Basic Info

Model No.: dn500

Standard: DIN, ANSI, GOST, ASME  B16.5,ASME/ANSI B16.36,ASME B16.47

Type: Welding Flange, ANSI B16.5 Carbon Steel Raised Face Blind Flanges

Material: Carbon Steel

Structure: Flanges

Connection: Welding

Sealing Surface: RF

Manufacturing Way: Forging

Certification: ISO.UKS.SGS.BV

Package: Wooden Boxes, Wooden Pallets

Brand Name: HAOYUAN

Crafts: Cold Extrusion, Thermoforming, Forging

Nominal Pressure: Class150-Class2500

Application: Water Conservancy, Electric Power, Power Station

Materials: A105,Q345,Q235...

Size: Dn500

Additional Info

Packaging: Wooden boxes, Wooden pallets

Productivity: 20T/Day

Brand: HAOYUAN

Transportation: Ocean,Land,Air

Place of Origin: CANGZHOU

Supply Ability: 500T/Month

Certificate: ISO

Product Description

Pipe Fittings Flange,Steel Flange, forged stainless Steel Flange,Weld Neck Flange, Slip on flange , Plate flange , Blind Flange

STAINLESS STEEL BLIND FLANGES MANUFACTURERS / CARBON STEEL BLIND FLANGES SUPPLIERS / ALLOY STEEL BLIND FLANGES EXPORTERS IN CHINA

ASME/ANSI B16.5 CARBON STEEL BLIND FLANGES, STAINLESS STEEL BLIND FLANGES, ALLOY STEEL BLIND FLANGES, 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 , STEEL RST37.2, C22.8 REDUCING FLANGES MANUFACTURER, EXPORTER & SUPPLIER IN CHINA

Blind Flange

A blind flange is a popular type of pipe flange. It has no bore in the middle, and is primarily used to close ends of piping systems. This flange permits easy access to a line once it has been sealed. It sometimes can be machined to accept a nominal sized pipe to which a threaded or welded reduction is being made. Ahad blind flanges are available in various sizes and materials for you to choose from. 

Size 
Blind flange 3/8"~80" 
DN10~DN2000

Lowest Price In China On Blind Flanges. High Quality Reducing Flange Like Class 150 Blind Flanges, Class 300 Blind Flanges, Class 600 Blind Flanges, Class 900 Blind Flanges, Class 1500 Blind Flanges & Class 2500 Blind Flanges Suppliers In China

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: Class 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.

Carbon Steel Blind Flanges: 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 (Spectacle Blind Flange, Spacer Ring/Spade Flange), Steel RST37.2, C22.8

Stainless Steel Blind Flanges: ASTM A182 F202, F304/304L/304H, F316/316L, F316H, F316TI, F310, F321, F904L
Alloy Steel Blind Flanges: ASTM A182 F1, F5, F9, F11, F22, F91

Special Alloy Blind Flanges: Duplex, Super Duplex, Nickel Alloys

Flange Face Type: Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

High-quality products

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.

Our packaging

Steel Flange Production Process                      

Steel Flange workshop

Production Process