Bellows Seal Valve is an accordion-like metal tube fastened to the valve stem and to the bonnet, forming a leak-proof seal with negligible friction.

2021年3月25日 · A bellows valve is a specialized industrial valve that uses a bellows element to create a hermetic seal, ensuring minimal leakage and maintaining system integrity. The main components of a bellows seal valve include:

Explore high-pressure, pneumatically actuated bellows-sealed valves with all-metal seal to atmosphere and with full pressure rating in either direction. Discover high-purity valves with positive stem retraction, smooth actuation, and union bonnet construction for enhanced cycle life and cleanliness.

Powell offers bellow-seal valves in ASME classes 150, 300 and 800 in a variety of materials. Each valve is tested per API 598. Every bellow assembly is helium leak-tested to assure zero leakage. Non-rotating stems prevent torsion of bellow. Lubricant fittings to ensure proper lubrication of stem bushing for efficient opening and closing.

2021年11月22日 · The bellows valve is a valve with a bellows as the sealing element between the valve stem and the valve body. It is often used on occasions with high temperature and high-pressure requirements. The upper end of the bellows and the cap are welded together, and the cap is placed between the valve body and the valve cover.

When operated, bellows valves expand or contract to enable the valve to open or close. The bellows design allows for high-flow capacity while maintaining an optimized form factor. Bellows valves effectively control the flow of gases or other fluids within the system.

2021年3月17日 · Bellows seal valves incorporate a cylindrical metal tube that expands and contracts like an accordion to create a hermetically sealed closure in a valve stem. The bellows gets compressed when the valve is in the open position and expands when the valve is closed.

2024年11月7日 · When it’s critically important to keep a gas or liquid inside a system, consider a bellows seal valve. Bellows seal valves incorporate a cylindrical metal tube that expands and contracts like an accordion to create a hermetically sealed closure in a valve stem.

2023年8月7日 · A bellows seal globe valve is a specially designed valve that is highly suitable for industries dealing with hazardous substances. The valve’s unique design ensures that even the smallest leakages, which can be extremely critical in certain industries, are prevented.

Bellows seal valves are valves employed in piping systems to safeguard against leakage. When selected and installed properly, they minimize the risk of potentially harmful chemicals causing injury or illness to workers and damage to the surrounding environment.