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Blind Flanges

Price 150 INR/ Unit

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MOQ : 100 Units

Blind Flanges Specification

Feature
Leak proof, High Strength, Corrosion Resistant

Grade
ASTM A105, ASTM A182 F304/F316, ASTM A350 LF2, EN 1092-1

Dimension (L*W*H)
Customizable as per requirement

Application
Oil & Gas, Petrochemical, Power plant, Water Supply, Industrial piping system

Purity
Metallic Purity >99%

Product Type
Blind Flange

Material
Stainless Steel, Carbon Steel, Alloy Steel

Standard
ANSI, DIN, JIS, BS, IS, EN, GOST

Shape
Round

Surface
Rust Proof, Polished, Smooth

Connection
Welded, Bolted

Technics
Forged, Cast

Pressure
150# - 2500#

Size
1/2 Inch to 48 Inch

Color
Metallic Silver, Grey, Black

Test Reports
Mill Test Certificate EN 10204 3.1/3.2

Wall Thickness
SCH 10 to SCH 160

Corrosion Resistance
Excellent

Hardness
125-250 HB

Series
150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB

Temperature Range
-46°C to +600°C

Heat Treatment
Normalized, Quenched and Tempered

Marking
Stamped as per standards

Machining
CNC Machined

Ends
Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)

Coating
Anti-rust oil, Black paint, Zinc plated

Packing
Plywood cases, Palletized

Blind Flanges Trade Information

Minimum Order Quantity
100 Units

FOB Port
Vadodara , Gujarat

Payment Terms
Cash Against Delivery (CAD), Letter of Credit (L/C), Cash in Advance (CID), Letter of Credit at Sight (Sight L/C)

Supply Ability
1000 Units Per Month

Delivery Time
15 Days

Sample Available
Yes

Sample Policy
Contact us for information regarding our sample policy

Main Export Market(s)
Central America, North America, Australia, Eastern Europe, Western Europe, South America, Middle East, Africa, Asia

Main Domestic Market
All India

Certifications
Yes

About Blind Flanges

Blind Flanges are widely used in petrochemical, pipe engineering, public services and water works for attaching one pipe to another pipe safely. This flange is light weight with high tensile strength. Enormous resistivity towards moisture and adverse factors are the key attributes of our offered Blind Flange. These flanges are manufactured under the observation of our dedicated professionals with the help of progressive techniques. Our offered Blind Flanges are known for their unique features like corrosion resistance, robust construction and fine finish.

Specification

Material	Stainless Steel
Usage/Application	Industrial
Material Standard	ASTM A182,ANSI B16.5
Type	Blind Flange
Color	Silver

RANGE :

1/2" (15 NB) to 60" (1500NB) in 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 ETC. available with NACE MR 01-75
SIZE :
1/2" (15NB) to 60" (1500NB)

CLASS / PRESSURE :

Class / Pressure : 150#, 300#, 600#, 900#, 1500#, 2500# PN6, PN10, PN16, PN25, PN40, PN64

DIMENSION :

B16.5, BS4504, EN-1092, B16.36, B16.47, B16.48, MSS SP44

STD :

STD : ANSI Flanges, ASME Flanges, DIN Flanges, EN Flanges, BS Flanges, API, JIS, NACE etc.

FEATURES :

Dimensional accuracy, Corrosion resistance, High efficiency, Excellent finish, Durable

Stainless Steel Blind Flanges :

Standard : ASTM / ASME A/SA 182
Grade : F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L

Duplex Steel Blind Flanges :

Standard : ASTM / ASME A/SA 182
Grade : F 44, F 45, F51, F 53, F 55, F 60, F 61

Aluminium Blind Flanges :

Standard : ASTM B247, B361.
Grade : 2024, 6061, 6063, 6101, 7075.

