Product Line

WEH®TVR400 screw-in valve with flow rate in the direction of screw rotation
for hydraulic and pneumatic applications

 
Take advantage of the unique functionality

COMPACT & SPACE-SAVING

Their compact design means that the check valves take up very little space and are thus very cost-effective.

Manufactured from high-quality materials and 'Made in Germany', the check valves are very durable and robust, making them ideal for industrial use.

HIGH FLOW RATE IN THE DIRECTION OF SCREW ROTATION

The screw-in valves are mechanical shut-off valves which allow the media to flow freely and at a high flow rate in the direction of screw rotation from a cracking pressure of 0.5 bar, and simultaneously shut off the flow of the media in the other direction.

TVR400 (DN = 3.6 mm): Kv = 0.286 (Cv = 0.331)
Drop in pressure in bar
Discharge in m3/h (water)
TVR400 (DN = 6 mm): Kv = 0.640 (Cv = 0.743)
Drop in pressure in bar
Discharge in m3/h (water)
TVR400 (DN = 7 mm): Kv = 1.203 (Cv = 1.395)
Drop in pressure in bar
Discharge in m3/h (water)

The flow curves were determined according to the standards DIN/EN 60534-2. The curves refer to cavitation-free flow (water). Constrictions at the inlet and outlet reduce the flow rate.

SOFT-SEALING

The screw-in valves are soft-sealing thanks to a spring-loaded sealing cone with an O-ring. Unlike metallically sealing valve seats, they are characterised by high leak tightness and low leakage.

max. +300°C
max. 250 bar

HIGH TEMPERATURES AND PRESSURES

Hydraulic und pneumatic applications with temperatures of up to max. + 300 °C and pressures up to max. 250 bar do not present a problem.

EASY INSTALLATION

Installation is very easy. The check valves can simply be screwed into bores with internal thread using an Allen key. The screw-in valves are available in different connection sizes.

G1/8" - G3/8" male
M10x1.0 - M18x1.5 male

APPLICATIONS

The TVR400 screw-in valves are ideal for hydraulic and pneumatic applications in the following areas:

  • Mechanical and plant engineering
  • Medical technology
  • Material handling
  • Chemicals and pharmaceuticals industry

FUNCTION VIDEO

The WEH® TVR400 is a compact screw-in valve which, with a compelling soft-sealing design and high leak tightness, being ideal for applications in the high-temperature sector.

TECHNICAL DATA

Nominal bore DN3.6 | 6 | 7 mm
Max. operating pressure PS250 bar
Cracking pressure PC0.5 bar ± 0.2 bar
Temperature range-20 °C up to max. +200 °C (up to max. +300 °C on request)
Leak rateMax. 1x10-3 mbar x l/s (gas-tight)
MaterialsStainless steel 1.4305
Spring materialStainless steel 1.4310
Sealing materialFKM
Valve seatCone seal with internal O-ring
Flow directionIn direction of screw rotation
ApprovalsComplies with PED 2014/68/EU
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Data sheet
 
Market-tested technology for over 40 years

Quality by WEH - Made in Germany

WEH has always been synonymous with top quality. Thanks to our policy of only using high-quality materials in our processes and with all our products boasting the “Made in Germany” seal, our products satisfy the highest quality requirements.

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