Brass Vertical Lift Check Valve

Essential Backflow Prevention for Submersible and Jet Pump Systems

Our Brass Vertical Lift Check Valve is engineered to be the critical safety component for all well pump and water pressure systems. Designed to operate reliably in a vertical orientation, this valve prevents backflow and water hammer, protecting your pump from damage and maintaining the pressure column in your pipeline.

🌟 Key Features and Benefits

Robust Construction: The entire valve (body and stem) is made of high-quality Brass (Full Copper), ensuring excellent corrosion resistance and long-term durability in contact with water, oil, and gas.
Reliable Sealing: Utilizes a Single Lift Disc (升降式阀板) structure combined with a Stainless Steel Spring. This mechanism provides quick, positive shutoff to reliably prevent media reversal.
Vertical Operation: Specifically designed as a Vertical Check Valve (立式止回阀), ensuring the disc falls reliably into the closed position under gravity and low pressure, which is ideal for in-line pump installations.
High Versatility: Available in a wide range of sizes and connection types (Male/Female Threads) to fit virtually any standard pumping setup.

⚙️ Technical Specifications (Summary)

Parameter	Specification	Note
Valve Type	Vertical Lift Check Valve (Lift Disc Type)	Single Disc, Straight-through design.
Body Material	Brass (Full Copper)	Durable and corrosion-resistant body and stem.
Spring Material	Stainless Steel	For reliable and consistent closing action.
Nominal Pressure	$\text{PN}1.6\,\text{MPa}$	High working pressure rating.
Working Medium	Water, Oil, Gas	Wide range of applicable fluids.
Working Temperature	-10°C≤t≤100°C	Suitable for standard hot and cold fluid systems.
Connection Type	Threaded (Internal and External options available)	Standard NPT/G-thread sizes ( $1/2''$ to $4''$ ).
Actuation	Passive Control (Flow-Actuated)	Opens and closes automatically based on flow direction.

🛠️ Important Note for Well Pumps

For submersible well pump installations, the check valve is installed directly above the pump or at regular intervals in the drop pipe to prevent the water column from falling back into the well, which would lead to pump cycling and premature failure. The reliable seating of this vertical lift design is crucial for protecting your investment.