What Is Meant
ASME B31.3 requires "leak testing" of the piping system. This is not a structural check, it is only a take a look at to find out if there are points inside the system which can be leaking.* Then again, there are codes which may require a structural check comparable to is done by the boiler and stress vessel code. In that case, the hydrostatic take a look at is performed to confirm that the vessel and attached piping is structurally sound, not simply leak tight.
When the time involves create a joint for air hoses, this is the time to concern most because if the connection won’t get properly, it may break your industrial productions. Not solely the production but it surely has a unfavorable impact on the safety of the employees. Many of the accidents occur resulting from improper fittings so before you are going to make your buy you need to emphasise the couplings and the capability to match your requirement.
Additionally price mentioning is the JIC commonplace fitting. It uses a bevel and taper configuration that seals one thing like a poppet valve; the threads are required to easily torque the connection quite than seal it. Because most female JIC fittings are a swivel, they permit two fittings or hose ends to connect to one another with out rotating the hose, fitting or part, hydraulic test kit something inconceivable with pipe fittings.
The hydraulics business has adopted a measuring system referred to as Dash Numbers to point hose and coupling size. The quantity which precedes the hose or coupling description is the dash size (table below). The business standard number denotes hose ID in sixteenths of an inch. The exception to that is the SAE 10R5, SAE 100R14 hoses in addition to SAEJ51 and SAE J2064 refrigerant hoses, where dash sizes denote hose ID equal to equal OD (Outside Diameter).
Next factor to do is to measure the retracted length of the cylinder. Retracted size is the space between centers of cylinder mounting pins (pin holes) when the hydraulic cylinder is totally retracted inside (closed). Retracted length could be measured with any standard tape measure. With out this measurement, the cylinder won't be installed and operated correctly on machinery.
