Malleable iron Flange Fig 321 with holes beaded DIN

Product Overview

This malleable iron Flange Fig 321 with holes and beaded edge is manufactured in accordance with DIN standards. It is designed with bolt holes for convenient connection with Flange Fig 321d pipes, valves and equipment. The beaded structure strengthens the pipe end to prevent deformation and cracking. Made of high-quality black heart malle iron, it features high strength, good toughness and stable connection performance, widely used in water, gas, oil, steam, fire fighting and other low-pressure fluid piping systems.

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Product details

Malleable cast iron flange with holes can be used for transitional connection between grooved pipes and flange equipment and valves. The connecting bolts are made of high-strength bolts, and the product has stable performance.

Product Features (Specifications – Plain English List)

Standard: DIN EN 10242

Type: Flange Fig 321 with holes beaded

Material: Black heart malleable iron

Thread standard: DIN 2999

Pressure class: 150LB

Temperature range: -20℃ ~ 230℃

Surface treatment: Black / Electro-galvanized / Hot-dip galvanized

Application: Water, gas, oil, compressed air, steam, fire fighting

Specifications Table (Dimensions & Parameters)

Size	Inch	1/2	3/4	1	11/4	11/2	2
Size	mm	15	20	25	32	40	50
Dim.(mm)	A	12	13	14	15	16	18
Size	Inch	21/2	3	4
Size	mm	65	80	100
Dim.	A	20	22	24
(mm)	A	20	22	24

Product Applications

Flange Fig 321d connection in plumbing and water supply pipelines
Pipeline connection with valves and equipment in fire fighting systems
Fixed connection of gas and heating pipelines
Industrial compressed air and oil pipeline Flange Fig 321installation
Marine, mining and construction piping Flange Fig 321d connection

Installation and Maintenance

Inspect the Flange Fig 321for cracks, deformation and intact beads before installation
Clean threads and bolt holes, check gasket position
Tighten bolts evenly and symmetrically to ensure sealing
Do not over-tighten to avoid Flange Fig 321cracking
Pressure test after installation
Regularly check for leakage, rust and loose bolts

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FAQ

Can you supply OEM?

OEM is available. We can customize the product according to your specific requirements, including logo printing and packaging design.

What’s the MOQ?

The MOQ is 500 pieces. For customized products with special sizes or surface treatments, the MOQ may vary.

How about the order processing and lead time?

After order confirmation and receipt of the advance payment, we will arrange production. Generally, the products can be ready for shipment within 15-20 working days. Once dispatched, we will notify you and provide all necessary documents for customs clearance.

What quality will be ensured?

All products are 100% new and undergo strict quality inspections, including pressure testing and dimensional checks, before delivery. We use sturdy wooden crates or cartons to ensure the products are well-protected during transportation.

Can you guide the installation?

Yes, we provide detailed installation instructions in English and other major languages. Our technical support team is also available for online consultation and guidance if needed.

Contact Information

Sales Inquiry:
Provide contact information for sales inquiries.

Email: [email protected]

Phone: +86 13012223295

Technical Support

If you have any questions regarding product installation, commissioning, operation or maintenance, please contact our technical support team for professional assistance:

Email: [email protected]