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R983032409 2FRM6B36-2X/1.5QRV-IN001 German Rexroth hydraulic lock

China R983032409 2FRM6B36-2X/1.5QRV-IN001 German Rexroth hydraulic lock

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R983032409 2FRM6B36-2X/1.5QRV-IN001 German Rexroth hydraulic lock

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Base Model	2FRM 6 - B36 - 2X / 1.5QRV
Packaging Details	wooden box
Max. Adjustable Flow	1.5 L/min (fine metering — Q range typically 0.02–1.5 L/min)
Supply Ability	100
Valve Type	2-way throttle check valve with pressure compensator (flow control valve)
Full Part Number	R983032409 (IN001 = individual inspection suffix)
Payment Terms	Western Union,T/T,D/P,D/A,L/C
Delivery Time	2 weeks
Nominal Size (NG)	6 — sandwich mounting per ISO 6263 / NG6 (DIN 24340 Form C)
Model Number	R983032409 2FRM6B36-2X/1.5QRV-IN001
Certification	ISO
Brand Name	Rexroth
Place of Origin	German

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Product Details
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Product Specification


Base Model	2FRM 6 - B36 - 2X / 1.5QRV	Packaging Details	wooden box
Max. Adjustable Flow	1.5 L/min (fine metering — Q range typically 0.02–1.5 L/min)	Supply Ability	100
Valve Type	2-way throttle check valve with pressure compensator (flow control valve)	Full Part Number	R983032409 (IN001 = individual inspection suffix)
Payment Terms	Western Union,T/T,D/P,D/A,L/C	Delivery Time	2 weeks
Nominal Size (NG)	6 — sandwich mounting per ISO 6263 / NG6 (DIN 24340 Form C)	Model Number	R983032409 2FRM6B36-2X/1.5QRV-IN001
Certification	ISO	Brand Name	Rexroth
Place of Origin	German
High Light	Rexroth hydraulic lock valve ，German Rexroth hydraulic valve ，Rexroth 2FRM6B36 hydraulic lock

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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R900205513 2FRM6B36-30/25QRV

R900205514 2FRM6B36-30/32QMV

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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

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R900205577 2FRM6B36-30/0.2QMV

R900205578 2FRM6B36-33/0.6QMV

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

R900210351 2FRM6A36-31/10QRV

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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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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Quanzhou Yisenneng Hydraulic Electromechanical Equipment Co., Ltd.
Nan'an, Fujian Province, China
https://www.electrichydpump.com/

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