Home >> YUANDA Valve
In recent years, Yuanda has witnessed a rising awareness in engineering field and international field, established long-term and stable cooperation relationship with famous enterprises and several transnational groups in fields such as petroleum, petrochemical, water conservancy and steel and made its vision a reality. Yuanda attaches importance to after-sales services, continues to improve after-sales service mechanism: it's Yuanda's service philosophy to stay customer-oriented and provide quick-response and quality services. We commit that we are always ready to help no matter where you are.
Yuanda backwater valves are a safeguard against water damage. Anyone who has ever experienced flooding caused by a reversal of sewage flow never wants to be confronted with a reoccurrence. Damage is extensive and generally uninsurable. Backwater and its attendant problems must therefore be seriously considered in terms of adequate control and prevention by individuals responsible for the design and construction of buildings. To overlook the possibility of backwater or underestimate the destruction and unsanitary conditions that will result from uncontrolled backwater would be a grave mistake. Yuanda Backwater Valves provide the flood control that is required.
Yuanda offers four basic types of assemblies.
SWING-CHECK - The most frequently used backwater valve is the swing-check, rotating, self-cleaning disc type. This valve is normally furnished with the disc installed in the closed position to prevent circulation of sewer gas. If desired, the disc can be assembled to hang open to permit circulation of air by moving the hinge pin to its alternate position.
SHEAR-GATE - This manually operated shear-gate valve is spade shaped to cut through any sewage debris that may become lodged on the seating surface providing positive assurance of complete closing against backwater.
BALL-FLOAT CHECK - This type of backwater valve is incorporated in certain floor drains and traps. It is also used as auxiliary equipment for bottom outlet floor drains to provide independent backflow protection. The ball-float seals against the ring seat with backflow.
COMBINATION SHEAR-GATE AND SWING-CHECK VALVE - This combination valve provides dual protection against backflow. The automatic swing-check responds with instant closure when backflow starts. During emergency periods, when a serious backwater condition exists or is expected, or when the building drainage system is to be shut down, the manually operated shear-gate is closed until the building drain line can be used again. The shear-gate valve is kept open when the building drainage system is in use. This type of backwater valve is intended primarily for installation in new construction.
Contact US
Related Information
3/4 ball valve for air compressor4 Check Valve Cast Ironwhat type of flow does a globe valve give4 Inch Check Valve4 inch ball valve price3 Inch Check ValveCheck Valve Price12 Inch Check ValveKeystone Butterfly ValveCast Iron Non Return Valve6 Inch Cast Iron Check Valvepvc globe valveCarbon steel valveshow to read a globe valveball valve working principlewhat is ball valve in plumbing3/4 plastic ball valveKnife gate valve manufacturer China1/2 inch ball valve lowesglobe valve direction of flowcontrol valve manufacturers china1/4 ball valve plasticCast Iron Lift Check Valve3 way globe valveBall ValveNon Return Valve Suppliers ChinaWhere is pressure relief valve usedButterfly Valvehow does a 3 way mixing globe valve workhow does bellows seal globe valve workhigh performance butterfly valve6 Inch Pvc Swing Check Valvegate valve supplierwhere to place globe valve on an irrigation systempneumatic butterfly valvewhat is a gate valvehow to repair gate valvelug style butterfly valveglobe valve flow control1 inch brass ball valve threadedwhat is the difference between a gate and globe valvehow to replace a gate valve with a ball valvehigh pressure gate valves manufacturerWhere are solenoid valves usedsteam globe valve
