What is the price for 4 inch butterfly valve? Please visit our official website: www.belovalve.com ,and talk with our sales department, they will give you detailed price for 4 inch butterfly valve according to your specific requirements. Before a specific price is offered, please offer the following information, then a detailed price can be sent:
1. what is the operating method of the 4 inch butterfly valve you are looking for:
For operating methods, we have manual lever butterfly valve, worm gear operated butterfly valve, pneumatic actuated butterfly valve, electric actuated butterfly valve,etc. With different operation actuator used, the price will be obviously different;
2. what is the end connection for that 4 inch butterfly valve you are looking for:
With different end connections, there are wafer type butterfly valve, wafer lug type butterfly valve, flange type butterfly valve, and welded butterfly valve, the price for different connected butterfly valve will be different;
3. what is the structure of the 4 inch butterfly valve you are looking for:
For the structure of butterfly valve, we have concentric butterfly valve(also called center line butterfly valve), single eccentric butterfly valve, double eccentric butterfly valve , triple eccentric butterfly valve(also called triple offset butterfly valve), for different structural butterfly valves, the price will be different;
4. what is the sealing material used in the 4 inch butterfly valve you are looking for:
For sealing material used in butterfly valve, we have NBR lined butterfly valve(NBR seat butterfly valve), EPDM lined butterfly valve(EPDM seat butterfly valve), PTFE lined butterfly valve(also called PTFE seat butterfly valve), FKM lined butterfly valve(FKM seat butterfly valve), those butterfly valves with one of that four resilient material mentioned above as sealing material are called soft sealing butterfly valves, we have another sealing butterfly valve is called metal hard sealing butterfly valve, just as its name implies, this kind of butterfly valves are using some kind of metal as the sealing material. With different sealing material used, the butterfly valve will have different price; for those butterfly valve with same specifications, the metal sealing butterfly valve will have higher price than soft sealing butterfly valve.
5. what is the nominal pressure of the 4 inch butterfly valve you need?
For the nominal pressure of butterfly valves, we have butterfly valves with nominal pressure PN10, PN16, PN25, PN40, CLASS 150, CLASS 200, CLASS 300, CLASS 600, 10K butterfly valve, 20K butterfly valve,etc. With different nominal pressure, the price of butterfly valve will be different;
6. what is the material for the main items in the 4 inch butterfly valve you need:
The main items in butterfly valve include manual lever handle, worm gear box, pneumatic actuator, electric actuator, valve body, valve seat, valve disc, valve stem,etc, with different material used for each items, the butterfly valve price will be different:
6.1. for manual lever handle: there are three kind of lever handle: iron handle, pressed handle, aluminum lever handle
6.2. for valve body: the material for valve body can be: gray cast iron, ductile cast iron, carbon steel, stainless steel, aluminum bronze,etc..
6.3. for valve seat: the valve seat in butterfly valve can be divided into metal hard seat, and resilient soft seat. The hard sealing seat is made of some kind of hard alloy, the resilient soft seal valve seat is made of EPDM, NBR, PTFE, and FKM. the different sealing material will be used for different real working conditions( different working pressure, different working temperature,etc);
6.4. for valve disc: the valve disc can be made of carbon steel, stainless steel(2Cr13,304, 316, 316L). the butterfly valve with different material disc will have different price;
Those items listed above are the main parts for one 4 inch butterfly valve, As a buyer, you should offer the manufacturer those details, so a specific quotation can be sent;
Belo Valve is a professional butterfly valve manufacturer, we can have you to select the proper butterfly valve you should purchase, do not hesitate to contact us: