Product Description

FD16-326 Fema Maximum pressure limiter (FD)

Maximum pressure limiter for liquid gas systems with safety function, degree of protection Ex-ia (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…60C
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…60C
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
Products only may be used in conjunction with isolating switching amplifier.
Pressure adjustment range: 3…16bar
Max. pressure: 40bar
Sensing element material: 1.4104 + 1.4571

Switching differential: 0,5bar
Pressure interlock/Reset: maximum press./electrical