Features & Benefits
Inline design
Inline flow allows high pressure drops without noise.
Adjustable set-point
Delivers desired differential pressure ensuring accurate balancing.
Measuring point
Simplifies the balancing procedure, increases its accuracy and enables troubleshooting.
Technical Information
Application:
Heating and cooling systems.
Installation in the return pipe.
Functions:
Differential pressure control
Pre-setting Δp over the load (ΔpL)
Measuring (ΔpL)
Dimensions:
1/2" - 2"
Pressure class:
PN 25 (363 psi)
Max. differential pressure (ΔpV):
230 psi
Setting range:
Δp over the load is adjustable within:
0.73-4.35 psi, 1.45-8.7 psi, 1.45-14.5 psi, 8.7-22 psi.
Delivery setting:
Maximum value (4.35, 8.7, 14.5, 22 psi).
Temperature:
Max. working temperature:
- with measuring points: 248°F
- without measuring points: 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
Membrans and gaskets: EPDM
Adjustment ring: Ryton PPS
Surface treatment:
Electrophoretic painting.
Marking:
IMI TA, Size, PN, Material, Cvs, Δp and flow direction arrow.
Connection:
External threads according to ISO 228.
Separate connections with NPT threads available.
Articles
Without measuring points (max. 302 °F)
External thread according to ISO 228.
Separate connections with NPT threads – see Connections for size 1/2"-2".
Included: Capillary pipe (Ø6 mm) 4 ft, connection set (G1/2+G3/4) for capillary pipe to e.g. STAD and 1 capillary pipe connection R1/4 (R1/8 mounted on valve).
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Drawings/DA_516/With_M/52_752-720_M.gif)
Size | d | L | L1* | H1 | H2 | Cvs | Weight [lb] | EAN | Article No | |
1-4 psi | ||||||||||
1/2" / 3/4" | G1 | 4.2 | 4.6 | 1.6 | 2.2 | 4.6 | 3.3 | 3831112528468 | 52 752-720 | |
1" / 1 1/4" | G1 1/4 | 4.9 | 5.9 | 2.0 | 2.8 | 13.9 | 5.7 | 3831112528659 | 52 752-725 | |
1 1/2" / 2" | G2 | 6.4 | 7.5 | 2.8 | 3.2 | 34.7 | 12.8 | 3831112528697 | 52 752-740 | |
4-9 psi | ||||||||||
1/2" / 3/4" | G1 | 4.2 | 4.6 | 1.6 | 2.2 | 4.6 | 3.3 | 3831112528451 | 52 754-620 | |
1" / 1 1/4" | G1 1/4 | 4.9 | 5.9 | 2.0 | 2.8 | 13.9 | 5.7 | 3831112528642 | 52 754-625 | |
1 1/2" / 2" | G2 | 6.4 | 7.5 | 2.8 | 3.2 | 34.7 | 12.8 | 3831112528680 | 52 754-640 | |
4-15 psi | ||||||||||
1/2" / 3/4" | G1 | 4.2 | 4.6 | 1.6 | 2.2 | 4.6 | 3.3 | 3831112528444 | 52 760-320 | |
1" / 1 1/4" | G1 1/4 | 4.9 | 5.9 | 2.0 | 2.8 | 13.9 | 5.7 | 3831112528635 | 52 760-325 | |
1 1/2" / 2" | G2 | 6.4 | 7.5 | 2.8 | 3.2 | 34.7 | 12.8 | 3831112528673 | 52 760-340 | |
9-21 psi | ||||||||||
1/2" / 3/4" | G1 | 4.2 | 4.6 | 1.6 | 2.2 | 4.6 | 3.3 | 3831112528475 | 52 760-920 | |
1" / 1 1/4" | G1 1/4 | 4.9 | 5.9 | 2.0 | 2.8 | 13.9 | 5.7 | 3831112528666 | 52 760-925 | |
1 1/2" / 2" | G2 | 6.4 | 7.5 | 2.8 | 3.2 | 34.7 | 12.8 | 3831112528703 | 52 760-940 |
*) Length incl adjustment ring.
Cvs = gpm at a pressure drop of 1 psi and fully open valve.
→ = Flow direction
With measuring points (max. 248 °F)
External thread according to ISO 228.
Separate connections with NPT threads – see Connections for size 1/2"-2".
Included: Capillary pipe (Ø6 mm) 4 ft, connection set (G1/2+G3/4) for capillary pipe to e.g. STAD and 1 capillary pipe connection R1/4 (R1/8 mounted on valve).
