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Flowserve Worcester has been supplying valves for cryogenic applications for more than 30 years including commercial, food, over-the-road tanking and aerospace applications. Flowserve Worcester has the quality solution for tough applications in all types of cryogens; oxygen, hydrogen, methane, ammonia, nitrogen, LNG, fluorine and more.

Our complete line of cryogenic valves incorporates superior technology and design. This means manual or automated control of cryogenic fluids with no contamination, no fluid degradation, and no waste while assuring safety to property, the environment and most of all, human life.

Design

The technology and design for Worcester cryogenic valves include:

• Positive ball cavity relief to prevent dangerous overpressure due to thermal expansion.
• Pressure safe stem assembled inside the body for blowout prevention and matched to the ball for positive flow direction indication.
• Zero leak packing incorporating bellville spring live loaded graphite packing assures zero leakage and high cycle life.
• Effective bonnet extension conforms to industry standards for wall thickness and lengths reducing heat transfer and frost free packing.
• High performance/low thermal stress design of valve parts assure tight shutoff,zero body leakage and low torque through large thermal excursions from ambient to -425F.
• Fire safety design with the Series 94 stem seal design utilizing double graphite seals for fire tight operation. This is especially effective in hydrogen and LNG systems.
• Worcester’s characterized metal-seated control valves for cryogenic modulating service offer many advantages over traditional globe valves for demanding cryogenic applications. 
• Rotary Concept Eliminates expensive high-maintenance stuffing box design of rising stem globe valves.
• Eliminates the unbalanced, heavy actuators of extended bonnet globe valves. 
• Reduces the size of the control valve package by one third.

Characterized Seats offer:

• High accuracy
• High rangeability
• Class VI shutoff or better
• Modified characteristics for better control
• Smaller valve sizes than conventional globe valves

Features

• Expert design and years of field experience assure the best performance
• Quarter turn high flow capacity ball valve
• Manual and automated performance
• Throttling control with CPT seat design
• High quality clean room assembly and testing.
• Multiple sizes and end connections up to 6

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