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metric hydraulic hose fittings
metric hydraulic hose fittings: PEHEL is a professional hydraulic fitting manufacture and supplier. We can provide a wide range of hydraulic hose fitting or hose connectors, hydraulic adapters or hose joints as well as hose ferrules and so on, if you have any interest ,please contract us.
20611: metric female 60 degree cone.
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20641: 45 degree elbow, 1 wire tail.
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20691: 90 degree elbow matric thread.
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20111: flat seal metric thread;
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20112: metric thread, 2 wire tail.
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Retaled "metric hydraulic hose fittings" Keywords
cleaning a long time
high pressure hose assembly cleanliness
Pipe cleaning industrial enterprises in the country, you need to shut down, british hydraulic fittings shutdown, use a metal brush, a blower, oil or chemical solvent cleaning, high pressure water jet, etc., that increase costs, but also pollute the environment, cleaning a long time, can not be cleaned pipe, After washing with residual chemicals, but also to the user at risk.
        To introduce you to a more rapid and efficient method of cleaning. Currently Caterpillar, Volvo, John deere and other companies are using.
        Otto Brooklyn hoses and innovative cleaning system uses a pneumatic pipe emission gun, firing a bullet through a hose or pipe cleaner. A pump has been damaged, in which the output of the last few gallons of oil in a large number of metal fragments, flows to the downstream system. Rinse with solvent and air is very cumbersome, and sometimes the effect is not ideal. But Otto Kling system can be quick and simple solution to the problem of clean hydraulic system piping. And it makes you free from tedious and hydraulic hose adapters rigorous chemical process. Simply remove the two ends of the hose assembly, can be injected into a specially designed projectile. Cleanliness up NAS1638-4 grade of this product is the high-pressure hose
F-proof wrench Caution

 F-proof wrench Caution
Ex F wrench has a variety of titles, some call it: valve wrench, Hancock wrench, quick couplings hook valve, the valve F wrench, etc., which is mainly used to turn on and off using a variety of manual valves closed, generally divided into: non-slip Type F wrench and ordinary type. Its use characteristics: Convenient, lightweight, multi-purpose.

F spanner daily opening and closing valve operation must note the following:
1, F wrench should be in accordance with regulations before operating the valves of different sizes to select the appropriate F hook wrench, prohibited the use of extended long wrench to flip the lever or valve small size, because manual valves are designed primarily to design in accordance with the ordinary human , the operation should be considered before the valve sealing surface of the valve closure strength and size of the force.
2, open and close the valves should be: hard to have a smooth, can not be used violently, quick strength, especially in a number of high-pressure valve closing and opening is even more crucial.
3, open the steam valve should also pay attention: First, hydraulic ferrule fittings to open before the pre-heated, and the exclusion of condensate in the open when they need to use the F spanner attention slowly turned slowly to avoid water hammer phenomenon.
4, the valve fully open, you should use the F spanner Turn handwheel back a little, tightened between the thread and avoid loose damage.
5, for the next shot valves must remember when opening and closing the valve stem position, is strictly prohibited hit dead spots all began, and pay attention to see whether it is false when fully closed shut.
6, when the pipeline at the initial use, the more dirt, dirt stained or normally open valve, the operator should use the valve hook slowly open the valve, which is parted, the use of high speed flow of the dirt medium washed away, and then gently closed, then opened again, repeated several times.
7, the use of explosion-F wrench operation, if found too strenuous, hydraulic hose crimping machine the reasons should be analyzed immediately, avoid Hu dry reckless.

