stainless steel tube fitting

 Type stainless steel needle valve is a kind of small manual stop valve, the valve core is a very sharp cone, hence the name, it is better than other types of valves can endure more pressure, sealed performance is good. However, in stainless steel hydraulic fitting some places of oil and gas production, pressure gauge.
Below general use are the stainless steel needle valve type, but the production site type needle valve oil leakage phenomenon also happen from time to tome, for the treatment of this kind of situation has the following kinds:
Stainless steel needle valve
1, tighten packing nut;
2, open the packing nut, with raw tape wrapped around the valve stem;
3, open the packing nut, remove the packing gland ring, push the new packing.
In the later use process, the common type of needle valve packing nut periodically we leak detection, found that the problem should be handled in a timely manner, strengthen employee type of needle valve structure, maintenance knowledge training, ensure that exceptions can be handled correctly.
Meter type needle valve there are generally two kinds of features, using stainless steel tube fitting features and structural characteristics. It determines the main use of performance and use scope of the valve, belongs to the valve using features are: valve main categories, product type, valve parts, valve drive way And so on.
It determines the pneumatic ball valve valve installation, maintenance, maintenance methods of some structural characteristics. Belongs to the structural characteristics are: the valve and overall height, length and the structure of pipe connection form, the form of the sealing surface, stem structure, etc.
Needle valve type
1, regularly check the oil level medium oil height, oil mist detector discretion to support him, on a regular basis to solve water blocking device bottom dust accumulation of condensed water and impurities.
2, check the air pressure and adjust the flow of one-way throttle valve has enough opening and closing force, flexible motion.
3, check whether testing hole leakage or leakage, are leaking air leakage need to replace the seal in time.
4, high pressure water descaling injection valve not only stable and stainless steel needle valve controllable operation, also need to pay attention to Ann A full run.
Needle valve type good regulation performance, under normal circumstances, the adjustment of the needle valve is the scope within the context of 100 ~ 200, and the market for valve adjusting range is reached 50.
Type needle valve performance of circulation, the needle valve type of flow is the direct form, make the medium flow is no longer need to turn, to a large extent reduce the chances of the deposition of medium. Therefore very suitable for high viscosity, suspension, such as pulp is not clean Medium.
Good cutting performance type needle valve, needle valve type has a big feature is spherical valve core and valve seat cant contact between USES is the form of a line contact, which reduces the contact surface, further reduce the leakage rate of the valve.