ASME/ANSI B16.5 & B16.47 Blind Flange

Carbon Steel Blind Flange, Stainless Steel Blind Flange, Alloy Steel Blind Flange Manufacturer In China

Cangzhou Taichang Pipeline Equipment Co,. LTD is a specialised manufacturer of high qualty ASME/ANSI/DIN industrial blind flanges in China. We offer immediate delivery programs for standard size of carbon steel blind flanges and stainless steel blind flanges. Plate blind flanges manufactured in special stainless steel grades, nickel alloy and alloy steel can be supplied with just in time programs.
Commonly referred as blanking fanges Blind pipe flanges are widely used in high pressure applications. Blind flanges are generaly used to seal the end of a piping system to prevent flow of liquids or gases. The use of blind flanges allows ease of acess to a piping system once it has been closed.
Our blind flanges are available with raised or RJT faces and also with female threads Blind flanges can be supplied with or without hubas per the customer requirements.
We offer blind plate flanges manufactured at our facility to companies in various industries including shipbuilding, power generation,petrochemical plants, oil refineries, waste water treatment plants, paper mills, pharmaceutical plants and turnkey projects among others.

Carbon Steel And Stainless Steel Blind Flange

Specification Chart Of  Blind Flange

Blind Pipe Flanges Standards ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Blind Flange Size 1/2″ (15 NB) to 48″ (1200NB)
ASME Flange Pressure Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS
JIS Flange Pressure 5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
EN/DIN Flange Pressure 6Bar 10Bar 16Bar 25Bar 40Bar,
PN6, PN10, PN16, PN25, PN40
Coating Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Blind Flange
Connect Type/ Flange Face Type Flat Face Blind Flange(BLFF), Raised Face Blind Flange(BLRF), Ring Type Joint Blind Flange(BLRTJ),
Value added service CNC Machining, Customised Flanges
Production technique Forged, Heat treated and machined
Uses & application Petrochemicals and acids. Heavy oil refineries. Nuclear power (mostly seamless).
Bitumen upgraders.

Connect Type/ Flange Face Type


Raised Face Blind Flange(BLRF)


Ring Joint Type Blind Flange(BLRTJ)


Flat Face Blind Flange(BLFF)

Carbon Steel And Stainless Steel Blind Flange

Blind Flange

Blind Flange Illustration

Blind Flange Material Grades

Stainless Steel Blind Flange: ASTM A182 F202 F304/304L/304H, F316 /316L F316H F316T1, F310, F321,F904L
Carbon Steel Blind Flange: ASTM A105/A105N, A350 LF, LF2 CL1/CL2, LF3 CL1/CL2, A694 F42, F46,F48,F50, F52, F56, F60, F65,F70.A516.60, 65, 70
Alloy Steel Blind Flange: ASTM A182 F1, F5, F9,F11, F22, F91
Duplex Steel Blind Flange: Duplex, Super Duplex, Nickel Alloys

Blind Flange Process Flow Chart

Marking & Packing

Products are packaged to ensure that there is no damage during transit. In case of exports, standard export packaging is done in wooden cases. All elbow fitings are marked with Grade, heat No. , Size, Degree and our trade mark. On special requests we can also make custom marking on our products.

Quality Assurance

In Taichang all fittings and flanges are subiect to strict inspection at each stage of the production process from starting material purchasing to product dispatch. They are visually examined for conformity to ASTM ASME MSS DIN EN and JIS codes and standards. Upon request, official certified inspection Agencies can be called in to witness the material reports dimensions and quality conformity of products.

Test reports

Manufacturer Test Certificate as per EN 10204 / 3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third
Party Inspection Report