PFG57 Rotary paddle level switch

Rotary blade level indicator used for detecting a level threshold, generally full or empty, in a silo or bin. Sturdily built thanks to its aluminium casing and small in size, it is ideal for installation in small tanks or load cells and, in accordance with the most recent ATEX standards, for use where the atmosphere is potentially explosive owing to the presence of dusts/powders.

 

Advantages

  • Easy to install: specific tools or settings are not required.
  • Extremely versatile and with an excellent quality price ratio.
  • Provides the highest standard of safety in the presence of potentially explosive dusts/powders.
  • Probe can be adapted to the material monitored thanks to the wide range of paddles available.
  • Extremely reliable, the instrument can be used in addition to radar, capacitive, ultrasound or continuous level probes as a safe signal.

 

Certifications

Certificato ATEX
ATEX

II 1/2 D Ex ta/tb IIIC T85°C IP65 Da/Db

Certificato IECEx
IECEx

Ex ta/tb IIIC T85°C Da/Db

Certificato Eurasian Conformity
Eurasian Conformity

EurAseC Conformity

Certificato UKCA
UKCA

UK Conformity.

Certificato ATEX
ATEX

II 3D Ex tc IIIB T85°C Dc

Technical Specifications

  • Casing and cover in die-cast aluminium
  • Shaft in AISI 303 / EN 1.4305 stainless steel on life-lubricated sealed bearings, with dust-tight retaining ring in NBR
  • Broad range of paddles in polyamide or AISI 304 / EN 1.4301 stainless steel
  • 1” 1/2 Gas (BSPP) process connection and 1/2 Gas (BSPP) single cable entry
  • Rotation speed 1 turn / minute
  • Ambient temperature -20° ÷ +70°C (-4° ... +158°F)
  • Process temperature -20° ÷ +70°C (-4° ... +158°F)
  • Process pressure 0.8 to 5 bar (11.6 to 72,5 psi)
  • IP65 protection rating (dust-proof, protection against water jets)
  • Power consumption max 4 W
  • Contact capacity 5A at 250V (AC)
  • Micro switch SPDT output signal

 

If the product is to be used in areas with explosive atmospheres, the following characteristics apply:

 

  • Ambient temperature -20° to +70°C (-4° ... +158°F)
  • Process temperature -20° to +70°C (-4° ... +158°F)
  • Process pressure 0.8 to 1.1 bar (11.6 to 15.9 psi)

Electrical specifications

The electrical part of the entire range of PFG05 level probes can be supplied with different voltage ratings and numerous optionals:

  • Available voltage ratings: 115/230V or 24/48V – 50 … 60Hz (AC) and 24V (DC).
  • Standard version with faston connectors.
    Paddle terminals or self-locking spring terminals are available on request.
  • 4 RPM: increased rotation speed to reduce trip time.
  • Low temperatures: enable the instrument to function down to -27°C.

Choice of paddle

An essential component that ensures the level indicator functions correctly, the paddle is the basis from which customizing starts since it can be adapted to every type of use.
To make the best choice, it is important to bear in mind the following 5 key points:

 

  1. Each material has a minimum density that must be detected by the instrument.
  2. The minimum diameter of the entry hole through which the paddle can pass if it cannot be installed inside.
  3. The diameter occupied by the paddle as it turns.
  4. The number of blades changes depending on the intensity of the disturbances to which the paddle is exposed.
  5. Polyamide or stainless steel, depending on the type of material with which the paddle comes into contact.

Related products

Small-sized level sensor with rotary paddle, made of  aluminium and stainless steel. It can be applied with G 1" 1/2 (BSPP) process connection or flange (or tri-clamp). Particularly suitable for the detection of food and corrosive materials. The range of paddles allows the level switch to detect materials with densities between 0.1 and 2.0 kg/dm3. The instrument can be customized.

