Ball Valve flanged ends - 2 pcs. Full bore ball valve flanges DIN PN 16 - 2525 | Genebre

Genebre 2525 Flanged Ball Valve PN16

The Genebre 2525 is a two-piece, full-bore ball valve with DIN PN16 flanged ends and face-to-face length according to DIN 3202 F-4. The body is ductile iron GGG-40 / EN-GJS-400-18U-LT, with AISI 304 ball and stem. Seats are PTFE + 15% glass fibre; the stem O-ring is Viton. Operating temperature range: -30°C to +180°C, subject to pressure, medium and seal compatibility.

Sizes and Operation

Available from 1/2" to 8". Standard operation is by manual lever with locking device. For automated service, actuator selection must be checked against breakaway torque, operating frequency, safety position and the available mounting arrangement.

Suitable Media and Operating Context

• industrial water, cooling water and plant utilities
• compressed air and non-lubricated air lines
• HVAC heating and chilled-water circuits
• non-corrosive liquids compatible with ductile iron, AISI 304, PTFE/GF and Viton
• equipment isolation on PN16 distribution headers

Engineering Selection Notes

The full-bore passage reduces pressure drop compared with reduced-bore valves and is useful where line losses or flushing velocity are relevant. Selection should verify PN16 rating, process temperature, flange standard, gasket type, bolt set, medium compatibility and allowable leakage class for isolation duty.

Standards and Materials

• Flanges: DIN PN16
• Face-to-face: DIN 3202 F-4
• Body: GGG-40 / EN-GJS-400-18U-LT ductile iron
• Ball and stem: AISI 304 stainless steel
• Seats: PTFE with 15% glass fibre
• Stem sealing: Viton O-ring

Sealing and Maintenance Considerations

PTFE/GF seats provide low operating torque and chemical resistance for many neutral services. Viton stem sealing is suitable for many oils, air and water-based utilities, but compatibility must be checked for solvents, acids, alkalis and steam. Periodic inspection should include stem leakage, flange gasket condition and lever locking function.

Variant and Application Differences

• Full bore: lower pressure loss and better suitability for flushing than reduced-bore designs.
• Flanged PN16: preferred where removable equipment isolation and bolted maintenance access are required.
• Ductile iron body: suitable for many utility services; not a substitute for stainless steel in corrosive process fluids.
• Manual operation: appropriate for isolation; frequent cycling or remote control may require pneumatic or electric actuation.

FAQ

Is it intended for throttling?
It is primarily an isolation valve. Continuous throttling can damage seats and increase leakage risk.

Can it be used on steam?
Only if the manufacturer’s pressure-temperature rating and seal compatibility confirm the specific steam condition. PTFE/GF and Viton limits must be respected.

What should procurement verify?
DN size, PN16 flange drilling, DIN 3202 F-4 length, material certificates, PED/CE documentation where applicable, seal material, operating temperature and actuator requirements.