Polished Inox-val 2 Piece Ball Valves - 7000 Series | Valpres

Valpres 7000 Polished Stainless Steel Ball Valve

Two-piece threaded ball valve with polished stainless steel body in ASTM A351 CF8M, used for flow isolation in small and medium bore process lines where external cleanability and corrosion resistance are relevant selection criteria.

Technical Data

• Sizes: 1/8”–4”
• Pressure rating: PN140 up to 1/2”, PN105 up to 1”, PN64 up to 2”, PN25 up to 4”
• Temperature range: -20°C to +160°C
• Vacuum service: down to 10⁻² torr
• Threaded connections: BSP or NPT
• Body / end connector: ASTM A351 CF8M
• Ball: A479 TP316 or CF8M
• Stem: A479 TP316
• Seats: PTFE
• Thrust washer: TFM
• O-ring: FKM / Viton
• Handle: stainless steel AISI 316

Suitable Media and Operating Conditions

Typical services include process water, compressed air, inert gases, utility lines, vacuum lines and compatible chemical fluids. Final selection should verify pressure at the selected diameter, operating temperature, fluid compatibility with PTFE and FKM, and the required thread standard.

Applications

• Industrial utility distribution and isolation duties
• Compressed air and nitrogen manifolds
• Clean-area auxiliary piping with frequent external washdown
• Process skids requiring compact threaded isolation valves
• Maintenance isolation points where stainless external surfaces are preferred

Variant Comparison

The polished version is selected instead of the standard Inox-Val configuration when the installation environment requires an easier-to-clean external surface and a stainless steel handle. The pressure envelope and seat material limits remain key constraints; the valve is for on/off isolation, not continuous throttling.

Sealing and Leakage Considerations

PTFE seats provide broad chemical compatibility within the stated temperature range. FKM / Viton elastomers must be checked against the actual fluid, especially for steam, aggressive solvents, oxidizing chemicals or high-temperature cyclic service.

Actuation Options

The valve is supplied with a manual stainless steel lever. For automated isolation, specify a compatible actuated configuration or mounting arrangement with pneumatic or electric actuator, including torque check at differential pressure, cycle frequency and fail position requirements.

Standards and Certifications

TÜV certification and ATEX / fire-safe documentation may be available on request. Certification requirements should be stated at procurement stage, including valve size, service fluid, pressure class and installation zone classification.

FAQ

• Can it be used for vacuum? Yes, within the stated limit of 10⁻² torr, provided the sealing materials are compatible with the service.
• Is it suitable for throttling? No. It should be applied as an isolation valve; partially open operation may increase seat wear.
• Which thread type should be specified? BSP or NPT must match the piping standard to avoid leakage and assembly damage.