Thermostatic valves
Thermostatic valves are used in hospitals, clinics, food industry, homes and factories. They are also sometimes called safety valves. A thermostatic valve mixes hot water from a geyser (usually at temperatures (± 70°C) with cold water providing the user with warm water below scalding temperature. Water temperatures above 55°C will cause severe scalding/burning and can kill a person.
Model 0705 15mm thermostatic mixing valve
LA low pressure low volume thermostatic valve, ideal for hand wash basins and single showers.
Features
- For use with high and low pressure systems with water pressures ranging between 20-600kPa
- Can be adjusted from 35°C to 55°C.
- Inlet hot water supply 65-90°C
- Maximum flow rate 10 l/min.
- Use balanced water pressure. In unbalanced conditions install non-return valves.
- Made from DZR brass. Can be used in hospitals, clinics and mortuaries.
- 1 Year warranty for manufacturing defects. Does not include installation.
Thermostatic-Mixing-Valve 15mm DZR brass The thermostatic valve can be installed before the inlet of the slab sink to supply comfortable warm water without the risk of burning.
Rada Maynell 15/3 Thermostatic valve
Temperature
- Minimum temperature differential between hot and outlet temperature: 10°C
- Optimum temperature control range: 35 – 45°C
- Maximum hot water temperature: 85°C (for safety, a recommended hot water storage temperature maintained below 85°C and for ablution installations at between 60 to 65°C).
Flow Control
- The Meynell 15/3 does not have an integral flow control.
- Separate outlet flow control such as a tap, mechanical timed flow control device or solenoid is required.
- The device chosen should be non- concussive in operation.
Connections
- Inlet and outlet connectors are 15 mm compression
- Hot (H) and Cold (C) inlets are clearly marked and must be connected this way.
- The inlet connections have integral strainer and check valve units.
Pressures
- Minimum operating pressure: 0.1 bar.
- Maximum static pressure: 10 bar.
- Maximum pressure loss ratio*: 10:1 (in favour of either supply).
- Maximum hot water supply temperature: 85°C.
- Maximum cold water supply temperature: 25°C.
- Note! Both hot and cold pressure should be nominally equal.
The thermostatic valve can be installed before the inlet of a basin, scrub or slab sink to supply comfortable warm water without the risk of burning.
Rada 320-F thermostatic mixing valve
The Rada 320-F is a high volume thermostatic mixing valve. Connection is via two 20mm BSP female threads with built in strainers. The outlet is also 20mm BSP female. The Rada 320-F is suitable for hose down stations, prison and hostel shower rooms. The unit is chrome plated and made from DZR brass which is a requirement for all South African hospitals.
The temperature control knob allows the user to select the required
temperature within the range available. An integral temperature stop
limits the maximum temperature to a preset level and can only be
reset by an authorised person (alternatively, the temperature knob
can be locked in position after the desired temperature has been
selected).
Pressures/Flow Rates
- Minimum dynamic supply pressure: 0.15 bar. Maximum dynamic supply pressure: 5 bar.
- Minimum flow rate: 6 l/min at mid blend.
- Maximum flow rate: 120 l/min at mid blend (which equates to a maximum pressure loss of 1.8 bar).
- Maximum pressure loss ratio*: 10:1 (in favour of either supply). Maximum static pressure: 10 bar.
- Note! Both hot and cold pressure should be nominally equal.
Temperature Range
- Factory pre-set maximum outlet temperature: 45°C.
- Minimum temperature differential, blend to either supply: 12°C. Optimum thermostatic control range: 30 °C – 50 °C.
- Minimum cold water temperature: 1°C.
- Maximum hot water temperature: 85 °C.
- Note! The mixing valve can accept temporary temperature excursions above 85°C without damage, however, operation of the mixing valve at such elevated temperatures is not recommended. For reasons of general safety, hot water storage supply temperatures should ideally be maintained at between 60°C – 65°C where serving ablutionary applications.
Mechanical hot and cold mixer
The EL-X60 is a small single basin mechanical hot and cold water mixer. It does not regulate the temperature as the GR-THERM or W-15/3. The mixing rate depends on the pressure and flow rate of the hot and cold inlets. This means you will have to regulate and set the flow rate and pressure manually in order to obtain the correct final outlet temperature. The mixing rate can also be adjusted on the device.
Hot & cold water mechanical mixer. The unit does not control the temperature dynamically.
Rada 215-T3 BC Thermostatic mixing valve for baby baths
The Rada 215-T3 BC is specifically designed for baby baths in clinics and hospitals. The unit should be connected to a hand shower or trigger hand shower. ½” thermostatic mixing valve incorporating Radatherm service-free cartridge, check valves and strainers. Housed within swivel elbows, featuring 15 mm compression connectors, which can be converted to ½” BSP union if required. Standard connections are hot (left), cold (right), top outlet. DZR brass nickel plated.
Pressures/Flow Rates
- Minimum dynamic supply pressure: 0.15 bar. Maximum dynamic supply pressure: 5 bar.
- Minimum flow rate:3 l/min at mid blend.
- Maximum flow rate: 35 l/min at mid blend (which equates to a maximum pressure loss of 1.8 bar).
- Maximum pressure loss ratio*: 10:1 (in favour of either supply). Maximum static pressure: 10 bar.
- Note! Both hot and cold pressure should be nominally equal.
Temperature Range
- Factory pre-set maximum outlet temperature: 43°C.
- Minimum temperature differential, blend to either supply: 12°C. Optimum thermostatic control range: 30 °C – 50 °C.
- Minimum cold water temperature: 1°C.
- Maximum hot water temperature: 85 °C.
- Note! The mixing valve can accept temporary temperature excursions above 85°C without damage, however, operation of the mixing valve at such elevated temperatures is not recommended. For reasons of general safety, hot water storage supply temperatures should ideally be maintained at between 60°C – 65°C where serving ablutionary applications.
Protecting the thermostatic valves from dirt and high pressures.
Inline 15mm strainer to keep dirt out of valves. Included in C-BFV
Pressure regulator with easy adjustable button. No tools required for adjustment.