Echuan Hydraulic
Echuan Hydraulic Machinery Co., Ltd.
No. 53 Shuikou Avenue, Huizhou, Guangdong, China
Tel +86-752-2399772 · WhatsApp +86-13422935851
[email protected] · www.echuan-hydraulic.com
Product Data Sheet

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Product Description

Rexroth FD16KA21/B03V R900503974

The Rexroth FD16KA21/B03V (R900503974) is a high-performance 2-way flow control valve designed to maintain a constant flow rate, largely independent of system pressure and fluid temperature variations. This pressure-compensated valve ensures precise hydraulic control, making it suitable for a wide array of industrial applications where stable actuator speeds or consistent flow regulation is critical. It features a rotary knob with a scale for straightforward and accurate manual adjustment of the flow. Engineered for subplate mounting, the FD16KA21/B03V offers robust construction and reliable operation in demanding hydraulic systems.

Technical Specifications:

  • Product Code: R900503974
  • Valve Type: 2-way flow control valve, pressure compensated
  • Series: FD
  • Nominal Size: NG16
  • Model Code Breakdown: FD16KA21/B03V
    • FD: Flow Control Valve
    • 16: Nominal Size 16
    • K: 2-way design
    • A: Flow direction A to B
    • 21: Series/Design code (Rotary knob with scale)
    • B03: Specific design/feature code (often related to mounting or internal configuration)
    • V: FKM (Viton) seals
  • Adjustment Type: Rotary knob with scale
  • Sealing Material: FKM (Viton)
  • Maximum Operating Pressure: 315 bar (4568 psi)
  • Maximum Flow Rate: Up to 160 L/min (42.3 GPM)
  • Mounting Type: Subplate mounting
  • Connection Pattern: Conforms to ISO 5781-08-11-0-00
  • Hydraulic Fluid: Mineral oil (HL, HLP) to DIN 51524; other fluids on request. Phosphate ester compatibility with FKM seals.
  • Hydraulic Fluid Temperature Range (with FKM seals): -20°C to +100°C (-4°F to +212°F)
  • Viscosity Range: 2.8 to 380 mm²/s

Rexroth FD16KA21/B03V R900503974 - Image 1

Rexroth FD16KA21/B03V R900503974 - Image 2

Rexroth FD16KA21/B03V R900503974 - Image 3

Rexroth FD16KA21/B03V R900503974

Model:Rexroth FD16KA21/B03V R900503974

BrandRexroth
ModelFD16KA21/B03V R900503974
Part No.Rexroth FD16KA21/B03V R900503974
CategoryHydraulic valves
Linkhttps://www.echuan-hydraulic.com/product/rexroth-fd16ka21-b03v-r900503974
Request a quote: [email protected] · WhatsApp +86-13422935851 · Tel +86-752-2399772
All brand names and model numbers are the property of their respective manufacturers and are used for identification only. Pictures are for reference; confirm specifications before ordering.