31.08.2026
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Detail
Check valves - Page 2
Check valves - Page 2
Trading company "Motorimpex" is a leading supplier of hydraulic valves in Ukraine. Most of the product manufacturers are represented exclusively.
A significant portion of the product models is constantly in stock for immediate supply. All products presented in the technical catalogs are available for order.
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Product code: 05251291
Brand -
Caproni
G1/8–G1
maximum working pressure: 320 bar
maximum flow rate: 120 l/min
Product code: 05251289
Brand -
Caproni
DN 6
maximum working pressure: 320 bar
maximum flow rate: 30 l/min
Product code: 05251290
Brand -
Caproni
DN 10
maximum working pressure: 320 bar
maximum flow rate: 40 l/min
Product code: 05251286
Brand -
Caproni
3/4–16 UNF
maximum working pressure: 250 bar
maximum flow rate: 23 l/min
Product code: 05251287
Brand -
Caproni
3/4–16 UNF
maximum working pressure: 250 bar
maximum flow rate: 30.2 l/min
Product code: 05251288
Brand -
Caproni
7/8–14 UNF
maximum working pressure: 250 bar
maximum flow rate: 60 l/min
Product code: 05271448
Brand -
Duplomatic
G1/4–G2
maximum working pressure: 400 bar
maximum flow rate: 850 l/min
Product code: 05271445
Brand -
Duplomatic
DN 6
maximum working pressure: 350 bar
maximum flow rate: 75 l/min
Product code: 05271444
Brand -
Duplomatic
DN 6
maximum working pressure: 350 bar
maximum flow rate: 75 l/min
Product code: 05271446
Brand -
Duplomatic
DN 10
maximum working pressure: 320 bar
maximum flow rate: 100 l/min
Product code: 05271447
Brand -
Duplomatic
maximum working pressure: 350 bar
maximum flow rate: 400 l/min
Product code: 05271443
Brand -
Duplomatic
G1/4, G3/4, G1 1/4
maximum working pressure: 320 bar
maximum flow rate 300 l/min
Product code: 05445698
Brand -
Bucher
7/16–20 UNF, 3/4–16 UNF, 7/8–14 UNF
maximum working pressure: 350 bar
maximum flow rate: 68 l/min
Product code: 05445697
Brand -
Bucher
3/4–16 UNF, 1 5/16–12 UNF
maximum working pressure: 350 bar
maximum flow rate: 228 l/min
Product code: 05445696
Brand -
Bucher
3/4–16 UNF, 1 5/16–12 UNF
maximum working pressure: 350 bar
maximum flow rate: 190 l/min
Product code: 05445695
Brand -
Bucher
G1/4–G2
maximum working pressure: 350 bar
maximum flow rate: 360 l/min
Product code: 05445694
Brand -
Bucher
G1/8–G1 1/2
maximum working pressure: 350 bar
maximum flow rate: 360 l/min
Product code: 05445693
Brand -
Bucher
G1/8–G3/4
maximum working pressure: 350 bar
maximum flow rate: 120 l/min
Product code: 05445692
Brand -
Bucher
G1/8–G3/4
maximum working pressure: 500 bar
maximum flow rate: 80 l/min
Product code: 05445691
Brand -
Bucher
G1/4–G 1 1/4
maximum working pressure: 350 bar
maximum flow rate: 140 l/min
Product code: 05445690
Brand -
Bucher
G1/8–G1
maximum working pressure: 350 bar
maximum flow rate: 140 l/min
Product code: 05445689
Brand -
Bucher
G1/8–G1/2
maximum working pressure: 250 bar
maximum flow rate: 50 l/min
Product code: 05445688
Brand -
Bucher
M24x1.5
maximum working pressure: 350 bar
maximum flow rate: 120 l/min
Product code: 05146923
Brand -
Oleodinamica Mozioni
3/4–16UNF, G1/4–3/8, M15x1, M16x1,5
Product code: 05445687
Brand -
Bucher
G1/8–G1 1/2
maximum working pressure: 350 bar
maximum flow rate: 360 l/min
Product code: 05445686
