CHECK VALVE SANDWICH PLATE Z2S16A1-5X/

Manufacturer: Bosch Rexroth

Material #: R900328798

Model : Z2S16A1-5X/

***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 Z2S16A1-5X (R900328798) is a high-performance, mechanically actuated industrial hydraulic valve designed for reliable blocking of oil flow at selected ports. This seat valve is directly actuated with a spool symbol A A and is capable of handling a maximum pressure with an electrical connection description that adheres to the specified product group ID. The valve features a number of ports and utilizes mechanical actuation. With its size A, the Z2S16A1-5X can manage a max flow rate that ensures efficient operation within hydraulic systems. Connection options for this interim assembly include NFPA T..R D SizeCETOP D and ISO standards, which facilitate easy integration into various setups. The valve also offers multiple switching positions and comes with NBR seals, making it compatible with hydraulic fluids such as HL, HLP, HLPD, HVLP, HVLPD, and HFC. The isolator valve type ZS serves as a releasable check valve in sandwich plate design. It allows free flow in directions A to A or B to B while blocking the opposite direction. This feature ensures leakage-free blocking even during extended periods of inactivity. The preopening function provides damped decompression of pressurized liquid to minimize potential switching shocks. This model is suitable for vertical stacking applications with porting patterns that comply with ISO standards. It offers various cracking pressures and comes with preopening capabilities. Additionally, check valve installation sets are available individually for this corrosion-protected design. Overall, the Bosch Rexroth Z2S16A1-5X stands out for its durability, versatility in application, and ability to maintain leak-free control over fluid dynamics in hydraulic systems.

$1,213.00 USD

More are expected on April 21, 2025

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CHECK VALVE SANDWICH PLATE Z2S16A1-5X/

Size 16, A1 → A2, mechanically actuated

Industrial hydraulic valve in a high performance range. Reliable blocking of the oil flow at selected ports.

Unpacked Weight: 6.741 kg

Sandwich plate valve for use in vertical stackings Porting pattern according to ISO 4401-07-07-0-05 For the leakage-free blocking of one or two actuator ports, optional Various cracking pressures With pre-opening Check valve installation sets available individually Corrosion-protected design

The isolator valve type Z2S is a releasable check valve in sandwich plate design.

It is used for the leakage-free blocking of one or two actuator ports, also in case of longer standstill times.

In direction A① to A② or B① to B②, there is a free flow; in the opposite direction, the flow is blocked.

If, for example, there is a flow through the valve in direction A① to A②, the control spool (1) is moved in the direction of the B side, opens the ball seat valve (2) and then pushes the poppet (3) off its seat. Hydraulic fluid can now flow from B➁ to B➀.

In order to allow the ball seat valve (2) to be safely closed, the control spool (1) must be hydraulically unloaded (see circuit example).

Pre-opening

Due to the pre-opening, there is a damped decompression of the pressurized liquid. Thus, possible switching shocks are avoided. The two-stage set-up with an increased control open ratio means even low pilot pressure can be unloaded securely.

Type Z2S 16 ‒…

Type Z2S 16 A…

Type Z2S 16 A…SO40

Type Z2S 16 A…SO60

Circuit example, schematic

1	Control spool, area A2
2	Ball, area A3
3	Poppet, area A1
4	Stop
5	Control spool, area A4

①	component side
②	plate side

Seat valve
Direct actuated
Component series 5X
Maximum operating pressure 315 bar
Maximum flow 300 l/min
Size 16

Data Sheet	Download Data Sheet
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual

Spool symbol	A1 → A2
Max. pressure	315
Electrical connection description	0
Productgroup ID	9,10,11,12,13,14
Number of ports	4
Type of actuation	with mechanical actuation
Size	16
Max. flow	300
Type of connection	Interim assembly
Connection diagram NFPA	NFPA T3.5.1 R2-2002 D07
Size_CETOP	D07
Connection diagram	ISO 4401-07-07-0-05
Number of switching positions	2
Weight	6.741
Seals	NBR
Hydraulic fluid	HL,HLP,HLPD,HVLP,HVLPD,HFC

