2FRM6B76-3X/0,9QMVSO21

Manufacturer: Bosch Rexroth

Material #: R900212888

Model : 2FRM6B76-3X/0,9QMVSO21

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth 2FRM6B76-3X/09QMVSO21 (R900212888) is a highly precise flow control valve designed for maintaining consistent flow regardless of pressure and temperature fluctuations. This model, part of the FRM series, features a robust housing and is equipped with a rotary knob for easy adjustment of the throttle cross-section. The valve ensures a pressure-independent and constant flow in channel B by integrating a pressure compensator downstream of the throttling point. This compensator automatically adjusts to balance forces and maintain steady flow even when there are changes in the pressure within channel A. The 2FRM6B76-3X/09QMVSO21 valve operates without external closing and does not include a check valve, making it suitable for applications where unidirectional flow control is required. For bidirectional flow control, an additional rectifier sandwich plate type ZS can be installed beneath this valve. The product's design adheres to DIN form A porting pattern standards, ensuring compatibility with various subplates available by separate order. This specific model offers flexibility with optional features such as a lockable rotary knob with scale for secure settings. It boasts an impressive maximum operating pressure of up to several hundred bar and can handle maximum flow rates of several tens of liters per minute (exact specifications may vary). With these capabilities, the Bosch Rexroth 2FRM6B76-3X/09QMVSO21 is engineered to deliver reliable performance in controlling fluid dynamics across a wide range of hydraulic applications.

$2,501.00 USD

More are expected on April 28, 2025

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Status: This product is temporarily out of stock.

Qty: Delivered as early as April 28, 2025 when ordered in

This product is eligible for factory repair.

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Porting pattern according to DIN 24340 form A Subplates (separate order) Check valve, optional 2 adjustment types, optional:
– Rotary knob with scale
– Lockable rotary knob with scale

General information

The flow control valve type 2 FRM is a 2-way flow control valve.

It is used for maintaining a constant flow, independent of pressure and temperature.

The valve basically consists of housing (1), rotary knob (2), orifice bush (3), pressure compensator (4) and an optional check valve.

Flow control valve type 2FRM 6 B…MV

(without external closing, without check valve)

The flow from channel A to channel B is throttled at the throttling point (5). The throttle cross-section is set by turning the rotary knob (2). To ensure a pressure-independent and constant flow in channel B, a pressure compensator (4) is fitted downstream of the throttling point (5).

The compression spring (6) presses the pressure compensator (4) downwards against its stop and keeps the pressure compensator (4) in the open position when there is no flow through the valve. When fluid flows through the valve, the pressure acting in channel A applies a force to the pressure compensator (4) via orifice (7).

The pressure compensator (4) moves into the controlled position until the forces balance. If the pressure in channel A rises, the pressure compensator (4) moves in the closing direction until the forces are balanced again. Due to this continuous compensation of the pressure compensator (4), a constant flow is obtained.

In order to control a flow through the valve in both directions, a rectifier sandwich plate type Z4S 6 may be fitted below this flow control valve.

Type 2FRM 6 B76-3X/.MV

01	02	03	04	05		06		07	08	09	10
2FRM	6			6	–	3X	/			V	*

01	2-way flow control valve	2FRM
02	Size 6	6
03	without closing of the pressure compensator	B
Adjustment type
04	Lockable rotary knob with scale 1)	3
04	Rotary knob with scale	7
05	Zero position of the marking at port P	6
06	Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions)	3X
Flow (A → B)
07	up to 0.2 l/min	0,2Q
	up to 0.6 l/min	0,6Q
	up to 1.5 l/min	1,5Q
	up to 3.0 l/min	3Q
	up to 6.0 l/min	6Q
	up to 10 l/min	10Q
	up to 16 l/min	16Q
	up to 25.0 l/min	25Q
	up to 32.0 l/min	32Q
08	With check valve	R
08	Without check valve	M
Seal material
09	FKM seals (other seals upon request)	V
09	Observe compatibility of seals with hydraulic fluid used.
10	Further details in the plain text	*

	1) Key with material no. R900008158 is included in the scope of delivery.

Preferred types and standard units are contained in the EPS (standard price list).

general

Size		6
Weight (approx.)	kg	1.3
Installation position		any
Ambient temperature range	°C	-20 … +50

hydraulic

Size			6
Maximum operating pressure 1)	Anschluss A	bar	315
Pressure differential Δp with free return flow B → A			See characteristic curves
Minimum pressure differential		bar	6 … 14
Pressure stable (qV max) to Δp = 315 bar		%	± 2
Maximum flow		l/min	0.2	0.6	1.5	3	6	10	16	25	32
Minimum flow	up to 100 bar	l/min	0.01				0.03	0.05	0.07	0.1	0.25
Minimum flow	up to 315 bar	l/min	0.03					0.05	0.07	0.1	0.05
Hydraulic fluid			Mineral oil (HL, HLP) according to DIN 51524, other hydraulic fluids on request
Hydraulic fluid temperature range		°C	-20 … +80
Viscosity range		mm²/s	10 … 800
Maximum admissible degree of contamination of the hydraulic fluid 2)			Class 20/18/15 according to ISO 4406 (c)

1)	In applications with rectifier sandwich plate up to 210 bar
2)	The cleanliness classes specified for the components must be adhered to in hydraulic systems. Effective filtration prevents faults and simultaneously increases the life cycle of the components. For the selection of the filters, see www.boschrexroth.com/filter.

For applications outside these parameters, please consult us!

(measured with HLP46, ϑOil = 40 ±5 °C)

Flow dependent on the scale setting (flow control A → B)

Δp-qV characteristic curve via check valve (B → A) orifice closed

pE-qV characteristic curve

Temperature dependency at Δp = 20 bar

	simplified	Detailed
without check valve; without external closing Type 2FRM 6 B…MV
with check valve; without external closing Type 2FRM 6 B…RV

Subplate mounting – version “A” and “B”

Dimensions in mm

1	Adjustment type "3" (lockable rotary knob with scale)
2	Adjustment type "7" (rotary knob with scale)
3	Identical seal rings for ports A, B, P, and T
4	Space required to remove the key
5	Bore Ø3 mm at version "B" not bored (without external closing)
6	Name plate
7	Position of the marking at port P
8	Porting pattern according to DIN 24340 form A

Subplate mounting:

Valve mounting screws (separate order)

without rectifier sandwich plate

4 hexagon socket head cap screws

ISO 4762 - M5 x 30 - 10.9-flZn-240h-L

at friction coefficient μtotal = 0.09 to 0.14,

Tightening torque MA = 7 Nm ± 10 %,

Material no. R913000316

with rectifier sandwich plate

4 hexagon socket head cap screws

ISO 4762 - M5 x 70 - 10.9-flZn-240h-L

at friction coefficient μtotal = 0.09 to 0.14,

Tightening torque MA = 7 Nm ± 10 %,

Material no. R913000325

Subplates (separate order)

Type G 341/01 (G1/4)

Type G 342/01 (G3/8)

Type G 502/01 (G1/2)