• Precision molded polypropylene is reinforced with fiberglass for additional strength.
• Self-aligning ball moves freely against the PTFE seats for smooth operation. The valve opens and closes with very little presure on the handle.
• Ball is diamond turned, after molding, to make it spherically perfect, which provides precise contact between ball and seats.
• PTFE self-lubricating stem bushings and seats cannot stick or bind.
• FKM seals.
• Stainless steel bolts.
• Maximum operating pressure :200 psi

FKM: Good for most material.

• Advantages: Outstanding resistance to high heat; excellent resistance to oil, gasoline, hydraulic fluids and hydrocarbon solvents; good flame retardance; very good impermeability to gases and vapor; very good resistance to weather, oxygen, ozone, and sunlight.
• Limitations: Poor resistance to oil; gasoline and hydrocarbon solvents; adhesion to fabrics and metal is poor.
• Temperature Rating: -20°F to 400°F

PTFE: The most chemically resistant material 

• Advantages: Outstanding weather resistance, high resistance to ozone, and high resistance to the degrading effects of exposure to such solvents as acetone, MEK, and xylene.
• Limitations: Very poor elastic memory making it subject to tearing during installation.
• Temperature Rating: -300°F to 400°F