Brand -
Bucher
G3/4–G2
maximum working pressure: 420 bar
maximum flow rate: 1000 l/min
Product code: 05445685
Brand -
Bucher
G3/4–G2 1/2
maximum working pressure: 420 bar
maximum flow rate: 1200 l/min
Product code: 05445684
Brand -
Bucher
DN 6
maximum working pressure: 350 bar
maximum flow rate: 60 l/min
Product code: 05445683
Brand -
Bucher
DN 10
maximum working pressure: 350 bar
maximum flow rate: 120 l/min
Product code: 05445682
Brand -
Bucher
DN 4
maximum working pressure: 250 bar
maximum flow rate: 25 l/min
Product code: 05445681
Brand -
Bucher
G1/4, G3/4
maximum working pressure: 350 bar
maximum flow rate: 68 l/min
Product code: 05445680
Brand -
Bucher
G1/4–G1
maximum working pressure: 350 bar
maximum flow rate: 228 l/min
Product code: 05445679
Brand -
Bucher
G1/4, G1/2, G3/4
maximum working pressure: 350 bar
maximum flow rate: 190 l/min
Product code: 05435338
Brand -
Brevini
G1/4–G1 1/2
maximum working pressure: 350 bar
maximum flow rate: 310 l/min
Product code: 05435341
Brand -
Brevini
DN 4
maximum working pressure: 250 bar
maximum flow rate: 20 l/min
Product code: 05435340
Brand -
Brevini
DN 6
maximum working pressure: 350 bar
maximum flow rate: 40 l/min
Product code: 05435339
Brand -
Brevini
DN 10
maximum working pressure: 350 bar
maximum flow rate: 80 l/min
Product code: 05435343
Brand -
Brevini
M15х1, M16x1.5, 3/4–16 UNF, 7/8–14 UNF
maximum working pressure: 350 bar
maximum flow rate: 60 l/min
Product code: 05435342
Brand -
Brevini
G1/4, G3/8, G1/2
maximum working pressure: 350 bar
maximum flow rate: 80 l/min
Product code: 05525955
Brand -
Luen
G3/4
maximum working pressure: 350 bar
maximum flow rate: 80 l/min
Product code: 05525954
Brand -
Luen
M20x1.5
maximum working pressure: 210 bar
maximum flow rate: 30 l/min
Product code: 05525953
Brand -
Luen
G1
maximum working pressure: 350 bar
maximum flow rate: 150 l/min
Product code: 05525952
Brand -
Luen
3/4–16 UNF
maximum working pressure: 350 bar
maximum flow rate: 40 l/min
Product code: 05525951
Brand -
Luen
3/4–16 UNF
maximum working pressure: 350 bar
maximum flow rate: 40 l/min
Product code: 05525950
Brand -
Luen
3/4–16 UNF
maximum working pressure: 350 bar
maximum flow rate: 40 l/min
Product code: 05525949
Brand -
Luen
7/8–14 UNF
maximum working pressure: 350 bar
maximum flow rate: 50 l/min
Product code: 05525948
Brand -
Luen
7/8–14 UNF
maximum working pressure: 350 bar
maximum flow rate: 40 l/min
Product code: 05525947
Brand -
Luen
M22x1.5
maximum working pressure: 350 bar
maximum flow rate: 30 l/min
Category description
Cylinder hydraulic lock – this is a controlled check valve that acts as an element of the hydraulic line. It is located, as a rule, between the hydraulic distributor and the hydraulic cylinder. It is used to ensure that, in the presence of control, the working fluid is passed in two directions, and in its absence – in one.
What is a hydraulic lock for?
The purpose of the valve is as follows:
- Closing fluid under pressure in some sections of the hose. This is necessary in order to hold the hydraulic cylinder in the desired position.
- Crash recovery in case of violation of the integrity of the system. If the tightness of the hydraulic line is not observed, the pressure in the system drops sharply, and the hydraulic lock prevents complete depressurization.
