Maximum pressure limiter (FD)


Pressure limiters of the FD series are constructed in accordance with the special directives for liquid gas engineering. All parts coming into contact with the medium are made of stainless steel 1.4104 and 1.4571. The pressure sensor was designed to be “self-monitoring”, i. e. should the measuring bellows rupture, the pressure sensor switches off towards the safe side. The pressure sensor thus complies with “of special construction” in the sense of VdTÜV Memorandum “Pressure 100”. Pressure limiters are used in intrinsically safe control circuits (Ex-protection Ex-i). By using an isolating amplifier, the control circuit is also monitored for line break and short circuit.

Datasheet
User Manual

Maximum pressure limiter for liquid gas systems with safety function, degree of protection Ex-i (only together with isolating switching amplifier).

 

Kind of pressure overpressure, relative
Pressure connection external thread G1/2
Electrical connection terminal connection M16x1,5
Protection class IP65
Housing material rugged housing of seawater resistant aluminium die casting GD Al Si 12
Media temp. -25 … 60 oC
Media temp. limit temperatures up to 60 oC are allowable for short periods. Higher temperatures are possible, provided that the limit is safeguarded by suitable measures (e.g. water tube trap, see Accessories for Pressure Switches / Transmitters)
Ambient temperature -25 … 60 oC
Ambient temp. limit at temperatures below 0 oC, ensure that no water condensation can arise in the sensor and in the switching device
Switch function/capacity SPDT Microswitch with resistor combination for circuit- break and short-circuit
Certificates
ID 0000033127 according VdTUEV Memorandum Pressure 100/1, Issue 07.2006 and DIN EN 12952-11, Issue 09.2007 and DIN EN 12953-9, Issue 09.2007
01 202 931-B-11-0002 according Directive 97/23/EC
SIL2 according IEC 61508-2
Pressure adjustment range 3 … 16 bar
Max. pressure 40 bar
Sensing element material 1.4104 + 1.4571
Additional description Products only may be used in conjunction with isolating switching amplifier.

 

Switching differential Pressure interlock/Reset Type
bar
0.5 maximum press./electrical FD16-326
2.5 maximum press./button FD16-327
Description Additional Product Type
Syphon for high temperature, steel, U-shape (for more accessories, see Accessories for Pressure Switches / Transmitters) U430B  








Technical advice: 03303 / 50 40 66

Technical advice for this product


    In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.



    Maximum pressure limiter (FD)

    Pressure limiters of the FD series are constructed in accordance with the special directives for liquid gas engineering. All parts coming into contact with the medium are made of stainless steel 1.4104 and 1.4571. The pressure sensor was designed to be “self-monitoring”, i. e. should the measuring bellows rupture, the pressure sensor switches off towards the safe side. The pressure sensor thus complies with “of special construction” in the sense of VdTÜV Memorandum “Pressure 100”. Pressure limiters are used in intrinsically safe control circuits (Ex-protection Ex-i). By using an isolating amplifier, the control circuit is also monitored for line break and short circuit.

    Datasheet
    User Manual

    Maximum pressure limiter for liquid gas systems with safety function, degree of protection Ex-i (only together with isolating switching amplifier).

     

    Kind of pressure overpressure, relative
    Pressure connection external thread G1/2
    Electrical connection terminal connection M16x1,5
    Protection class IP65
    Housing material rugged housing of seawater resistant aluminium die casting GD Al Si 12
    Media temp. -25 … 60 oC
    Media temp. limit temperatures up to 60 oC are allowable for short periods. Higher temperatures are possible, provided that the limit is safeguarded by suitable measures (e.g. water tube trap, see Accessories for Pressure Switches / Transmitters)
    Ambient temperature -25 … 60 oC
    Ambient temp. limit at temperatures below 0 oC, ensure that no water condensation can arise in the sensor and in the switching device
    Switch function/capacity SPDT Microswitch with resistor combination for circuit- break and short-circuit
    Certificates
    ID 0000033127 according VdTUEV Memorandum Pressure 100/1, Issue 07.2006 and DIN EN 12952-11, Issue 09.2007 and DIN EN 12953-9, Issue 09.2007
    01 202 931-B-11-0002 according Directive 97/23/EC
    SIL2 according IEC 61508-2
    Pressure adjustment range 3 … 16 bar
    Max. pressure 40 bar
    Sensing element material 1.4104 + 1.4571
    Additional description Products only may be used in conjunction with isolating switching amplifier.

     

    Switching differential Pressure interlock/Reset Type
    bar
    0.5 maximum press./electrical FD16-326
    2.5 maximum press./button FD16-327
    Description Additional Product Type
    Syphon for high temperature, steel, U-shape (for more accessories, see Accessories for Pressure Switches / Transmitters) U430B  








    Technical advice: 03303 / 50 40 66

    Technical advice for this product


      In accordance with the General Data Protection Regulation (GDPR), we are obliged to inform you about the collection of data. We meet this obligation by referring to our privacy notice.



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