RZN Valves

รหัสสินค้า : 418113


– non-return valve with controlled, non-slam closure

– resilient seal or laminated metal-to-metal seal

– triple offset design with inclined conical sealing system

– adjustable hydraulic damping system, located externally and separated from the media


The RZN has an excellent record of reliability in critical applications where other check valves have failed.

The duo-eccentrically mounted disc is hydrodynamical designed for low pressure loss and freedom from jamming at the seat. The special ADAMS damping system ensures tight and progressive shut-off against reverse flow and offers long service life.

The compact design allows installation in confined spaces. All internal screws on ADAMS non-return valves are mechanically locked.

Technical Data

Nominal Diameters:
150 mm / 6 inches to 1000 mm / 40 inches

Temperature Range:
-50°C / -58°F to +200°C / +392°F

Pressure Class:
PN 10/16/25/40/64 ANSI 150/300/600



– damping system for opening
– flow control valves
– disc locking device, mansafe design
– additional counterweight
– vulcanized hard rubber coating
– butt weld ends