FF82

Liquid flow switches for liquids with plastic casing and stainless steel paddle

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FF82 FOR MORE INFO

• DESCRIPTION
• TECHNICAL SPECIFICATION
• HOMOLOGATION AND INSTALLATION
• TECHNICAL LITERATURE

• DESCRIPTION
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  FF82 flow switch controls the liquid flow in piping for cooling and heating systems.

  General features

  • Working temperature -20 ÷ 110°C.
  • Ambient temperature 50°C.
  • Max pressure 10 bar.
  • Blade in stainless steel AISI 301 for pipes from G1” to G8”.
  • G1” connection.
  • Sealed cable glande PG16.
  • Flow rates see TECHNICAL SPECIFICATION.
  • Female 6,3 mm electrical connection.
  • Ground connection.
  • Protection degree IP65.
  • Antishock thermoplastic material casing.

  Electric features

  • SPDT microswitch, dustproof, compliant with UL cUL CSA ENEC
  • Rated insulation voltage   Ui 380V~
  • Continuous duty rated current  Ith 10A
• ADVANTAGES
  0

  FF82 flow switch controls the liquid flow in piping for cooling and heating systems.

  Advantages
• TECHNICAL SPECIFICATION

  CODE	PIPE DIAMETER	BLADE LENGHT mm	MINIMUM CALIBRATION VALUE (m³/h) WITH FLOW INCREASING	MINIMUM CALIBRATION VALUE (m³/h) WITH FLOW DECREASING	MAXIMUM CALIBRATION VALUE (m³/h) WITH FLOW INCREASING	MAXIMUM CALIBRATION VALUE (m³/h) WITH FLOW DECREASING
  FF82	G 1	35	1	0.5	2	1.9
  	G 1 1/4	35	1.2	0.7	2.9	2.7
  	G 1 1/2	58	1.6	1	3.9	3.6
  	G 2	58	2.9	2.1	6.1	5.7
  	G 2 1/2	89	4	2.7	7	6.5
  	G 3	89	6.1	4.3	11.4	10.7
  	G 4	89	14.7	11.3	28.9	27.6
  	*	167	7.9	6.1	18.4	17.3
  	G 5	89	28.3	22.8	55.5	53
  	*	167	12.8	9.2	26.7	25
  	G 6	89	43	35.8	85	81.6
  	*	167	16.8	12.2	32.5	30.5
  	G 8	89	85	72.4	172.3	165.5
  	*	167	46.4	38.5	94	90.7
  	* These values are obtained adding the longest paddle

• HOMOLOGATION AND INSTALLATION
  Homologation

  • Complies with EN 60947-5-1.

  Installation and use

  • FF82 flow switch has to be installed on horizontal pipe sections, far from valves, pipe elbows, outlets or irregular flows.

  • A flexible paddle, urged by the flow, operates on the actuation lever of a SPDT micro switch.
  • In heating systems with closed expansion duct where the circulation is assured by electro pumps, the heat input has to be automatically interrupted in case the circulation pumps are stopped.
  • When the flow is rising: it opens the C-NC contact and closes the C-NO contact.
  • When the flow is dropping: it closes the C-NC contact and opens the C-NO contact.
• TECHNICAL LITERATURE
  • FF82 EN technical data sheet
  • FF82 EN instructions
  • Conformity EU declaration
  • FF82 FR feuille d'instruction
  • FF82 ES hoja de instrucciones
  • FF82 DE Gebrauchsanweisungen
  • C
• FAQS