R983032409 2FRM6B36-2X/1.5QRV-IN001 German Rexroth hydraulic lock
Price:
Negotiable
MOQ:
1
Delivery Time:
2 weeks
Brand:
Rexroth
Product Description
R983032409 2FRM6B36-2X/1.5QRV-IN001 German Rexroth Hydraulic Lock
Product Overview
This is a pressure-compensated flow control valve (2-way throttle check valve) designed for precise flow regulation in hydraulic systems. It provides constant flow in one direction and free reverse flow via an integrated check valve.
Technical Specifications
| Parameter | Value |
|---|---|
| Full Part Number | R983032409 (IN001 = individual inspection suffix) |
| Base Model | 2FRM 6 - B36 - 2X / 1.5QRV |
| Valve Type | 2-way throttle check valve with pressure compensator (flow control valve) |
| 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 | B36 = Rotary knurled knob with scale & lock setscrew (hand-adjustable) |
| Component Series | 2X (series 20+, dimensionally interchangeable) |
| Max. Adjustable Flow | 1.5 L/min (fine metering — Q range typically 0.02-1.5 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.) | 1.2 kg |
| Body Material | Steel / cast iron, zinc-plated |
Product Image
Related Part Numbers
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R900205516 2FRM6B36-33/3QMV
R900205517 2FRM6B36-31/3QRV
R900205518 2FRM6B36-31/6QMV
R900205519 2FRM6B36-31/6QRV
R900205520 2FRM6B76-30/10QMV
R900205521 2FRM6B76-33/16QMV
R900205522 2FRM6B76-33/16QRV
R900205523 2FRM6B76-33/25QMV
R900205524 2FRM6B76-33/25QRV
R900205525 2FRM6B76-33/32QMV
R900205526 2FRM6B76-33/32QRV
R900205527 2FRM6B76-30/6QMV
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R900205580 2FRM6B36-30/0.2QRV
R900208589 2FRM6A76-33/16QRV
R900209088 2FRM6B76-30/3QMV
R900209842 2FRM6A36-30/25QRV
R900209925 2FRM6A76-30/10QMV
R900209926 2FRM6A76-31/3QMV
R900209927 2FRM6B76-31/10QRV
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Frequently Asked Questions
Q1: Is this a hydraulic lock / pilot check valve (double block-and-bleed)?
No. A hydraulic lock / pilot-operated check valve is Rexroth type SV / SL. This item (2FRM6) is a pressure-compensated flow control valve — it meters flow in one direction and allows free return in the other. It does not lock a cylinder in position.
Q2: What does "/1.5QRV" and "B36" mean?
- B36 = NG6 sandwich, rotary knurled knob with scale (0-max) + locking setscrew — adjustable by hand
- /1.5 = maximum adjustable flow = 1.5 L/min (very fine metering — used for creep-speed, pilot supply, or small actuator feed)
- 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 setscrew, turn the knurled knob clockwise to increase flow, counterclockwise to decrease. The knob has a relative scale — use a flow meter to calibrate against actual L/min. Retighten the lock setscrew after setting.
Q4: How is it mounted?
As a sandwich (stackable) valve between a directional control valve and the NG6 subplate, same bolt pattern as ZDR/Z2FS sandwiches (4× M5). Observe the arrow on the valve body — A→B = controlled/metered flow, B→A = free return.
Q5: Does it compensate for load pressure changes?
Yes — the integrated pressure compensator (spool) keeps the set flow essentially constant despite changes in load (downstream) pressure or supply pressure fluctuations, provided system pressure ≥ load pressure + ~15-20 bar ΔP across the compensator.
Q6: Common faults & causes?
- Flow varies with load: compensator spool stuck (contamination) — check oil filtration (ISO 4406 18/16/13 or better); or insufficient ΔP across compensator (<15 bar)
- No / very low flow at max knob: valve installed backwards, or compensator/spool jammed from dirt
- Cannot reach 1.5 L/min or flow unstable: partially clogged orifice (very small at low flows — fine filtration critical), excessive viscosity (cold start)
- Excessive heat: normal for flow controls — pressure drop × flow = heat; ensure system pressure isn't unnecessarily high above what load requires
Q7: Looking for an actual hydraulic lock (pilot check / overcenter valve)?
You likely need Rexroth SV … (cartridge pilot check) or SL … (sandwich pilot check / dual pilot check) for cylinder locking — not the 2FRM series. Let me know if you need that instead.
Q8: Fluid & seal compatibility?
NBR seals = mineral oil (HL/HLP) & HFC (water-glycol). For HEES/HETG bio-oils or HFD → specify FKM (Viton) seal variant.
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Company
Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.
Location
Nan'an, Fujian Province, China
Contact Person
liyun