What is a blind flange used for?

A blind flange is a solid plate used to close the end of a piping system or pressure vessel. It is commonly used for isolating sections during maintenance, pressure testing, or to terminate unused pipelines.

Can blind flanges handle high pressure?

Yes, blind flanges are designed to withstand high pressure and are available in various pressure classes. Their solid construction makes them ideal for sealing off systems in demanding industrial environments.

What materials are blind flanges available in?

Blind flanges are manufactured in stainless steel, carbon steel, alloy steel, and other materials depending on the application’s temperature, pressure, and corrosion resistance requirements.

Trusted Blind Flange Manufacturer In India Astm A105, A350 Lf2, A182 F304/f316, F11, F22, Duplex & Super Duplex Blind Flanges

Name: Trusted Blind Flange Manufacturer In India Astm A105, A350 Lf2, A182 F304/f316, F11, F22, Duplex & Super Duplex Blind Flanges
Brand: Peekay Metal Corporation
Availability: InStock
Rating: 5 (4 reviews)

₹82 - ₹173

Minimum Order : 500

Customization as per requirements

Specification Details
Flanges Types	Blind
Class	150 Lbs, 300 Lbs, 600 Lbs, 900 Lbs, 1500 Lbs, 2500 Lbs Asa 150, Asa 300, Pn 6, 10, 16, 25, 40, 64, 100, 160
Size	1/2″ (15 Nb), 48″ (1200nb) Dn10~dn5000
Type	Raised Face (rf), Flat Face (ff), Ring Type Joint (rtj), Lap Joint Face (ljf), Large Male Female (lmf), Small Male Female (smf), Large Tongue & Groove, Small Tongue, Groove

Reliable Blind Flange Manufacturer in India Offering Carbon Steel, Alloy Steel & Stainless Steel Blind Flanges in ASTM A105, A350 LF2, A182 F304, F316, F11 & F22 Grades

Peekay Metal Corporation is a leading Blind Flange Manufacturer in India, offering robust and precision-crafted solutions for critical industrial systems. Blind flanges are solid discs used to isolate or terminate piping systems, ensuring complete shut-off where necessary. They are essential in pressure vessel openings, testing lines, and maintenance operations, providing a secure seal without allowing flow through. With their ability to withstand extreme pressure and prevent leakage, blind flanges play a vital role in systems across industries like oil & gas, petrochemical, power generation, and water treatment. We provide Weld Neck Flanges, engineered for strength, durability, and leak-proof performance.

As a trusted Blind Flange supplier in India, we provide a wide variety of blind flanges in different materials, pressure classes, and sizes to meet diverse application requirements. Our blind flanges are manufactured using high-quality stainless steel, carbon steel, and alloy steel, ensuring durability, corrosion resistance, and long service life. Each flange undergoes strict quality checks to comply with international standards. Whether used for sealing off unused pipeline sections or providing access for future expansion, our blind flanges deliver reliability and performance you can count on.

Blind Flange Grade Table

Material Type	ASTM / ASME Grade	Description / Application
Carbon Steel	ASTM A105	Standard grade for high-temperature and pressure piping systems
Carbon Steel	ASTM A350 LF2	Suitable for low-temperature service with good impact resistance
Carbon Steel	ASTM A694 F42 / F46 / F52	Used in high-pressure transmission pipelines
Alloy Steel	ASTM A182 F11	Chromium-molybdenum alloy for elevated temperature services
Alloy Steel	ASTM A182 F22	Higher chromium content for high-pressure and high-temperature applications
Stainless Steel	ASTM A182 F304 / F304L	General corrosion resistance for chemical and food processing
Stainless Steel	ASTM A182 F316 / F316L	Enhanced corrosion resistance for marine and chemical environments
Duplex Stainless Steel	ASTM A182 F51	High strength with excellent resistance to stress corrosion cracking
Super Duplex Stainless Steel	ASTM A182 F53 / F55	Extreme strength and corrosion resistance for offshore applications
Nickel Alloy	ASTM B564 Inconel 600 / 625	High-temperature and corrosive environments
Nickel Alloy	ASTM B564 Hastelloy C276	Severe chemical and acidic service conditions

