Wafer Ball Valves - Wafer PN10/PN16/ANSI150 - 725000 | Valpres

Valpres 725000 Wafer Ball Valve

The Valpres 725000 is a stainless steel wafer-pattern ball valve in ASTM A351 CF8M, intended for installation between PN10, PN16 and ANSI 150 flanges. Smaller sizes are also suitable for PN40 service, subject to the pressure rating by DN.

Technical Data

• Sizes: DN25 to DN100
• Pressure rating: PN40 up to DN50; PN20 from DN65 to DN100
• Temperature range: -20°C to +160°C
• Vacuum service: 10⁻³ torr
• Body: ASTM A351 CF8M stainless steel
• End connection insert: ASTM A182 F316
• Ball: ASTM A479 TP316 or ASTM A351 CF8M
• Seats and stem seat: PTFE
• O-rings: FKM
• Stem: ASTM A479 TP316 / 17-4PH
• Manual handle: carbon steel

Hydraulic Characteristics

The series provides Kv values from 64.5 to 1363.3, depending on DN. The full-bore design reduces pressure loss when the valve is fully open, provided the selected DN matches the pipeline and process flow requirement.

Applicable Standards and Certifications

• Flange compatibility: PN10, PN16, ANSI 150; PN40 in smaller sizes
• Optional certified executions: ATEX and TÜV SIL 3
• Material basis: stainless steel CF8M / 316 wetted metallic components

Suitable Media and Operating Conditions

Typical services include water, compressed air, neutral gases and industrial liquids compatible with CF8M stainless steel, PTFE seats and FKM elastomers. Chemical compatibility must be checked against concentration, temperature and cleaning procedures.

Valve Selection Notes

• Select DN based on required Kv, allowable pressure drop and pipe velocity.
• For DN65 to DN100, account for the lower PN20 pressure rating.
• Use the wafer body where compact face-to-face length is required between flanges.
• The V-ball version is not available in DN100.

Actuation and Variants

The standard configuration is lever operated. For on-off automation, pneumatic or electric actuation should be specified only after confirming valve torque, duty cycle, fail position, actuator sizing factor and any ATEX or SIL requirement.

Maintenance and Leakage Considerations

PTFE seats provide tight shut-off for compatible clean services. FKM O-rings require verification for solvents, steam exposure and high-temperature cycling. In abrasive or crystallising fluids, seat wear and operating torque should be reviewed during valve selection.

Typical Industrial Use Cases

• Utility water and process water isolation
• Compressed air distribution headers
• Neutral gas isolation on skid systems
• Stainless process piping in chemical and general industry
• Compact isolation between existing PN or ANSI flanges

FAQ

Can it be used on ANSI flanges?
Yes, the valve is specified for ANSI 150 installation in addition to PN10 and PN16 flange systems.

Is it suitable for throttling?
It is primarily an isolation ball valve. Throttling duties should be evaluated separately, especially for seat wear, cavitation risk and control range.

What limits the maximum pressure?
The allowable pressure depends on DN: PN40 up to DN50 and PN20 from DN65 to DN100.