REXROTH R900423723 DBDS6K1X/100

The Bosch Rexroth DBDS 6 K1X/100 (R900423723) is a high-performance direct operated screw-in cartridge pressure relief valve designed for hydraulic applications requiring precise pressure control and reliable operation. This valve is part of the DBD.K product family, which is known for its robust construction and versatility in various hydraulic systems. It features a maximum operating pressure of 315 bar (4568 psi) and can handle a maximum flow of 100 l/min (26.4 gpm), making it suitable for systems with high flow demands. The valve operates by utilizing a sleeve, spring, and poppet with damping piston or ball to regulate system pressure. The desired pressure setting can be finely adjusted via the bushing with hexagon and protective cap, ensuring stepless control over the system's pressure levels. The spring-loaded mechanism ensures that when the system pressure exceeds the set value, the poppet or ball opens, allowing excess hydraulic fluid to flow from channel P to T. This specific model employs NBR sealing material and is categorized as normally closed in its normal position. It supports various types of hydraulic fluids such as HL, HLP, HLPD, HVLP, HVLPD, and HFC. Designed for ease of use and safety, the adjustment options include not only a bushing with hexagon and protective cap but also other variants such as rotary knob, hand wheel, or lockable rotary knob. With its G1/4 ports number and compatibility with Mx cavities, this direct acting relief valve is versatile for integration into different hydraulic circuits. Additionally, it has been engineered to ensure that adjustment elements remain securely in place even when completely unloaded due to its gimbal mounting design. The Bosch Rexroth DBDS 6 K1X/100 valve stands out for its reliability in maintaining system pressures within safe limits while providing users with multiple adjustment options to meet specific application requirements.

PRESSURE RELIEF VALVE DBDS 6 K1X/100

Pressure relief valve, direct operated

Unpacked Weight: 0.378301 kg

As screw-in cartridge valve (cartridge) For threaded connection For subplate mounting Adjustment type for pressure adjustment, optionally:
‒ Sleeve with hexagon and protective cap
‒ Rotary knob
‒ Hand wheel
‒ Lockable rotary knob

Pressure relief valves of type DBD are direct operated seat valves. They are used for limiting a system pressure.

The valves basically consist of sleeve (1), spring (2), poppet with damping piston (3) (pressure rating 25 bar … 400 bar) or ball (4) (pressure rating 630 bar) and adjustment type (5). The system pressure can be set steplessly via the adjustment type (5). The spring (2) pushes the poppet (3) or the ball (4) onto the seat. Channel P is connected to the system. The pressure existing in the system acts on the poppet surface (or the ball). If the pressure in channel P exceeds the value set at the spring (2), the poppet (3) or the ball (4) opens against the spring (2). Now, hydraulic fluid from channel P flows into channel T. The stroke of the poppet (3) is limited by the embossing (6).

In order to achieve good pressure adjustment over the entire pressure range, the entire pressure range has been divided into 7 pressure ratings. One pressure rating corresponds to a certain spring for a maximum operating pressure that can be set by means of that spring.

Type DBDS..K1X/…

Version pressure rating 25 … 400 bar (poppet seat valve)

Type DBDH 10 K1X/…

Version pressure rating 630 bar (ball seat valve, only NG10)

Notices:

The adjustment type (5) is constructed so that it cannot be lost. Due to the gimbal-mounting, the adjustment element remains loose (movable) in the adjustment type (5) in case of complete unloading. Pressure rating “25”: If despite completely unloaded adjustment type, the minimum pressure does not settle, the adjustment element has to be “pulled back” to the stop due to the low spring and/or restoring force. For pressure adjustment / increase, the adjustment element can then be screwed in again.