01	02	03	04		05		06	07	08	09
Z2S	16			–	5X	/				*

01	Check valve, Sandwich plate design	Z2S
02	Size 16	16
Leakage-free blocking
03	In channel A and B	–
	In channel A	A
	In channel B	B
Cracking pressure
04	3 bar	1
	5 bar	2
	7,5 bar	3
	10 bar	4
05	Component series 50 ... 59 (50 ... 59: unchanged technical data and pin assignment)	5X
Seal material
06	NBR seals	no code
	FKM seals	V
	Observe compatibility of seals with hydraulic fluid used. (Other seals upon request)
Corrosion resistance (outside; thick film passivated according to DIN 50979 Fe//Zn8//Cn//T0)
07	None (valve housing primed)	no code
07	Improved corrosion protection (240 h salt spray test according to EN ISO 9227)	J3
Special version
08	Standard	no code
	Control open by external port G1/4 (only version "A" and "B")	SO40
	Control spool unloaded to port T	SO60
09	Further details in the plain text	*

For applications outside these parameters, please consult us!

general

Size			16
Weight		kg	6.5
Installation position			any
Ambient temperature range	NBR seals	°C	-30 … +80
Ambient temperature range	FKM seals	°C	-20 … +80
MTTFD values according to EN ISO 13849		Years	150 1)

1)	For further details, see data sheet 08012

hydraulic

Size			16
Maximum operating pressure		bar	315
Cracking pressure (in free direction)			See characteristic curves
Maximum flow		l/min	300
Direction of flow			see symbols
Hydraulic fluid			see table "Hydraulic fluid"
Hydraulic fluid temperature range (at the valve working ports)	NBR seals	°C	-30 … +80
	FKM seals	°C	-20 … +80
Viscosity range		mm²/s	2.8 … 500
Maximum admissible degree of contamination of the hydraulic fluid, cleanliness class according to ISO 4406 (c) 1)			Class 20/18/15
Area ratio	With pre-opening		A3/A2 ~ 1/12 (see sectional drawing)
Area ratio	Version "SO60"		A1/A4 ~ 1/7 (see sectional drawing)

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, HLPD, HVLP, HVLPD	NBR, FKM	DIN 51524	90220
Bio-degradable	Insoluble in water	HETG 1)	NBR, FKM	ISO 15380	90221
	Insoluble in water	HEES 1)	FKM	ISO 15380
	Soluble in water	HEPG 1)	FKM	ISO 15380
Flame-resistant	Water-free	HFDU (glycol base)	FKM	ISO 12922	90222
		HFDU (ester base) 1)	FKM
		HFDR	FKM
	Containing water	HFC (Fuchs Hydrotherm 46M, Petrofer Ultra Safe 620) 1)	NBR	ISO 12922	90223
Important information on hydraulic fluids: There may be limitations regarding the technical valve data (temperature, pressure range, life cycle, maintenance intervals, etc.). The ignition temperature of the hydraulic fluid used must be 50 K higher than the maximum surface temperature. Flame-resistant - containing water: Maximum pressure differential 210 bar, otherwise, increased cavitation erosion Life cycle as compared to operation with mineral oil HL, HLP 30 … 100%. Maximum hydraulic fluid temperature 60 °C Bio-degradable and flame-resistant – containing water: If this hydraulic fluid is used, small amounts of dissolved zinc may get into the hydraulic system.

1)	Not recommended for corrosion-protected version "J3" (contains zinc)

Notice:

Selection of optimal sealing material (see "Type code") also depends on the type of hydraulic fluid used.

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

Δp-qV characteristic curves

①	component side
②	plate side

Version "A"

Version "-"

Version "B"

Version "A…SO40"

Version "A…SO60"

Dimensions in mm


Required surface quality of the valve contact surface

Version	Cracking pressure in bar	Leakage-free blocking in channel	L1 in mm	L2 in mm
"no code"	3; 5	„–“	10	10
	7,5; 10	„–“	36,5	36,5
	3; 5	A	10	8,5
	3; 5	B	8,5	10
	7,5; 10	A	36,5	8,5
	7,5; 10	B	8,5	36,5
„SO40“	3; 5	A, B	10	10
	7,5; 10	A	36,5	10
	7,5; 10	B	10	36,5
„SO60“	3; 5	A	10	8,5
	3; 5	B	8,5	10
	7,5; 10	A	36,5	8,5
	7,5; 10	B	8,5	36,5

①	component side
②	plate side

1	Name plate
2	Through holes for valve mounting
3	Identical seal rings for ports A, B, P and T
4	Identical seal rings for ports X, Y, L
5	Locking pins
6	Locating holes
7	Porting pattern according to ISO 4401-07-0-05
8	Plug screw SW41, Tightening torque MA = 70 Nm

Valve mounting screws (separate order)

Size	Quantity	Hexagon socket head cap screws	Material number
16	4	ISO 4762 - M10 10.9	-
16	2	ISO 4762 - M6 10.9	-