Which standards do your pipe fittings and flanges comply with?

We manufacture to ASME B16.5, ASME B16.47, ASME B16.36, ASME B16.9, ASME B16.11, MSS SP-97, EN 1092-1, BS 10, DIN, JIS, ISO and API standards, with materials certified to the relevant ASTM / ASME specifications such as ASTM A182, A105, A234, A403, A350 and A420.

Do you supply mill test certificates with every order?

Yes. Every shipment is supplied with EN 10204 3.1 mill test certificates, and each piece is marked with its heat number so chemistry and mechanical properties can be traced back to the original melt. Third-party inspection by the buyer's nominated agency can be arranged on request.

Which materials do you keep in ready stock?

We hold ready stock in stainless steel (304, 304L, 316, 316L, 904L), duplex and super duplex, carbon steel (A105, A234 WPB, A350 LF2), alloy steel (F11, F22, WP11, WP22) and nickel alloys including Inconel, Hastelloy, Monel and Incoloy, as well as titanium grades.

Can you manufacture custom or non-standard piping components?

Yes. We produce custom-made piping connections to customer drawings, including sizes larger than 4 inch, special bores, non-standard pressure classes and open die forgings.

What fastener sizes and grades can you produce?

We produce high tensile bolts and nuts from M20 to M72 in metric and 3/4 inch to 3 inch in UNC, in property classes 8.8, 10.9 and 12.9, as well as ASTM A193 B6, B7, B8, B8M stud bolts and ASTM A194 2H heavy hex nuts.

Which countries do you export pipe fittings and flanges to?

Our main export markets include the UAE, Saudi Arabia, Qatar, Oman, Turkey, Egypt, Malaysia, Indonesia, the Philippines and Singapore, with sales representation in Poland, Italy, the UK, the USA and other countries.

BL Flange Raising Face ANSI B16.5 Class 300 Forged Flange Blind Flange Black Painting

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BL Flange Raising Face ANSI B16.5 Class 300 Forged Flange Blind Flange Black Painting

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Product Description

Introduction of Flange

Application

Used for the connection between the tube end in chemical, construction, water supply, drainage, light and heavy industrial, refrigeration, sanitation, plumbing, fire protection, electrical, aerospace, shipbuilding, and other infrastructure projects.

Types

Welding Neck (WN), Plate (PL), Slip On (SO), Blind (BL), Socket Welding (SW), Threaded (THc), Lap Joint (LJ), Long Welding Neck (LWN).

Widely Used Material for Plate Flange

Stainless Steel: A182 F304 / 310 / 316 / 317 / 321 / 347
Carbon Steel: A105
Alloy Steel: A182 F5 / F9 / F11 / F22 / F51 / F53, INCONEL 600 / 625 / 825

Common Flange Standards

NO.	FLANGE STANDARD	SIZE	PRESSURE RATING	TYPES
1	ANSI/ASME FLANGE B16.5	1/2" - 24"	LBS: 150, 300, 400, 600, 900, 1500, 2500	SO, WN, SW, TH, LJ, BL
2	ORIFICE FLANGE B16.36	1" - 24"	LBS: 300, 400, 600, 900, 1500, 2500	SO, WN, TH
3	LONG WELDING NECK FLANGES B16.5	1/2" - 24"	LBS: 150, 300, 400, 600, 900, 1500, 2500	LWN
4	ASME B16.47-A (MSS FLANGE)	26" - 60"	LBS: 150, 300, 400, 600, 900	WN, BL
5	ASME B16.47-B (API FLANGE)	26" - 60"	LBS: 75, 150, 300, 400, 600, 900	WN, BL
6	AWWA C207 FLANGE	4" - 120"	TABLE 2, 3, 4 CLASS B & D	SO, BL
7	API 590 FIG.8 FLANGE B16.48	1/2" - 36"	LBS: 150, 300, 400, 600, 900, 1500, 2500	FIG.8
8	SPACER AND BLANK B16.48	1/2" - 36"	LBS: 150, 300, 400, 600	SPACER AND BLANK
9	BS 4504 FLANGE	DN10 - DN2000	PN: 2.5, 6, 10, 16, 25, 40	CODE: 101, 111, 112, 113, 105
10	SABS 1123 FLANGE	DN10 - DN600	KPA: 600, 1000, 1600, 2500, 4000	SO, WN, SW, TH, LJ, BL
11	JIS B2220 (KS B1503) FLANGE	DN10 - DN1500	5K, 10K, 16K, 20K, 30K, 40K	SO, WN, SW, TH, LJ, BL
12	GOST 12820/1-80	DN15 - DN1200	PN: 1, 1.6, 2.5, 4, 6.3, 10	SO, WN
13	AS 2129 FLANGE	DN15 - DN1200	TABLE: D, E, F, H	SO, BL
14	NS FLANGE	DN15 - DN800	PN: 6, 10, 16, 40	SO, BL
15	VSM FLANGE	DN15 - DN200	PN: 6, 10, 16	SO, WN, BL
16	DIN FLANGE	DN10 - DN4000	PN: 1, 2.5, 6, 10, 16, 25, 40, 64, 100, 160, 250, 320, 400	SO, WN, SW, TH, LJ, BL
17	EN1092 PL	DN10 ~ DN600	PN6, PN10, PN16, PN25, PN40, PN63, PN100	TH, SO, WN, BL

Product Display

Flange Process

Flange Types

Other Products

Our company is a professional manufacturer and seller of flanges, pipe fittings and pipe.

Our company covers an area of 60,000 square meters and assets of 7 million dollars.

Our Customer

Company Certificate

Frequently Asked Questions (FAQ)

1. What is a Blind (BL) Flange and where is it commonly used?

A Blind (BL) Flange is a solid disc without a center bore designed to seal the end of a piping system or pressure vessel nozzle. It is widely used to block line flow during pressure tests, routine maintenance, and system expansion in chemical, industrial, and municipal infrastructure.

2. What international manufacturing standards do you produce flanges to?

We produce industrial flanges in strict accordance with major standards including ANSI/ASME (B16.5, B16.47 Series A & B, B16.36, B16.48), DIN, EN1092, BS 4504, JIS B2220, SABS 1123, AWWA C207, GOST 12820, and AS 2129.

3. Which materials are available for custom flange manufacturing?

Our flange materials cover Carbon Steel (ASTM A105), Stainless Steel (ASTM A182 F304, F310, F316, F317, F321, F347), and Alloy Steel / Superalloys (A182 F5, F9, F11, F22, F51, F53, INCONEL 600, 625, 825) to satisfy varying temperature, pressure, and corrosive environments.

4. What surface treatments and anti-corrosion finishes are supplied?

To prevent oxidation during transport and storage, flanges can be supplied with black anti-rust painting, transparent oil/rust preventive coating, yellow vanish, cold electro-galvanizing, or hot-dip galvanizing per customer specifications.

5. What pressure classes and size ranges are supported?

We accommodate dimensions ranging from nominal 1/2" (DN15) up to large diameter 120" (DN4000) with pressure ratings from ANSI Class 150 to Class 2500, and metric ratings from PN2.5 up to PN400.

6. How are flanges packed to prevent damage during international transit?

Flanges are packed in seaworthy export-grade plywood cases or pallets. Each flange has its facing protected with protective covers or plastic wrapping, securely banded to avoid collision and moisture during ocean shipping.

BL Flange Raising Face ANSI B16.5 Class 300 Forged Flange Blind Flange Black Painting

Product Description

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