Lift Check Valves
A lift check valve is a non-return valve whose disc rises in the flow direction and drops onto its seat under its weight or a spring when flow stops. Because the disc moves on a straight guided path it shuts off tightly and withstands high pressure differences.
It is used on steam, condensate, boiler feed water and high-pressure process lines where tightness matters. Because of its globe-like body the pressure loss is higher than a swing type, so it is mostly preferred in small and medium sizes.
Main Applications
- Steam and condensate lines
- Boiler feed water lines
- High-pressure process lines
- Pump discharge lines (small sizes)
- Thermal oil and hot water circuits (by model)
Technical Data
| Type | Lift disc |
|---|---|
| Connection | Flanged |
| Size | By model (group range DN15–DN600) |
| Pressure class | By model (group PN16–PN63) |
| Body | By model (cast iron, ductile, cast steel, stainless) |
| Disc and seat | By model |
| Orientation | Usually horizontal line, body upright (by model) |
| Temperature | By body material |
Material Options
| Part | Lift check valve |
|---|---|
| Body | By model |
| Cover | By model |
| Disc | By model |
| Seat | By model |
Which material? Most lift check valves are installed on horizontal lines with the cover facing up; check the datasheet for models suited to vertical lines. On steam lines the body material is chosen from the pressure-temperature table.
Advantages
Tight Shut-Off
- Disc on a straight guided path
High Pressure
- Group up to PN63
Steam Suited
- Reliable on hot lines
Compact
- In small and medium sizes
Construction and Design Features
- Globe-type flanged body
- Vertically moving disc
- Disc guide and cover
- Metal or soft seat (by model)
Write the medium, pressure-temperature and DN size; we will confirm the lift check valve with a suitable body material.
How to Choose?
- Define the conditionsState pressure and temperature for steam, water or process media.
- Choose the body materialPick cast iron, cast steel or stainless from the pressure-temperature table.
- Check orientationConfirm horizontal or vertical suitability in the datasheet.
- Set the sizeChoose DN considering pressure loss.
Complementary Products
Why ORFA?
Other Flanged Check Valves
Dual Plate Check Valves
Dual plate check valves stop reverse flow with two spring-loaded plates and fit between flanges.
Details →
Disc Check Valves
Disc check valves stop reverse flow with a spring-loaded disc and have a slim body that fits between flanges.
Details →
Flanged Swing Check Valves
Flanged swing check valves stop reverse flow with a hinged disc and have flanged ends.
Details →
Flanged Ball Check Valves
Flanged ball check valves stop reverse flow with a ball inside the body and have flanged ends.
Details →
PVC-U Wafer Swing Check Valves
PVC-U wafer swing check valves have a rigid PVC body and a hinged disc and fit between flanges.
Details →
Wafer Swing Check Valves
Wafer swing check valves fit between flanges and stop reverse flow with a hinged disc.
Details →Our Lift Check Valves
ORFA supplies lift check valves in a range of pressure classes, sizes and connection types to suit your application. Descriptions, technical specifications, materials and dimension tables are available on each detail page.
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