DIN PN6 - PN40 Blind Flanges Manufacturer

DIN PN6 - PN40 Blind Flanges

DIN PN6 Blind Flanges Manufacturer, DIN PN10 Blind Flanges Stockist, DIN PN16 Blind Flanges Supplier, DIN PN25 Blind Flanges Exporter, DIN PN40 Blind Flanges, DIN Blind Flanges Supplier in India, Custom DIN Blind Flanges in Exotic Alloys, Marine-Grade DIN Copper Nickel Blind Flanges, Stainless Steel DIN Blind Flanges, Titanium DIN PN25 Blind Flanges Manufacturer, Duplex Steel DIN PN10 Blind Flanges Exporter, DIN PN16 Blind Flanges in Stainless Steel, Hastelloy DIN Blind Flanges Supplier, Stainless Steel 304 DIN Blind Flanges Manufacturer in India

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ANSI-B16-50-Class-1500-blind-flanges-sl3

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Werner Flanges Inc. is an established manufacturer and exporter of high-quality DIN PN6 to PN40 Blind Flanges, developed to provide secure sealing solutions for pipe systems in a variety of sectors. These blind flanges are designed to resist pressure levels ranging from 6 to 40 bar, making them suitable for separating pipelines, valves, and equipment during maintenance or system shutdowns. Our DIN blind flanges are made from premium materials such as stainless steel, carbon steel, duplex, super duplex, and exotic alloys, ensuring durability, corrosion resistance, and dependable performance in demanding situations such as oil and gas, petrochemical, water treatment, and power generation.

Werner Flanges Inc. understands the importance of accurate specifications and timely delivery. Our skilled staff guarantees that each blind flange fulfills high quality standards and is tailored to your specific project requirements. Whether you need stock-size or custom-engineered DIN PN blind flanges, we are here to help with experienced advice and low prices. Contact us now at sales@wernerflanges.com to request a quotation or learn more about our extensive selection of DIN PN6 – PN40 Blind Flanges and how they may improve the safety and efficiency of your plumbing system.

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DIN PN6 - PN40 Blind Flanges Technical Specifications

Specification	Details
Standards	DIN EN 1092-1 (formerly DIN 2633, DIN 2634, DIN 2635, DIN 2636)
Pressure Ratings (PN)	PN6, PN10, PN16, PN25, PN40
Flange Type	Blind Flanges
Size Range	DN 10 to DN 600 (or as per customer requirement)
Face Types	Raised Face (RF), Flat Face (FF), Tongue and Groove (T&G)
Connection	Used to close or seal pipe ends or valves
Dimensions	According to DIN EN 1092-1 specifications
Testing	Hydrostatic test, Radiographic test, Dimensional inspection
Surface Finish	Machined with high precision for a smooth sealing surface

Material Specifications for DIN PN6 - PN40 Blind Flanges

Type of Materials	Common Specifications / Customization Available on Request * Materials conform to ASTM/ASME standards and are compatible with DIN PN6 – PN40 Blind Flanges
Duplex Steel	ASTM/ASME A182 F51, F60, F61, UNS S31803, UNS S32205
Super Duplex Steel	ASTM/ASME A182 F53, F55, UNS S32750, UNS S32760, F44 (6Mo)
Stainless Steel	ASTM/ASME A182 F304, F304L, F316, F316L, F310, F317L, F321, F347, F904L, etc.
Carbon Steel	ASTM A105, A350 LF1, LF2, LF3, A266 Class 1/2, A694 F42 to F70, A765 Gr. II
Alloy Steel	ASTM/ASME A182 F1, F5, F9, F11, F12, F22
Non-Ferrous Alloys	Titanium, Brass, Admiralty Brass, Copper Nickel, Nickel Alloys, Hastelloy
Titanium	ASTM/ASME B381 Gr.1, Gr.2, Gr.5, Gr.7, Gr.12, Gr.16
Copper Nickel	ASTM B151 UNS C70600 (Cu-Ni 90/10), C71500 (Cu-Ni 70/30)
Brass, Al-Brass	ASTM B152 UNS C26000, C27200, C28000; ASTM B111 for Al-Brass
Nickel Alloys	ASTM B160, B161, B564 – UNS N02200, N02201, N04400, N08800, N08825, N06600, N06601, N06625, Monel K500
Alloy 20	ASTM B462 UNS N08020
Hastelloy	ASTM B564 UNS N10276 (Hastelloy C276), N06022 (Hastelloy C22)
Cladded Materials	ASTM B898, B265, B424 or custom explosion/clad bonding using dissimilar metals
Cladded Materials	Titanium-Steel, Nickel-Steel, Titanium-Copper, Stainless Steel-Carbon Steel, Bimetallic/Trimetallic Combinations

