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VFD190 Series Variable Priority Flow Dividers VFD190RD400S3 SINGLE PACK | TSK6434-145

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Description & Features

The VFD190RD400S3 belongs to Webtec's VFD190 Series of variable priority flow dividers, designed to regulate hydraulic actuator speeds by adjusting flow distribution across a circuit. Capable of handling flows from 0 to 150 L/min (0 to 40 US gpm) at pressures up to 420 bar (6,000 psi), this single-pack unit is well suited to demanding mobile and industrial hydraulic systems.

Construction centres on a cast ductile iron body housing steel internal components, finished with an aluminium adjustment knob and painted black. NBR and PTFE seals support compatibility with mineral oils conforming to ISO 11158, across a fluid temperature range of -30 to 120 °C (-22 to 248 °F). The 1-5/16 inch -12UN #16 SAE ORB porting integrates cleanly into standard hydraulic circuits, and the unit weighs 3.75 kg (8.3 lbs). Ambient service is rated from -30 to 50 °C (-22 to 122 °F).

SKU: TSK6434-145

Supplier Part Number (MPN): VFD190RD400S3

Specifications

Brand
Webtec
Pack Size
1.00
UOM
EA
Ambient Temperature
-30 to 50 °C, -22 to 122 °F
Body Materials
Steel components in cast Ductile Iron body painted black Aluminium knob
Compatible Fluid
Mineral oils to ISO 11158
Flow Range (US gpm)
0 - 40
Flow Range (L/min)
0 - 150
Fluid Temperature Range
-30 to 120 °C, -22 to 248 °F
Gross Weight
3.75 kg, 8.3 lbs
Internal Materials
Steel components
Maximum Rated Flow
150 L/min, 40 US gpm
Max Rated Pressure
420 bar, 6000 psi
Net Weight
3.75 kg, 8.3 lbs
Porting
1-5/16” -12UN #16 SAE ORB
Seals
NBR / PTFE
Product Weight
0.99 lbs

Related Documents

Product Questions & Answers (1)

Question by: Ross K on Feb 26, 2026, 2:59 PM
what's the pressure rating on the VFD190RD400S3? running a pretty high-demand circuit and want to make sure it'll hold up
Answer by: Customer Support on Feb 28, 2026, 11:48 AM
Rated to 420 bar, which is 6000 psi. That's a solid ceiling for most industrial hydraulic circuits, including high-load applications. Flow capacity tops out at 150 L/min, or 40 US gpm, so both figures are worth cross-checking against your system's peak demands.