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

The taper pin is easy to remove and can only be installed in the same direction.

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 are their respective advantages and disadvantages?

Valve faults:Between the sealing surface is easy to cause erosion and scratches, maintenance is more difficult. Larger size, open need a certain space, long opening and closing time. Complex structure.

Q:How is the diameter of the valve stem determined?

In the valve manufacturing and production process standards, valve type, valve torque and valve stem diameter has a direct link.AskCan you say something about it, for example, the regulating valve?.Chasing the answerASME related standards, as well as GB GB standards relating to valve manufacturing.

Q:Sea poles, stem what is the difference between the general water reservoir play, 3 meters or so, what pole is better, please advise

The sea rod called cast rod or pole. It has a winding wheel at the handle of the fishing rod. It is covered with fishing lines, so that when it is thrown, it can throw the bait hook into the far water and throw it very far away.

Q:The role of valve stem in process gate valve

The valve stem is an important component of the process gate valve. It is used to drive, connect the actuating mechanism or the handle, and directly drive the spool to move or rotate, so as to realize the function of valve switching or regulating. Valve stem in the process of opening and closing of the valve, not only moving parts, stress components, but also seals.

Q:I novice, recently wanted to start with stem, do not know what the wheel is suitable, mainly for fishing for carp, but does not rule out carp bite, ha! Brand choice in Wei and Garnett, do not know how to choose the wheel, because too many models, afraid to buy is not suitable, the cannon to fight mosquitoes or gun hit the elephant. Master, please advise

I have to play with the stem and black turtle. The effect can also make 3 blackfish yesterday

Q:Butterfly valve can not remove the butterfly plate, butterfly plate is fixed with pins and valve stem

Method two: the pin is too big, drill the screw hole on the pin, and then screw up, pull out the pin (can not hurt)

Q:How to set the valve stem diameter

You can refer to the size of the sleeve of the pneumatic actuator which is matched with the ball valve

Q:River fishing rod or sea pole?

I think night fishing, I personally prefer raft, multi-point, easy to operate, but the tonality is slightly hard