What are the factors affecting the price of cast iron gate valve?
Cast iron gate valve is a kind of valve, with small flow resistance, high height, long opening and closing time and other characteristics, the disadvantage is not convenient maintenance. Cast iron gate valve can be divided into wedge gate valve and parallel gate valve according to the sealing surface configuration, wedge gate valve can be divided into: single gate type, double gate type and flexible gate type; Parallel gate valves can be divided into single gate type and double gate type. According to the screw position of the valve stem, it can be divided into bright stem gate valve and dark stem gate valve. Cast iron gate valve can be widely used in water, sewage, construction, petroleum, chemical, food, medicine, textile, electric power, shipbuilding, metallurgy, energy system and other body pipeline as a regulating and blocking device.
The advantages of cast iron gate valve:
1. Small flow resistance. The medium channel inside the valve body is straight through, the medium flows in a straight line, and the flow resistance is small.
2. Less effort when opening and closing. Less effort than globe valves, because whether open or closed, the direction of movement of the gate is perpendicular to the direction of media flow.
3, high height, long opening and closing time.
4. water hammer phenomenon is not easy to produce. The reason is the long shutdown time.
5. the medium can flow in any direction to both sides, easy to install. Gate valve channels are symmetrical on both sides.
6. the length of the structure is small.
7. sealing surface easy to wear, affect the service life. When opening and closing, the gate and the valve seat two sealing surface friction sliding, under the action of medium pressure is easy to produce abrasion wear, affect the sealing performance, shorten the service life.
- The price is more expensive. Contact sealing surface more, more complex processing, and more parts.
- the body is simple, the structure length is short, the manufacturing I art is good, the application scope is wide.
- Compact structure, good valve rigidity, smooth channel, small flow resistance, sealing surface made of stainless steel and hard alloy, long service life, PTFE packing, reliable sealing, light and flexible operation.
Cast iron gate valve, as an essential control switch in the connection of various water pipes, manages the operation of media on various pipelines or equipment. The price of cast iron gate valve with good quality is relatively higher, and in the actual purchase and use process will be affected by a number of factors, whether it is weight or the quality of the valve body and material or processing, will cause the difference in price, then what are the factors affecting the price of cast iron gate valve?
1. Different manufacturers
The cost of different cast iron gate valve manufacturers is different, so the price in the market is also very different. The production technology of different manufacturers and the quality of the gate valves produced are also different. These factors are the key to the difference in the price of cast iron gate valves.
2. Different models
The performance of cast iron gate valve models and suitable pipelines are also different. In order to meet the needs of different pipelines, the production and development of a variety of models enables it to be more widely used in the industry. Different models and specifications, the market price is also different naturally.
3. Precision of machining
Cast iron gate valves of the machining accuracy is one of the main factors affect the price, the higher the precision and quality is the best in the process of using matching performance is also higher, from the table with a gate valves can also be good to identify the accuracy of the smooth surface smooth and no burr or no bubbles hardware plating shining is not the whole of these are the machining accuracy.
4. Brand difference
Different brands of cast iron gate valves also exist in the price is different, the higher the brand reputation in the market, the higher the price will be corresponding, the general well-known brand products in quality can also reach a very high level.
5. Changes in market conditions
With the change of the market will also affect the price of cast iron gate valve fluctuations, generally market fluctuations mainly because of the change of various raw materials, and affect the price of gate valve fluctuations.
Gate valves will be affected by the price of the manufacturer, model, the processing precision and brand or the change of the market and change, so the user must pay attention to when buy these factors affect the price, and can be used according to their own needs to choose have a reputation of gate valve, in order to reduce the cost of buying can also choose to product quality high reliability value is relative low word of mouth.