Bellows products serve as the driving force for switch actuation, allow for precise regulation control, support the accuracy of measuring instruments, and maintain dependable sealing in valve systems. Typically, these products function by responding to changes in pressure or temperature. They find applications in a wide array of industries, including HVAC heating systems, aerospace and automotive sectors, medical devices, measurement and control systems, weighing technology, power generation, oil and gas exploration and production, high-purity and vacuum environments in semiconductors, and sealing for electrical distribution systems. These examples represent only a fraction of the many applications and industries we support.
Designed to prevent leakage around a rotating shaft. It typically utilizes spring pressure to maintain contact between the seal's nose and the shaft shoulder. Alternatively, some seals rotate along with the shaft, forming a seal against a fixed plate.
Transforms pressure energy into precise movements or forces. Pressure can be applied either internally within the bellows or externally within a cup-shaped structure, with the external method generally preferred. When protection against overload is necessary, a floating head equipped with a limit stop is commonly employed.
Functions as a sealing device for joints or mechanical components like levers and linkages that undergo movement. It prevents leakage, particularly in scenarios where mechanical motion needs to pass through an enclosure wall. The pivot point labeled as "P" indicates the optimal location for rotation.
A specialized pressure motor, consisting of a bellows unit where one internal side is evacuated to establish a stable reference pressure. Variations in pressure on the opposite side are measured against this fixed reference, generating a predictable mechanical movement or stroke. Typically, a control spring is integrated to manage stroke rates, along with a mechanical stop to limit movement and prevent damage due to excessive displacement from the atmospheric pressure difference.
Designed to accommodate expansions caused by thermal or pressure changes. When equipped with appropriate end fittings, it can function as a storage reservoir for liquids or gases. Typical applications include serving as an oil reservoir in electrical cable joints and as thermal expansion compensators in oil-filled transformers.
Function similarly to pressure motors but utilize a sealed, temperature-sensitive liquid or gas as the pressure source. The thermal stimulus can either act directly on the bellows element or be detected remotely through a sensing bulb connected via flexible tubing. These motors are extensively used to actuate valves, switches, and other devices in response to temperature fluctuations.
Involves two bellows units connected by a tube, enabling hydraulic transfer of motion or force. When the system is completely filled with fluid, any linear movement in one bellows is immediately and equally transferred to the other. To safeguard against overload, both bellows are typically equipped with mechanical stops.
Designed with a packless and leak-free structure to accommodate thermal expansion in pipelines that transport steam, water, and other fluids. They can also serve to absorb vibrations or create flexible connections within the piping system.
A packless valve design, which eliminates the need for traditional packing materials. This sealing method is commonly applied to control or contain steam movement or adjustments in various types of equipment.