Split-Body Valves Stainless Steel - V-Pack Series 760V | Valpres

Valpres 760V Stainless Steel Flanged Ball Valve

The Valpres 760V is a two-piece flanged ball valve for line isolation in industrial liquid, gas and utility services. The body material is ASTM A351 CF8M, with CF8M / A479 TP316 ball and TP316 or 17-4 PH stem. The valve is available in PN16 and PN40 versions, with an operating temperature range from -40°C to +180°C and vacuum service capability down to 10⁻² torr.

Construction and Sealing Arrangement

The valve uses TFM-MPTFE seats, PTFE V-pack stem sealing, Graphoil sealing elements and a PTFE thrust washer. This arrangement is relevant where stem leakage control, chemical compatibility and stainless steel wetted parts are required.

Typical Applications

• Chemical and petrochemical process units
• Industrial water, condensate and utility circuits
• Instrument air, nitrogen and technical gases
• Low and medium pressure steam, subject to seat temperature and media compatibility verification
• Food, pharmaceutical and clean process duties requiring CF8M stainless steel construction

Suitable Media and Operating Conditions

• Neutral and mildly corrosive liquids compatible with CF8M and PTFE-based sealing
• Compressed air, inert gases and auxiliary gas distribution
• Vacuum and low-emission isolation duties within stated limits
• Processes requiring manual or automated quarter-turn shut-off

PN16 and PN40 Variants

Selection between PN16 and PN40 should be based on design pressure, operating temperature, mating flange rating, allowable pressure drop and line specification. The PN40 version includes a trunnion arrangement for DN200 with Δp 25 bar.

Actuation and Control Interface

The valve is supplied with an ISO actuator mounting pad, typically F04 to F12 depending on DN. It can be fitted with pneumatic or electric on/off actuators, limit switches, solenoid valves and position feedback devices for plant automation systems.

Standards and Certifications

• TÜV SIL 3 certification
• Fire Safe design according to EN ISO 10497 / API 607
• Fugitive emission testing according to ISO 15848-1

Engineering Selection Notes

• Confirm pressure-temperature rating against the actual process condition.
• Check seat compatibility for steam, solvents, chemicals and cleaning fluids.
• Verify flange standard, face-to-face requirement and actuator torque margin.
• For automated service, evaluate cycle frequency, fail position and instrument air availability.

FAQ

Is the 760V suitable for throttling?
It is primarily an isolation valve. Continuous throttling should be reviewed due to seat wear and ball erosion risk.

Can it be used on steam?
Yes, only where pressure, temperature and seat material compatibility are confirmed for the steam condition.

When should PN40 be selected?
Use PN40 where the line rating, design pressure or differential pressure exceeds the PN16 selection basis.