Is the VSTI-BE Stainless Steel Stopper compatible with aggressive chemicals and seawater environments?

Yes. The VSTI-BE Stainless Steel Stopper is manufactured from AISI 316 stainless steel and uses an elastomer gasket, giving it excellent corrosion resistance and long service life in aggressive environments. Its material and construction make it suitable for seawater and many chemical applications commonly encountered in marine, chemical, and food-processing industries. The design also includes a 4:1 safety factor and DIN 3852 type E sealing, ensuring reliable, leak-resistant performance under pressure. Note: Compatibility with specific aggressive chemicals can vary with concentration, temperature and the exact elastomer used; verify compatibility for your particular fluid and operating conditions before deployment.

Does the VSTI-BE Stainless Steel Stopper require special maintenance or inspection intervals to ensure reliable sealing in critical systems?

VSTI-BE Stainless Steel Stopper does not demand unusual maintenance beyond standard practices for critical sealing components. Recommended actions to ensure reliable sealing: - Regular visual inspections: check for external corrosion, damage to hex key faces, thread integrity and any sign of elastomer extrusion or hardening. - Gasket checks and replacement: the elastomer rectangular gasket should be inspected at planned intervals and replaced if flattened, cracked, swollen or showing chemical attack. Replace more frequently in aggressive media or high-temperature service. - Torque/fit verification: ensure correct installation torque and thread engagement to maintain the designed sealing force; recheck after initial service and during periodic maintenance. - Functional leak tests: perform pressure or bubble tests after installation and at scheduled intervals appropriate to system criticality and operating conditions. - Environmental considerations: in marine, chemical or food-processing environments, increase inspection frequency and use compatible gasket materials recommended by the manufacturer. - Documentation and safety margin: adhere to the system’s maintenance schedule that reflects the VSTI-BE’s 4:1 safety factor; document inspections, replacements and test results. For critical systems, define inspection intervals based on operating pressure, temperature, media aggressiveness and regulatory requirements; typical intervals range from months to annually, with more frequent checks for severe conditions. When in doubt follow OEM guidance or consult the manufacturer for application-specific recommendations.

VSTI-BE Stainless Steel Stopper

Additional information

Material	SS – stainless steel

The DIN 2353 plug type VSTI-BE is a high-quality sealing solution designed for reliable performance in demanding hydraulic and pneumatic applications. Equipped with an external BSP thread and engineered according to DIN 3852 type E, it ensures secure sealing through an elastomer gasket with a rectangular cross-section, providing excellent resistance to leakage even under high pressure. Manufactured from premium AISI 316 stainless steel, the plug offers outstanding durability, superior corrosion resistance, and long service life, making it ideal for use in aggressive environments and industries such as marine, chemical, and food processing. Its hex key design allows for quick and precise installation, while the built-in safety factor of 4:1 guarantees maximum operational security and confidence in critical systems. This robust and versatile component is the perfect choice for professionals seeking a dependable, maintenance-friendly, and cost-effective solution that combines strength, safety, and efficiency.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
HD-VSTI-02-BE-SS	DIN 2353 plug 1/8" BSP, AISI 316	-	400
HD-VSTI-04-BE-SS	DIN 2353 plug 1/4" BSP, AISI 316	-	400
HD-VSTI-06-BE-SS	DIN 2353 plug 3/8" BSP, AISI 316	-	400
HD-VSTI-08-BE-SS	DIN 2353 plug 1/2" BSP, AISI 316	-	400
HD-VSTI-12-BE-SS	DIN 2353 plug 3/4" BSP, AISI 316	-	400
HD-VSTI-16-BE-SS	DIN 2353 plug 1" BSP, AISI 316	-	400
HD-VSTI-20-BE-SS	DIN 2353 plug 1.1/4" BSP, AISI 316	-	315
HD-VSTI-24-BE-SS	DIN 2353 plug 1.1/2" BSP, AISI 316	-	315

The DIN 2353 plug type VSTI-BE is a high-quality sealing solution designed for reliable performance in demanding hydraulic and pneumatic applications. Equipped with an external BSP thread and engineered according to DIN 3852 type E, it ensures secure sealing through an elastomer gasket with a rectangular cross-section, providing excellent resistance to leakage even under high pressure. Manufactured from premium AISI 316 stainless steel, the plug offers outstanding durability, superior corrosion resistance, and long service life, making it ideal for use in aggressive environments and industries such as marine, chemical, and food processing. Its hex key design allows for quick and precise installation, while the built-in safety factor of 4:1 guarantees maximum operational security and confidence in critical systems. This robust and versatile component is the perfect choice for professionals seeking a dependable, maintenance-friendly, and cost-effective solution that combines strength, safety, and efficiency.