Product Overview
The Rexroth A-VSO-DE-G-12-MP-100 (R988131653) is a dual counterbalance valve engineered for precise load holding and controlled motion in hydraulic circuits. Manufactured by Bosch Rexroth, this pressure control valve is designed to prevent uncontrolled load descent, provide static and dynamic load holding, and enable smooth, cavitation-free lowering of overrunning loads. The dual configuration allows independent control of two separate actuator lines within a single compact manifold body, making it ideal for applications requiring synchronized or independently managed load-holding functions. The valve operates on a pilot-assisted, pressure-balanced principle, where an external pilot signal opens the check valve to permit reverse flow only when sufficient pilot pressure is applied, ensuring safe and repeatable operation in demanding industrial environments.
Technical Specifications
| Parameter | Specification / Feature |
|---|---|
| Component Type | Hydraulic Valve – Pressure Control Valve (Dual Counterbalance Valve) |
| Model Designation | A-VSO-DE-G-12-MP-100 / R988131653 |
| Manufacturer | Bosch Rexroth |
| Operating Pressure | Standard Industrial Grade (Up to 350 bar rated) |
| Nominal Size | NG12 (DIN 24340 / ISO 4401 interface) |
| Mounting & Connection | Standard ISO / Manufacturer Interface – Subplate or Manifold Mounting |
| Control Type | Pilot-assisted, pressure-balanced poppet / spool design |
| Adjustment | Factory-set or adjustable pressure setting (MP = manifold preset) |
Engineering Features & Advantages
- Precision Load Holding: Dual counterbalance design provides reliable static and dynamic load holding on two independent actuator lines, preventing drift and uncontrolled descent under varying load conditions.
- Pilot-Assisted Smooth Lowering: Integrated pilot ratio ensures controlled opening of the check valve, enabling smooth, cavitation-free lowering of overrunning loads with minimal pressure overshoot.
- Industrial Reliability: Built for continuous operation under severe industrial conditions, with hardened internal components and robust sealing for long service life in high-cycle applications.
- Direct Fit Replacement: Exact dimensional and functional compatibility with original OEM Rexroth standards, ensuring drop-in replacement without modification to existing manifolds or piping.
- Compact Dual Configuration: Two counterbalance functions housed in a single NG12 body, reducing installation space and piping complexity compared to two separate valves.
Typical Industrial Applications
This dual counterbalance valve is commonly deployed in heavy industrial scenarios requiring safe load holding and controlled motion, including: plastic injection molding machines (clamp and ejector circuits), metallurgical presses and rolling mills (counterbalance and holding functions), construction and marine hydraulics (boom, outrigger, and winch load holding), and CNC machine tools (vertical axis and tool changer load retention
PRODUCT IMAGES
Rexroth A-VSO-DE-G-12-MP-100 / R988131653 Dual Counterbalance Valve
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