Small-sized level sensor with rotary paddle, made of sturdy die-cast aluminum. It can be applied with G 1" 1/2 (BSPP) process connection or flange. It is a specific variant for plaster. The instrument can be customized with special lengths and electrical accessories.

Small-sized rotative level sensor, made of aluminum and stainless steel. It can be applied with G 1" 1/2 (BSPP) process connection or with flange. Designed for high temperature and explosion risk environments, also ideal for corrosive substances. The selection of paddles allows the level switch to detect materials with densities between 0.1 and 2.0 kg/dm3. The instrument can be customized.

Rotary paddle level switch made of durable die-cast aluminum with G 2" ½ threaded process connection or flange. A wide choice of paddles allows the level switch to detect materials with densities between 0.1 and 2.0 kg/dm3. The instrument can be customized with special lengths and electrical accessories.

Level sensor with rotary paddle, explosion-proof, suitable in environments with gaseous, explosive or flammable mixtures. It is made of aluminum, and it can be applied with G 1" ½ process connection or flange. A wide choice of paddles allows the level switch to detect materials with densities between 0.1 and 2.0 kg/dm3. The instrument can be customized.

Spare parts


Stainless steel paddles

Single blade stainless steel paddle

Find out more

4 blades stainless steel paddle

 

Find out more

Single blade stainless steel paddle

Find out more

4 blades stainless steel paddle

Find out more

4 blades stainless steel paddle

Find out more

Single blade stainless steel paddle

Find out more

Single blade stainless steel paddle

Find out more

4 cables stainless steel paddle

Find out more

2 blades stainless steel paddle

Find out more

2 blades stainless steel paddle

Find out more

4 blades stainless steel paddle

Find out more

Single blade stainless steel paddle

Find out more

Single blade stainless steel paddle

Find out more

Single blade stainless steel paddle

Find out more

Single blade stainless steel paddle

Find out more

4 blades stainless steel paddle

Find out more

4 blades stainless steel paddle

Find out more

Plastic paddles

Single blade polyamide paddle

Find out more

Triple blade polyamide paddle

Find out more

Single blade polyamide paddle

Find out more

2 blades polyamide paddle

Find out more

2 blades polyamide paddle

Find out more

1 Lathiom 52/11-08 PD02 blade.
Suitable for contact with food.

Find out more

Threaded sleeves

Iron lock nut with G 2" 1/2 thread. 

Find out more

Stainless steel sleeve with G 2" 1/2 internal thread.

Find out more

G 2" 1/2 external thread
G 1" 1/2 internal thread

Find out more

G 2" external thread
G 1" 1/2 internal thread

Find out more

Iron sleeve with G 1" 1/2 internal thread.

Find out more

Iron sleeve with G 3/4 internal thread.

Find out more

Connessione

Aluminum flange diam.140mm.
4 diam.7 holes on diam.120 mm pitch circle diameter.

Find out more

Aluminum flange diam.105mm.
4 diam.7 holes on diam.90 mm pitch circle diameter.

Find out more

LED signalling lamp
(only ATEX Zone 22 available)

Find out more

M12 connector (without mating connector).

Find out more

Prolunghe

Galvanized steel extension with protection

Find out more

Galvanized steel extension without protection

Find out more

Stainless steel extension with protection

Find out more

Stainless steel extension without protection

Find out more

Adjustable galvanized steel extension with protection

Find out more

Adjustable galvanized steel extension without protection

Find out more

Adjustable stainless steel extension without protection

Find out more

Adjustable stainless steel extension with protection

Find out more

Flexible extension in galvanized steel with adjustable coupling.

Find out more

Complete circuit and gear motor assembled for PFG57 and PFG09

Find out more

Circuit complete with limit switches for PFG57 and PFG09. 
Gear motor not present.

Find out more

Spare gear motor for PFG57 and PFG09.

  • Complete with plastic cap.
  • Without return spring.

Find out more

Cable entry protections

Standard cable entry plugs, ATEX / IECEx certified closing caps and cable glands.

Find out more