Bellow shut-off valve

Product Overview

Bellows disconnecting valve is a high-performance valve with bellows sealing technology, widely used in petroleum, chemical, electric power, metallurgy, pharmaceutical and other industries, especially suitable for high temperature, high pressure and corrosive media piping system. The valve is suitable for water, steam, oil, gas and some corrosive liquids, with excellent high temperature, corrosion and pressure resistance. The bellows seal replaces the traditional packing seal, which can effectively prevent media leakage and avoid maintenance problems caused by aging or damage to the packing. Product features include superior sealing performance, low fluid resistance, flexible opening and closing, long service life, no need for frequent maintenance. Bellows shut-off valves are widely used in applications with high requirements for sealing, and are able to maintain a stable sealing effect during the fluid cut-off process. Its main function is to accurately control the flow of media in the pipeline system and stop, to prevent leakage and pipeline system failure, to ensure the safe operation of the system. With its efficient and reliable performance, the bellows shut-off valve has become an ideal choice for industrial piping systems.

Main features

1. Leak-proof stem seals
Double-layer 316L stainless steel bellows (10,000+ cycles)
Secondary graphite packing as backup seal
100% Helium Leak Test to ISO 15848

2. Precision flow control
Parabolic valve plug design ensures precise Cv characteristics
Equal Percentage Flow Characteristics
Fine tuning capability (accuracy ±1%)

3. Robust structures
One-piece bonnet design (no gasket leakage points)
Forged valve body materials ranging from ASTM A105 to F316
Dynamically loaded packing to ensure constant sealing force