STAF-SG – ANSI flanges

IMI TA
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​​​​​​​ Balancing valve size 3/4" - 16" A flanged, ductile iron balancing valve that delivers accurate hydronic performance in an impressive range of applications. The STAF-SG is ideal for use mainly on the secondary side in heating and cooling systems.

Handwheel

Equipped with a digital read-out, the handwheel ensures accurate and straightforward balancing.

Self-sealing measuring points

For simple, accurate balancing.

Positive shut-off function

For easy maintenance.

Technical description

Application:

Heating (not steam) and cooling systems

Functions:

Balancing
Pre-setting
Measuring
Shut-off (The restriction cone for valve sizes 2 1/2" - 16" is pressure released).

Dimensions:

3/4" - 16"

Pressure class:

Class 150

Temperature / Max. pressure:
-4 to 100 °F / 250 psi
200 °F / 235 psi
248 °F / 225 psi

Temperature:

Max. working temperature: 248°F
Min. working temperature: -4°F

Media:

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

Material:

Body: Ductile iron, EN-GJS-400-15 (~ ASTM A536 Grade 60-40-18. ISO 1083 Grade 400-15).

Size 3/4" - 6":
Bonnet, cone and spindle of AMETAL®.
Size 8" - 12":
Bonnet and cone of ductile iron EN-GJS-400-15, and spindle of AMETAL®.
Size 14" - 16":
Bonnet of ductile iron EN-GJS-400-15, cone of silicon brass CuZn16Si4-C (EN 1982) and gunmetal CuSn5Zn5Pb5 (EN 1982), and spindle of AMETAL®.

Seals: EPDM.
Slip washer: PTFE.
Bonnet bolts: Surface treated steel.
Measuring points: AMETAL® and EPDM.
Handwheel: Size 3/4"-2" polyamide and TPE, size 2 1/2"-6" polyamide, size 8"-16" aluminium.


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

Surface treatment:

Size 3/4" - 8": Epoxy painting.
Size 10" - 16": Duasolid painting.

Marking:

Size 3/4" - 2": TA, PN, DN (mm), 400-15 (material) and flow direction arrow.
Size 2 1/2" - 16": TA, Class 150, size (inch), 60-40-18 (material), casting date and flow direction arrow.
CE-marking:
CE: STAF-SG (Class 150) size 2" - 5".
CE 0409*: STAF-SG (Class 150) size 6" - 12".
*) Notified body.

Flanges:

Size 3/4" - 2": ISO 7005-2 and EN 1092-2. Bolt circle according to Class 150 ASME/ANSI B16.42.
Size 2 1/2" - 16": Class 150 ASME/ANSI B16.42 (~ PN 20 according to ISO 7005-2).

Face to face:

According to ISO 5752 series 1 and EN 558-1 series 1.

Articles

Threaded bonnet

Size
Number of
bolt holes
L [in]
H [in]
D [in]
Cvs
lb
EAN
Article No **
North America
Article No
International
3/4"
4
5.91
3.94
4.13
6.61
5.1
7318792830600
-
52 182-920
1"
4
6.30
4.29
4.53
10.1
6.4
7318792830709
-
52 182-925
1 1/4"
4
7.09
4.37
5.51
16.5
9.5
7318792830808
-
52 182-932
1 1/2"
4
7.87
4.80
5.91
22.3
11.5
7318792830907
-
52 182-940
2"
4
9.06
4.80
6.50
38.3
15
7318792831003
-
52 182-950

Bolted bonnet

Size
Number of
bolt holes
L [in]
H [in]
D [in]
Cvs
lb
Article No **
North America
Article No
International
2 1/2"
4
11.42
8.07
7.09
98.6
24.3
52 167-965
52 182-965
3"
4
12.20
8.66
7.48
139
30.9
52 167-980
52 182-980
4"
8
13.78
9.45
9.06
220
43.2
52 167-990
52 182-990
5"
8
15.75
10.83
10.04
348
61.9
52 167-991
52 182-991
6"
8
18.90
11.22
11.02
487
81.8
52 167-992
52 182-992

Bolted bonnet

Measuring points on body

Size
Number of
bolt holes
L [in]
H [in]
D [in]
Cvs
lb
Article No **
North America
Article No
International
8"
8
23.62
16.93
13.58
887
167.5
52 167-993
52 182-993
10"
12
28.74
16.54
15.98
1375
269.0
52 167-994
52 182-994
12"
12
33.46
18.90
19.02
1682
359.4
52 167-995
52 182-995
14" *
12
38.58
23.03
20.98
2552
654.8
52 182-996 *
52 182-996 *
16" *
16
43.31
25.20
23.50
3225
895.1
52 182-997 *
52 182-997 *

→ = Flow direction


Cvs = gpm at a pressure drop of 1 psi and fully open valve.

*) NOTE: Not CE marked products. Not allowed to be installed in EU or EFTA countries.


**) Distributed by Victaulic.

Accessories

Measuring point

AMETAL®/EPDM

d
L [in]
EAN
Article No
Size 3/4" - 2"
R1/4
1.535
7318792813108
52 179-009
R1/4
4.055
7318792814600
52 179-609
Size 2 1/2" - 16"
R3/8
1.772
7318792813009
52 179-008
R3/8
3.976
7318792814501
52 179-608

Measuring point, extension 2.36 in.

(not for 52 179-000/-601)
Can be installed without draining of the system.
AMETAL®/Stainless steel/EPDM

EAN
Article No
7318792812804
52 179-006

Handwheel

Complete

Size
EAN
Article No
3/4" - 2"
7318794043503
52 186-007
2 1/2" - 6"
7318792834806
52 186-002
8" - 16"
7318792835001
52 186-004

Identification tag

EAN
Article No
7318792779206
52 161-990

Allen key

For locking of setting.

[mm]
For size
EAN
Article No
3
3/4" - 6"
7318792836008
52 187-103
5
8 "- 16"
7318792836107
52 187-105

Insulation

For heating/cooling
CFC-free polyurethane. Covered with grey PVC.
See catalogue leaflet "Prefab insulations" for complete details.

For size
L [in]
D [in]
C [in]
EAN
Article No
2"
15.4
9.84
9.91
7318792840708
52 189-850
2 1/2"
17.7
10.6
10.7
7318792840807
52 189-865
3"
18.9
11.4
11.5
7318792840906
52 189-880
4"
20.5
12.6
12.7
7318792841002
52 189-890
5"
22.4
13.8
13.9
7318792841101
52 189-891
6"
26.0
15.0
15.0
7318792841200
52 189-892

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