Q:I have a client in Philippines told me that rival the valve plate and the valve stem is connected by bolts, and our products are connected with a taper pin, please tell me the advantages disadvantages of Comrade conical pin connection and bolt connection. Thank you all

But the taper pin needs to be loosened, or there will be a risk of natural shedding!

Q:here's "first half week" refers to what?

It is better to be within 45 degrees of the vertical direction.

Q:Why is the straight stroke valve stem finer?

To solve this problem, a good way is to turn the valve stem with a tour, or rotary type control valve, the valve stem stroke than the straight stem diameter of 2 ~ 3 times, and the long life of the graphite packing, valve stem stiffness, filling long life, but a small friction torque, small hysteresis.

Q:How about valve stem with 660?

If the action is not very frequent, the condition is not very complex, harsh, it should still be possible. Heat treatment will be better

Q:It seems to be used on the stem nut. Yes, thank you. Ah, thank you

It is mounted behind the seat and plays a key role in the thrust and closure of the valve seat.

Q:What brand is good for fishing stem?

Now also used for freshwater fishing, fishing line can be equipped with the stroke of fish, can also be cast, can be said to be the size of the weapon system.Raft rods are usually two sections, most of which are rods, and some of them are vibrating out, but very few. General raft rod length of 1.6 meters to 2.4 meters long, the color section before the shoot distribution of bright colors and more conducive to the observation of the fish, rod shoots for glass fiber rod solid rod, a very soft and elastic, a little external force can be clearly reflected, rod slightly small and dense distribution. The raft pole is stout and stiff, and the pole is straight and strong, even if it meets a big fish.

Q:What is the reason for the leaking of the stem of the open rod gate valve? How to solve?

2. Solutions:A, tighten the packing bolt, increase the sealing surface performance.B, replacement of packing, pay attention to the correct choice of packing type, packing should be placed neatly placed, packing should be cut into 45 degrees, at the time of the joints should be staggered over 30 degrees, presses the packing, two bolts to tighten the synchronization, to prevent partial pressure.

Q:What is the function of the stem nut? My valve can not be opened, is it because you want to loosen the rod nut to move?

Positioning effectPerform device link with valve stem

Q:Liquefied petroleum gas cylinder angle valve stem leak how to do?

Therefore. There is a leak of gas cylinders, is substandard products, are not allowed to leave the factory, not allowed to use. Users in exchange for new refillable liquefied petroleum gas cylinders, use soap bottle, bottle valve and cylinder weld joint, bottle valve outlet and stem, observed that the air bubble is leaking, this bottle is unqualified, shall be immediately returned to the station for bottles, filling station that is the replacement of a liquefied petroleum gas bottle, the replacement of qualified angle valve. Angle valves are important safety accessories for liquefied petroleum gas cylinders, and the Ministry of urban and rural construction, Ministry of environmental protection and Ministry of labor and personnel have promulgated standards.

Q:What's the difference between the stem and the pole?

Valve stem is iron rod, hardness is very high, the overall length is not long, is not conducive to throwing, mainly for bait, let the bait automatically fall to the designated depth for search. The pole is mainly used for throwing, relatively lighter, elastic, and the length is very long.