CHECK VALVE

 Applications

A check valve is a valve that prevents the fluid from flowing back and ensures that if flows in only one direction. It can be used to prevent the loss of prime of the pump and to avoid pipe-hammering.
It is used in the food-processing, beverages, wine-making, oil-making, cosmetics, pharmaceutical and chemical industries.

Operating principle

The valve opens when the pressure of the fluid in the exceeds the pressure exerted by the pump spring. When the two pressures are equalised, the valve closes.
A stronger counter-pressure allows the valve to close.

Design and features

Available in sizes DN-25/1" to 100/4".
Easy disassembly.
Low-size construction.
DIN -11851 connections (standard).

Materials (standard version)

Casing/shaft                 AISI 316L
Spring                            AISI 301
Seal                                EPDM according to FDA 177.2600
Surface finish                Ra 0,8 μm

Options

Seals in NBR, FPM or PTFE. All of them according to FDA 177.2600
Connections: weld, DIN, Clamp, SMS, RJT, FIL-IDF…

CERTIFICATES               

Data sheet	ESENFRITDERUPL
Instructions manual	ESENFRITDERUPL