FLOWRETT, TWORETT, TA-UNI

IMI TA
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​​​​​​​ Manifolds assemblies for one-pipe and two-pipe systems Compatible with most radiators on the market, these manifolds for one-pipe and two-pipe radiator systems delivers balancing and room temperature control functionality.

RVT valve (FLOWRETT)

Ensures trouble-free operation and reduced maintenance costs.

Calypso TRV-3 valve (TWORETT)

For accurate balancing, trouble-free operation and better comfort.

Low flow charateristics (TWORETT)

Flow range from a very low flow up to standard level.

Diverter TA-UNI

Convertible for one- or two-pipe application

Bottom or side connection

Ensures smoother installation.

Technical description

Application:

Heating systems

Functions:

Regulating
Presetting
Shut-off

Dimensions:

DN 10

Pressure classe:

PN 10

Max. differential pressure:

The max. pressure difference allowed for the valve not to open against a closed thermostat: 100 kPa.

Temperature:

Max. working temperature: 120°C, with protection cap or actuator 100°C.
Min. working temperature: -10°C.

Material:

Diverters:
Valve body: Hot stamped brass
Valve stem: Brass
O-rings: EPDM rubber

Radiator valves:
Valve body: Brass
O-rings: EPDM rubber
Valve disc: EPDM rubber
Return spring: Stainless steel
RVT/RVO:
Valve insert: Brass. (The complete thermostatic insert can be replaced using the fitting tool without draining the system.)
Spindle: Niro-steel spindle with double O-ring sealing. (The outer O-ring can be replaced under pressure.)
Calypso TRV-3:
Valve insert: Brass, PPS (polyphenylsulphide). (The complete thermostatic insert can be replaced using the fitting tool without draining the system.)
Spindle: Niro-steel spindle with double O-ring sealing.

Others:
Connection pipes: Steel
Radiator connections: AMETAL®


AMETAL® is the dezincification resistant alloy of IMI Hydronic Engineering.

Surface treatment:

Nickel-plated

Identification:

The distributors are marked with TA and a flow direction arrow on the valve body.
FLOWRETT:
The RSD 821 cap without splines.
TWORETT:
The RSD 802 cap with splines.
TA-UNI:
Cap without splines.

Radiator valves:
All radiator valves are marked with TA, country code, flow direction arrow, DN and KEYMARK-Designation on the valve body.
Calypso TRV-3: Red protection cap. Upper part of valve insert: Red.
RVT: Black protection cap. Black stuffing box.
RVO: White handwheel. Black stuffing box.

Connection to thermostatic head:

M30x1.5

Diverter

TWORETT/RSD 802

DN
Da
Kvs*
EAN
Article No
2-pipe
10
M22x1,5
1,54
7318792694400
50 802-100

FLOWRETT/RSD 821

DN
Da
Kvs*
EAN
Article No
1-pipe
10
M22x1,5
1,5
7318792693700
50 801-100

TA-UNI

Convertable 1-pipe/-2-pipe

DN
Da
Kvs*
EAN
Article No
1-pipe
10
M22x1,5
1,5
7318792642807
50 600-100
2-pipe
1,0

*) Whole manifold assembly.

Kvs = m3/h at a pressure drop of 1 bar and fully open valve.

Valves with presetting

Calypso TRV-3 Straight

Thermostatic controlled

DN
D
Da
L1
L2**
H
KvΔT2K
EAN
Article No
10
12
M22x1,5
22,5
110
50
0,010-0,520
4024052947010
50 820-012

Calypso TRV-3 Reversed angle

Thermostatic controlled

DN
D
Da
L
L1
L2**
H
KvΔT2K
EAN
Article No
10
12
M22x1,5
27
37
125
46,5
0,010-0,520
4024052946914
50 824-012

**) Valve with fitted thermostatic head K.

KvΔT2K = The values are valid when used together with thermostic head K (without diverter).

Valves without presetting

RVT Angle

Thermostatic controlled (not suitable for two-pipe system)

DN
D
Da
L
L1
L2**
H
KvΔT2K
Kvs
EAN
Article No
10
12
M22x1,5
27
37
125
46,5
0,65
1,00
7318794030404
50 520-312

**) Valve with fitted thermostatic head K.

RVO Angle

Hand controlled

DN
D
Da
L
L1
H
Kvs
EAN
Article No
10
12
M22x1,5
27
68,5
46,5
1,00
7318794030503
50 610-312

KvΔT2K = The values are valid when used together with thermostic head K (without diverter).

