Techcon 19mm ID x 3mm Buna O-Ring

Description

Dispensing valve parts for Techcon service include O-rings that seal fluid and air passages inside compact dispensing equipment. This Buna O-ring has a 19mm inside diameter and 3mm cross section, giving maintenance teams a matched elastomer seal for rebuild work where the original O-ring size must be preserved.

Dispensing valve parts fitment and use

Use this O-ring when the service position calls for a 19mm ID by 3mm cross-section Buna seal. O-rings in dispensing valves help close gaps between housings, ports, fittings, and moving subassemblies so air pressure and dispensed fluid stay in the intended path. Buna is commonly used for general-purpose elastomer sealing where the dispensed material and cleaning practice are compatible with nitrile rubber.

• 19mm inside diameter for the specified seal groove.
• 3mm cross section for matched compression in the assembly.
• Buna elastomer for general dispensing equipment service.
• Useful for rebuild kits, preventive maintenance, and leak repair.

Dispensing valve parts ordering notes

Confirm both dimensions before ordering. An O-ring that fits loosely may leak, while an oversized cross section can pinch, cut, or keep the mating parts from seating. Related O-rings, seals, valve kits, and fluid-path components are grouped in the dispensers, mixers, and nozzles category.

Inspect the groove, mating face, and lubricant condition during installation. A clean groove and correct compression are just as important as the seal material. Replace damaged O-rings during planned service instead of waiting for a leak, especially on dispensing stations that run filled adhesives, sealants, or other materials that are hard to clean once they enter the wrong chamber.

Specifications

For manufacturer family context, see Techcon dispensing systems.

Need Help?

Need help matching this O-ring to your dispensing valve drawing? Call (800) 220-1966 or email [email protected].