Features & Benefits

Easy handling and installation

Very low weight and small overall proportions.

Precise and stable differential pressure control

Unrivaled accuracy thanks to the new PILOT technology.

Measuring and system diagnostics

Unique features to validate and better understand system behavior to minimize energy consumption.

Technical description

Application:

Heating and cooling systems.
Installation in the return pipe.

Functions:

Differential pressure control
Pre-setting Δp over the load (ΔpL)
Measuring (ΔpL)

Dimensions:

2 1/2" - 8"

Pressure class:

Class 150

Max. differential pressure (ΔpV):

174 psi

Setting range:

1* - 7 psi
4* - 21 psi
12* - 58 psi
*) Delivery settings

Leakage rate:

Tight sealing

Temperature:

Max. working temperature:
- with measuring points, standard: 248 °F
- with measuring points, double secured: 302 °F
Min. working temperature: 14 °F

Media:

Water or neutral fluids, water-glycol mixtures (0-57%).

Material:

Valve body: Ductile iron EN-GJS-400-15
Pilot extension body: Brass
Pilot body: AMETAL®
O-rings: EDPM rubber
Seat seal: EPDM/Stainless steel
Plug mechanism: Stainless steel and brass
Membrane: EPDM rubber
Springs: Stainless steel
Screws and nuts: Stainless steel


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

Surface treatment:

Pilot body: Non treated
Valve body: Electrophoretic painting.

Marking:

TA, IMI, Size, Class, Cvm, Tmin/max, serial number, valve body material and flow direction arrow, label, ΔpL range.
Colour identification on top of the pilot:
1 - 7 psi: Blue
4 - 21 psi: Orange
12 - 58 psi: Grey
CE-marking:
2 1/2" - 5": CE
6" - 8": CE 1370 *
*) Notified body.

Flanges:

According to ASME/ANSI B16.42 Class 150.

Articles – Max. 248 °F

Flanged

Flanges according ASME/ANSI B16.42 Class 150.

3.3 ft capillary pipe (Ø0.25"), capillary pipe connection Ø0.25" x R1/4" and capillary pipe connection with shut-off Ø0.25" x G3/8" are included.

Class 150

Size
Number of
bolt holes
D
[in]
L
[in]
H1
[in]
H2
[in]
Cvm
qmax
[gpm]
lb.
Article No **
North America
Article No
International
1 - 7 psi
2 1/2"
4
7.09
7.48
10.7
3.54
87
233
39.7
23121-2411-065
23121-2311-065
3"
4
7.52
7.99
11.1
3.78
127
343
46.3
23121-2411-080
23121-2311-080
4"
8
9.02
9.02
11.9
4.53
208
559
75.0
23121-2411-100
23121-2311-100
5"
8
10
10
12.3
5
312
841
99.2
23121-2411-125
23121-2311-125
6"
8
11
10.5
13
5.51
462
1246
126
23121-2411-150
23121-2311-150
8"
8
13.5
11.5
14.2
6.77
694
1867
183
23121-2411-200
23121-2311-200
4 - 21 psi
2 1/2"
4
7.09
7.48
10.7
3.54
87
233
39.7
23121-2421-065
23121-2321-065
3"
4
7.52
7.99
11.1
3.78
127
343
46.3
23121-2421-080
23121-2321-080
4"
8
9.02
9.02
11.9
4.53
208
559
75.0
23121-2421-100
23121-2321-100
5"
8
10
10
12.3
5
312
841
99.2
23121-2421-125
23121-2321-125
6"
8
11
10.5
13
5.51
462
1246
126
23121-2421-150
23121-2321-150
8"
8
13.5
11.5
14.2
6.77
694
1867
183
23121-2421-200
23121-2321-200
12 - 58 psi
2 1/2"
4
7.09
7.48
10.7
3.54
87
233
39.7
23121-2431-065
23121-2331-065
3"
4
7.52
7.99
11.1
3.78
127
343
46.3
23121-2431-080
23121-2331-080
4"
8
9.02
9.02
11.9
4.53
208
559
75.0
23121-2431-100
23121-2331-100
5"
8
10
10
12.3
5
312
841
99.2
23121-2431-125
23121-2331-125
6"
8
11
10.5
13
5.51
462
1246
126
23121-2431-150
23121-2331-150
8"
8
13.5
11.5
14.2
6.77
694
1867
183
23121-2431-200
23121-2331-200


**) Distributed by Victaulic.

Cvm = gpm at a pressure drop of 1 psi and maximum opening corresponding to the p-band.

Articles – Max. 302 °F (double secured measuring points)

Flanged

Flanges according ASME/ANSI B16.42 Class 150.

3.3 ft capillary pipe (Ø0.25"), capillary pipe connection Ø0.25" x R1/4" and capillary pipe connection with shut-off Ø0.25" x G3/8" are included.

