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Check valves

Check valves

Flex Check® products are high-performance miniature check valves that can be easily and safely pressed into bore holes. They are completely made of stainless steel and are available in various sizes, opening pressures and installation types. The valves are versatile and suitable for liquids and gases.

The Flex Check® Zero Leak has integrated an additional plastic sealing element while maintaining exactly the same dimensions and is completely leak-free.

Here you can find our Flex-Check brochure.

USP's

Features

Große_Auswahl_an_Größen.jpg

Wide variety of models

Flex Check® high performance check valves are available in various sizes and designs and are therefore suitable for a wide range of applications and media.

  • Scaled design with sizes from 4.5 to 10 mm
  • Standard sizes: 5.5 and 8.0 mm diameter
  • Opening pressures from 0 to 1 bar with 3 standard pressures: 0, 0.14 and 0.4 bar
  • 2 installation types: Flow towards (forward) and against the installation direction (reverse)
  • Zero Leak – leak-free valve for liquids and gases
Große_Auswahl_an_Größen.jpg

Simple installation

Flex Check® high performance check valves are simply inserted into the bore and pressed in with the pre-assembled pin. This results in a tight and resilient connection with great advantages:

  • The 2-stage bore does not require any time-consuming machining, such as thread cutting.
  • No sealing necessary – a simple and inexpensive solution.
  • The valves hold securely even at high pressures and are absolutely tight over the long term.
  • Replacement of the valve is not necessary due to the very long service life of more than 10 million cycles. 
Flow_Curve.jpg

Maximum performance and precision

[Translate to English:]

Flex Check® high performance check valves are optimised for maximum flow, completely made of stainless steel and manufactured with the highest precision.   

 

  • Very high flow rates: 2.2 l/min (H2O @ 2 bar, continuous) at 5.5 mm nominal diameter
  • Very fast valve response due to 360° free opening gap
  • 2 to 3 times higher flow rates than comparable valves with pulsating flows
  • Very accurate opening pressures with tolerances of +/- 30 % in standard and +/- 10 % as an option /P
  • Low leakage rates on standard metal-to-metal seat valve
  • 100% leakage-free for gases and liquids with Version Z ("Zero Leak")

 

Flow_Curve.jpg

Solutions for special requirements

Custom solutions are our speciality.

In addition to our standard range and options, we also offer special application-specific designs:

  • Special opening pressures
  • Front panel for pressure reduction
  • Metal filters
  • Special materials
  • Special constructions

Contact us for your individual needs. We would be happy to help you.

Spez_Anforderungen.jpeg
Spez_Anforderungen.jpeg

Performance data

Functions And Applications

Non-return valves

  • Pumps in general
  • Fuel pumps
  • Compressors
  • Hydraulic motors

Pressure amplifiers, pressure controllers

  • Brake boosters
  • Pressure boosters in general
  • Automatic transmissions
  • Hydraulic jacks

Flow control

  • Hydraulic control valves
  • Cylinder head lubrication systems
  • Engine cooling systems
  • Fluid return lines