Understanding Pressure Ratings in DIN Blind Flanges:

DIN Blind Flanges are engineered to withstand specific pressure ratings, commonly denoted as PN (Pressure Nominale) values such as PN6, PN10, PN16, PN25, and PN40. These pressure ratings indicate the maximum allowable operating pressure the flange can safely handle at a given temperature, ensuring system integrity and safety. Selecting the correct PN rating is critical to match the operational demands of your piping system, preventing leaks, failures, and costly downtime. Higher PN numbers correspond to flanges capable of withstanding greater pressures, making PN40 suitable for high-pressure applications like petrochemical or power plants, while PN6 or PN10 are typically used for low to moderate pressure systems.

Factors to Consider When Selecting DIN Blind Flange Pressure Ratings:

Operating Pressure: Ensure the flange pressure rating (PN) matches or exceeds the system’s maximum operating pressure.
Temperature Conditions: Consider the operating temperature, as pressure ratings can vary with temperature fluctuations.
Material Compatibility: Select flange materials that can withstand the chemical and physical properties of the media.
Application Environment: Account for environmental factors such as corrosion, abrasion, and exposure to chemicals.
Industry Standards: Follow applicable industry codes and standards to ensure safety and regulatory compliance.
System Design Requirements: Take into account pipe size, connection type, and installation space.
Future Expansion: Consider potential system upgrades or increased pressure demands when selecting ratings.

Advantages of Using Properly Rated DIN Blind Flanges:

Enhanced Safety: Proper pressure ratings ensure flanges can safely withstand system pressures, reducing risk of leaks or failures.
Improved Durability: Flanges rated correctly for pressure last longer, minimizing wear and tear in demanding environments.
Better Performance: Maintains system integrity by providing reliable sealing and preventing pressure loss.
Regulatory Compliance: Meets industry standards and legal requirements, ensuring safe operation and avoiding penalties.
Cost Efficiency: Reduces maintenance and replacement costs by using flanges suited for specific pressure conditions.
Versatility: Available in multiple pressure classes, allowing precise selection for varied industrial applications.
Peace of Mind: Confidence in system reliability when using flanges with correct pressure ratings.

Types of DIN PN6 - PN40 Blind Flanges

Type	Description
DIN 2527 PN6 Blind Flanges	Used in low-pressure systems such as water supply lines, HVAC, and general plumbing. Ideal for closing pipe ends securely without pressure build-up.
DIN 2527 PN10 Blind Flanges	Suited for moderate pressure applications including irrigation, compressed air systems, and low-pressure industrial processes.
DIN 2527 PN16 Blind Flanges	Commonly used in industrial water systems, gas lines, and chemical processing plants, offering a secure seal under medium pressure.
DIN 2527 PN25 Blind Flanges	Reliable in high-pressure environments such as steam piping, refineries, and power plant applications where robust sealing is required.
DIN 2527 PN40 Blind Flanges	Designed for very high-pressure systems in oil & gas, petrochemical, and offshore installations, ensuring leak-proof performance and safety.

