TRUNNION


TRUNNION VALVES
- Nova Milanese (MB) -


Logo - Crotti Valvole

Trunnion valves are pivoted ball valves, 2-way, shut-off, full passage (item 90) or reduced passage (item 95), bidirectional.

TRUNNION

  • STANDARD EXECUTION

    Pivoted ball valve, 2-way, shut-off, full bore (item 90) or reduced bore (item 95), bidirectional. Design according to EN 12516, ISO 17292, PED 2014/68/EU, ASME B16.34, API 6D.

    RF or RTJ flanged terminals in accordance with EN 1092-1, ANSI B16.5 or welded. Gaps in accordance with EN 558 or ANSI B16.10.

    Fire Safe in accordance with API 6FA, API 607 and ISO 10497. ATEX ZONE II 2GD (Directive 2014/34/EU).

    SIL 3 in accordance with IEC 61508.

    TA-LUFT / Fugitive Emission ISO 15848.

    Top Mounting in accordance with ISO 5211, anti-ejection stem, anti-static device in accordance with BS 5146. Hydraulic and pneumatic testing in accordance with EN 12266-1, ISO 5208, API 598, API 6D.

    Sealing class in accordance with ISO 5208: grade A soic seals, grade D metal seals. Surface finish: carbon steel painting primer zinc 75 µm.

    Functionality: DBB, SPE, self-relieving.

  • MATERIAL OF THE MAIN COMPONENTS

    Body and lock: carbon and stainless steel from bar up to DN 100 (4"), forged DN higher. Ball and seats: AISI 316/316L stainless steel; F51 rod.

    Seats: metal ring with DEVLON or RPTFE (25% carbographite) soice insert. Stem, body and seat seals: VITON and graphite O-rings.

    Galvanized carbon steel lever or cast iron gear operator. Recommended temperatures: TS -29°C to +150°C.

  • OPTIONAL

    Body and Trim: nickel alloys, duplex, SSD, Titanium, other materials on request. Temperatures: suitable materials and seals down to -101°C or +500°C.

    NACE MR0175 - MR0103.

    Tie rods and nuts in various materials and special coatings. ENP coating for trim.

    Insert: TFM, PEEK, KEL-F.

    Metal seats with TCC or CCC coating.

    Body, stem and seat seals: elastomers, perfuoroelastomers, PTFE, "V" pack, Lip Seal, Spiral Wound Stem extension for insulation 100 mm.

    Low and high temperature extension, Live Loading System, double seal, bleed plug. Stainless lever, Gear operator, padlocking device.

    Automation: pneumatic or electric actuators, limit switches, solenoid valves. Special coatings.

    Features: DPE, DIB 1, DIB 2.

Consult the catalogue

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