Space saving design
Prefabricated unit
Easy to install
Shunt unit for conventional and district cooling systems
TTM Shuntopac® 20-50 K is a shunt unit for conventional and district cooling systems and is available as standard with connection dimensions from DN 20 to DN 50. The shunt unit can be equipped with several components of any make and a number of different coupling alternatives.
TTM Shuntopac® 20-50 K comes with a fire and corrosion-proof casing made of polyester-covered aluminium sheet. The insulation is AF/Armaflex AF-2 as standard. Other thicknesses can be delivered on request. The hanging brackets consists of yellow chromated flat bars.
As standard, the pipe mixing loop consists of fully welded pressure vessel pipes SS-EN 10216-2 and DIN 2391, anticorrosive painted with grey primer. Pipe mixing loops in other qualities or with other surface treatments can be delivered to order. The design of the pipe mixing loop works as a barrier against undesired cooling transmission due to double circulation.
TTM Shuntopac® 20-50 K is CE marked in accordance with manufacturer’s declaration 2B according to the Machinery Directive.
The shunt unit is environmentally assessed.
Equipment
1. Control valve
Seat valve with threaded connection in a choice of make and type. The valve is installed in a flange joint to facilitate servicing and replacement.
2. Adjusting valves
2 pcs of optional manufacture and dimension.
Fitted to the pipe mixing loop with conical coupling. TA STAD is delivered as standard. Also available with dynamic balancing valve, flow regulators or difference pressure regulators.
3. Shut-off valves
2 pcs ball valves with full flow and high spindle neck. Fitted to the pipe mixing loop with conical coupling.
4. Test sockets
Type TA STAD are attached on each connection.
5. Pump
Optional manufacturer and type with “wet” or “dry” motor.
6. Drainage
Design with screwed hose joint R 1/2”.
7. Non-return valve
1 pc. made of brass/stainless steel, with spring-loaded cone. Fitted into a flanged joint.
8. Thermometers
4 pcs graduated -40 – +40 °C. Mounted in thermowells.
Special design
- Pipe mixing loop made of e.g., copper or stainless steel of the desired quality.
- Anti-corrosive painted pipe mixing loop, e.g. epoxy enamelled.
Options
- Floor stand
- Flexfit pipe bends
TTM Shuntopac® 20-50 K mounting options
Configuration 01 K and 09 K
Configuration 02 K and 10 K
Pipe bends (optional) provide more installation options, for example:
TTM Shuntopac ® 20-50 K differential pressure measurement
All outside valves on the TTM Shuntopac® 20-50 K are provided with test sockets, allowing complete differential pressure measurement.
B – A Measuring of the pressure difference over the adjusting valve on the primary side. Primary flow can be determined with the help of data for the adjusting valve.
C – A Available pressure difference on primary side.
G – H Pressure rise over the circulation pump.
H – D Pressure drop in connected object on secondary side.
D – E Measuring of the pressure difference over the adjusting valve on the secondary side.
Secondary flow can be determined with the help of data for the adjusting valve.
E – B Pressure drop over the control valve.
Dimensions TTM Shuntopac® 20-50 K
| Connection DN | 20 | 25 | 32 | 40 | 50 |
|---|---|---|---|---|---|
| A | 660 | 660 | 660 | 660 | 745 |
| B | 745 | 745 | 745 | 745 | 800 |
| C | 200 | 200 | 200 | 200 | 215 |
| D | 360 | 360 | 360 | 360 | 430 |
| E | <175 | <190 | <200 | <205 | <235 |
| F | 97 | 97 | 97 | 97 | 107 |
| G | 70 | 70 | 70 | 70 | 70 |
| H | 175 | 175 | 175 | 175 | 215 |
| Weight, approx. kg | 32 | 37 | 52 | 57 | 62 |
Max. pressure: 1,0 MPa
Temp. range: -20 – +110 °C
Specified dimensions are valid for the standard version. Some variations may occur if alternative equipment is used.
TTM Shuntopac® 20-50 K / 01 K and 09 K
TTM Shuntopac® 20-50 K
Constant flow on primary and secondary side.
The control valve is mounted as mixing valve in the return pipe on the primary side.
01 K
02 K
Variable flow on the primary side, constant on secondary side.
The control valve is fitted in the return pipe.
09 K
10 K
Variable flow on the primary side, constant on secondary side.
The control valve is fitted in the return pipe.
09 R1 K
10 R1 K
Variable flow on the primary side, constant on secondary side.
The control valve is fitted in the return pipe.
09 R2 K
10 R2 K
TTM SHUNTOPAC® Green Line is a category of shunt units equipped with low-lead valves. Green Line is intended for customers with high demands for improved environmental assessments
TTM SHUNTOPAC® Dynamic gives correct regulation even in systems with varying differential pressures or where the differential pressure is unknown.
TTM SHUNTOPAC® EM is a category of shunt units equipped with ultrasound energy metering equipment according to EN 1434 class 2 and MID 2004/22/EC.
TTM SHUNTOPAC® FlexFit pipe bends
TTM Shuntopac® 20-40 Komp, 20-50 V/K/VÅ can be equipped with FlexFit pipe bends, that increasing the flexibility during installation.
Floor stands for shunt units
Robust floor stands with small foot-print made of epoxy-coated RHS tubes 50 × 30 mm.
Simonsland in Borås
When Kanico created a new district in the town of Borås, they chose TTM to supply shunt units for the HVAC systems. The area is called Simonsland and contains 60,000 m2 of buildings.
TTM Energiprodukter was one of the suppliers in the construction of the prestigious Copenhagen Opera House Together with their reseller, the company succeeded in winning the deal and delivering 98 different shunt units.
NCC are building their new head office at Järva Krog in Solna. The new head office has a strategic and easily accessible position adjacent to the E4 motorway.