TOP ENTRY BALL VALVE
FOR CRYOGENIC APPLICATIONS

Top-entry

TOP ENTRY BALL VALVE
FOR CRYOGENIC APPLICATIONS

Our Top-Entry Valve can be designed with either floating or trunnion mounted balls.

Due to the stem extension and the chosen seat rings, the ball valve can be used for cryogenic temperatures down to -196°C.

The special seat ring design tolerates the Bi-directional application up to full differential pressure.

FEATURES AND BENEFITS

Assembled Top
Entry Ball Valve

Low Emission
Packing Design

Easy assembling /
disassembling of Ball / Seat unit

2-way ball valves mounted version

The mounted 2-way ball valves are designed with a 2- or 3-part body. Spring-loaded seat rings are used for sealing.

Due to the absorption of the forces via the bearing journal and the control shaft, the bearing-mounted ball valve not only has lower torques compared to the floating versions, but can also be used for large nominal sizes and pressure ratings. As standard, these are sealing on the inlet side and can also be supplied as “Double Block and Bleed (DBB)” or “Double Isolation and Bleed (DIB)” versions on request.

Technical data

Advantages

  • Easy assembly / disasembly
  • Bi-Directional
  • Cryogenic test at Perrin
  • Pressure relieved seating system
  • Spring loaded packing
  • Blow-out proof
  • On-site maintenance (in the plant)
  • ISO standard actuator connection

Certification

  • Fire Safe according to ISO 10497 / API 607
  • Fugitive emission according to ISO 15848-1
Technical features
Design -ball valve type 64-K, 66-K oder 67-K
 Flange connection Welding ends, flange or according to customer requirements
Size To NPS 16“ / DN 400
PN Class 1500 / PN 250
Seating system Soft sealing
Temperature range -196°C to + 100°C
Actuation Manual (lever/gearbox), pneumatic / electric / hydraulic drive
Material
Case DIN 1.4409 / CF3M
Ball DIN 1.4409 / 1.4408 / A 351 CF3M / CF8M
Seat rings PCTFE
Seal Graphite
Pack Graphite