• High Quality A3 Type PP-R ball valve with brass ball System 1
High Quality A3 Type PP-R ball valve with brass ball

High Quality A3 Type PP-R ball valve with brass ball

Ref Price:
$5.73 / watt get latest price
Loading Port:
Ningbo
Payment Terms:
TT or LC
Min Order Qty:
1000 watt
Supply Capability:
100000 watt/month

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High Quality A3 Type PP-R ball valve with brass ballPP-R ball  valve  with  brass  ball size:20-40

 

1.Material:Random Polypropylene(Hyosung R200P); 
2.ISO9001&ISO14001; 
3.Standard:GB/T 18742.3-2002, DIN8077/8078; 
4.OEM also ok

 

Q: What is the difference between floating and fixed ball valves?
Floating ball valve ball is floating in the medium under pressure, the ball can have a certain displacement along the center axis and pressed in the export side of the seat ring, to ensure that the export side seal and the inlet end cannot seal, the floating ball valve is a single force seal form.
Q: Electric ball valve installation need to pay attention to what?
8, electric and pneumatic valve in order that no special contract allows only vertically installed in the indoor use. 9, after the completion of the pipeline construction, all the valves on the pipeline line shall be opened and the residual dirt shall be removed.
Q: What does "DN25 Q41F46-16C" mean?
DN is nominal diameter, nominal diameter (or nominal diameter), that is, all kinds of pipe and pipe accessories of general diameter of 25 mm
Q: Q4110 what is the ball valve? What does each number stand for?
It's Q41-10Q- stands for ball valves; 4- stands for connecting flanges; 1- is straight through floating ball; 10 means valve bore 10If it's Q4110, you're not sure
Q: Home PPR pipe ball valve, which is good?
See what you use as a route. The main valve, then use the cut-off valve, because the cut-off valve is high, low, out of the valve. If the toilet or kitchen, often use the valve with the ball valve, because it is not bad, more suitable for regular switching use
Q: What is the difference between ball valve and butterfly valve?
The butterfly valve consists of valve body, valve seat, valve plate, valve rod, all parts are a significant drain on the outside, one eye can see; and the ball valve is composed of a valve body, the valve core (a round ball), valve rod, valve position is in the valve body inside, the naked eye can see only a part, so the sealing performance of the ball valve than the butterfly valve; butterfly valve structure is relatively simple, generally with low pressure valve, high pressure valve can reach 64 kg. The ball valve structure is relatively complex, more resistant to high pressure, the ball valve up to 100 kg.Butterfly valves are divided into soft seal and seal, soft seal butterfly valve is generally perpendicular to the center of the plate, is the valve plate, valve seat, valve stem is the center position of the highest temperature soft sealing butterfly valve is 150 degrees below the pressure of 16 kg, hard seal butterfly valve can be divided into single eccentric, double eccentric, three eccentric, we generally use more than three eccentric, because the three eccentric according to its structure, better sealing performance, hard seal butterfly valve pressure is 64 kg; the valve can also be divided into soft seal and seal, soft seal valve maximum temperature is below 280 degrees, the pressure is on 64 kg, hard seal ball valve temperature can reach 425 degrees below the pressure below 100 kilograms. Shanghai Sino US valve for your answer, for reference.
Q: Under what circumstances with the butterfly valve, under what circumstances with the ball valve?
Selection principle of ball valve:1, oil, natural gas transmission mains, need to clean the pipeline, and be buried in the ground, all pass by, the ball valve full welded structure; buried in the ground, select all pass through ball valve welded connection or flange connection; pipe flange connection, welding, selection of connection, all pass through or shrink the diameter of the ball valve.2, product oil pipeline and storage equipment, choose flange connected ball valve.3, the city gas and natural gas pipeline, choose flange connection and internal thread of the floating ball valve.1 、 in the oxygen piping system of the metallurgical system, the fixed ball ball valve should be selected after the strict degreasing treatment and the flange connection.2, low temperature medium piping system and device, should choose to use the valve cover of low temperature ball valve.3 、 the lifting rod type ball valve can be used on the pipeline system of the catalytic cracking unit of the oil refining unit.4, chemical systems such as acid and alkali corrosive media and piping systems, it is appropriate to choose austenitic stainless steel, PTFE seat sealing ring for all stainless steel ball valve.5 、 metal to metal sealing ball valve can be used in metallurgy system, power system, petrochemical equipment, piping system or device of high temperature medium in city heating system. 6, the need for flow regulation, you can choose the worm gear drive, pneumatic or electric with V shaped opening of the regulating valve.
Q: What's a twin hot melt ball valve?
Is a plastic ball valve, connecting France is hot melt.
Q: Our factory has part of the ball valve in the direction of movement and normal ball valve is the opposite direction: anti clockwise for the turn off, clockwise. Excuse me, what's the reason for this?Excuse me, is this because the valve body installs the reason of the contrary or the reason, the ball valve is thus designed?Are there any positive and negative points when the ball valve is installed?
Ordinary ball valve is the reverse turn off, the general ball valve without direction requirements. Each kind has the direction request, generally has the arrow or the nameplate explanation on the valve body.
Q: What are the applicable conditions of ball valves?
This deformation can compensate the ball manufacturing accuracy and surface roughness, and ensure the sealing performance of the ball valve.Because the valve seat ring is usually made of plastic, so the choice of valve structure and performance, to consider the ball of fire and fire, especially in petroleum, chemical, metallurgy and other departments, the use of ball valve in the equipment and piping system of flammable and explosive medium, should pay attention to fire and fire.Usually, the double adjustment, strict sealing, slurry wear necking channel, the rapid opening and closing movement (1/4 turn open and close), high pressure cut-off (pressure difference), low noise, there is the phenomenon of cavitation and gasification, a small amount of leakage to the atmosphere,It is recommended that ball valves be used in piping systems with small operating torque and low fluid resistance.

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