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High temperature and high pressure lifting check valve
High temperature and high pressure lifting check valve is suitable for medium and small diameter pipeline of various working conditions of water medium pipeline and petroleum, chemical, metallurgy and other media pipeline
Application
High temperature and high pressure lifting check valve is suitable for medium and small diameter pipeline of various working conditions of water medium pipeline and petroleum, chemical, metallurgy and other media pipeline. Rely on the disc weight and fluid pressure difference to automatically prevent fluid flow back. Because the valve is closed by the disc weight, it should be installed on the horizontal pipe.
Characteristic
• The valve body is borrowed from the high temperature and high pressure globe valve body. The valve body adopts the full forging process, with uniform organization, beautiful appearance and no organizational defects;
• Disc is the only moving part, compact and reliable;
• The sealing surface is made of cobalt-based hard alloy to ensure high hardness and poor hardness, wear and corrosion resistance, and effectively prolong the service life;
• Spring loading design can be added to ensure that low pressure conditions can be sealed.
Design Guides
| Design and manufacture | Pressure and temperature reference | Inspection and test |
| NB/T 47044、JB/T7746 | NB/T 47044 | NB/T 47044 |
| ASME B16.34 | ASME B16.34 | ASME B16.34 |
Product Range
| Nominal pressure | PN16～PN760（Class150—Class4500） | |
| Nominal size | DN10～DN65（NPS 3/8～NPS 2 1/2 ） | |
| Body matenal | 20、25、A105、F36.CL2、F22.CL3、F91、F92、F304、F316、F347 | |
| Test pressure(MPa) | Strength test (Water pressure) | 1.5×P(38℃ pressure rating) |
| Sealing test (Water pressure) | 1.1×P(38℃ pressure rating) | |
| Applicable Temperature | -29℃～650℃ | |
| Applicable medium | Steam, water | |
Note：
1、The valve beyond the above specifications can be customized according to user requirements;
2、The applicable temperature range of each valve shall be subject to the actual pressure bearing material of the valve.