Swing check valves allow forward flow and close automatically as the flow subsides or reverses. Inside the body, a hinged disc swings away from the seat to open the passage, then returns toward it to restrict backflow.
Farpro supplies cast iron, cast steel and stainless steel swing check valves, including the H44T, H44H and H44W series. The range below brings those constructions together so you can compare materials and installation details.
Swing Check Valve Range
Swing Check Valve Stainless Steel – API H44W
The H44W stainless steel swing check valve uses a hinged disc that opens with forward flow and closes to prevent
Swing Check Valve Cast Steel – ANSI API H44H
The H44H is a flanged cast steel swing check valve that opens with forward flow and closes as the flow
Swing Flanged Check Valve Cast Iron – H44T
H44T swing check valve is a type of check valve that allows flow in one direction and prevents backflow in
Choosing a Swing Check Valve for the Line
Swing check valves are widely used in water, utility and industrial process piping. The hinged mechanism is straightforward, but it still needs enough forward flow for stable disc movement. Sizing only by the pipe diameter can overlook how the valve will behave when the system runs at reduced flow.
At a pump discharge, closing response matters as well as normal operation. Pipe layout, pump shutdown and the rate at which flow changes can influence noise and pressure surges. A swing check valve should therefore be considered as part of the system, rather than as a universal answer to water hammer. Our guide to check valves on pump discharges discusses those operating conditions in more detail.
Compare the H44H cast steel model with the cast iron and stainless steel alternatives above. Where space or shutdown response leads to a different design, our wafer and silent check valves offer other arrangements to consider.
Replacing a Swing Check Valve
If the old valve is noisy, leaking or wearing quickly, another valve of the same size may not solve the underlying problem. Tell us what happens during operation, particularly at low flow or when the pump stops.
For a straightforward replacement, the model, body markings and installation dimensions help us identify a suitable option. We can then compare the available valves with your existing pipework.
Farpro Valve is a large global valve manufacturer engaged in the research, development, production and sales of valves.
Our product standards include: GB/JB, API, ANSI, AWWA, DIN, JIS, GOST, NF, etc.
Our valves are available in 12 major categories, 200 series and 4000 sizes, including gate valves, globe valves, ball valves, butterfly valves, check valves, diaphragm valves, pressure reducing valves, plug valves, traps, etc.
The annual output reaches 80,000 tons. All products are widely used in petroleum, petrochemical, chemical, electric power, metallurgy, water conservancy, construction, pharmaceutical, drainage and other fields.
Our products sell well in the markets of Germany, England, France, Italy, Brazil, Poland and more than 30 countries and regions in Europe, Central Asia, West Asia, etc.