FF81P – FF91P

Liquid flow switch with plastic paddle and casing

• 

FF81P – FF91P FOR MORE INFO

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

• DESCRIPTION
  0

  Flow switches are used to signal, control, and regulate the flow in a pipe. They are commonly applied for pump control, burner activation, compressor management, alarm signaling, and motorized valve operation.

  General features

  Type FF81P

  • Shock-proof thermoplastic case with self-retaining screws.
  • Threaded brass connection: G1.
  • Nylon cable gland: G 3/8.
  • Non-toxic thermoplastic resin paddle: Starting from G4, with cutting references for G1, G2, G3.
  • Electrical connections: Faston 6.3 (included).
  • Adjustment screw for setting the intervention point.
  • Unit weight: 0.36 kg.

  Type FF91P:

  • Shock-proof thermoplastic case with self-retaining screws.
  • Threaded brass connection: G ½.
  • Nylon cable gland: G 3/8.
  • Non-toxic thermoplastic resin paddle: Starting from G2, with cutting references for G 1/2, G1, G 1+1/2, G2.
  • Electrical connections: Faston 6.3 (included).
  • Adjustment screw for setting the intervention point.
  • Unit weight: 0.25 kg.

  Electric features

  • Rated insulation voltage Ui 380V~
  • Continuous duty rated current Ith 10A
• ADVANTAGES
  0

  Flow switches are used to signal, control, and regulate the flow in a pipe. They are commonly applied for pump control, burner activation, compressor management, alarm signaling, and motorized valve operation.

  Advantages
• TECHNICAL SPECIFICATION

  * For drinking water control, a maximum of 85°C is recommended.

  CODE	PIPE DIAMETER	MINIMUM CALIBRATION VALUE (dm³/sec) WITH FLOW INCREASING	MINIMUM CALIBRATION VALUE (dm³/sec) WITH FLOW DECREASING	MAXIMUM CALIBRATION VALUE (dm³/sec) WITH FLOW INCREASING	MAXIMUM CALIBRATION VALUE (dm³/sec) WITH FLOW DECREASING	MALE CONNECTION	MAXIMUM PRESSURE OPERATING	OPERATING TEMPERATURE *	PROTECTION DEGREE	UNIT WEIGHT KG
  FF81P	G 1	0.26	0.16	0.58	0.53	G1	10 bar	0 ÷ 100 °C	IP54	0.36
  	G 2	0.87	0.65	1.65	1.74	G1	10 bar	0 ÷ 100 °C	IP54	0.36
  	G 3	1.85	1.3	3.49	3.27	G1	10 bar	0 ÷ 100 °C	IP54	0.36
  	G 4	2.39	1.85	5.56	5.23	G1	10 bar	0 ÷ 100 °C	IP54	0.36
  FF91P	G 1/2	0.13	0.08	0.29	0.26	G1/2	10 bar	0 ÷ 100 °C	IP54	0.25
  	G 1	0.26	0.16	0.58	0.53	G1/2	10 bar	0 ÷ 100 °C	IP54	0.25
  	G 1 1/2	0.39	0.24	0.87	0.79	G1/2	10 bar	0 ÷ 100 °C	IP54	0.25
  	G 2	0.8	0.6	1.7	1.6	G1/2	10 bar	0 ÷ 100 °C	IP54	0.25

• HOMOLOGATION AND INSTALLATION
  Homologation

  • Complies with CEI EN 60947-5-1 standards

  Installation and use

  The flow switch must be installed on horizontal pipe sections, positioned away from valves, elbows, drains, or any areas with irregular flow patterns.

  A flexible paddle, activated by the flow of liquid, engages the operating lever of a SPDT switching microswitch, triggering the following actions:
  When the flow increases: the C-NC contact opens and the C-NO contact closes.
  When the flow decreases: the C-NC contact closes and the C-NO contact opens.

• TECHNICAL LITERATURE
  • FF81P-FF91P technical data sheet
  • Conformity EU declaration
• FAQS