DIN PN6 - PN40 Blind Flanges: Dimensions & Pressure Ratings

Nominal Size	PN6 O.D.	PN10 O.D.	PN16 O.D.	PN25 O.D.	PN40 O.D.	Dimension Type
DN 15 / 1/2″	95 mm	105 mm	105 mm	105 mm	105 mm	O.D.
	65 mm	65 mm	65 mm	65 mm	65 mm	PCD
	4 x 14 mm	4 x 14 mm	4 x 14 mm	4 x 14 mm	4 x 14 mm	Holes x diameter
DN 20 / 3/4″	105 mm	115 mm	115 mm	115 mm	115 mm	O.D.
	75 mm	75 mm	75 mm	75 mm	75 mm	PCD
	4 x 14 mm	4 x 14 mm	4 x 14 mm	4 x 14 mm	4 x 14 mm	Holes x diameter
DN 25 / 1″	115 mm	130 mm	130 mm	130 mm	130 mm	O.D.
	85 mm	85 mm	85 mm	85 mm	85 mm	PCD
	4 x 14 mm	4 x 14 mm	4 x 14 mm	4 x 14 mm	4 x 14 mm	Holes x diameter
DN 32 / 1 1/4″	140 mm	150 mm	150 mm	150 mm	150 mm	O.D.
	100 mm	100 mm	100 mm	100 mm	100 mm	PCD
	4 x 14 mm	4 x 14 mm	4 x 14 mm	4 x 14 mm	4 x 14 mm	Holes x diameter
DN 40 / 1 1/2″	150 mm	160 mm	160 mm	160 mm	160 mm	O.D.
	110 mm	110 mm	110 mm	110 mm	110 mm	PCD
	4 x 18 mm	4 x 18 mm	4 x 18 mm	4 x 18 mm	4 x 18 mm	Holes x diameter
DN 50 / 2″	165 mm	180 mm	180 mm	180 mm	180 mm	O.D.
	125 mm	125 mm	125 mm	125 mm	125 mm	PCD
	4 x 18 mm	4 x 18 mm	4 x 18 mm	4 x 18 mm	4 x 18 mm	Holes x diameter
DN 65 / 2 1/2″	190 mm	215 mm	215 mm	215 mm	215 mm	O.D.
	180 mm	180 mm	180 mm	180 mm	180 mm	PCD
	4 x 18 mm	4 x 18 mm	4 x 18 mm	4 x 18 mm	4 x 18 mm	Holes x diameter
DN 80 / 3″	210 mm	240 mm	240 mm	240 mm	240 mm	O.D.
	195 mm	195 mm	195 mm	195 mm	195 mm	PCD
	4 x 18 mm	4 x 18 mm	4 x 18 mm	4 x 18 mm	4 x 18 mm	Holes x diameter
DN 100 / 4″	240 mm	285 mm	285 mm	285 mm	285 mm	O.D.
	215 mm	215 mm	215 mm	215 mm	215 mm	PCD
	8 x 18 mm	8 x 18 mm	8 x 18 mm	8 x 18 mm	8 x 18 mm	Holes x diameter
DN 125 / 5″	270 mm	320 mm	320 mm	320 mm	320 mm	O.D.
	250 mm	250 mm	250 mm	250 mm	250 mm	PCD
	8 x 18 mm	8 x 18 mm	8 x 18 mm	8 x 18 mm	8 x 18 mm	Holes x diameter
DN 150 / 6″	300 mm	350 mm	350 mm	350 mm	350 mm	O.D.
	280 mm	280 mm	280 mm	280 mm	280 mm	PCD
	8 x 22 mm	8 x 22 mm	8 x 22 mm	8 x 22 mm	8 x 22 mm	Holes x diameter
DN 200 / 8″	360 mm	405 mm	405 mm	405 mm	405 mm	O.D.
	335 mm	335 mm	335 mm	335 mm	335 mm	PCD
	8 x 22 mm	8 x 22 mm	8 x 22 mm	8 x 22 mm	8 x 22 mm	Holes x diameter
DN 250 / 10″	430 mm	480 mm	480 mm	480 mm	480 mm	O.D.
	395 mm	395 mm	395 mm	395 mm	395 mm	PCD
	12 x 26 mm	12 x 26 mm	12 x 26 mm	12 x 26 mm	12 x 26 mm	Holes x diameter
DN 300 / 12″	485 mm	535 mm	535 mm	535 mm	535 mm	O.D.
	460 mm	460 mm	460 mm	460 mm	460 mm	PCD
	12 x 26 mm	12 x 26 mm	12 x 26 mm	12 x 26 mm	12 x 26 mm	Holes x diameter

