X Y B A Z
P
1
PTT
1
M
04/16
en 5.8.402.01
Our policy is one of continued research and development. We therefore reserve the right to amend,
without notice, the specifications given in this document. (2015 - 5793d) © 2015 Buschjost GmbH
83185
4/2-Directional Control Valve NG 16, self-switching
Technical features
Design:
This hydraulic valve system is for
the continuous switching of a
cylinder from »in stroke« to »out
stroke«. The switching element is a
hardened steel piston which moves
in a solid cast iron body. For this
reason the valves are suitable for
the most rugged and demanding
operating conditions.
The system relief valve and all other
functions necessary to complete
the hydraulic circuit are integrated
in the single valve body
Operation:
The operation is eected without
solenoids, and therefore without
electrical function. No external
signal, no external logic is
required. The patented flow and
pressure principle guarantees
that the switching positions are
precisely reached.
Mounting:
- Subplate mounted with o-ring
seals
- Directly ported G1/2 into valve
body
> Port size:
Subplate mounting or
threaded G1/2
> Switch proves
absolutely reliable,
even at extreme oil
temperatures
> Pilot-controlled
pressure valve,
negligible pressure
peaks
> Soft-switching,
low noise level
> Resistant to
contamination
> Oil leakage connection
not required
> Complies with the
relevant safety
regulations
Technical data - Regenerative version
Symbol Q
Pump
Q
max.
backflow
from A>T
set by factory
pressures
possible pressure settings
p
1
/ p
2
/ p
Diff
[bar]
pressure switch setting
[bar]
Model
(l/min.) (mm) p
1
/p
2
/p
Diff
[bar] max. limit min. limit for X for Y
10 ... 70 140 220/150/100 315/240 130/100 25 20 8318500.0000.00000
Certificate Nr. V 487.01/15
Codes and standards:
EN ISO 13849-1:2008 + AC:2009
IEC 61508 Parts 1-2 and 4-7:2010
Intended application:
Safety function:
Move into basic position at every
taking back of supply pressure. The
valves fulfill the requierments of the
applied standards and can be used
in apllications up to PL d acc. EN
ISO 13849-1.
Specific requirements:
The instructions of the associated
Installation and Operating Manual
shall be considered.
X B A
P
1
PTT
1
➃
➁
➂
➀
ZY
M
83185
4/2-Directional Control Valve NG 16, self-switching
Our policy is one of continued research and development. We therefore reserve the right to amend,
without notice, the specifications given in this document. (2015 - 5793d) © 2015 Buschjost GmbH
en 5.8.402.02
04/16
83˙˙˙˙˙.0000.˙˙˙˙˙
General
Type of unit Directional Control Valve,
Self Switching
Design Sliding spool valve
Type of mounting Panel mounting
resp. G1/2 cable connection
Weight (kg) Typ 83185 = 7,8
Mounting position Optional
Direction of flow Refer to Symbols
Ambient temperature ϑ [°C] –20 ... +50°C
Size NG 16
Dimension of unit Refer to page 4
Electrical Characteristics
Voltage see catalog number code
Power consumption P20 [W] 1
27
Duty cycle ED
rel
[%] 100
Protection class [EN 60529] IP65
Voltage tolerance [%] ±10
*1)
Pressure at which the directional valve block switches from the cylinder return
stroke to retract stroke.
*2)
Pressure at which the directional valve block switches from retract stroke return
stroke to the cylinder.
Option selector
Pressure relief valve Substitute
Pilot operated 1
Pilot operated with solenoid
operation
2
Additional function Substitute
Regenerative version 8
As 8, but with throttle check 9
Pressure setting Substitute
Pressure = 220 bar
Changeover pressure = 150 bar
Dierential pressure = 100 bar
500
Pressure = 200 bar
Changeover pressure = 150 bar
Dierential pressure = 100 bar
555
Pressure = 180 bar
Changeover pressure = 150 bar
Dierential pressure = 100 bar
558
Pressure = 200 bar
Changeover pressure = 150 bar
Dierential pressure = 100 bar
559
Pressure = 220 bar
Changeover pressure = 150 bar
Dierential pressure = 100 bar
560
Pressure = 220 bar
Changeover pressure = 150 bar
Dierential pressure = 100 bar
561
Pressure = 220 bar
Changeover pressure = 150 bar
Dierential pressure = 100 bar
562
Pressure = 245 bar
Changeover pressure = 150 bar
Dierential pressure = 100 bar
565
Pressure = 220 bar
Changeover pressure = 150 bar
Dierential pressure = 100 bar
566
Frequency / Voltage Substitute
24 V DC
only for electrical vent
02400
Circuit diagrams and connections
Valve block, regenerative system
Hydraulic Characteristics
max. Operating pressure
Connection A, B, P p [bar]
Connection T p [bar]
315
120
Pressure *1),
factory set p
1
[bar] 220
Changeover pressure *2),
factory set p
2
[bar]
150,
max. 240 permitted
Dierentialabschaltung p
Di
[bar] 100
Fluid Mineral oil DIN 51524 / 51525
(other on request)
HL /HLP biological HEES
Fluid temperature ϑ max. +80 °C
Viscosity ϑ [m²/s] 10 ... 500
Flow Q
max
, A > T [l/min]
Q
Pumpe max.