Kvs = m3/h at a pressure drop of 1 bar and fully open valve.

Connection pipe

Pipe – standard length

L
ØD
EAN
Article No
1100
12
7318793923103
50 630-001

Cut lengths for straight valve

c/c
EAN
Article No *
145
7318793912503
50 630-064
149-150
7318793912701
50 630-069
240
7318793914408
50 630-160
248-250
7318793914705
50 630-168
340
7318793915900
50 630-260
348-350
7318793916105
50 630-268
385-387
7318793916709
50 630-305
398-400
7318793917003
50 630-318
440
7318793917409
50 630-360
446
7318793917607
50 630-365
448-450
7318793917706
50 630-368
485
7318793918307
50 630-405
505
7318793945709
50 630-425
540
7318793919106
50 630-460
546
7318793919304
50 630-465
548-550
7318793919403
50 630-468
600
7318793920201
50 630-520
845-846
7318793921505
50 630-765

*) The last three digits of the article number represents to the pipe length, e.g. 50 630-305 = 305 mm.

Cut lengths for reversed angle valve

c/c
EAN
Article No *
245-246
7318793915306
50 630-202
248-250
7318793915504
50 630-205
345-346
7318793916501
50 630-302
348-350
7318793916709
50 630-305
355
7318793916907
50 630-312
446
7318793918109
50 630-402
448-450
7318793918307
50 630-405
546
7318793919700
50 630-502
548-550
7318793919908
50 630-505

*) The last three digits of the article number represents to the pipe length, e.g. 50 630-305 = 305 mm.

Radiator connections

Elbow

d
Da
L
H
EAN
Article No
M22x1,5
M22x1,5
27
26,5
7318792689802
50 702-510

Straight

d
Da
L
L1
EAN
Article No
R3/8
M22x1,5
25
8
7318792687402
50 701-510
R1/2
M22x1,5
25
10
7318792687600
50 701-516

Straight with O-ring

d
Da
L
EAN
Article No
G1/2
M22x1,5
33
7318793825803
50 707-616

Connection set FPL-MT with O-ring

For ALU/PEX pipe.

d
L1
For MT-pipe
D
N
EAN
Article No
M22x1,5
14
16x2,0 *
25
7318792963100
53 693-116

1) Over all length.

*) Support bush made of brass CW724R.

Accessories

Setting key

For V-exact II from 2012, Calypso exact, Calypso TRV-3 and Vekolux.
Color grey.

EAN
Article No
4024052035823
3670-01.142

Fitting tool

complete with case, box spanner and replacement seals, for replacing thermostatic inserts without draining off the heating system (for DN 10 to DN 20).

EAN
Article No
Fitting tool
4024052298914
9721-00.000



Thermostatic heads - see catalogue leaflets K, DX and Halo.
Thermoelectric actuators - see catalogue leaflets EMO T and TA-Slider 160.
Other accessories - see catalogue leaflet ACCESSORIES AND SPARE PARTS.
Couplings - see catalogue leaflets FPL, FPL-MT and FPL-PX.

Spare parts

Valve insert

Calypso TRV-3

Can be replaced during operation.

EAN
Article No
4024052973316
3670-00.300

Special insert Calypso TRV-3 for inverse direction of flow with reversed supply and return pipes

NOTE: Presetting and values according to thermostatic valve body V-exact II, see www.imi-hydronic.com.

Can be replaced during operation.

EAN
Article No
4024052951611
3700-24.300

Valve insert

RVT, RVO

Can be replaced during operation.

EAN
Article No
4024052132614
1302-02.300

Handwheel

L
EAN
Article No
36
4024052323494
1303-01.325

Name Document Type Download All
FLOWRETT_TWORETT_TA-UNI_EN_low.pdf Technical Specifications
Flowrett_instruction_from_April2020.pdf Installation Instructions
Tworett_instruction.pdf Installation Instructions
TA-UNI_instruction_from_April2020.pdf Installation Instructions
Calypso_TRV-3_instruction.pdf Installation Instructions
Measures_bottom_side_manifold_assemblies_2020.pdf Installation Instructions
Statem_of_Conf_Flowrett_TA-UNI.pdf Legal Documents
Statem_of_Conf_Tworett_TA-UNI.pdf Legal Documents
Accessories_radiator_valves_EN_low.pdf Related Products
EMO-T_EN_low.pdf Related Products

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