Blind flanges are solid, disk-shaped flanges used to seal the ends of piping systems, valves, or pressure vessels, providing a secure, leakproof termination. They are widely used in oil and gas, petrochemical, power generation, and water treatment industries for pressure testing, maintenance, and future pipeline expansion. Manufactured in carbon steel, alloy steel, and stainless steel grades, blind flanges offer excellent strength, corrosion resistance, and durability, making them suitable for high-pressure and high-temperature service conditions.

Blind Flange Weight Chart in KG, MM, PDF (ASME B16.5 – Class 150)

Nominal Size (NB)	Outside Diameter (mm)	Thickness (mm)	Approx. Weight (kg)
½″	89	11	1.5
1″	108	13	2.5
2″	152	16	6.0
3″	191	19	10.5
4″	229	24	16.0
6″	279	29	28.0
8″	343	32	45.0
10″	406	35	65.0
12″	483	38	95.0
16″	597	44	165.0
20″	711	48	255.0
24″	813	51	365.0

Blind Flange Weight Chart (ASME B16.5 – Class 300)

Nominal Size (NB)	Outside Diameter (mm)	Thickness (mm)	Approx. Weight (kg)
1″	124	16	4.5
2″	165	21	10.0
3″	210	24	18.0
4″	254	29	30.0
6″	318	35	55.0
8″	381	38	85.0
10″	445	41	125.0
12″	521	48	185.0

Blind flanges are flat flanges having no bore, and their purpose is to close the end of pipelines, valves or pressure vessels in the safest and most reliable manner possible. They find wide applications in those industries where they are in need of frequent inspection, pressure testing or temporary isolating flow. The blind flanges will prevent leakage, preserve downstream equipment, and also enable easy access to the system later in case of expansion or modification of the entire pipeline without necessarily dismantling the entire pipeline.

Blind flanges have a very diverse variety of materials, including carbon steel, alloy steel, stainless steel, and duplex steel, and they can be used in high pressure as well as extreme-temperature applications. Their strong construction provides them with high resistance to mechanical and corrosion stress and long-term deformation. Blind flanges are available in different pressure classes and international standards and provide a reliable way to use any critical piping system in the oil and gas, as well as petrochemical, power and process sectors.

Client Project Summary of Blind Flange Exporter in India

The client project deals with the provision of high-quality Blind Flanges to be used in the critical piping systems in industries that have high pressure and temperature environments. These blind flanges were made of high-quality carbon steel, alloy steel, stainless steel and were made according to the ASTM and ASME specifications to guarantee high strength, dimension, and performance, and long life. Tough quality control processes were addressed in all the manufacturing steps such as checking of raw materials, checking of dimensional, checking of pressure rating, and mechanical property tests. The project was done on time and provided safe, reliable and leak-proof closure solutions to key industrial operation.

Product Supplied	Quantity	Cities (India)
ASTM A105 Blind Flanges for Pipeline End Closure	210 Pieces	Surat
Blind Flanges for High-Pressure Industrial Piping Systems	285 Pieces	Hyderabad
Alloy Steel Blind Flanges for Heavy Engineering Applications	240 Pieces	Coimbatore
Heat-Treated Blind Flanges for Refinery & Petrochemical Use	190 Pieces	Indore

Type of Sub-products

Raised Face (rf) Blind Flange
Raised Face (rf) Blind Flange
This type features a small raised area around the bore for better sealing with gaskets. Commonly used in high pressure environments to enhance gasket compression.
Ring Type Joint (rtj) Blind Flange
Ring Type Joint (rtj) Blind Flange
Designed with a groove for metal ring gaskets, these are used in high pressure, high temperature systems requiring a strong, leak proof seal.