Cryogenic Flow Diverter Valves CJB40TA5AAT1T

The Parker Bestobell cryogenic flow diverter is a quarter turn ball or globe valve design allowing for fast changeover between relief valves.

It is essential that a cryogenic liquid storage vessel is always protected by a relief valve. If only one relief valve was fitted to the vessel it would be impossible to disconnect for routine maintenance or checking of lifting pressures without prejudicing the safety of the vessel. For this reason, all cryogenic storage tanks require two relief valves to be connected to the tank via a flow diverter valve. This allows one relief valve to remain connected to the vessel while the other undergoes maintenance.
The flow diverter valve is usually at the hub of a fairly complex piping system and many variations on the basic design have evolved to suit customers’ specific requirements.

Markets:
• Industrial Gas

Flow Diverter Ball Valve
The Parker Bestobell flow diverter ball valve comprises three main components: the centre body incorporating the inlet port, ball and operating lever and the two end adaptors, which include the various outlet ports.
The Flow Diverter Ball Valve is designed for ease of installation, as the position of the entry port helps the system designer to fit it into the correct place. With the bottom entry valve, the inlet port is on the opposite side of the centre body from the opening lever. The front entry valve has the inlet port on the face at 90° to the operating lever.
All valves are degreased for oxygen duty, assembled in clean room conditions and pressure tested prior to dispatch.

Features / Benefits - Flow Diverter Ball Valve:
• Anti blow-out stem
• Porting indications on handle
• Handle designed to prevent attachment to valve in wrong position
• Ball machined to prevent incorrect assembly
• Drilled and tapped mounting bosses to allow rigid mounting
• Three position “T”-port offering the possibility to have both relief valves connected to the storage vessel (or mobile tanker) at any one time. This enables the discharge of higher volumes of gas, which in turn allows faster filling or quicker tank turnaround. It also ensures that the flow capacity of the valve is not reduced below that available from one fully open port even during movement of the operating lever from one position to another. The integrity of the vessel is not threatened, even if the operator inadvertently leaves the operating lever mid-position.
• Designed and engineered for use with Group 1 gases
• Designed and manufactured in accordance with ASTM B31.1, BS EN 1626 and BS ISO 21011
• Optional full material traceability backed by BS EN 10204 3.1/3.2 certification
• Marked according to the Pressure Equipment Directive

Flow Diverter Globe Valve
The Parker Bestobell flow diverter globe valve features two internal seats which allow one relief valve, or both relief valves to be live, depending on the position of the disc.

Features / Benefits - Flow Diverter Globe Valve:
• PTFE seal to ensure tight shut-off at all times
• Fast/easy maintenance of PTFE components
• Long life, low torque stem thread
• Anti-blowout stem and one-piece high strength design for operator safety
• Long life spring loaded gland packing
• Lightweight ergonomic aluminium hand wheel
• Designed and engineered for use with Group 1 gases
• Designed and manufactured in accordance with ASTM B31.1, BS EN 1626 and BS ISO 21011
• Optional full material traceability backed by BS EN 10204 3.1/3.2 certification
• Marked according to the Pressure Equipment Directive

Applications:
• Transport
• Storage
• Defence
• Processing

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