Product Model: GSD341X/H/Y 

Nominal Diameter: DN50~2000mm 

Nominal Pressure: PN0.6~1.6MPa 

Applicable Temperature:  ≤120℃ 

Main Material: Carbon steel, Stainless steel, etc.

Applicable Media: Air, water, steam, coal gas, oil products, etc.

Product Overview
The telescopic butterfly valve is a dual-purpose product, integrating a telescopic joint (expansion joint) and a flanged butterfly valve into one unit. It can axially expand and contract within a certain range, which is beneficial for accommodating the thermal expansion and contraction of pipelines, eliminating pipeline vibration, and overcoming the offset caused by the misalignment of pipeline connections within a certain angle range. It greatly facilitates the installation and disassembly of valve pipelines, thereby improving economic benefits.

Product Features

1. Novel and reasonable design, unique structure, light weight, convenient operation, and fast opening and closing.

2. Besides functioning as flow regulation and shut-off, and compensating for the thermal expansion and contraction caused by pipeline temperature differences, the telescopic butterfly valve also provides convenience for the installation, replacement, and maintenance of valves.

3. The sealing parts are adjustable and replaceable, ensuring reliable sealing performance.

Product Applications
Telescopic butterfly valves are widely used in water supply, drainage, and gas pipelines with temperatures ≤ 80°C and nominal pressures ≤ 1.6 MPa in industries such as food, pharmaceuticals, chemicals, petroleum, power, light textile, and papermaking, for regulating flow and shutting off media.