You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today.

SUN HYDRAULICS
DRBMCWN


$131.45 USD
  • SUN HYDRAULICS
  • Material:DRBMCWN
  • Model:DRBM-CWN
  • Summary:Cartridge

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics DRBMCWN (DRBMCWN) is a normally open, direct-acting, 2-way directional cartridge valve designed for moderate flow circuits. This versatile component can function independently or be utilized to actuate larger pilot-operated directional cartridges or logic cartridges. It operates by shifting when the pressure differential between port 1 and port 4 surpasses the set threshold. Notably, port 3 can serve as a work port, with a bidirectional flow path between ports 2 and 3. The direct-acting design ensures low internal leakage and minimal pilot flow consumption. This valve is interchangeable with its pilot-operated counterparts, fitting the same cavities and maintaining consistent flow paths. The DRBMCWN features Sun's floating style construction, reducing the risk of internal parts binding due to excessive installation torque or machining variations in the cavity/cartridge. It is capable of modulating between two positions but is not bistable. The maximum pressure at port 3 should not exceed 3000 psi (210 bar) due to fatigue strength limits rather than hydraulic operating constraints. Key specifications include a T-21A cavity, Series 1 classification, and a capacity of up to 7 gpm (28 L/min). Factory pressure settings are established at a flow rate of 4 gpm (15 L/min). The valve supports a maximum operating pressure of 5000 psi (350 bar), with leakage rates limited to 2 in\u00b3/min (30 cc/min) at an oil viscosity of 110 SUS (24 cSt). Adjustment involves up to five clockwise turns to increase the setting. The valve's hex size is .78 inches (22.2 mm), with an installation torque range of 30\u201335 lbf-ft (41\u201347 Nm). The adjustment screw requires a .156-inch (4 mm) internal hex size, while the locknut has a hex size of .562 inches (15 mm) and torque specification of 80\u201390 lbf-in (9\u201310 Nm). The model weighs approximately .55 lbs (.25 kg) and comes with a Viton seal kit option: part number 990021006.

Normally open, direct-acting, 2-way directional cartridges are switching devices typically used in moderate flow circuits. They can be used by themselves or to actuate larger pilot operated directional cartridges or logic cartridges. The valve shifts when the pressure differential between port 1 and port 4 exceeds the setting.

  • Port 3 can be used as a work port.
  • The flow path between port 2 and port 3 is bidirectional.
  • Because of their direct-acting design, these cartridges feature low internal leakage and low pilot flow consumption.
  • Direct-acting and pilot-operated versions of these valves are interchangeable. They fit the same cavities and have the same flow paths.
  • Pressure at port 4 is directly additive to the setting of the valve.
  • This valve is not bistable; it is capable of modulating between the two positions shown.
  • Maximum pressure at port 3 should be limited to 3000 psi (210 bar). This is due to fatigue strength limits not hydraulic operating limits.
  • Incorporates the Sun floating style construction to minimize the possibility of internal parts binding due to excessive installation torque and/or cavity/cartridge machining variations.

Cavity T-21A
Series 1
Capacity 7 gpm28 L/min.
Factory Pressure Settings Established at 4 gpm15 L/min.
Maximum Operating Pressure 5000 psi350 bar
Maximum Valve Leakage at 110 SUS (24 cSt) 2 in³/min.30 cc/min.
Adjustment - Number of Clockwise Turns to Increase Setting 55
Valve Hex Size 7/8 in.22,2 mm
Valve Installation Torque 30 - 35 lbf ft41 - 47 Nm
Adjustment Screw Internal Hex Size 5/32 in.4 mm
Locknut Hex Size 9/16 in.15 mm
Locknut Torque 80 - 90 lbf in.9 - 10 Nm
Model Weight .55 lb0,25 kg
Seal kit - Cartridge Viton: 990-021-006

Show FAQ