Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, check valves generally are very small, simple, and inexpensive. Check valves work automatically and most are not controlled by a person or any external control. (Wiki)
Check valves are available in following types
Jual Check Valve | Distributor Check Valve indonesia | swing check valve | Jual Dual Plate Check Valve | Jual Lift Check Valve | Distributor Check Valve | Beli Swing Check Valve Harga Murah Berkualitas | Cilegon, Valve Europa | Valve Germany | Valve Japan | Valve China | Valve USA | Supplier Swing Check Valve | Jakarta | Surabaya | Karawang | Bekasi | Palembang | Banten | Serang | Tanggerang| Jambi | Kalimantan, Sulawesi | Forged Steel High Temperature, Steam Valve