Rubber Hose 2SN DN12

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The hose consists of an inner tube of oil resistant synthetic rubber,two wire braided reinforcement,and an oil and weather resistant synthetic rubber cover. Working temperature from -40°C up to+100°C.

Nominal		Inside	Braid	Outside	Working pressure		Test pressure	Burst pressure	Bend radius	Weight
mm	inch	mm	mm	mm	bar	psi	bar	bar	mm	kg/m
5	3/16	4.8	9.5	11.8	250	3625	600	1000	90	0.91
6	1/4	6.4	11.1	13.4	225	3265	540	900	100	0.21
8	5/16	7.9	12.7	15.0	215	3120	510	850	115	0.24
10	3/8	9.5	15.1	17.4	180	2610	430	720	125	0.33
12	1/2	12.7	18.3	20.6	160	2320	385	640	180	0.41
16	5/8	15.9	21.4	23.7	130	1885	310	520	200	0.45
19	3/4	19.0	25.4	27.7	105	1525	250	420	240	0.58
25	1	25.4	33.3	35.6	88	1275	210	350	300	0.88
31	1.1/4	31.8	40.5	43.5	63	915	150	250	420	1.23
38	1.1/2	38.1	46.8	50.0	50	725	120	200	500	1.51
51	2	50.8	60.2	64.0	40	580	96	160	630	1.97

Q: The newly purchased natural rubber tube is too large. How can it be removed?: When rubber is peculiar, it can be scrubbed by hydrogen peroxide. After drying, the odor will disappear. Or with waste tea sent to rubber products, tea has the role of adsorption odor.

Q: Why can the air conditioning connection be made of copper tube? How about rubber tube and aluminium pipe? Please heroes pointing for the dishes.: In fact, aluminum can, such as the refrigerator evaporator is aluminum, not only with the hose, the hardness is not enough in fact even the refrigerator either with brass or aluminum, for a long time or leakage, so you can not use the hose. The aluminum tube in the fridge is the easiest place to leak

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: The rubber is sheathed on a metal cylinder. How should they be connected?: With the combination of metal rubber is coated with adhesive before production and rubber vulcanization shaping, you can use this temporary experiment 502 geliahao for glue or adhesive, but the disadvantages of this thing with winter is not strong, the metal surface must be clean

Q: What kind of material is medical rubber tube?: General medical grade silicone tube, environmental protection, no odor, in line with food grade certification FDA/SGS/ROHS/LFGB, widely used in the medical industry. Friends do not understand, you can contact me. New silicon rubber pipe

Q: What is the essential difference between rubber expansion joint and rubber joint?: A rubber joint is a hollow rubber product used for flexible connections between metal pipes. The flexible joint is also called soft rubber pipe joints, rubber joints, soft rubber joints, flexible joints, high-pressure rubber joints, rubber shock absorber etc.. It is divided into 3 kinds: flange type, fixed flange type and thread type by connection. The structure can be divided into single sphere, double sphere and curved sphere. A tubular rubber component is composed of inner and outer layers of rubber, cord and steel ring, which is vulcanized and molded and then combined with a metal flange or a parallel joint. This product can reduce vibration and noise, and can be compensated by thermal expansion and cold contraction due to temperature changes. It is widely used in various piping systems.

Q: Installation of rubber flexible joint: The rubber flexible joint is strictly prohibited to install over displacement limit during installation.

Q: How often do the oil - resistant rubber pipes undergo atmospheric pressure testing?: Low temperature bending test at low temperature: hose clamp on rigid torsion wheel diameter hose diameter 12 times, for 6 hours at a low temperature, twisted 180 degrees within 12s when the measured torque and the standard temperature measured torque ratio. Low temperature bending: hose clamped in the diameter of the hose within 12 times the torsion wheel, parked at low temperatures for 24 hours, in the 10s to reverse 180 degrees, check whether or not the internal and external plastic brittle fracture and damage. Test of low temperature brittleness measurement hose is the most simple specimen should be bent 90 degrees at low temperature, or a hose after freezing compressed 1/2 to see whether the embrittlement, another method is to use a certain weight of the heavy hammer falls freely, to see if the specimen embrittlement impact specimen.

Q: The selection of valves and fittings has the following requirements: The joint of the valve is threaded with an internal thread, so that the connection in the installation is easier to select transition joints.

Q: What's the difference between hose and hose for compressed air?: In use, it is usually marked with color. For example, the intake is made of blue, and the exhaust is made red, but it is not necessary.

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