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Z2FS16-8-3X/S2

单向节流阀。
规格 16
元件系列3X。
最高工作压力350 bar。
最大流量250 l/min。

数量：
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型号：
Z2FS16-8-3X/S2
品牌：
Rexroth
订货号：
R900457256

叠加板式阀。
油口布置符合ISO 4401-07-07-0-05。
限制两个执行器油口的流量。
调节方式：内六角调节螺杆。
进油节流或回油节流。

Z2FS型阀是叠加板式单向节流阀，用于限制一个或两个执行器油口的流量。

两个对称布置的单向节流阀，通过可调节流阀芯限制一个方向的流量，并允许反向自由回流。

采用进油节流时，液压油从通道 A➀ 经节流点（1）流向执行器 A➁。可通过螺杆（3）轴向调节节流阀芯（2.1），以改变节流点（1）的开度。

同时，通道 A➀ 中的液压油经孔（4）导向活塞侧（5）。

作用压力及弹簧力使节流阀芯（2.1）保持在节流位置。

执行器B➁的回油推动节流阀芯（2.2），使其作为单向阀允许无阻流动。根据S或S2版本，节流作用可发生在进油或回油方向。

流量限制

为调节执行器速度，节流单向阀安装在换向阀与底板之间。

进油节流

➀	component side
➁	plate side

01	02	03	04	05	06		07		08	09	10	11
Z	2	FS	16		8	–	3X	/				*

01	Sandwich plate valve	Z
Number of functions
02	2 (throttling in channel A and/or B)	2
03	Throttle check valve	FS
04	Size 16	16
Functions in
05	Channel A	A
	Channel B	B
	Channel A and B	–
Adjustment type
06	Spindle with internal hexagon	8
07	Component series 30 ... 39 (30 ... 39: unchanged installation and connection dimensions)	3X
Supply throttling / discharge throttling
08	Supply throttling on side A ("…A8–3X/S")	S
	Supply throttling on side B ("…B8–3X/S")
	Supply throttling on side A and B ("…–8–3X/S")
	Discharge throttling on side A ("…A8–3X/S2")	S2
	Discharge throttling on side B ("…B8–3X/S2")
	Discharge throttling on side A and B ("…–8–3X/S2")
Corrosion resistance (outside)
09	None (valve housing primed) (standard)	no code
09	Improved corrosion protection (240 h salt spray test according to EN ISO 9227)	J3
Seal material
10	NBR seals	no code
	FKM seals	V
	Observe compatibility of seals with hydraulic fluid used. (Other seals upon request)
11	Further details in the plain text	*

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

一般

Size			16
Weight (approx.)		kg	4.7
Installation position			any
Ambient temperature range	NBR seals	°C	-30 … +80
Ambient temperature range	FKM seals	°C	-20 … +80

液压

Size			16
Maximum operating pressure		bar	350
Maximum flow		l/min	250
Hydraulic fluid			see table
Hydraulic fluid temperature range	NBR seals	°C	-30 … +80
Hydraulic fluid temperature range	FKM seals	°C	-20 … +80
Viscosity range		mm²/s	2.8 … 380
Maximum admissible degree of contamination of the hydraulic fluid 1)			Class 20/18/15 according to ISO 4406 (c)

1)	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.

Hydraulic fluid		Classification	Suitable sealing materials	Standards	Data sheet
Mineral oils		HL, HLP	NBR, FKM	DIN 51524	90220
Bio-degradable	Insoluble in water	HEES 2)	FKM	ISO 15380	90221
Bio-degradable	Soluble in water	HEPG 2)	FKM	ISO 15380	90221
Containing water	Containing water	HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620) 2)	NBR	ISO 12922	upon request
Important information on hydraulic fluids: Further information and information on the use of other hydraulic fluids on request! There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.)! The flash point of the hydraulic fluid used must be 40 K higher than the maximum solenoid surface temperature. Flame-resistant – containing water: Maximum pressure differential 210 bar, otherwise increased cavitation Pressure pre-loading at the tank port >20 % of the pressure differential; otherwise, increased cavitation Life cycle compared to operation with mineral oil HL, HLP 30 to 100 %

2) Not for version "J3"

(如需在这些数值以外的工况下使用，请咨询我们！)

Dimensions in mm

1	Name plate
2	Adjustment type "8“ Spindle for changing the flow cross-section (internal hexagon SW6) Left rotation = higher flow Right rotation = lower flow
3	Through holes for valve mounting
4	Identical seal rings for ports A, B, P, T
5	Identical seal rings for ports X, Y, L
6	Locking pin (included in the scope of delivery)
7	Hexagon SW19, tightening torque MA see table
8	Porting pattern according to ISO 4401-07-07-0-05
9.1	Plug screw with version "B"
9.2	Plug screw with version "A"

Version “Corrosion resistance”	L1	L2	L3	L4	L5	L6	Pos. 7 MA in Nm ±10 %
	mm	mm	mm	mm	mm	mm	Nm
"no code"	224	248	224	248	246	294	25
„J3“	227	251	227	251	252	300	33

Valve mounting screws (separate order)

metric

4 hexagon socket head cap screws ISO 4762 - M10 - 10.9-flZn-240h-L

2 hexagon socket head cap screws ISO 4762 - M6 - 10.9-flZn-240h-L

4 hexagon socket head cap screws 3/8-16 UNC

2 hexagon socket head cap screws 1/4-20 UNC

Notice:

Length and tightening torque of the valve mounting screws must be calculated according to the components mounted under and over the sandwich plate valve.

产品分类

Z2FS16-8-3X/S2

一般

液压

(如需在这些数值以外的工况下使用，请咨询我们！)

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