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- Adams - Model RZN - Check Valve
Adams - Model RZN -Check Valve
The RZN has an excellent record of reliability in critical applications where other check valves have failed. The duo-eccentrically mounted disc is hydrodynamically 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.
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Nominal Diameters:
- 500 mm / 20 inches to 3000 mm / 120 inches
Temperature Range:
- -50°C / -58°F to +200°C / +392°F
Pressure Class:
PN 2,5/6/10/16/25/40 ANSI 150/300
- 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
- complete pump protection
- low flow loss
- progressive sealing system
- axial pressure balanced shaft seals for low friction
- auto-closing
- damper adjustment locking
- additional screw safety device
- prepared for retro-fitting of counterweights if flow conditions change
- damping system for opening
- pneumatic or hydraulic power pack for positive operation
- disc locking device, mansafe design
- additional counterweight
- vulcanized hard rubber coating
- butt weld ends
- amping system for opening
- flow control valves
- disc locking device, mansafe design
- additional counterweight
- vulcanized hard rubber coating
- butt weld ends