multi-specification multi-model hydraulic quick release coupling stainless steel quick connection operable quick connection kze thread quick connection

Supply stainless steel quick connectors, clamp-type hydraulic hose fittings, and stainless steel slip-fit pipe fittings

Applications of hydraulic fittings

Hydraulic fittings are widely used in hydraulic pipeline systems across various industries such as military manufacturing, power, petrochemicals, electricity, ships, cars, rail transit, construction machinery, mining, metallurgy, steel plants, and marine engineering.

Features of hydraulic fittings

The high-strength pressure that the hydraulic fitting can withstand; if the hydraulic line fitting has cracks or small holes, or if the pressure is too high and cannot handle such a load, an explosion may occur, and the impact force involved is quite significant.

Types of hydraulic fittings

Hydraulic fittings can primarily be divided into two main categories: hose fittings and rigid pipe fittings

Each major category within these two major categories is further divided into several sub-categories:

1) Hose fittings are divided into integral hose fittings, clamp-type hose fittings, and internal lock-type

hose fittings, detachable hose fittings, etc.

2) Hard pipe fittings, also known as transition fittings, are divided intoDINSleeve-type, metric thread connections

British standard threaded fittings, American standard threaded fittings, welded flanges, mining fittings, and more

There are several common thread types for hydraulic connectors

AThe type is flathead.

HThe type is internal expansion port.26degree angle

OThe type fits with a flat head.OBearing ring

CThe shape is an internal cone60degree angle</t_XXXXXXXX>Commonly known as concave</t_XXXXXXXX>Also known as internal expansion port

DThe shape is an external ball head</t_XXXXXXXX>Commonly known as pointed head

Professional production of rubber tube fittings in various specifications (metric, imperial, US customary), overhanging fittings (metric, imperial, US customary), coal mine fittings, construction machinery fittings, welded pipe fittings, slip-fit fittings, mining accessories, hydraulic fittings, oil nuts, processing of various special-shaped fittings, and manufacturing of non-standard products according to user requirements

Leak prevention for high-pressure hose fittings

In hydraulic systems, whether it is metal pipe fittings or hose fittings, there is a risk of simple leakage. For socket union fittings, leakage usually occurs due to significant external force or impact on the pipeline, which causes the socket to loosen or the pipe end to deform. In such cases, it is necessary to check whether the socket has lost its roundness, whether the cutting edge is damaged, whether the pipe end is intact, and the tightness of the socket nut. Additionally, the external force on the pipeline must be removed. For flare fittings, leakage often results from excessive flaring, substandard quality, or repeated disassembly, leading to deformation or cracks in the flare. In this case, the front end can be cut off and re-flared. If male and female cones are used for sealing by pressing, leakage is mostly caused by damage to the cone surfaces, and the surfaces can be polished with grinding sand. In some cases...Case where the "о"-shaped ring is sealed at the end face or outer diameter.

Cause of leakage at the high-pressure hose connector

There are several reasons for the leakage at the high-pressure hose connector:Leaks occur due to aging or deformation of the “о” shape ring; the “о” shape ring assembly is not properly positioned, resulting in uneven pressure when two surfaces meet, or the “о” shape ring is cut, causing leaks; the “о” shape ring is not compacted properly, leading to insufficient elastic deformation and thus leaks; the notch groove of the “о” shape ring is too deep, also causing leaks. To address this, it is necessary to select “о” shape rings with the same outer diameter and thicker cross-section from the beginning, or cut or grind the sealing surface with the notch groove to reduce its depth, ensuring the “о” shape ring has sufficient elastic deformation (the compression amount should generally be...0.35–0.65 mmBetween parts). Regarding leaks at pipe fittings using oil-resistant rubber sheets, wool felt, soft steel cardboard, combined sealing rings, or sealant, regardless of the material used, first check whether the seals are damaged, deformed, aged, or have excessive roughness, and then apply appropriate measures.

High-pressure rubber tube connector device considerations

(1) The tube should not be overly bent, whether in motion or at rest, and must not be bent at the base; it should at least maintain its original diameter1.5The path begins to twist;

(2) The rubber tube should not be pulled too tightly when moved to the pole position; it should be relatively loose.

(3) Try to prevent the rubber tube from changing or deforming;

(4) The rubber tube should be kept as far away from the heat-radiating components as possible, and if necessary, a heat-insulating panel should be installed;

(5) Damage to the outside of the tube should be prevented, such as prolonged contact with external components during use;

(6) When the rubber tube undergoes excessive deformation due to its own weight, there should be a support component.