stainless steel UNS S32750
Carbon Steel: ASTM A 105, ASTM A 181
Alloy Steel: ASTM A 182, GR F1, F11, F22, F5, F9, F91
Nickel Alloys: Monel 400 & 500, Inconel 600 & 625, Incolloy 800, 825, Hastelloy C22, C276
Copper Alloys: Copper, Brass & Gunmetal
Size: 1/8" NB TO 48"NB.
Class: 150#, 300#, 400 #, 600#, 900#, 1500# & 2500 #.

4. Blind flange 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
B. S: BS4504, BS4504, BS1560, BS10


Contact: Ms abby
Hebei Shengtian Pipe-fitting Group Co., Ltd.
Office address: 1605, Yihe Tower, Cangzhou, Hebei, China
Factory address: Xiwang new district-Mengcun county-Hebei province-China
TEL: 0086-0317-5298199
FAX: 0086-0317-5295979
MOBILE: 0086-18631702046
Web Site: http://www.stpipefitting.com

Coupling for High Pressure Cleaning Machine with Brass, Stainless Steel, Iron material. Fittings include welding, card sets and flared,
Male Coupling Connector Type:
End through connector, straight connectors, tees, elbows, with live nut joints, Swivel joints, plug, transition joints
Composed of dual ferrule fittings: Before the snap ring, after the snap ring nut
Materials commonly used are stainless steel and carbon steel
NPT, PT, G is the pipe thread.
NPT is National (American) Pipe Thread abbreviation belong American standard tapered pipe thread 60 degree, for North America. National standards can be found GB / T12716-1991
Pipe Thread PT is an abbreviation, is 55 degrees sealing cone pipe thread, is a Whitworth thread family, more for Europe and the Commonwealth countries. Commonly used in water and gas pipe industry, defined as 1:16 taper. National standards can be found GB / T7306-2000
G is 55 degrees non-thread sealing pipe thread, is a Whitworth thread family. G represents a threaded barrel mark. National standards can be found GB / T7307-2001
Also thread 1 / 4,1 / 2,1 / 8 mark refers to the thread diameter in inches.
Insiders usually points to refer to the thread size, one inch equals 8 points, 1/4-inch is 2 points, and so on.
G is the pipe thread collectively (Guan), divided into 55, 60 degrees are functional, commonly known as a round tube. That thread processing is made by a cylindrical surface.
ZG commonly known as the funnel, that thread processing by a conical surface made of pipe joints in general are like this, the old domestic thread standard male thread Rc labeled as R

Fitting

Male Coupling,Brass Male Fitting,45 Degree Brass Couplers,Stainless Steel Coupling

NINGBO HAISHU OMWAY MACHINERY FACTORY (OMW Industrial) , http://www.omwindustrial.com