REXROTH MS 0 821 200 014

Rexroth G 1/4 Throttle-Check Valve – MS Series

Description

This is a high-quality throttle-check valve, model 0 821 200 014, from the Rexroth MS series. It is designed for precise control of airflow in pneumatic systems, specifically for exhaust air throttling. This allows for fine-tuned speed control of pneumatic cylinders and actuators. The valve provides throttled flow in one direction and free, unrestricted flow in the opposite direction thanks to its integrated check valve. Its robust construction ensures reliability and a long service life in demanding industrial environments.

Specifications

• Manufacturer: Rexroth (now Aventics)
• Series: MS
• Type: Throttle-Check Valve
• Port Connection: G 1/4
• Function: Exhaust air throttling
• Housing Material: Die-cast aluminum
• Sealing Material: Acrylonitrile butadiene rubber (NBR)
• Adjustment: Manual rotary knob

Label Info

• Brand: Rexroth
• Part Number: 0 821 200 014
• Codes: 9180, 885

Application

Ideal for applications requiring precise speed regulation of pneumatic actuators, such as in conveyor systems, packaging machinery, and automated assembly lines. It is typically installed directly on the cylinder port.

Country of Origin

Made in France.

CO2 Impact

By choosing this pre-owned component, you are preventing the emission of approximately 1.8 kg of CO2 associated with the production of a new one. This is a smart choice for both your budget and the environment.

Availability

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

FAQ

What is the function of the check valve in this component?

The integrated check valve allows compressed air to flow freely in one direction, completely bypassing the throttle (needle valve). In the opposite direction, the check valve closes, forcing the air through the adjustable throttle, which controls the flow rate.

Can this valve be used for supply air throttling?

While technically possible, it is designed for exhaust air throttling. Using it to control supply air can lead to jerky, uneven movement (‘slip-stick’ effect) in pneumatic cylinders, especially at low speeds or with high loads.

What is the typical maximum operating pressure for this MS series valve?

Valves in this series are typically rated for a maximum operating pressure of 10 bar (1 MPa). However, it is always best to consult the official manufacturer’s datasheet for the specific part number to confirm operating parameters.

Last Update: Friday, March 13, 2026

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