REXROTH HSZ16B550-3X/S-200M01 R900911981

Rexroth Hydraulic Control Cover for Pressure Relief Valves

Description

This is a Rexroth HSZ 16 B550-3X/S-200M01, a high-quality control cover designed for use with pilot-operated pressure relief valves like the DB and DBW series. Engineered in Germany, it ensures precise and reliable control over system pressure, protecting your hydraulic machinery from overpressure conditions. This component is essential for maintaining operational safety and efficiency in a wide range of industrial applications.

Specifications

• Manufacturer: Rexroth
• Type: Hydraulic Control Cover
• Model: HSZ 16 B550-3X/S-200M01
• Material Number (MNR): R900911981
• Series: 3X
• Maximum Pressure Setting: 200 bar
• Connection: Subplate mounting

Label Info

• FD (Factory Date): 08W42

Application

This control cover is typically used in general industrial machinery, machine tools, and manufacturing systems where precise hydraulic pressure control is critical.

Country of Origin

Made in Germany.

CO2 Impact

By purchasing this pre-owned item, you help avoid the production of a new one, saving an estimated 24 kg of CO2 emissions. This is comparable to the emissions of a 120 km car journey.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

Question?

What is the primary function of the HSZ 16 control cover?

Answer:
The HSZ 16 acts as a pilot control for a larger, main-stage pressure relief valve. It determines the precise pressure at which the main valve will open to relieve excess system pressure, functioning as the ‘brain’ of the pressure relief operation.

Question?

What does “S-200M01” in the type number signify?

Answer:
This part of the model code specifies the configuration. The ‘S’ indicates an adjustment element with a protective cap, and ‘200’ designates the maximum adjustable pressure setting of 200 bar. The ‘M01’ refers to specific internal seal and porting options.

Question?

Can this -3X series control cover be replaced with a newer series?

Answer:
While Rexroth has released newer series (e.g., -4X), direct interchangeability is not guaranteed. There could be minor differences in dimensions, performance characteristics, or porting. It is crucial to consult the official Rexroth datasheets for both series to confirm compatibility before attempting a replacement.

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Last Update: Friday, March 13, 2026