What influence the butterfly valve price?-Belo Valve

No matter for the purchase manager or final user of butterfly valves, each time when you need butterfly valves, you will send your inquiries to many supplier of butterfly valves, and then plenty various quotations will be sent back, then you will encounter a headache problem: why various different prices are sent for the same specifications butterfly valves? how to decide which price is reasonable and choose the proper butterfly valve supplier? Today we are gonna talk about what influence the butterfly valve price, so once you read this article, when you are choosing butterfly valve supplier, you know how to compare their price: 

If you want to get a cost-effective butterfly valve product, choose the lowest price for the same quality butterfly valves, you should know those factors which affects the price of the butterfly valve. In addition to the technical parameters such as nominal diameter and nominal pressure, the material quality of butterfly valve components is an important factor affecting the price of butterfly valve. 

The accessories of butterfly valve include valve body, valve disc, valve seat, valve stem, manual lever, worm gear box, pneumatic actuator, electric actuator, bushing,etc. The application of different material for each components will affect the quotation of the butterfly valve; 

the price of gray cast iron butterfly valve is the cheapest; while the stainless steel butterfly valve has the most expansive price;

The body material for butterfly valve can be ordinary gray cast iron, ductile cast iron, carbon steel, stainless steel, according to different material performance, stainless steel butterfly valve＞ carbon steel butterfly valve＞ductile cast iron butterfly valve＞gray cast iron butterfly valve. Stainless steel butterfly valve can adapt to the most complex working conditions; 

Among the four different material butterfly valves, the gray cast iron butterfly valve is the cheapest, while the stainless steel butterfly valve is much more expensive. If there is no strict material quality requirements in pipeline working conditions, it is recommended that you can use ductile cast iron butterfly valve, the strength of ductile iron butterfly valve is better than that of gray cast iron butterfly valve,close to carbon steel, while ductile iron butterfly valve has a competitive price over carbon steel butterfly valve; 

the price of butterfly valve with stainless steel disc is higher than that of the butterfly valve with ductile iron disc;

The valve disc of butterfly valve is made of two common valve plate materials: ductile cast iron disc (D.I disc in short) and stainless steel disc(CF8 disc/SS disc in short),because the valve disc of the butterfly valve is directly connected with the medium in the pipelines and will be corroded by the medium, so the material properties of the valve disc in butterfly valve must be better than that of the valve body in butterfly valve, so the price of the butterfly valve with stainless steel valve disc is higher than that of the butterfly valve with ductile cast iron valve disc; 

The price of butterfly valve with PTFE seat is higher than that of the butterfly valve with NBR seat;

the price of hard sealing butterfly valve is higher than that of the soft seal butterfly valve;

The butterfly valve can be divided into soft seal butterfly valve and hard seal butterfly valve according to different valve seat materials. The valve seat of soft sealing butterfly valve is mainly made of three types of materials: EPDM, nitrile rubber/NBR and PTFE. And also the price of the butterfly valve with PTFE seat is higher than that of the butterfly valve with NBR seat; the material of the seat of the wafer type hard sealing butterfly valve is mainly metal carbide, and the price of the hard sealing butterfly valve is higher than that of the soft sealing butterfly valve. The price of butterfly valves with different materials are different. Which kind of material should be used for valve body, valve disc, valve seat depends on the medium of the pipeline where this kind of butterfly valve will be installed; 

Now we know that the butterfly valve fitting material affects the price of the butterfly valve. So only after we know the material for different components in butterfly valve, we can decide whether that butterfly valve is qualified, and whether its quotation is reasonable or not. It is impossible to decide whether this butterfly valve is good or not, cheap or expansive just by the products pictures; 

If you have no idea which kind of butterfly valve should be selected, and whether some butterfly valve price is higher, and some are cheap, please contact us. Belo Valve will offer you professional advice for your valve selection. And also we will quote you the competitive price according to your specific requirements. We can always be trusted;