Washers & Dryers

Bitron is a leading manufacturer of a wide range of products used for the manufacture of washing machines and dryers.
Applications include water control (solenoid valves and safety systems), detergent and liquid distributors, bulk dispensing devices, water softeners, doorlocks, various types of switches and sensors (including pressure sensors) as well as a comprehensive range of electronic main control-boards and user interfaces. We are available for the development of customized solutions.

Inlet & Safety Valves

Description

Water inlet and safety valves control the water flow into an appliance. Bitron has become the leading solenoid valve supplier to the worldwide appliance market and supplies domestic, professional and industrial markets. Typical valves for washing machine are multiple outlet type. Bitron safety valves can be single or double valves in series, as well as double hose to detect hose leakages leaving the hose water pressure relieved during off time. Complex hydraulic circuits may include a motorized diverter in order to reduce the number of valves, connections between inputs and outputs, and pressure losses.

Key features:

Solenoid valve bodies: from 1 to 2 inlets and from 1 to 6 outlets
Safety valves: from 1 to 2 valves, with protective hose and nut. Electric and Pneumatic actuator
Operating pressure range: 0.02Mpa up to 1Mpa
Standard Working Temperatures: ambient max.60°C;medium 90°C;storage -30/+80°C (on request could be customized)
Power supply: DC or AC, from 12V to 380V
Flow regulator: from 0.25 L/min to 20 L/min
Electrical connections: Rast 2.5; Rast-5; fast-on 6.3x0.8 mm
All major approvals
Sensors: flow, temperature

Door locks

Description

Several standard and customized product families are available for washing machine and dryer door locking and latching applications. Electrical box may be PTC delayed, with or without ambient temperature compensation or instantaneous operated by solenoid actuator with safe mechanism against input failure or motorized doorlocks. Solutions for Pull to open, Push to open or door with handle are available in our portfolio.

Key features:

Rated voltage from 12V DC to 120/250 V AC
Further solutions can be developed in co-design with the customer
Mechanical Interface with appliance is customized according to customer request

Detergent dispensers and pumps

Description

Bulk dispensing of liquid detergent and fabric conditioner. Peristaltic pumps with lifelong high-precision flow rate. Optimized consumption and washing performance. Customized systems with level sensors and electronic control for automatic dispensing

Key features:

Flow rate: from 27 cc/min to 100 cc/min
Lifetime maintenance-free self priming pumps
No check valve required
Flow rate is independent from voltage fluctuations and liquid viscosity
Voltage supply: mains voltage and low voltage
Level indication: by optical sensor
Detergent capacity: approx. > 1000 cc
Fabric conditioner capacity: approx. > 700 cc

Water Softeners

Key features:

Ion exchange resin softens the water used in wash and rinse cycles
Improves color brightness and fabric life
Minimizes detergent and energy consumptions due to water hardness
Resins regeneration made by salt
Sensors for water flow and water hardness (options)

Pressure sensors

Description

The Analogue Pressure Sensor is an inductive sensor (LVDT) that measures precisely the pressure and allows the control of the water level inside the washing machine or dishwasher. The “in circuit” calibration gives a customized output characteristic. No software is needed in the main circuit, a hardware internal control (Periodic Self-Test) of the device ensures that the sensor is equivalent to a class B.

Key features:

Power supply 5V+/-05
Resolution 0.3 mmH2O (3Pa)
Negative pressure measurement possible
Calibration: calibrated in five points all over the range
Pressure ranges: from 0-200mm H2O (0-2000Pa) to 0-600 mm H2O (0-6000Pa)
Frequency output is independent from the supply voltage; ranges from 26kHz to 10Hz
Voltage output available

Switches and other sensors

Description

Bitron produces a wide range of switches and sensors for washing machines and dryers. Special sensors can be developed according to customer requirements.

Key features:

Microswitches: high & low activation force (ie. from 10g to 400g)
Floaters for safety valves & other applications
Pressure switches for high & low pressures

Sensors, several types are available for:

Position detections: on different conditions and applications
Water parameters such as: flow, pressure, level, temperature, conductivity, turbidity, hardness