Trunnion Ball Valves Top Entry

Special valve constructions to allow easy on-site maintenance and disassembly with quick access to ball and seats for inspection and repair.


GENERAL CONSTRUCTION

Top Entry valves are suitable for compression and re-injection systems, transmission pipelines, metering skids, Pig-launchers and receiving stations, Off- Shore and On-Shore platforms, gas storage and separations systems suitable for a wide range of high risk industry applications from severe abrasive and slurry to high temperature and cryogenic services, from subsea and LNG plants to topside installations. ERREESSE Top Entry valves can be welded directly onto the pipeline or to the manifold.


MATERIALS OF CONSTRUCTION

  • Low Temperature and Low Alloy Carbon Steel
  • Stainless steel, Duplex and Super Duplex
  • Nickel alloys
  • Titanium
  • Bronze

STANDARD FEATURES

ConstructionOne piece bolted bonnet
PortReduced bore, full bore or fully piggable
Stem retentionAnti blow-out stem
Leakage rateISO 5208 rate A soft seated, rate B,C, D metal seated
Antistatic deviceIncluded, the ball valve design includes an electric conductive connection between the internal parts of the ball valve and the body, providing the anti-static function.
Pressure reliefAutomatic cavity relief to prevent overpressure in body cavity (self-relieving seats)
SealingBi-directional, Double block & bleed (DBB) with sealing in both directions (DIB-1&2 upon request) Metal seated with Tungsten or Chrome Carbide coatings Primary metal secondary soft (PMSS) with differential hardness between the ball and seat to prevent galling of the substrate Soft seated with thermoplastic polymers (Nylon, PEEK, PCTFE), special polymers upon request Elastomers FKM, HNBR, EPDM O-Rings, special elastomers upon request
DrainDrilled and threaded connections for all sizes
VentDrilled and threaded vent connections for sizes = DN150 (6″) < DN150 upon request
Stem grease injectorsIncluded for all sizes
Seat grease injectorsIncluded for sizes = DN150 (6″), < DN150 upon request
Lifting pointsIncluded for sizes = DN150 (6″) or on valves of 250 kg min
Support feetIncluded for sizes = DN150 (6″) or on valves of 250 kg min
Stem extensionNot foreseen for this model
Valve operationLever, Gear box or Actuator with position indicator and locking device
Material testingPressure containing & controlling parts to EN 10204 3.1 Materials in Sour Service according to NACE MR0175, MR0103, ISO 15156 Non-destructive testing (NDT) to API 6D, ASME B16.34
Valve testingHydrostatic & pneumatic testing to API 6D, ASME B16.34, ISO 5208 (other upon request)

TECHNICAL DATA

DesignAPI 6D, API 6DSS, API 6A, ASME B16.34, ISO 14313, ISO 10423, ISO 17292
Design pressureASME B16.34, EN 1092-1, ISO 17292
Body wall thicknessASME B16.34, ASME VIII Div. I, ISO 17292
Face to FaceAPI 6D, ASME B16.10 Long pattern
Temperature range-50° to 200°C (-58° to 392°F)
Pressures rangePN20 (ANSI 150) to PN420 (ANSI 2500)
Size rangeDN15 (1/2″) to DN1400 (56″)
End connectionsASME B16.5 = DN600 (24″) Flanged RF,FF,RTJ MSS-SP-44 = DN550 (22″) Flanged RF,FF,RTJ ASME B16.47 A = DN650 (26″) Flanged RF,FF,RTJ ASME B16.25 Butt-Weld BW Clump (HUB)

APPROVALS

Safety Integrity LevelSIL 3
Fire SafeAPI 607, API 6FA, BS 6755, ISO 10497-5
Area ClassificationATEX 94/9/EC
Pressure Equipment DirectivePED 97/23/EC
Fugitive EmissionISO 15848/1
ConstructionAPI 6D, API 6DSS

Get In Touch

Drop Us A Message

    [recaptcha class:custom_captcha]

    Our Contact Details

    • MV Nederland BV / Maverick Valves Manufacturing HQ BV

      Kalundborg 10 5026 SE Tilburg The Netherlands
    • info@maverickvalves.com
    • +31 (0) 13 303 3600