The DELTA VPN check valve prevents liquid reflux within processing pipelines. It opens automatically under liquid pressure acting on a spring-loaded valve disc and closes when the forward flow stops, triggered by the preloaded spring mechanism.
Design and Value
This compact valve design includes minimal components and serves as a cost-effective alternative to the DELTA RUF3 valve—ideal for hygienic and industrial flow control applications.
Housing, valve, disc, guide, cover are made of stainless steel grades 1.4571 / 1.4404 (DIN EN 100888). Available seal materials are EPDM and Viton. Nominal dimensions: DN 25 DN 100 and ISO 1 4.
