Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.
| Packaging Details | wooden box |
| Supply Ability | 100 |
| Max. Operating Pressure | 315 bar (ports A & B) |
| Payment Terms | Western Union,T/T,D/P,D/A,L/C |
| Cracking Pressure (Reverse Check) | approx. 0.5 bar (standard free-return) |
| Delivery Time | 2 weeks |
| Max. Adjustable Flow | 10 L/min (Q range typically 0.2–10 L/min) |
| Fluid Temperature Range | -30 °C to +80 °C (NBR seals) |
| Component Series | 2X (series 20+, dimensionally interchangeable) |
| Model Number | R901508500 2FRM6B76-2X/10QRV-IN001 |
| Certification | ISO |
| Brand Name | Rexroth |
| Place of Origin | German |
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Product Specification
| Packaging Details | wooden box | Supply Ability | 100 |
| Max. Operating Pressure | 315 bar (ports A & B) | Payment Terms | Western Union,T/T,D/P,D/A,L/C |
| Cracking Pressure (Reverse Check) | approx. 0.5 bar (standard free-return) | Delivery Time | 2 weeks |
| Max. Adjustable Flow | 10 L/min (Q range typically 0.2–10 L/min) | Fluid Temperature Range | -30 °C to +80 °C (NBR seals) |
| Component Series | 2X (series 20+, dimensionally interchangeable) | Model Number | R901508500 2FRM6B76-2X/10QRV-IN001 |
| Certification | ISO | Brand Name | Rexroth |
| Place of Origin | German |
|
Parameter |
Value |
|---|---|
|
Full Part Number |
R901508500 (IN001 = individual inspection suffix) |
|
Base Model |
2FRM 6 - B76 - 2X / 10QRV |
|
Valve Type |
2-way throttle check valve with pressure compensator (flow control — constant flow despite pressure fluctuations) |
|
Nominal Size (NG) |
6 — sandwich mounting per ISO 6263 / NG6 (DIN 24340 Form C) |
|
Function |
Adjustable orifice + pressure-compensated spool → constant flow A→B; free reverse flow B→A via check valve |
|
Adjustment Type |
B76 = Rotary knurled knob with scale & tamper-lockable / sealable cap (hand-adjustable; same perf. as B36) |
|
Component Series |
2X (series 20+, dimensionally interchangeable) |
|
Max. Adjustable Flow |
10 L/min (Q range typically 0.2–10 L/min) |
|
Max. Operating Pressure |
315 bar (ports A & B) |
|
Cracking Pressure (Reverse Check) |
approx. 0.5 bar (standard free-return) |
|
Mounting Pattern |
NG6 sandwich (4× M5 bolts), between directional valve & subplate |
|
Seal Material |
NBR (standard, code V — 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.) |
1.24 kg |
|
Body Material |
Steel / cast iron, zinc-plated |
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| R900216502 2FRM6SB36-30/10QRV |
| R900216559 2FRM6A76-30/16QMV |
| R900216628 2FRM6A36-30/1.5QMV |
| R900217537 2FRM6A76-30/32QMV |
| R900217646 2FRM6A76-30/0.6QRV |
| R900217917 2FRM6A76-30/6QMV |
| R900218302 2FRM6B36-3X/6QJRV |
| R900218309 2FRM6B76-33/0.2QMV |
| R900218348 2FRM6A36-30/16QMV |
| R900219518 2FRM6B36-30/10QJRV |
| R900220974 2FRM6B36-30/16QJMV |
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| R900221106 2FRM6SB36-30/0.6QMV |
| R900221107 2FRM6SB36-30/1.5QMV |
| R900221109 2FRM6SB36-31/3QMV |
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| R900221121 2FRM6SB36-31/10QMV |
| R900221122 2FRM6SB36-3X/16QMV |
| R900221125 2FRM6SB36-33/25QMV |
| R900221126 2FRM6SB36-3X/32QMV |
| R900221127 2FRM6SB36-33/0.2QRV |
| R900221128 2FRM6SB36-33/0.6QRV |
| R900221130 2FRM6SB36-3X/3QRV |
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| R900221137 2FRM6SB36-30/16QRV |
| R900221139 2FRM6SB36-30/25QRV |
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| R900420286 2FRM10-30/50L |
| R900420287 2FRM16-30/100LB |
| R900421173 2FRM6A36-2X/6QMV |
| R900423250 2FRM10-31/10LB |
| R900423251 2FRM10-31/16L |
| R900423252 2FRM10-30/16LB |
Q1: Is this a simple throttle / needle valve?
No. A needle valve lets flow vary with ΔP. The 2FRM is pressure-compensated — the built-in compensator spool keeps the set flow essentially constantdespite load or supply pressure changes (provided ≥~15 bar ΔP across compensator).
Q2: What does "B76 /10QRV" mean?
B76 = NG6 sandwich, rotary knurled knob with scale + tamper-lockable / sealable cap.
/10 = maximum adjustable flow = 10 L/min (also avail: /1.5, /3, /6, /16, /25, /32).
Q = flow controlled in A→B direction.
R = free reverse flow B→A via check valve.
V = NBR seals (standard).
Q3: How do I set the flow?
Loosen the lock ring / seal wire, turn the knurled knob clockwise to increase flow, counterclockwise to decrease. The knob has a relative scale — use a flow meter to correlate to actual L/min. After setting, tighten the lock ring / apply seal wire.
Q4: How is it mounted?
As a sandwich (stackable) valve between a directional control valve and the NG6 subplate (4× M5 bolts). Observe the arrow on the valve body — A→B = controlled/metered flow, B→A = free return.
Q5: Does it work both ways?
No — one direction is pressure-compensated metered flow (A→B), the opposite direction (B→A) is free return through the check valve (no flow control, minimal pressure drop ~0.5 bar). For bidirectional flow control use two 2FRM valves.
Q6: Minimum pressure requirement?
The pressure compensator typically needs min. ~15 bar differential pressure across the compensator to regulate properly. Supply pressure must exceed the highest load pressure + ~15–20 bar + line losses.
Q7: Common faults & causes?
Flow varies with load pressure: compensator spool stuck (contamination) — check oil filtration (ISO 4406 18/16/13 or better); or insufficient ΔP across compensator.
No flow / very low at max knob: valve installed backwards, or compensator/spool jammed.
Cannot reach set flow / unstable: partially clogged orifice, cold-start high viscosity — flush system.
Excessive heat: normal for flow controls — P_drop × Q = heat; ensure supply pressure isn't unnecessarily high above load requirement.
Q8: What is the difference between B36 and B76?
Both have identical flow characteristics and knob. B76 has a tamper-evident / sealable lock cap for applications where the setting must not be altered after commissioning. B36 has a standard lock setscrew only.
Q9: Fluid & seal compatibility?
NBR seals = mineral oil (HL/HLP) & HFC (water-glycol). For HEES/HETG biodegradable oils or HFD phosphate ester → specify FKM (Viton) seal variant.
Company Details
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...
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