- Prevention of movement of mechanisms in the event of a decrease in pressure. For this purpose, a hydraulic lock is installed at the outlet of cylindrical cavities.
- Preventing the movement of the output links of the line, which are caused by leaks.
Thus, the hydraulic cylinder lock serves to ensure the safety of the system and its stable operation.
The principle of operation of hydraulic locks and their types
In the absence of control signals, the hydraulic lock begins to function on the principle of a check valve: oil is supplied only in one direction through the entire device. When the control signal is resumed, the hydraulic actuator passes the working fluid in both directions.
Based on the number of body valves, one-way and two-way locks are distinguished.
The one-sided action hydraulic lock structurally consists of the following elements:
- saddle;
- locking element – cone or ball;
- spring;
- piston.
It is mainly used on aerial platforms and loaders where there is no need to completely close the lowering line. The unit locks the hydraulic line receiving the load when the distributor is in the neutral position.
As part of a double-acting hydraulic lock:
- 2 shut-off and control balls;
- 1 control element;
- 2 springs.
This type of lock is universal, as it can lock the hydraulic line for both lifting and lowering. Its purpose – ensuring a stationary state in the neutral position of the distributor, when liquid pressure on the cylinder occurs from both directions.
Areas of application of hydraulic locks
This hose element is applicable in the following industries:
- Industrial production, where fixation of the hydraulic cylinder in a certain position is required. These can be numerically controlled machines to hold the position of the desktop or tool.
- Agricultural and construction machinery. The hydraulic lock blocks the hydraulic cylinder in the desired position, which prevents accidental lowering or lifting of the working body.
- Automotive engineering. Hydraulic locks are used in systems for lifting and lowering truck bodies.
- Power engineer. Fixing hydraulic cylinders in hydro turbines or hydro power plants allows you to control hydro units, ensuring reliable and stable operation.
- Repair and maintenance. The lock is necessary for the convenience and safety of repairing hydraulic cylinders.
Do you want to buy a hydraulic lock for a hydraulic cylinder at a nice price? Here you will find products with the required bandwidth for your purposes.
Our consultants will help you make a choice and buy a hydraulic lock that best suits your requirements. We offer delivery to any city in Ukraine in the shortest possible time. Get in touch!
Product code: 01667173
Brand -
Motorimpex
Available
tank capacity: 15 / 30 l
flow rate: 4.5 / 9 l/min
engine power: 1.5 / 2.2 kW
relief valve: 150 / 120 bar
From
40 320
UAH
Product code: 01667210
Brand -
Motorimpex
Available
tank capacity: 30 / 40 L
flow rate: 16,2 / 40+20 l/min
engine power: 16 / 22 hp
relief valve: 100 / 170 bar
From
83 300
UAH
Product code: 501026998
Brand -
Kozmaksan
pulling force: 6.8 t
flow rate: 60 l/min
working pressure: 155 bar
rope: 25 m x Ø 12 mm
Product code: 501027001
Brand -
Kozmaksan
pulling force: 4.5 t
motor displacement: 50 cm3/rev
flow rate: 5 - 45 l/min
rope: 25 m x Ø 10 mm
Product code: 62667153
Brand -
Motorimpex
for testing and servicing hydraulic cylinders, with pressure control and idle speed control
Product code: 201017006
Brand -
OMFB
maximum working pressure: 400 bar
maximum displacement of section: 75.1 cm3/rev
Product code: 12146986
Brand -
Oleodinamica Mozioni
DN 6, 10
maximum working pressure: 315 bar
maximum flow rate: 180 l/min
Product code: 11806588
Brand -
HST
capacity: 0.075–4 l
maximum working pressure: 350 bar
Product code: 05356705
Brand -
OMT
G3/8
maximum working pressure: 350 bar
Product code: 55776474
Brand -
Airneo
G1/8, М5х0,8, G1/4, G3/8, G1/2
scheme: 5/2, 5/3
max. number of cycles per sec.: 5
response time: 0,05 sec
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