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R900941174 DBW10A1-5X/200-6EG24N9K4 German Rexroth electromagnetic overflow valve
R900941174 DBW10A1-5X/200-6EG24N9K4 German Rexroth electromagnetic overflow valve
Specifications
Model Number :
R900941174 DBW10A1-5X/200-6EG24N9K4
Weight (approx.) :
3.1 kg
Solenoid Type :
Wet-pin DC solenoid
Supply Ability :
100
Body Material :
Cast iron / steel, zinc-plated
Delivery Time :
2 weeks
Viscosity Range :
10–800 mm²/s
Certification :
ISO
Payment Terms :
Western Union,T/T,D/P,D/A,L/C
MOQ :
1
Packaging Details :
wooden box
Place of Origin :
German
Solenoid Voltage :
24 V DC (G24)
Brand Name :
Rexroth
Description
R900941174 DBW10A1-5X/200-6EG24N9K4 German Rexroth Electromagnetic Overflow Valve
High-performance pilot-operated pressure relief valve with integrated solenoid unloading function for industrial hydraulic systems.
Technical Specifications
Parameter Value
Part Number R900941174
Model DBW 10 - A1 - 5X / 200 - 6EG24N9K4
Valve Type Pilot-operated pressure relief valve with integrated solenoid unloading (DBW series)
Nominal Size (NG) 10 - subplate mounting per ISO 6264 / NG10
Function Pressure limiting + solenoid-actuated system unloading (energize solenoid → valve opens fully → tank, near-zero pressure)
Adjustment Type A1 = Hexagon socket with protective cap (Allen key adjustable, same as DB "2" type)
Component Series 5X (series 50-59, dimensionally interchangeable)
Max. Adjustable Relief Pressure 200 bar (adjustment range typically 4-200 bar)
Max. Operating Pressure (P-port) 350 bar
Max. Flow Rate (Qmax) Approx. 250 L/min (Size 10 DB/DBW series)
Pilot Oil Internal pilot supply, internal pilot drain (standard DBW)
Solenoid Type Wet-pin DC solenoid
Solenoid Voltage 24 V DC (G24)
Electrical Connection Plug-in socket per EN 175301-803 Form A (K4 = without connector plug, with indicator LED optional in mating plug)
Manual Override N9 = concealed manual override (push-button on coil)
Seal Material NBR (standard, for mineral oil HL/HLP, HFC)
Hydraulic Fluid Mineral oil HL, HLP per DIN 51524; HFC (water-glycol); HLPD, HVLP, HVLPD
Fluid Temperature Range -30 °C to +80 °C (NBR seals)
Viscosity Range 10-800 mm²/s
Weight (approx.) 3.1 kg
Body Material Cast iron / steel, zinc-plated
R900941174 DBW10A1-5X/200-6EG24N9K4 German Rexroth electromagnetic overflow valve
Related Part Numbers
R900768339 DBW10A1-5X/100S6EW230N9K4R12
R900978199 DBW10A1-5X/100U6EG24N9K4
R900731691 DBW10A1-5X/100XYU6EG24N9K4
R900941174 DBW10A1-5X/200-6EG24N9K4
R901014775 DBW10A1-5X/200-6EW230N9K4
R900775538 DBW10A1-5X/200U6EW230N9K4
R900965477 DBW10A1-5X/315-6EG24N9K4
R900969379 DBW10A1-5X/315-6EW230N9K4
R901220053 DBW10A1-5X/315S6EG24N9K4R12
R901019708 DBW10A1-5X/315U6EG24N9K4
R901206203 DBW10A1-5X/315U6EW230N9K4
R901076401 DBW10A1-5X/315Y6EG24N9K4
R900770685 DBW10A1-5X/350-6EG24N9K4
R901081986 DBW10A1-5X/350S6EG24N9K4R12
Frequently Asked Questions
Q1: What is the difference between DB10 and DBW10?
DB is a pilot relief valve only — it limits pressure. DBW adds an integrated directional solenoid valve on top: when the solenoid is energized the main stage is unloaded (system goes to tank at near 0 bar), when de-energized it functions as a normal relief valve at the set pressure.
Q2: What does "A1" mean vs "B1/B2"?
"A" = version for subplate mounting (NG10). "1" = adjustment type = hexagon socket with protective cap (Allen key). B1/B2 denote alternative performance characteristics or adjustment styles — functionally the same relief range but different trim curves. This unit is the A1 (cap-adjustable) version.
Q3: How do I adjust the relief pressure?
With the system off/depressurized, remove the protective cap, turn the setscrew with an Allen key — clockwise = increase, counterclockwise = decrease. Factory preset is typically near minimum of the spring range. Reinstall cap and verify with a gauge. The solenoid does NOT change the set pressure — it only enables/unloads the valve.
Q4: How does the solenoid function — normally open or closed?
Standard logic: Solenoid DE-energized = relief active at set pressure. Solenoid ENERGIZED = main valve unloaded → P connects to T, system pressure drops near tank pressure (unloading function). Verify your application's required logic before wiring.
Q5: Which subplate and electrical plug are needed?
  • Subplate: standard NG10 (ISO 6264) with P and T ports (G 1/2" or M18×1.5 on subplate), four M10 bolts @ ~35-40 N*m
  • Electrical: EN 175301-803 Form A (DIN 43650-A) 3-pin + PE connector (K4 type mating plug), 24 V DC. Polarity does not matter for DC solenoid, but indicator LED in the plug does — observe (+) / (-) markings on the plug if it has an LED
Q6: Common faults & causes?
  • Solenoid clicks but no unloading / system stays pressurized: pilot orifice clogged, main spool stuck, incorrect wiring (no current to coil — check with multimeter ~18-28 Ω typical), manual override not fully released
  • Pressure won't reach set value / creeps early: pilot damping hole blocked, contaminated pilot seat, wrong spring (/200 mis-ordered as lower range), excessive T-backpressure (internal pilot drain)
  • Coil gets hot / burnt smell: overvoltage (>10% above 24V), wrong voltage class plugged in, or coil mechanically damaged — replace coil only with correct G24 type
  • Chatter / instability: air in system, very high T-backpressure, or worn pilot seat — bleed air first
Q7: Can T-port backpressure affect the set pressure?
Yes — this model has internal pilot drain. Backpressure at T adds 1:1 to the relief setpoint. If your T-line has >5 bar sustained backpressure, consider the DBW…Y version (external pilot drain to separate tank line).
Q8: Fluid & seal notes?
NBR seals = mineral oil (HL/HLP) & HFC (water-glycol). For HEES/HETG biodegradable or HFD phosphate ester → specify FKM (Viton) seal variant. Maintain oil cleanliness per ISO 4406 code 18/16/13 or better.
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R900941174 DBW10A1-5X/200-6EG24N9K4 German Rexroth electromagnetic overflow valve

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Product Detail
Model Number :
R900941174 DBW10A1-5X/200-6EG24N9K4
Weight (approx.) :
3.1 kg
Solenoid Type :
Wet-pin DC solenoid
Supply Ability :
100
Body Material :
Cast iron / steel, zinc-plated
Delivery Time :
2 weeks
Contact Supplier
R900941174 DBW10A1-5X/200-6EG24N9K4 German Rexroth electromagnetic overflow valve

Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.

Verified Supplier
2 Years
fujian
Business Type :
Manufacturer, Exporter
Main Products :
Gear Pump, Rexroth Hydraulic Pump, Parker Denison Hydraulic Pump
Total Annual :
1 million-10 millon
Employee Number :
>50
Certification Level :
Verified Supplier
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