[l/min]
140
10 - 70
Filtration [m] 25 abs.
Contamination level ISO 4406 Kla. 20/18/15
Our policy is one of continued research and development. We therefore reserve the right to amend,
without notice, the specifications given in this document. (2015 - 5793d) © 2015 Buschjost GmbH
83185
4/2-Directional Control Valve NG 16, self-switching
en 5.8.402.03
04/16
Position ports Characteristics Remarks
1 System relief valve
2 Pressure valve, changeover pressure Setting at least 35 bar lower than pos.1, max. 240 bar
3 Shut-o valve If opened, cylinder stops in fully retracted position
4 Throttle check Optional, see catalog number code
P, G1/2 Pump port
T, G1/2 Tank port
A, G1/2 Cylinder port At cylinder head end
B, G1/2 Cylinder port At cylinder rod end
P1, G1/2 Alternative pump port Or gauge port, plugged
T1, G1/2 Alternative pump port
M, G1/4 Measurement connection Gauge port, plugged
X, G1/4 Pressure switch port (inapplicable if valve is basic version block
with throttle check)
Pressure switch, e.g. with break contact. Opens the electrical link
when valve switches over from backward stroke to forward
stroke
Y, G1/4 Pressure switch port-B Pressure switch, e.g. with make contact. Opens the electrical link
when valve switches over from forward stroke to backward stroke
Z, G1/4 Pressure switch port-B For example, in the case of waste presses, for the „safety switch“
3) or for the 3/4- or full- signal as required
Functional Description Regenerative version
In this version of the valve, when the cylinder piston is extending, the oil dispelled on the rod-side is not, as in the basic version, discharged preloaded
to the tank via connection B. But rather it flows through a check valve integrated into the valve block to connection P and as such with the pump output
flow to the cylinder piston area. This means that there is a significant increase in the feed rate speed of the cylinder piston. This „rapid feed switch“ can
be overridden with an increase in pressure of 100 bar (set by the manufacturer) caused by external resistance. Then, the pressing operation takes place
at a reduced speed and, as in the basic version, the return stroke follows.
Note:
Piston Area: Rod Area must be ≤ m 2:1 (e.g. Ø 63/45, Ø 70/50, Ø 80/55, Ø 90/65; Ø 100/70; Ø 110/80; Ø 120/85).
Advantages of regenerative circuit:
• Reduction in cycle time by approx. 33%
• More cost-eective than dual-pump mode
• Reduction of pump and filter sizes, of the electric motor capacity and the cable cross sections
• same cylinder piston speeds whether retracting or rapidly extending
• in additional dual-pump mode (switching in specific baseplate) there are extremely short cycle times (3 Feed rate speeds)
Applications:
This self switching 4/2-way valve block is particularly suitable for driving e.g.
• Waste presses
• Baling presses
• Briquette presses
• Barrel and can presses
• Conveying systems
• Compactor trucks with interchangeable containers
Note:
In waste compactors which are driven by the self switching 4/2-way valve, the end positions of the cylinders can be checked without
„expensive“ and sensitive limit switches. All that is needed are simple pressure switches, connected to ports X or Y.
The cylinder end positions can be used for various dierent purposes in the control system
• Compactor will remain OPEN at the end of the cycle time
• Compactor will remain CLOSED at the end of the cycle time
Please ask for documents if required.
83185
4/2-Directional Control Valve NG 16, self-switching
Our policy is one of continued research and development. We therefore reserve the right to amend,
without notice, the specifications given in this document. (2015 - 5793d) © 2015 Buschjost GmbH
en 5.8.402.04
04/16
For subplate mounting 4 O-Rings 23.47 x 2.62 (PRP-No. 119) are necessary.
They are not included with valves without subplates (Part-No. 12 425 56).
Z
A
B
Y
X
Pressure relief valve with
solenoid operation
Provision is made for fitting
a lead seal after setting relief valve.
P1
A
B
T
P
T1
T1
SW 5 inside
SW 5 inside
SW 21
SW 17
SW 5 inside
1
2
2
3
4
3
18,25
90 4,5
106
23
43,6
90
118,2
12
32
135
55
49
216
18 44
16
59
5936
4423
10 70
101,69
116
4136
M10
16,5 deep
G 1/2
15 deep
28
1,8 deep
23
Dimensions
Model
83185 00...
83195 00...
83285 00...
Dimensions in mm
Projection/First angle
EN - Englisch
Conformity:
The hydraulical 4/2-way valve block is an equipment part without drive
system. Thus the hydraulical 4/2-way valve block is excluded from the
scope of the Machinery Directive 2006/42/EC.
This indication was reached in accordance with §35 (last paragraph) of
“Guideline of the application of the Machinery Directive 2006/42/EC”.
According to this indication a declaration of conformity and incorporation
as well as CE marking are not required.
