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DIN DN50 PN25 Carbn Steeol Flange Bellow Seal Globe Valve

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- Material: Cast Steel GS-C25
- Size Range:DN50
- Pressure Rating: PN25
- Temperature Range: -29°C to 425°C
 
Availability:
Quantity:
  • J41H

  • OEM/ZJFV

Bellow Seal Globe Valve, EN 13709, DIN 3356, DN50

Description: This bellows sealed ball valve is designed to prevent medium leakage from the valve stem by providing a sturdy seal. The lower end of the bellows is welded to the valve stem, and the upper end is welded to the gland plate. Metal spiral packing is usually installed between the gland and the upper flange to ensure a tight seal. This design ensures strong sealing performance and minimal leakage.
characteristic:
As a key component, the metal bellows are automatically rolled and welded to the valve stem at the lower end and to the connecting plate at the upper end, forming a metal barrier between the fluid medium and the atmosphere, ensuring that the valve stem is leak free.
The valve disc is designed with parallel surfaces to improve sealing performance and extend service life.
The valve adopts a dual seal design (corrugated pipe with packing), which can prevent leakage even if the corrugated pipe fails, meeting international sealing standards.
The valve cover includes a lubrication joint that can directly lubricate the valve stem, nut, and shaft sleeve, unlike traditional methods that can only lubricate the threads.
The handwheel adopts ergonomic design, enhancing durability, ease of operation, and safety.
Technical standards:
Nominal diameter (DN): DN50, 2 inches
Nominal pressure (PN): PN25, Class 300LB
Design and Manufacturing: EN 13709, DIN 3356
Flange standards: EN 1092-1, DIN 2501
Testing and Inspection: EN 12266, DIN 3230

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