Class 150

Size
Number of
bolt holes
D
[in]
L
[in]
H1
[in]
H2
[in]
Cvm
qmax
[gpm]
lb.
Article No **
North America
Article No
International
1 - 7 psi
2 1/2"
4
7.09
7.48
10.7
3.54
87
233
39.7
23121-2412-065
23121-2312-065
3"
4
7.52
7.99
11.1
3.78
127
343
46.3
23121-2412-080
23121-2312-080
4"
8
9.02
9.02
11.9
4.53
208
559
75.0
23121-2412-100
23121-2312-100
5"
8
10
10
12.3
5
312
841
99.2
23121-2412-125
23121-2312-125
6"
8
11
10.5
13
5.51
462
1246
126
23121-2412-150
23121-2312-150
8"
8
13.5
11.5
14.2
6.77
694
1867
183
23121-2412-200
23121-2312-200
4 - 21 psi
2 1/2"
4
7.09
7.48
10.7
3.54
87
233
39.7
23121-2422-065
23121-2322-065
3"
4
7.52
7.99
11.1
3.78
127
343
46.3
23121-2422-080
23121-2322-080
4"
8
9.02
9.02
11.9
4.53
208
559
75.0
23121-2422-100
23121-2322-100
5"
8
10
10
12.3
5
312
841
99.2
23121-2422-125
23121-2322-125
6"
8
11
10.5
13
5.51
462
1246
126
23121-2422-150
23121-2322-150
8"
8
13.5
11.5
14.2
6.77
694
1867
183
23121-2422-200
23121-2322-200
12 - 58 psi
2 1/2"
4
7.09
7.48
10.7
3.54
87
233
39.7
23121-2432-065
23121-2332-065
3"
4
7.52
7.99
11.1
3.78
127
343
46.3
23121-2432-080
23121-2332-080
4"
8
9.02
9.02
11.9
4.53
208
559
75.0
23121-2432-100
23121-2332-100
5"
8
10
10
12.3
5
312
841
99.2
23121-2432-125
23121-2332-125
6"
8
11
10.5
13
5.51
462
1246
126
23121-2432-150
23121-2332-150
8"
8
13.5
11.5
14.2
6.77
694
1867
183
23121-2432-200
23121-2332-200


**) Distributed by Victaulic.

Cvm = gpm at a pressure drop of 1 psi and maximum opening corresponding to the p-band.

Additional equipment

For working area less than Cv = 5.

Expansion vessel

For working area less than Cv = 5.

3.3 ft capillary pipe (Ø0.25"), capillary pipe connection Ø0.25" x R1/4" and capillary pipe connection with shut-off Ø0.25" x G3/8" are included.

Factory set at 43.5 psi (3 bar).

H [in]
D [in]
EAN
Article No
10.8
3.5
3831112532052
23124-2542-001
Accessories

For capillary pipe Ø0.25 in. with R1/4 connection.

Capillary pipe connection

For capillary pipe Ø0.25 in. with R1/4 connection.

1 pc 0.25xR1/4 included in TA-PILOT-R.

EAN
Article No
0.25" x R1/4"
52 759-222

Brass/EPDM

Venting screw

Brass/EPDM

d
EAN
Article No
M6
3831112527980
52 759-211

Can be installed without draining of the system.AMETAL®/Stainless steel/EPDM

Measuring point, extension 2.36 in.

Can be installed without draining of the system.
AMETAL®/Stainless steel/EPDM

L [in]
EAN
Article No
2.36
7318792812804
52 179-006

Capillary pipe

Ø0.25 in.

1 pc included in TA-PILOT-R.

L [ft]
EAN
Article No
3.3
52 759-221

Capillary pipe connection with shut-off

For replacement of existing measuring point on STAF/STAF-SG.

52 266-208:

1 pc G3/8 included in TA-PILOT-R.

d
D
Valve size
EAN
Article No
G1/4
6 mm
3/4" - 2"
7318793999504
52 265-209
G3/8
6 mm
2 1/2" - 16"
7318793999405
52 265-208

Max 248°F (intermittent 302°F)AMETAL®/EPDM

Measuring point

Max 248°F (intermittent 302°F)
AMETAL®/EPDM

d
L [in]
EAN
Article No
M14x1
1.7
7318792813207
52 179-014
M14x1
4.1
7318793858108
52 179-015
d
L [in]
EAN
Article No
M14x1
1.7
7318792813207
52 179-014
M14x1
4.1
7318793858108
52 179-015

Suitable when insulation is used.Stainless steel/EPDM/Brass.

Venting extension

Suitable when insulation is used.
Stainless steel/EPDM/Brass.

d
D [in]
L [in]
EAN
Article No
M6
0.47
2.76
3831112531727
52 759-220

For connection of capillary pipe while permitting simultaneous use of our balancing instrument.

Measuring point, two-way

For connection of capillary pipe while permitting simultaneous use of our balancing instrument.

For connection to existing measuring point on STAF/STAF-SG.

Can be installed during operation.

D
H [in]
EAN
Article No
0.25"
2.7
7318794026100
52 179-207

TA-PILOT-R_DN100_w_vessel

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52759215

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TA-PILOT-R_DN100

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231212112100

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TA-PILOT-R_DN100_kat_w_path

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52265208

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52179015

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52179206

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Expansion_vessel_TA-PILOT-R

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231242542001

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52759201

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Technical specifications

Installation instructions

Legal documents

Drawings

2D3D

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