Q:Installation of rubber flexible joint

Flat, vacant, vertical installation of rubber joints, supporting force of pipeline working pressure less than the axial displacement of the rubber joint, you should install anti pull off device, to prevent the work pressure.

Q:Is the electric water heater well connected with the metal hose?

It's better to use a metal hose.Good resistance to high temperature.In addition, the metal hose is better tolerated.It is more durable and difficult to break than hose.

Q:What is the difference between the precast beam of the bridge and the method of pulling out the rubber tube after pouring the concrete? What's the difference between design and calculation?

Corrugated pipe is included in the design of the amount of engineering, the role is: reserved strand space. Its length is calculated when the work length of the steel strand.

Q:Can the rubber hose for the LPG cooker and gas cooker be general?

The rubber hose for the gas cooker and the gas cooker can be used as long as the size is the same.

Q:How to determine the parker381 hose joint?

Parker 381 series hose comes with Parker 43 series hose connector. Because the type, material, and surface treatment of hose joints are indistinguishable from the naked eye, these factors directly affect the quality of the hose assembly:1., if the factory internal judgments, according to Parker provided geometric parameters to determine;2., if purchased on the market, it is best to choose Parker authorized dealer (Parker authorized dealer has Parker's power of attorney);

Q:High pressure hose K type joints KJR32 and KJR31.5D what is the difference between ah, please give us a answer,

K type joint has the distinction between national standard and German standard. In general, 32 of the tubes are 1 1/4 inches, and the K type mine connections are also 1 1/4, but there are two methods of KJR32 and KJR31.5D. But KJR31.5D, D means that the inner diameter is 1 1/4 inches.

Q:How much is a gas hose a metre? At least 1 meters, 5 safe?

1, liquefied petroleum gas will soften the ordinary rubber tube, please use special rubber tube.2, often check and clean hose, found aging, cracking, burn, rat worm bite marks, should be replaced immediately. It is recommended that the hose be replaced in two years under normal conditions.3, gas hose length of not more than 2 meters, after passing the place is not allowed to have electrical appliances.4, hose do not close to the stove surface, so as not to be flame barbecue.5, the hose does not cross the wall, doors and windows.6, do not press or fold the hose, so as not to plug, affecting the continuous gas supply.At the interface, and appliance, 7 hose valve, please use the pipe truss, to prevent the shedding of leakage.

Q:The engine cylinder head cover behind the drop rubber tube what reason (Xichai 490 engine) (note the valve chamber cover tube)

The valve chamber of the engine cylinder head cover counterclockwise with 8~10 open wrench counterclockwise unscrew rocker screw. Place the piston at the top dead center, turn the rocker head wire clockwise until the hand can not be moved, then back half a circle, then lock the nut.

Q:My company does high-quality rubber tube, all of the core method, and why use EPDM to do the inner tube, it is difficult to take off the core, please point out! What's the reason?

The core needs to be removed, and if it is too long, the mandrel can be divided into two sections and separated from the 2 sides

Q:Does rubber hose drink from tap water? Is it poisonous?

Galvanized steel pipe is divided into cold galvanized pipe, hot galvanized pipe, the former has been banned, and the latter is also advocated by the state for the moment, can be used. In 60s and 70s, developed countries began to develop new types of pipes, and galvanized pipes were banned. China's Ministry of construction and other four ministries have also issued a civilization, from two, 000 years since the prohibition of galvanized pipe, the current New District cold water pipe has rarely used galvanized pipe, and some of the hot water pipe is galvanized pipe.