Flanged Telescopic Butterfly Valve

The flanged telescopic butterfly valve features a modular design: By adding an expansion joint to the butterfly valve, it can be equipped with the compensation capability of a telescopic stop joint, reducing installation distance and effectively lowering project costs. The expansion joint can be adapted to different butterfly valve types.

Core Advantages of the Flanged Telescopic Butterfly Valve

1. Pipeline Stress Compensation: The integrated telescopic structure absorbs axial and radial displacement caused by thermal expansion and contraction of the pipeline and mechanical vibration, reducing stress in the pipeline system and preventing cracking at the joints.

2. Reliable Sealing Performance: Utilizing elastic sealing materials (such as EPDM and NBR) or metal seals, the disc and valve seat precisely align to achieve a bidirectional seal, suitable for low to medium pressure conditions.

3. Convenient and Efficient Installation: The telescopic function allows for adjustment of the connection length during pipeline installation, reducing flange alignment requirements and saving installation time and labor costs.

4. Low Flow Resistance and Excellent Flow: The disc's simple structure allows for a nearly straight flow path when fully open, resulting in a low resistance coefficient, making it suitable for conveying high-flow media (water, gas, slurry, etc.).

5. Compact and Lightweight Structure: Compared to traditional valve + compensator combinations, this flanged telescopic butterfly valve is smaller and lighter, saving space and facilitating maintenance.

6. Widely Applicable: Commonly used in water supply and drainage, sewage treatment, HVAC, and chemical pipelines, it provides dual functions of flow regulation and displacement compensation.