PHARMACEUTICAL CHECK VALVE

Application

The 72700 valve is a check valve that allows the fluid to flow through it only in one direction.
These valves are normally used to prevent the loss of prime of a pump and to avoid water hammer. The valve is widely used in water loops.

Operating principle

The check valve opens when the pressure of the fluid exceeds the cracking pressure exerted by the spring. When the two pressures are compensated, the valve closes. A higher counterpressure closes the valve.
When there are two pumps operating alternately, the check valves are installed at the outlet of each pump to prevent the backflow when the pump is stopped. The obturation shaft is provided with a perforation for minimum circulation flow to avoid water stagnancy.

Design and features

3A certified valve.
Easy assembly/disassembly by loosening the clamp.
Reduced size design.
Standard connections: Clamp OD.
Traceability of components.

Materials

Parts in contact woth the product   AISI 316L
Other st.st. parts                              AISI 304
Spring                                                  AISI 301
Gasket                       EPDM according to FDA 177.2600
Internal surface finish                       Ra ≤ 0,5 µm
External surface finish                      machined

Options

Gaskets: NBR, FPM or PTFE.
Welding connections
Perforation in the valve cone.
Material and surface roughness certificates.
ATEX version.

Technical specifications

Sizes                                 DN 1" - DN 4"
Working temperature    -10 ºC to +121 ºC (EPDM)    14 ºF to 250 ºF
                                        +140 ºC (SIP, max. 30 min)  284 ºF
Max.working pressure   10 bar 145 PSI
Opening pressure           0,3 bar (DN 1")                    4,35 PSI 
                                        0,2 bar (DN 1½")                  2,9 PSI          
                                        0,1 bar (DN 2" - DN 4")        1,45 PSI

Data sheet	ESENFRITDERUPL
Instructions manual	ESENFRITDERUPL