Q:Water heater hose 4 points and 6 points difference

4, in charge of and 6 in charge, from the caliber is obvious to see out, 6 in charge of greater than 4 in charge. Inside diameter 4 inches, have 13.2 millimeter about, 6 inches are 19.8 millimeter, 6 inches of pipe than 4 inches big. 6 points in diameter 1.6cm, 4 points in diameter 1.2cm, see thickness can be distinguished, 4 branch pipe diameter is 20mm, and 6 points water pipe diameter is 25mm, general heating with 6 points, slightly thick. The tap water is 4 inches fine.

Q:Laboratory condensate water pipe must use rubber tube, shall not use latex tube reasons

Suction flat test: in the 1min vacuum, after maintaining 10min, with diameter of 0.9 times the diameter of the hose rolled over, check the degree of collapse of the hose. Some standards used to measure the rate of change in the outer diameter of the hose to indicate the extent of deformation of the hose.

Q:The basic buret is a rubber tube is inlaid with a glass bead to replace glass piston. Why this burets cannot be used to install Potassium Permanganate solution?

Are made of glass, acid burette glass piston burette, no piston, just at the tip of a rubber tube, rubber tube with glass beads, glass or the lower beak. Why not the same because of acid burette, glass and alkali reaction, generate silicate, sticky, if it is very easy to use acid burette, the hole is blocked, damaged burets.

Q:How do you get the joint of the plastic pipe?

Special fittings for plastic pipes and special welding machines for plastic pipes are used. The pipe fittings and pipe heads are heated by melting machine and inserted together.

Q:Will the outside of the brake hose of the car burst apart?

Now there is no leakage of brake oil, but also afraid of the oil leak in the running, after all, related to safety, I suggest not to save this money (brake hose is not expensive)

Q:Which is safer for stainless steel bellows and rubber tubes for gas pipelines?

Stainless steel bellows, installation is simple and quick. Because the elasticity of the stainless steel bellows is good, only two special tools can be bent in hand during the operation, and no joints can be arranged in the wall or the decorative layer when buried, which reduces the risk of leakage.

Q:Between the two flanges in the middle of the rubber tube, what is the name of the connection?

Rubber flexible joint is also called rubber flexible joint, flexible rubber joint, flexible rubber joint, rubber shock absorber and so on.

Q:Faucet hose connection problem

Ball valves can be made, but easy to leak. More than a few times to install a feeling, when the screw does not use brute force ah.

Q:How often do the oil - resistant rubber pipes undergo atmospheric pressure testing?

Bending test: after bending the hose to a certain extent, measure the minimum outside diameter of the bending part and the ratio of the outside diameter before bending, the passing capacity of the steel ball and the bending force when the tube is pressurized.

Q:How can you pump out the water from a fishpond with a rubber tube?

First, to make the water end elevation is equal to or less than the pond bottom elevation, with a rag like volume by water outlet end, not tight, no leakage on the line, one on the water inlet end station pool dike protection is slightly higher than that of embankment, the other one with the container to the rubber tube irrigation, until all the filling pipe, if small diameter