Voltech tejas valves offers three-way ball valves are available in l-port and t-port types. These ball valves are available for duplex filters, heat exchangers, multiport lines and chemical processing industries. The materials of construction for ball valves includes ss304/ 316, monel, hastelloy-c, cs, etc. The properties of low frictional ptfe seats are further enhanced by design to ensure positive shutoff. Periodic maintenance and lubrication are not required, as ptfe seats possess self-lubricant characteristics. A special lip seat design ensures retention of seals for many thousand cycles in handling oil, air, chemicals, gas, acids, alkali, oxygen, instrument isolation, freon, vacuum and many other services. Triple tire sealing arrangement across the system is provided to prevent any leakage .The primary seal between the body and stem is affected by a ptfe o-ring, carbon-filled gland packing and stainless steel gland material provide functions of flexibility and rigidity at the top of the stem to prevent any leakage across the stem length. The two belleville spring washer`s live load and stem and adjust for any wear or expansion and contraction due to temperature fluctuations. Gland leakage problems associated with rising stem gate/globe valves eliminates completely by a slit nut at the top which prevents unnecessary movement of sealing rings.
