Valves type Z 2 FS 6 are double throttle/check valves in sandwich plate design. This valve is suitable for vertical stacking assembly and is used for inlet or outlet meter-out control. As a result of two long-term cooperation with Rexroth, this throttle Z2FS 6 matches Rexroth in performance and can replace Rexroth® Z2FS6 3XB series. It is an affordable alternative for Rexroth.
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Technical data (for applications outside these parameters, please consult us!) |
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Size |
6 |
16 |
22 |
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Maximum flow (L/min) |
80 |
250 |
350 |
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Maximum working pressure(MPa) |
31.5 |
35 |
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Pressure fluid |
Mineral oil(for NBR seal),or phosphate ester(for FPM seal) |
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Viscosity range(mm ²/s) |
10 to 800 |
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Fluid temperature range(℃) |
-30 to+80 |
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Features:
▶ Sandwich plate design
▶ Porting pattern to DIN 24 340, from A, ISO 4401 and CETOP - RP 121H
▶ Limiting of main or pilot flow with two service ports
▶ Meter-in or meter-out control.
Application:
Throttle check valves Z2FS 6 are used to limit main or pilot oil flow at one or two service ports.
Two symmetrically arranged throttle/check valves limit flow (by means of adjustable throttle spools) in one direction and permit free return flow in the other direction.
Main flow limiting
The double throttle/check valve is fitted between the directional valve and the subplate to change the speed of an actuator (main flow limiting).
Pilot flow limiting
In the case of pilot operated directional valves, the double throttle/check valve may be used as a pilot choke adjustment (pilot flow limiting). In this case, it is fitted between the main valve and the pilot valve.
Structure of Double throttle/check valve, Type Z2FS6 30B
Principle of Hydraulic systems
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