the use of hydraulic power unit maintenance and troubleshooting
A, Selection 1. Carefully read How to Order power unit chapters, according to the actual requirements of complete specifications.
2 hydraulic functions based on the need to achieve, select the appropriate metric hydraulic hose fittings schematic.
3 According to the hydraulic cylinder and piston velocity load size, reasonable choice of gear pump displacement, the system operating pressure and motor power to determine the technical parameters of the hydraulic power unit.
4 according to the situation to determine the form of motor and solenoid valve voltage.
Second, the use of notes 1, please read the instruction manual and the control product model, the parameters are correct.
(2) hydraulic power unit should be properly installed, electrical connection is correct. Note motors, solenoids and power voltage matches (see electrical diagram), the motor rotation direction is correct (clockwise from the shaft end).
3 conventional gap-type DC motor duty S2 = 2 4min (first start continuous working time); S3 = 10% ED (continuous working time accounted for a working cycle time of 10%), not continuous operation. If the selection of 10min duty AC motor, it can not work continuously.
4 hydraulic power unit operating pressure is factory adjusted, to ensure good condition, please do not adjust the user.
5 hydraulic power unit should use oil kinematic viscosity 27 43mm / s (50 ℃) anti-wear hydraulic quick coupling  oil, oil temperature below 50 ℃ is recommended to use YA-N46, oil temperature higher than 50 ℃ is recommended YA- N68, the oil should be added after filtration accuracy of 30um filters, regular dosage of tank effective volume of 80%, conventional oil temperature should be within the range -10 ~ 80 ℃, particularly cold areas, should be used cryogenic hydraulic oils such as YA-N32.
Third, the simple fault identification and troubleshooting a. Motor does not turn, check the connection line accuracy.
2 motor starter, cylinder does not rise or rise instability (1) fuel tank oil level is too low, fuel oil to the provisions;
(2) the oil viscosity is too large or too small, the recommended stainless steel hydraulic fittings oil;
(3) oil filter is clogged, clean or replace the filter;
(4) suction tube is not sealed or leak, identify leaks, do not seal and suction pipe repair or conversion;
(5) solenoid or manual valve is not closed, cleaning solenoid valve, manual valve or replacement;
(6) Vice manual emergency button to open the solenoid valve, close the panic button;
(7) the solenoid valve is energized, causing the oil from the solenoid valve in the unloading, check the electrical circuit;
(8) reverse rotation of the motor, check reconnect;
(9) relief valve is not installed correctly in place, or the regulator not adjusted, check and re-set pressure;
(10) Couplings are not in place, or improper selection, check the re-installation or replacement;
(11) gear pump oil at the O-ring is activated and bad, remove the gear pump check and replace the O-ring.
3 unloading cylinder does not drop or fall instability (a) failed to energize the solenoid valve, check the electrical circuit;
(2) solenoid valve input voltage does not meet the requirements, check the voltage and reach the standard value;
(3) solenoid or manual valve filter is clogged, clean or replace the valve removed;
(4) power-on time is too long or overheating damage to the electromagnet, check whether the voltage overvoltage, confirm the input signal;
(5) throttle or pressure fill valve was closed, adjust or replace.
4 system is not holding pressure, cylinder pressure when the fall off in Bulgaria (1) one-way valve does not seal, cleaning or replacing the check valve seal;
(2) solenoid valve, manual valve does not seal, clean or replace the oil seal;
(3) does not exclude the cylinder itself, holding pressure, the pressure gauges directly connected to the outlet port, if the holding pressure is normal execution pieces are problems.
5 blocks from the tank and the valve between the oil or oil leakage, O-ring wear or pressure off, check and replace the O-ring.
6 motor and motor cover or oil leakage or leakage between the valve block (1) high pressure at the valve block leaking, remove the motor examination,
If so, notify the manufacturer to replace the entire power unit;
(2) gear pump oil seal on the loose, replace the gear pump.
7 After switching off, the motor continues to run (1) Electrical connection error, check and correct wiring;
(2) the start switch burned out, check off, replace the start switch;
(3) AC contactor burn, power inspection, replacement AC contactor.
8 The system noise is too large
(1) the air present in the system, work continuously several times, excluding air;
(2) is not properly installed or worn couplings, inspect and reinstall or replace;
(3) motor failure, check the motor and replace if necessary;
(4) do not work long hours under extreme pressure relief valve begins to overflow stops working.
hydraulic hose

Chinese name of the hydraulic hose
 Alias ​​hydraulic tubing, hydraulic hose, high pressure hose, hydraulic hose, high pressure pipe steel wire, steel wire braided hose wire spiral rubber hose, steel wire braided hydraulic hose is generally divided into spiral hydraulic metric hydraulic hose fittings and wire
Product Name Hydraulic rubber hose
Steel wire braided hydraulic hose Name: Wire braided hydraulic hose
Wire spiral hydraulic hose English name: Spiral wire hydraulic hose
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Implementation of standards

Hydraulic hoses frequently used domestic and foreign standards include DIN, SAE, ISO and GB / T standard;
Steel wire braided hydraulic teflon hose  standards: DIN EN 853, SAE J517, GB / T 3683-2011, ISO1436;
Steel wire spiral hydraulic hoses standards: DIN EN 856, SAE J517, GB / T 10544-2003, ISO3862.