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RS 210 is a sectional open center valve, designed for max. operating pressures up to 4,350 psi (300 bar) and max. pump flows up to 20 gpm (75 Lpm).

RS 210 is available with 1 to 10 working sections per valve assembly.

The valve can be used in different systems for parallel as well as tandem circuits. It is designed with an open center for fixed and variable displacement pumps.

The valve can be operated manually, with cable or by pneumatic and electropneumatic or electrohydraulic remote control.

RS 210 offers excellent operating characteristics because of the specially designed spools for different applications.

Low and uniform spool forces are the result of careful balancing of the flow forces.
Unit of Measure

Specifications

Brands

 N/A HYDAC

Pressures/Flows

Maximum Operating Pressure per Port (P1, P2, P3, P4, A, B)

 N/A 4,350 psi300 bar

Maximum Operating Pressure per Port (T1, T2, T3, T4)

 N/A 300 psi20 bar

Note for Maximum Operating Pressure per Port

 N/A Inlets type A and intermediate sections M uses "A" and "B" designation for P and T connections. Consider the detailed information for the respective part in this data sheet.

Typical Nominal Inlet Flow Rate (P1, P2 Inlets Type A, B, C, E)

 N/A 20 gpm75 L/min

Typical Nominal Inlet Flow Rate (P1, P4 Inlets Type Q)

 N/A 20 gpm75 L/min

Fluid Temperature

 N/A 5 to 176 ºF-15 to 80 ºC

Technical Data

Nominal Spool Stroke (±)

 N/A 0.25 in6 mm

4th Position Spool Stroke (+)

 N/A 0.45 in12 mm

Spool Control Force at Neutral Position (9M1)

 N/A 24.7 lb110 N

Spool Control Force at Maximum Spool Stroke (9M1)

 N/A 31.5 lb140 N

Detent In

 N/A >67.4 lb>300 N

Detent Out

 N/A <22.5 lb<100 N

Permissible Contamination Level

 N/A Equal or Better than 20/18/14 as per ISO 4406
Viscosity1 N/A 0.4 to 15.7 in²/s10 to 400 mm²/s
Leakage2 N/A ≤ 13 cm³/min

Pressure Fluid

 N/A Mineral Oil and Synthetic Oil Based on Mineral Oil HL, HLP according to DIN 51524

Q-Function

Q-Function

 N/A The flow control (Q-function) of the inlet section by-passes the major part of the pump flow to tank when the system is idling, still giving access to full pump flow when the services are operated. Besides greatly reducing heat generation this also provides improved controllability characteristics.

Properties and Possibilities

Properties and Possibilities

 N/A
  • Several different in- and outlet alternatives offering possibility for electrical unloading, connecting and dimensional flexibility
  • Very wide program of different spools optimized for various pump flows, applications, system alternatives, etc.
  • Spool controls for external kick-out and spool position sensing
  • Load checks in each working section
  • High pressure carry-over
  • Left hand and right hand side inlet

Applications

Applications

 N/A The RS 210 is ideal for applications where you need excellent control characteristics such as cranes, excavators, backhoe loaders, refuse trucks and trailers.

Note

N/A Higher values are possible, depending on application.

  • 1 Higher viscosity allowed at start up
  • 2 A, B → T at 1,500 psi, 32 cSt and 104 ºF (100 bar, 32 cSt and 40 ºC)