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Determine The Type Of Hose Fitting
Aug 08, 2018

The type of hose fitting can be determined by its appearance, sealing surface and screw thread. Today, we are talking about how to determine the form of hose fittings.

Determine the type of hose fitting sealing:

Thread -

- o-rings

- match Angle or metal - metal connection

- Angle with o-ring and relevant fit

Screw thread: the compression between the thread and internal thread can form a seal.

O-ring: the o-ring on the external threaded connection is extruded on the corresponding inner threaded mating surface to form a seal, which is commonly used in high-pressure systems.

Fit Angle or metal and metal hard seal: after the thread is locked, the metal bevel of certain Angle fits each other closely and is squeezed together to form deformation and seal.

Bevel with o-ring: this fitting combines the metal bevel seal and o-ring seal in two ways. When the nut is locked, the sealing surface fits each other and causes the o-ring to deform between the two.

Determine thread type

It is generally difficult to determine the correct type of screw thread with the naked eye, because the thread form of various fittings looks similar from the outside. Professional measuring tools such as pitch gauge or caliper are needed for correct resolution.

Thread pitch gage

The thread pitch can be measured directly by using the pitch gauge. Note the difference between the metric thread and the metric thread gauge: the marked value on the metric thread gauge is the pitch of the metric thread, and the marked value on the pitch gauge is the number of screw teeth within an inch of the length.

Caliper method

The vernier caliper can be used to measure the diameter of the external thread and the diameter of the internal thread to further determine the thread.

To facilitate customer identification of threads, pike can provide thread identification kit, including screw gauge, caliper, thread template, use guide, etc., as a portable tool, it is the ideal site thread identification tool. Of course, if you find the selection of hose connectors troublesome, you can choose a professional company as technical support.


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