RZI
The RZI provides adjustment for each damping rate and also timing-of-rate increase during check valve closure.
This means, the RZI can be tuned to precisely match the closing characteristics required by a pump installation to avert excessive pressure surge.
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
Features:
- non-return valve with multirate adjustable interval damping system- resilient seal or laminated metal-to-metal seal
- triple offset design with inclined conical sealing system
- three adjustable independent damping rates
- auto-closing
- damper adjustment locking
Advantages:
- controlled, non-slam closure- adjustable closing characteristic
- additional screw safety device
- prepared for retro-fitting of counterweights, if flow conditions change
- longevity, even for frequent cycle operation
Options:
- 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
For further technical information or purchasing details, please contact your local Adams representative or Adams Valves, Inc.