Industries and Applications of DIN PN6 - PN40 Blind Flanges:

DIN PN6 to PN40 Blind Flanges are essential components widely used in various industries for securely closing the ends of pipelines, valves, and pressure vessels. These flanges offer strong, leak-proof sealing to ensure safety and system integrity in high-pressure and demanding environments.

Oil & Gas Industry: Used in pipelines, refineries, and offshore platforms to isolate sections for maintenance and prevent leaks in crude oil and natural gas transport.
Chemical & Petrochemical Plants: Critical for safely sealing piping systems that handle corrosive and high-temperature fluids during chemical processing.
Power Generation: Applied in steam, gas, and nuclear power plants for closing pressure pipelines and equipment during operation and maintenance.
Water Treatment & Distribution: Used in municipal water supply, sewage, and irrigation pipelines to close ends securely under various pressure conditions.
Pharmaceutical & Food Processing: Suitable for hygienic and sterile piping systems requiring contamination-free closure points.
Marine & Shipbuilding: Employed in ship piping systems like ballast, bilge, and fuel lines requiring durable, corrosion-resistant closures.
Industrial Manufacturing: Used in various manufacturing plants to isolate piping sections during repairs, testing, or system upgrades.

Frequently Asked Questions (FAQs) about DIN PN6 - PN40 Blind Flanges

1. What are DIN PN6 – PN40 Blind Flanges?: DIN PN6 to PN40 Blind Flanges are solid flanges used to close pipe ends or valves, designed according to DIN standards with pressure ratings from 6 to 40 bar, ensuring a leak-proof seal and easy system isolation.
2. What industries commonly use DIN PN6 – PN40 Blind Flanges?: These flanges are commonly used in oil & gas, petrochemical, power generation, water treatment, marine, pharmaceutical, and HVAC industries.
3. What materials are typically used for these blind flanges?: Common materials include carbon steel, stainless steel, alloy steel, and special alloys that offer corrosion resistance and high-temperature durability.
4. How do I select the appropriate PN rating for my application?: Choose a flange with a PN rating that meets or exceeds the system’s maximum operating pressure and temperature to ensure safety and optimal performance.
5. What are the advantages of using blind flanges?: Blind flanges provide a secure seal to close pipe ends, facilitate easy maintenance and inspection, and help isolate sections of piping systems safely.
6. Can DIN PN blind flanges be interchanged with ANSI flanges?: No, DIN PN and ANSI flanges have different dimensions and bolt patterns and are generally not interchangeable without adapters.
7. How does flange thickness vary with PN rating?: Flange thickness typically increases with higher PN ratings to withstand greater pressure levels and maintain mechanical integrity.
8. Which standards govern DIN PN6 – PN40 Blind Flanges?: DIN EN 1092-1 is the main standard governing flange dimensions and pressure classes, with material specifications defined separately.
9. Are custom sizes and materials available?: Yes, many manufacturers offer custom flange sizes, materials, and drilling patterns to suit specific project needs.
10. Where can I purchase high-quality DIN PN6 – PN40 Blind Flanges?: Contact trusted suppliers or manufacturers such as Werner Flanges Inc. at sales@wernerflanges.com for inquiries and custom orders.