Steel lined F4 butterfly valve D371F4

Steel-lined F4 butterfly valve D371F4 butterfly valve adopts a PTFE-lined butterfly plate with a spherical sealing surface, and is equipped with a silicone rubber gasket at the base of the valve seat to adjust the sealing performance of the valve. It has a long service life and can be quickly cut off or Used to adjust the flow rate. Suitable for occasions with reliable sealing and good adjustment characteristics. The valve body adopts a split type, and the sealing at both ends of the valve shaft is controlled by the rotating base surface between the butterfly plate and the valve seat and fluorine rubber to achieve compact structure, beautiful appearance, reasonable process and reliable performance. Ensure that the valve shaft is not in contact with the fluid medium in the cavity. It is very convenient to replace the valve shaft. The valve can be completed without removing the pipeline.

The products are widely used in the transportation of liquids and gases (including steam) in pipelines in various industrial fields, especially in the use of severely corrosive media, such as: sulfuric acid, hydrofluoric acid, phosphoric acid, chlorine, strong alkali, aqua regia, etc. Strong corrosive medium.

Connection form: wafer type, flange type connection.

Applicable temperature: -80-200℃

Drive device: handle, worm gear drive, electric, pneumatic.

Lining materials: PTFE (F4), FEP (F46), PFA, PO, etc.

Steel lined F4 butterfly valve D371F4 size table

Design standard: HG/T3704

Structure length: GB/T12221 GB/T15188.2 ASME B16.10

Flange standards: GB/T9113.1, JB/T79.1, ASME B16.5

Connection method: wafer type, flange type

Nominal pressure: 1.0, 1.6MPa, 150Lb, JIS10K

Inspection test: JB/T9092, GB/T13927, API598