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Swing check valve is in inner rocker arm swing structure. All switch parts are installed in valve cavity without getting through valve body. Except for the middle flange which is equipped with gasket seal and seal ring, there is no other outside dots. Leakage outside the valve is forbidden. Swing type check valve rocker arm and valve disc are connected with spherical surface, which make valve disc possess a certain degree of freedom at 360 degree with a proper position compensation. When swing check valve is fully open, fluid pressure is almost unimpeded. The pressure through valve is relatively small.
It is suitable for clean medium; therefore, medium containing solid particles and Larger viscosity shall not be applied. Thevalve disc of swing check valve is in rotating movement around axis of rotation. Its flow resistance is usually less than that of lift check valve, which is suitable for large bore application.
The swing check valve is also called a check valve or a check valve, and its function is to prevent the medium in the pipeline from flowing backward. The valve of the opening and closing member is opened or closed by the flow of the medium and the force to prevent the back flow of the medium from being called a check valve. The check valve is an automatic valve type, mainly used for the one-way flow of the medium, only allowing the medium to flow in one direction to prevent accidents. This type of valve should be installed horizontally in the pipeline.
Swing check valve is suitable for nominal pressure PN1.0MPa~42.0MPa, Class150-2500; nominal diameter DN15~1200mm, NPS1/2~48; working temperature -196~540°C for various pipelines, used to prevent The media is reversed. By using different materials (WCB, CF8(M), CF3(M), 1Gr5Mo, 15CrMo1V, it can be applied to various media such as water, steam, oil, nitric acid, acetic acid, strong oxidizing medium and urea. Oil, chemical, pharmaceutical, fertilizer, electricity and other pipelines.
The swing-type check valve adopts the built-in rocker arm swinging structure. All the opening and closing parts of the valve are installed inside the valve body, and do not penetrate the valve body, except for the sealing gasket and the sealing ring of the middle flange part, the whole There is no leakage point to prevent the possibility of valve leakage. The swing-type check valve has a spherical connection structure at the joint of the rocker arm and the valve flap, so that the valve flap has a certain degree of freedom within a range of 360 degrees, and has appropriate micro-position compensation.
Suitable for clean media, not suitable for media containing solid particles and high viscosity.
Nominal Bore: 1-13/16"~4-1/16"
Working Pressure : 2000psi ~ 15000psi
Temperature Level: –75° F ~ +250° F
Body Material: AA、BB、CC、DD、EE、FF、HH
Specification Level: PSL1~PSL3G
Performance Level: PR1~PR2
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