Crosby JBS-E

The Crosby™ SIL 3 pneumatic actuated pressure relief valve is a high performance instrumented solution providing on demand actuation as part of a Safety Instrumented System (SIS) or Controlled Safety Pressure Relief System (CSPRS) reducing the need for emergency blowdown valves, associated piping and additional construction cost.

In addition, the Crosby JBS-E PRV provides standard pressure relief valve protection of the system in the event of an overpressure condition.

Crosby JBS-E Series SIL 3 capable pneumatic actuated relief valve

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Henna Ketoja
Inside Sales Engineer
Mob. 400 612 124

Henna.Ketoja@askalon.fi

Aleksei Seleznev
Inside Sales Engineer
Phone. 040 530 2017

Aleksei.Seleznev@askalon.fi

Tommi Penttilä
Sales Manager Conventional Power
Phone. 0207 416 208

Tommi.Penttila@askalon.fi

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Sizes	1" D 2" to 12" W 16" 25 D 50 to 200 T 250 (EN Type)
Orifices	0.110 to 60.75 in2 [71 to 39.193 mm2]
Inlet ratings	ANSI Classes 150, 300, 600, 900, 1500, 2500 EN Classes PN 10, PN 16, PN 25, PN40
Temperature range	-450°F to 1000°F [-268°C to 538°C]
Set pressure	25 to 6000 psig [1.75 to 413.79 barg)
Operating pressure	Maximum allowable: 120 psig [8.3 bar] Minimum recommended: 13 psig [0.9 bar]
Operating temperature limits	Standard construction (Viton® O-rings): -15°F to 400°F [-26°C to 204°C] other materials on request
Pressure connection	½ NPT internal (standard) for instrument air. (consult factory for other connections)
Sizing	Actuators are sized according to valve selection

Standard direct spring operated pressure
relief valve which can be opened on demand
Pneumatically operated actuator controlled by pressure, temperature or other remotely sensed process variable
Direct inline loading of valve spindle without the use of levers or cams
Capable of fully lifting the relief valve independent of process pressure at valve inlet
Remote valve lift indication
Operation with standard air supply
Rugged actuator construction utilizing Stainless materials
Available with a wide variety of monitoring options including TopWorx™ GO™ Switchs and Fisher™ position transmitters
• Certified as a total final element solution for
SIS – SIL 3 Capable per IEC 61508

Brands

Crosby JBS-E

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