Blind flange BL RF flange

Basic Info

Model No.: HZ-E-BL FLANGE

Standard: DIN, GB

Type: Welding Flange

Material: Carbon Steel

Structure: Round

Connection: Flanged

Sealing Surface: RF

Manufacturing Way: Forging

Size: 6 Inch

Class: 300

Additional Info

Packaging: Wooden Cases or Pallets

Productivity: 1000 Pieces per Week

Brand: HZ

Transportation: Ocean,Land,Air

Place of Origin: China

Supply Ability: 2000 Metric Ton per Month

Certificate: ISO 9001

Port: Tianjin Port

Product Description

We manufacture the forged steel part & flanges according to all kinds of standards in the world,Blind flange BL RF flange the main standards include American Standard(ANSI/MSS/AWWA), German Standard(DIN),Japanese Standard(JIS),British standard(BS), European standard(EN1092-1) ,etc. 

ansi b16.5 RTJ blind flange The size range is from 1/2" to 72". We can make forging parts and flanges with carbon steel, stainless steel,duplex steel and other alloy steels. We can also make forging & flanges based on the drawings and samples.

Class 150 to 2500 Blind flanges Iterm:Welding Neck Flange,Plate Flange,Slip on flange,Blind Flange,Threaded Flange,Socket Welding Flange

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.

Material
Carbon steel:ASTM A105. ASTM A350 LF1. LF2, CL1/CL2, A234, S235JRG2, P245GH 
                         P250GH, P280GHM 16MN, 20MN ,20# 
Stainless steel:ASTM A182, F304/304L, F316/316L
Alloy steel:ASTM A182 A182 F12,F11,F22,F5,F9,F91etc.
Standard :ANSIClass 150 Flanges-Class 2500 Flanges
                    DIN6Bar 10Bar 16Bar 25Bar 40Bar
                    JIS5K Flanges-20K Flanges
                    UNI6Bar 10Bar 16Bar 25Bar 40Bar
                    EN6Bar 10Bar 16Bar 25Bar 40Bar

DIN Standard Blind Flange Production process

Pictures of blind flange

Certificate of blind flange