RZI valves

รหัสสินค้า : 453063


– non-return valve with multi-rate 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


The proven design of RZI valves can be installed in large diameter or high pressure pipelines and are equipped with a multi-rate, adjustable, interval damping system for particularly critical applications.

It provide 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.

Technical Details:

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 150/30


– damping system for opening
– pneumatic or hydraulic power pack for positive operation
– disc locking device, man safe design

– additional counterweight
– vulcanized hard rubber coating
– butt weld ends