BOSCH REXROTH
R900221122

$1,330.09 USD

BOSCH REXROTH
Material:R900221122
Model:2FRM 6 SB36-3X/16QMV

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.

***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 2FRM6SB36-3X/16QMV (R900221122) is a precision-engineered flow control valve designed to maintain a consistent flow rate regardless of pressure and temperature fluctuations. This particular model is part of the FRM series, which is characterized by its robust construction that includes a housing, rotary knob for adjustment, orifice bush, and an integrated pressure compensator. An optional check valve feature is available for applications requiring unidirectional flow. The 2FRM6SB36-3X/16QMV valve operates by throttling the flow from channel A to channel B at a designated point, with the throttle cross-section being adjustable via the rotary knob. The downstream pressure compensator ensures that the flow in channel B remains constant by balancing forces within the system. This balance is achieved through continuous compensation for any changes in pressure in channel A, resulting in reliable and steady operation. Additionally, this model features a return flow from channel B to channel A through the check valve when necessary. The type FRM SBX..RV porting pattern conforms to DIN form A standards and offers various options for threaded connections suitable for control panel installation. It also comes with different adjustment types including a rotary knob with scale or a lockable rotary knob with scale. With its size and component series X designation, this Bosch Rexroth valve can handle maximum operating pressures up to bar levels and accommodate maximum flow rates measured in liters per minute. Designed for precision and reliability, the 2FRM6SB36-3X/16QMV provides effective control of fluid dynamics in complex hydraulic systems without sacrificing performance due to external conditions.

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 (8).

Flow control valve type 2FRM 6 SB…RV

(without external closing, with check valve, with threaded connectionfor control panel installation)

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.

The free return flow from channel B to channel A is directed via the check valve (8).

Type 2FRM 6 SB76-3X/..RV

technical illustration-R900221122-Porting pattern according to DIN 24340 form A Subplates (separate order) As threaded port for control panel installation with connection thread G3/8 Check valve, optional 2 adjustment types, optional:<br>
– Rotary knob with scale<br>
– Lockable rotary knob with scale

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 for control panel installation	A
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	1.5
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 SB…MV
with check valve; without external closing Type 2FRM 6 SB…RV

Threaded port for control panel installation – version "SB"

Dimensions in mm

1	Adjustment type "3" (lockable rotary knob with scale)
2	Adjustment type "7" (rotary knob with scale)
4	Space required to remove the key
6	Name plate
9	Connection thread G3/8 according to ISO 228-1
10	Position of the marking vis-à-vis name plate

Control panel installation:

Valve mounting screws (separate order)

4 hexagon socket head cap screws

ISO 4762 - M5 - 8.8-flZn-240h-L

at friction coefficient μtotal = 0.09 to 0.14,

Tightening torque MA = 7 Nm ± 10 %,

(minimum usable thread depth = 6.5 mm)

Subplates (separate order)

Type G 341/01 (G1/4)

Type G 342/01 (G3/8)

Type G 502/01 (G1/2)

BOSCH REXROTHR900221122