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{"title":"R901411433 4WRPEH10C4B100L-3X\/M\/24A1 German Rexroth hydraulic proportional valve","imgUrl":"https:\/\/img.chinax.com\/nimg\/68\/a4\/8c3461bc6f9bc81e09e96d98f2fa-200x200-1\/r901411433_4wrpeh10c4b100l_3x_2fm_2f24a1_german_rexroth_hydraulic_proportional_valve.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"R901411433 4WRPEH10C4B100L-3X\/M\/24A1","Certification":"ISO","Place of Origin":"German"}}
{"title":"R900549534 4WE6HA6X\/EG24N9K4 Rexroth electromagnetic directional valve","imgUrl":"https:\/\/img.chinax.com\/nimg\/7e\/56\/4b1b49ff95486c1c15d9c0050144-200x200-1\/r900549534_4we6ha6x_2feg24n9k4_rexroth_electromagnetic_directional_valve.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"4WE6HA6X\/EG24N9K4","Certification":"ISO","Place of Origin":"China"}}
{"title":"R901507310 4WRPEH10C3B100L-3X\/M\/24F1 Proportional directional valve from Rexroth","imgUrl":"https:\/\/img.chinax.com\/nimg\/c8\/a3\/f42def7c61c59509f011c5e03e46-200x200-1\/r901507310_4wrpeh10c3b100l_3x_2fm_2f24f1_proportional_directional_valve_from_rexroth_2c_germany.jpg","attrs":{"Brand Name":"Rexroth","Model Number":"R901507310 4WRPEH10C3B100L-3X\/M\/24F1","Certification":"ISO","Place of Origin":"Germany"}}
Q1: Is this a pilot-operated or direct-acting relief valve?
It is a direct-acting seat valve (DBD series) – no pilot stage. The spring-loaded poppet/ball opens immediately when system pressure exceeds the spring preload.
Q2: What does "P1X / 315" mean?
P1 = adjustment type: hexagon socket with protective cap (Allen key adjustable)
1X = component series index (dimensionally interchangeable within series 1X)
/315 = spring pressure stage, maximum settable relief pressure = 315 bar
Q3: How do I adjust the relief pressure?
Depressurize the system, remove the protective cap, turn the internal setscrew with an Allen key – clockwise to increase, counterclockwise to decrease. Reinstall the cap and verify with a pressure gauge at the P-port. Factory preset is typically near the low end of the spring range; always adjust on-site.
Q4: Which subplate is required?
Use a standard NG20 (Size 20) subplate per ISO 6264 with P and T ports. The valve mounts via four M12 bolts (tightening torque approx. 70-80 N*m). Subplate port threads are commonly G 3/4" BSP or M27×2.
Q5: Does T-port backpressure affect the set pressure?
Yes. The spring chamber drains internally to the T-port, so any backpressure at T adds 1:1 to the relief/cracking pressure. Example: set to 200 bar with 15 bar T-backpressure → actual response at 215 bar. Keep T-line backpressure minimal or compensate in the setpoint.
Q6: Common fault symptoms & causes?
Pressure won't reach set value: wrong spring grade (not /315), high T-backpressure, poppet sticking due to contaminated oil, damaged seating, or broken spring
Continuous dribble / leak: damaged seating surface, aged O-ring, or contamination trapped in the seat – clean or replace
Chatter / noise: air in the system, flow exceeding ~250 L/min, or line resonance – bleed air and confirm flow rating
Q7: Fluid & seal compatibility?
Standard NBR seals suit mineral oil (HL/HLP) and HFC (water-glycol). For HEES/HETG biodegradable oils or HFD phosphate ester, FKM (Viton) seals are required – order the "V" seal variant if needed.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Total Annual:
1 million-10 millon
Employee Number:
>50
Ecer Certification：
Verified Supplier
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha... Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd. has been established for many years and has now developed into an international trading company supplying various hydraulic machinery parts, oil pumps and valves. We are one of the few Chinese companies with multiple products and cha...
