PTFE stem washer

A PTFE stem washer is a flat, circular washer typically placed around the valve stem to act as a seal, bearing, or insulator. It prevents fluid leakage along the stem while allowing smooth rotation or movement. Due to its low friction, non-stick surface, and resistance to wear and chemicals, PTFE is one of the most suitable materials for this application.

• Low friction coefficient: Enables smooth valve stem movement with minimal wear.
• High chemical resistance: Withstands acids, alkalis, solvents, and corrosive gases.
• Wide operating temperature: From –200°C to +260°C.
• Non-stick & self-lubricating: Prevents buildup and scaling on washer surfaces.
• Excellent insulation: Electrically non-conductive and thermally stable.
• FDA-approved material option: Suitable for hygienic and cleanroom applications.

• Prevents leakage and wear in valve assemblies
• Ensures smooth stem actuation in manual or automated systems
• Long service life with no need for lubrication
• Machined to precise tolerances for easy integration
• Available in virgin and filled PTFE grades to suit specific loads and environments

• Ball valve and plug valve assemblies
• Control valves in chemical and pharmaceutical plants
• Shaft sealing and spacing in rotary flow systems
• Flanged stem fittings in pipelines
• Food and beverage valve stems requiring sanitary sealing

• Oil & gas
• Chemical & petrochemical
• Pharmaceuticals & biotech
• Food & beverage processing
• Water treatment
• Power & energy

• CNC precision manufacturing for consistent quality
• Capability to produce stem washers to exact specs or drawings
• Quick delivery with export-compliant packaging
• Material compatibility consultation available
• Proven track record in valve component supply for OEMs and end-users

• Flat and stepped stem washers available
• Supplied individually or as part of valve sealing kits
• Available in virgin, glass-filled, carbon-filled, bronze-filled PTFE
• Custom batch sizes supported – from prototypes to bulk supply