Custom engineered pure PTFE convoluted bellows designed for high precision load cell weighing systems and low pressure nitrogen lines. This ultra flexible, zero stiffness connector eliminates piping stress to ensure 100 percent weighing accuracy while providing premium chemical and corrosion resistance.

Soshh Ultra Flex series represents the premium standard in pure PTFE convoluted bellows, specifically engineered for applications where mechanical piping stress interferes with sensitive instrumentation. By utilizing a 100 percent pure solid molded PTFE core without heavy metal braiding, this connector provides the ultimate flexibility required for modern industrial weighing systems and chemical processing lines.
In modern processing plants, rigid piping connections are the leading cause of calibration drift and measurement errors in load cells and weighing hoppers. Standard braided metal hoses or thick walled plastic tubes possess inherent mechanical stiffness. When temperature shifts or pressure fluctuates, they transfer parasitic forces to the weight sensors. Soshh Ultra Flex bellows isolates the vibration and movement entirely, maintaining a zero stress buffering zone so that your instruments report 100 percent accurate data.
While standard industry offerings are limited to small diameters, Soshh specializes in heavy duty engineering designs. We support large diameter requirements up to 8 inch (DN200) and even 12 inch (DN300) nominal sizes. These large scale pure PTFE convoluted bellows are thick-walled and CNC-machined to withstand vacuum and low-pressure powder handling environments while maintaining supreme flexibility. Whether you need a large flexible connection for a major weigh hopper or a primary process pipeline, we can customize the length and flange specifications to fit your exact drawings.
Size Range: Available from 1 half inch up to 8 inch (DN200) nominal diameters as standard, with custom sizes up to 12 inch.
Working Pressure: Optimized for vacuum and positive pressure systems under 2 bar.
End Connections: Flanged ends conforming to international industrial standards including ASME, DIN, and JIS.
Every process plant faces unique spatial and physical constraints. Soshh provides fully customized engineering support, allowing you to define the exact installed length, bore dimensions, and flange specifications required for your plant layout. We support global industrial manufacturing with rapid engineering dispatch and comprehensive technical compliance. For detailed drawings or a formal application review, contact the Soshh engineering team today.
FDA & USP Class VI compliant pure PTFE flexible hose with 360° rotatable ASME lap joint flanges. Zero metal ion contamination, -0.4 bar anti-vacuum helical wire, and zero-torque load cell isolation for battery electrolytes and gravimetric feeders.
Premium solid virgin PTFE corrugated bellows turned via high-precision CNC. Thick-walled trapezoidal design engineered for extreme high-pressure surges (up to 1.6 MPa) and absolute high vacuum loops. Available with custom-welded stainless steel limit tie-rods to fully absorb pipeline blind flange forces, or as basic flexible displacement models. Ideal for lithium battery materials (copper/iron contamination-free), semiconductor ultra-pure fluids, and glass-lined reactors. Non-standard engineering customizes large-bore sizes up to a maximum diameter of DN1200. Request 2D/3D CAD submittals at amin@soshh.com.