Titanium Blind Flanges :

Standard : ASTM B381.
Grade : Grade 1, Grade 2, Grade 4, Grade 5, Grade 6, Grade 7, Grade 9, Grade 19, Grade 23
Carbon Steel Blind Flanges :
Standard : ASTM A 105/A694/ A350 LF3/A350 LF2.
Grade : F42/46/52/56/60/65/70

Low Temperature Carbon Steel Blind Flanges :

Standard : ASTM A 350 LF2 / A350 LF3
Alloy Steel Blind Flanges :
Standard : ASTM A182
Grade : F1/F5/F9/F11/F22/F91

Copper Alloy Blind Flanges :

Standard : ASTM / ASME SB 61 / 62 / 151 / 152.
Grade : UNS NO. C 70600 (CU -NI- 90/10), C 71500 (CU -NI- 70/30) C 71640

Nickel Alloy Weld Neck Flanges :

Standard : ASTM / ASME SB 564 / 160 / 472

Nickel 200 - UNS N02200
Nickel 201 - UNS N02201
Monel 400 - UNS N04400
Monel K500 - UNS N05500
Inconel K600 - UNS N06600
Inconel 601 - UNS N06601
Inconel 625 - UNS N06625
Inconel 800 - UNS N08800
Inconel 800H - UNS N08810
Inconel 825 - UNS N08825
Hastelloy C276 - UNS N10276
Alloy 20 - UNS N08020

Test Certificate :

Manufacturer Test Certificate as per EN 10204 / 3.1

Engineered for Superior Leak-Proof Performance

Designed to ensure maximum reliability, these blind flanges deliver excellent sealing in high-pressure piping networks. With precise machining and heat treatments such as normalizing and quenching/tempering, they provide unmatched mechanical strength and leak-proof operation, making them ideal for critical industrial applications.

Built for Versatility and Global Compatibility

Meeting leading standards including ANSI, DIN, JIS, EN, and GOST, our flanges fit seamlessly into diverse piping systems. The range covers sizes from 1/2 inch to 48 inch, and pressure classes from 150LB up to 2500LB, allowing use across oil & gas, petrochemical, water, and power industries worldwide.

Certified Quality and Robust Protection

All flanges are issued with Mill Test Certificates (EN 10204 3.1/3.2) verifying their metallurgy and compliance. Surface coatingsanti-rust oil, black paint, or zinc platingprovide superior corrosion resistance, while each unit is carefully packed and marked for traceability, ensuring safety during transportation and installation.

FAQs of Blind Flanges:

Q: How are these blind flanges installed in industrial piping systems?

A: Blind flanges can be installed either by welding or bolting, depending on the system requirements. The ends are designed compatible with various standards and connection methods to ensure secure closure of pipe ends or pressure vessel openings.

Q: What benefits does the anti-rust coating provide?

A: The anti-rust oil, black paint, or zinc plating coatings deliver long-lasting corrosion resistance, protecting the flanges in harsh environments and extending their operational life, especially in oil, gas, and water applications.

Q: When should I select RTJ, RF, or FF ends for blind flanges?

A: Select Ring Type Joint (RTJ) for high-pressure, high-temperature applications requiring superior sealing. Raised Face (RF) and Flat Face (FF) ends are suited for general industrial uses. The choice depends on specific system pressures, temperatures, and sealing requirements.

Q: Where can these blind flanges be applied?

A: These flanges are widely used in oil & gas pipelines, petrochemical plants, power generation, water supply systems, and various industrial piping installations due to their robust performance and compliance with multiple standards.

Q: What is the process for quality assurance and certification?

A: Each flange undergoes CNC machining, heat treatment, thorough hardness (125-250 HB) and corrosion resistance testing. They are supplied with Mill Test Certificates EN 10204 3.1/3.2, ensuring compliance with international quality standards.

Q: How do these flanges benefit demanding environments?

A: Their excellent corrosion resistance, high strength, precise sealing capabilities, and leak-proof construction provide reliable service in extreme temperatures and pressures, reducing maintenance costs and downtime.

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