Analysis & gas technology

  • Ventilation
  • Gas analysis technology
  • Fluid separation
Check valves

Product Specification

Check valves

Products

TypÖffnungsdruckModelcodeD1 (mm)D2 (mm)L1 (mm)L2 (mm)L3 (mm) Step File Data Sheet Price Info Availability Options Order
5.5 mm Reverse Flow0.00 barFR055-0005.64.58.87.3n.a.
2 weeks delivery time
Request
0.14 barFR055-014
2 weeks delivery time
Request
0.40 barFR055-040
2 weeks delivery time
Request
5.5 mm Reverse Flow, Zero Leak0.00 barFR055Z-000
2 weeks delivery time
Request
0.14 barFR055Z-014
2 weeks delivery time
Request
0.40 barFR055Z-040
2 weeks delivery time
Request
5.5 mm Forward Flow0.00 barFF055-0005.43.98.7
2 weeks delivery time
Request
0.14 barFF055-014
2 weeks delivery time
Request
0.40 barFF055-040
2 weeks delivery time
Request
5.5 mm Forward Flow, Zero Leak0.00 barFF055Z-000
2 weeks delivery time
Request
0.14 barFF055Z-014
2 weeks delivery time
Request
0.40 barFF055Z-040
2 weeks delivery time
Request
8.0 mm Reverse Flow0.00 barFR080-0008.156.612.810.62n.a.
4 weeks delivery time
Request
0.14 barFR080-014
4 weeks delivery time
Request
0.40 barFR080-040
4 weeks delivery time
Request
8.0 mm Reverse Flow, Zero Leak0.00 barFR080Z-000
4 weeks delivery time
Request
0.14 barFR080Z-014
4 weeks delivery time
Request
0.40 barFR080Z-040
4 weeks delivery time
Request
8.0 mm Forward Flow0.00 barFF080-0007.95.6712.7
4 weeks delivery time
Request
0.14 barFF080-014
4 weeks delivery time
Request
0.40 barFF080-040
4 weeks delivery time
Request
8.0 mm Forward Flow, Zero Leak0.00 barFF080Z-000
4 weeks delivery time
Request
0.14 barFF080Z-014
4 weeks delivery time
Request
0.40 barFF080Z-040
4 weeks delivery time
Request
Evaluation Kit (4 Ventile + Einpresswerkzeug)0, 0.14 oder 0.4 barEK FR0555.64.58.87.3n.a.
2 weeks delivery time
EK FR055Z
2 weeks delivery time
EK FF0555.43.98.7
2 weeks delivery time
EK FF055Z
2 weeks delivery time
EK FR0808.156.612.810.62n.a.
2 weeks delivery time
EK FR080Z
2 weeks delivery time
EK FF0807.95.6712.7
2 weeks delivery time
EK FF080Z
2 weeks delivery time

FR055 Options

Option Description Code File Price in CHF Price in %
High Precision

Hochgenauer Öffnungsdruck +/- 10%

/P

FR055Z Options

Option Description Code File Price in CHF Price in %
High Precision

Hochgenauer Öffnungsdruck +/- 10%

/P

FF055 Options

Option Description Code File Price in CHF Price in %
High Precision

Hochgenauer Öffnungsdruck +/- 10%

/P

FF055Z Options

Option Description Code File Price in CHF Price in %
High Precision

Hochgenauer Öffnungsdruck +/- 10%

/P

FR080 Options

Option Description Code File Price in CHF Price in %
High Precision

Hochgenauer Öffnungsdruck +/- 10%

/P

FR080Z Options

Option Description Code File Price in CHF Price in %
High Precision

Hochgenauer Öffnungsdruck +/- 10%

/P

FF080 Options

Option Description Code File Price in CHF Price in %
High Precision

Hochgenauer Öffnungsdruck +/- 10%

/P

FF080Z Options

Option Description Code File Price in CHF Price in %
High Precision

Hochgenauer Öffnungsdruck +/- 10%

/P

RV-SPEZ Options

Option Description Code File Price in CHF Price in %
High Precision

Hochgenauer Öffnungsdruck +/- 10%

/P
Ohne Käfig

Ohne Feder und Federkäfig

/Y001
6Kt-Adapter

Verpresst in 6Kt-Adapter SW14-L30, Durchgang D5.0, Anschlüsse Male G1/8 mit FKM O-Ring, Female NPT1/8

/Y002
1.4404 / NF-Feder/ FKM

Ventil aus 1.4404 / Korrosionsbeständige NF-Feder/ FKM Dichtung

/Y003
1.4404 / NF-Feder/ PTFE Dichtung

Y004: Ventil aus 1.4404 / Korrosionsbeständige NF-Feder/ PTFE Dichtung

/Y004
Slim Pin

Slim Pin für reduzierte Einpressung

/Y005
FF Screen 125mcr

Screen 125mcr Maschenweite in Pin eingearbeitet

/Y006
Keramikkugel

Material Keramikkugel wird noch spezifiziert

/Y007
Changed opening pressure

Optionaler Öffnungsdruck bis max. 2 bar

/Y008

Evaluation Kits Options

Option Description Code File Price in CHF Price in %
0 bar

0 bar Öffnungsdruck

-000
0.14 bar

0.14 bar Offnungsdruck

-014
0.4 bar

0.4 bar Öffnungsdruck

-040