What is the maximum working pressure of the Three-part cast iron hose clamp with catches, DIN 20039 B when properly installed?

The maximum working pressure of the Three-part cast iron hose clamp with catches, DIN 20039 B, when properly installed and used with a correctly matched hose and fitting, is up to 25 bar.

Three-part cast iron hose clamp with catches, DIN 20039 B

Q: How do the separate pressure inserts ("tongues") in the Three-part cast iron hose clamp with catches, DIN 20039 B improve long-term hose sealing and stability?

The separate pressure inserts (“tongues”) in the Three-part cast iron hose clamp with catches, DIN 20039 B improve long-term hose sealing and stability by distributing and maintaining clamping force precisely where it’s needed. Key benefits: - Localized, uniform pressure: Each tongue bears directly on the hose circumference, evening out load and preventing high-pressure points that can cut or deform the hose. - Enhanced sealing over time: By compensating for material relaxation, thermal cycling and vibrations, the tongues preserve constant radial compression, maintaining a tight seal and reducing leaks. - Increased mechanical stability: The segmented design resists loosening and creep better than a single-band clamp, keeping the hose end anchored under dynamic loads up to the clamp’s rated pressure. - Protection of hose material: Smooth, controlled contact reduces abrasion and extrusion of the hose lip into fittings, extending hose life. - Easy assembly and reliable performance: Individually formed tongues conform to hose profiles and work with the flange hooks to secure ends reliably, minimizing maintenance and downtime. Together these effects ensure the clamp sustains effective sealing and structural integrity in demanding industrial applications.

Additional information

Material	CS – steel (cast iron)

The three-part clamp according to DIN 20039 B is a robust and reliable solution designed for demanding industrial applications. Equipped with specially formed hooks on the flange, it ensures secure fastening of hose ends, while the separate pressure inserts – the so‑called “tongues” – provide optimal clamping force and long‑lasting stability. Manufactured from high‑quality galvanized ductile cast iron, the clamp combines exceptional strength with effective corrosion resistance, guaranteeing durability even under intensive use. When correctly installed and paired with a properly selected hose and fitting, the system achieves a working pressure of up to 25 bar, making it a dependable choice for environments where safety and performance are paramount. This advanced design not only enhances operational reliability but also minimizes downtime, offering users a cost‑effective and professional solution for fluid handling systems.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Price	Quantity	Actions	Catalogue
MU-1330	3-piece clamp with teeth 85÷102 mm (3")	-	-	In stock	0 €		Enquiry
MU-1333	3-piece clamp with teeth 170÷200 mm (6")	-	-	In stock	0 €		Enquiry

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The three-part clamp according to DIN 20039 B is a robust and reliable solution designed for demanding industrial applications. Equipped with specially formed hooks on the flange, it ensures secure fastening of hose ends, while the separate pressure inserts – the so‑called “tongues” – provide optimal clamping force and long‑lasting stability. Manufactured from high‑quality galvanized ductile cast iron, the clamp combines exceptional strength with effective corrosion resistance, guaranteeing durability even under intensive use. When correctly installed and paired with a properly selected hose and fitting, the system achieves a working pressure of up to 25 bar, making it a dependable choice for environments where safety and performance are paramount. This advanced design not only enhances operational reliability but also minimizes downtime, offering users a cost‑effective and professional solution for fluid handling systems.