RZI
Proven design
The proven design of the RZN is the basis for check valve RZI, which can be installed in large-diameter or high-pressure pipelines and are equipped with a multirate, adjustable, interval-damping system for particularly critical applications.
The check valve 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.
- DN500 / 20" to DN3000 / 120"
- -50°C / -58°F to 200°C / 392°F
- PN2,5/6/10/16/25/40
- ANSI 150/300
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
Features of the check valve RZI
- 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
Brochures
ADAMS Product range
Hydrogen brochure
