Lift check valve

A lift - check valve is a check valve in which the disc, sometimes called a lift , can be lifted up off its seat by higher pressure of inlet or upstream fluid to allow flow to the outlet or downstream side. A guide keeps motion of the disc on a vertical line, so the valve can later reseat properly. A lift check valve is commonly used in piping systems in which globe valves are being used as a flow control valve. They have similar seating arrangements as globe valves.

Lift check valves are suitable for installation in horizontal or vertical lines with upward flow.

A lift -check valve is a check valve in which the disc, sometimes called a lift , can be lifted up off its seat by higher pressure of inlet or upstream fluid to allow flow to the outlet or downstream side. Lift Check valve The seat design of a lift -Check valve is similar to a Globe valve. The disc is usually in the form of a piston or a ball. In lift Check valves, the disc is precisely guided and fits perfectly into the dashpot. Browse Industrial Lift Check Valves in the United Brass Works, Inc.

Lift type check valves are available in straight through, T, or WYE pattern. This type of check valve may be installed horizontally or vertically but those lift checks relying on gravity must be installed so that the disc travel is vertical. The seat of a lift -check looks very similar to Glove type valve.

The lift check valve in its closed position offers a more effective shutoff and tighter seal than the Swing Check. Industries such as water treatment, medical, food and chemical processing, petrochemical and agriculture use this particular type of pump to normalize the unidirectional flow of various materials such as water, chemical vapors, air, steam and more. These valves open in sequence, injecting the gas that forces fluid in the tubing to the surface. What is a true union swing check valve? Do I need the check valves?

Forward flow lifts the poppet, opening the valve. Reverse flow seats the poppet against the orifice, closing the valve. For instance, in boiler aplications, this valve is used as feed water check valve , preventing reverse water flow through the boiler during normal operation or during boiler shutdown. Free Shipping by Amazon.

Parker’s LC-Series Lift Check Valve has been designed for a wide variety of temperature extremes from -100⁰F to 900⁰F (-148⁰C to 482⁰C). To achieve this performance, the check valve must be mounted in the proper orientation as the bonnet nut is clearly marked. Stop Check Valve is a combination of a lift check valve and a globe valve. These valves can be closed with the help of a stem that is not connected to the valve disc during normal operation and make it possible to use these valves as a regular NRV. On the high pressure small diameter check valve , the valve ball can be used.

The shape of the lift check valve is the same as that of the shut-off valve , so its fluid resistance coefficient is large. Stainless Steel Lift Check Valve , 0. SS- 53SPlease enter or update the user part number and a comment (optional).

Leak-free, tight sealing, protection against reverse flow and minimal flow direction changes are at the core of Flowserve check valve designs. Looking For Brass Check Valves ? We Have Almost Everything on eBay.