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Drawings/DA_516/With_M/52_795-020_M.gif)
Size | d | L | L1* | H1 | H2 | Cvs | Weight [lb] | EAN | Article No | |
1-4 psi | ||||||||||
1/2" / 3/4" | G1 | 4.2 | 4.6 | 1.6 | 3.3 | 4.6 | 3.3 | 3831112507111 | 52 795-020 | |
1" / 1 1/4" | G1 1/4 | 4.9 | 5.9 | 2.0 | 3.9 | 13.9 | 5.7 | 3831112507159 | 52 795-025 | |
1 1/2" / 2" | G2 | 6.4 | 7.5 | 2.8 | 4.3 | 34.7 | 12.8 | 3831112507197 | 52 795-040 | |
4-9 psi | ||||||||||
1/2" / 3/4" | G1 | 4.2 | 4.6 | 1.6 | 3.3 | 4.6 | 3.3 | 3831112507104 | 52 795-120 | |
1" / 1 1/4" | G1 1/4 | 4.9 | 5.9 | 2.0 | 3.9 | 13.9 | 5.7 | 3831112507142 | 52 795-125 | |
1 1/2" / 2" | G2 | 6.4 | 7.5 | 2.8 | 4.3 | 34.7 | 12.8 | 3831112507180 | 52 795-140 | |
4-15 psi | ||||||||||
1/2" / 3/4" | G1 | 4.2 | 4.6 | 1.6 | 3.3 | 4.6 | 3.3 | 3831112507098 | 52 795-220 | |
1" / 1 1/4" | G1 1/4 | 4.9 | 5.9 | 2.0 | 3.9 | 13.9 | 5.7 | 3831112507135 | 52 795-225 | |
1 1/2" / 2" | G2 | 6.4 | 7.5 | 2.8 | 4.3 | 34.7 | 12.8 | 3831112507173 | 52 795-240 | |
9-21 psi | ||||||||||
1/2" / 3/4" | G1 | 4.2 | 4.6 | 1.6 | 3.3 | 4.6 | 3.3 | 3831112507128 | 52 795-320 | |
1" / 1 1/4" | G1 1/4 | 4.9 | 5.9 | 2.0 | 3.9 | 13.9 | 5.7 | 3831112507166 | 52 795-325 | |
1 1/2" / 2" | G2 | 6.4 | 7.5 | 2.8 | 4.3 | 34.7 | 12.8 | 3831112507203 | 52 795-340 |
Threads according to ANSI/ASME B1.20.1-1983.Swivelling nut
With internal thread NPT
Threads according to ANSI/ASME B1.20.1-1983.
Swivelling nut
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Drawings/DA_516/With_M/52_751-3xx_M.gif)
d1 | d2 | L1* [in] | EAN | Article No |
G1 1/4 | 1 NPT | 2.87 | 3831112533394 | 52 751-307 |
G1 1/4 | 1 1/4 NPT | 3.15 | 3831112533400 | 52 751-308 |
G2 | 1 1/2 NPT | 3.23 | 3831112533417 | 52 751-309 |
G2 | 2 NPT | 3.66 | 3831112533424 | 52 751-310 |
*) Fitting length (from the gasket surface to the end of the connection).
Capillary pipe
Ø6 mm
1 pc included in DA 516.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Drawings/TA-PILOT/Without_M/52_759-215.jpg)
L [ft] | Ø | EAN | Article No |
4 | 6 mm | 3831112527157 | 52 759-215 |
Capillary pipe connection with shut-off
For connection of Ø6 mm capillary pipe to STAF/STAF-SG.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Drawings/DA_516/With_M/52_265-208--209_M.gif)
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
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Drawings/STAF_STAF-SG/With_M/52_179-009_M_180gr.gif)
d | L [in] | EAN | Article No |
M14x1 | 1.7 | 7318792813207 | 52 179-014 |
M14x1 | 4.1 | 7318793858108 | 52 179-015 |
For capillary pipe Ø6 mm with R1/4 and R1/8 connection.
Capillary pipe connection
For capillary pipe Ø6 mm with R1/4 and R1/8 connection.
1 pc R1/4 included in DA 516 (R1/8 mounted on valve)
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Drawings/TA-PILOT/Without_M/52_759-201.jpg)
Valve size | EAN | Article No | |
6 mm x R1/4 | 1/2" - 2" | 3831112527355 | 52 759-201 |
6 mm x R1/8 | 1/2" - 1 1/4" | 3831112533868 | 52 759-213 |
6 mm x R1/8 | 1 1/2" - 2" | 3831112533875 | 52 759-218 |
Suitable when insulation is used.Stainless steel/EPDM/Brass.
Venting extension
Suitable when insulation is used.
Stainless steel/EPDM/Brass.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Drawings/TA-PILOT/With_M/52_759-220_M.gif)
d | D [in] | L [in] | EAN | Article No |
M6 | 0.47 | 2.76 | 3831112531727 | 52 759-220 |
Must be used on STAD when connection of Ø6 mm capillary pipe.
Connection set STAD
Must be used on STAD when connection of Ø6 mm capillary pipe.
2 transition nipples (G1/2 and G3/4), 1 thrust nut (Ø6), 1 cone and 1 support bush are included in DA 516.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Drawings/DA_516/With_M/52_762-006_M.gif)
d | EAN | Article No |
G1/2 | 7318793850003 | 52 762-006 |
G3/4 | 7318793850102 | 52 762-106 |
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
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Drawings/Accessories_Balancing_valves/Without_M/52_179-006.jpg)
L [in] | EAN | Article No |
2.36 | 7318792812804 | 52 179-006 |
For connection of Ø6 mm copper pipe while permitting simultaneous use of our balancing instrument.
Measuring point, two-way
For connection of Ø6 mm copper pipe while permitting simultaneous use of our balancing instrument.
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Drawings/TA-PILOT/With_M/52_179-206_M.gif)
D | H [in] | EAN | Article No |
6 mm | 2.68 | 7318793848703 | 52 179-206 |
Brass/EPDM
Venting screw
Brass/EPDM
![](https://assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Drawings/KTM_512/With_M/52_759-211_M.gif)
d | EAN | Article No |
M6 | 3831112527980 | 52 759-211 |
Photos
![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52795020.gif?itok=gbOScTb7)
52795020
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52795025.gif?itok=rXn33XmT)
52795025
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52754640.gif?itok=Z9LAkZlg)
52754640
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52762006.gif?itok=_yYvsc_V)
52762006
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/DA516_DN15_20_pers_kat.gif?itok=KxZi4ntc)
DA516_DN15_20_pers_kat
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52760340.gif?itok=FczSLb7Q)
52760340
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52752720.gif?itok=shUapkUI)
52752720
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52760325.gif?itok=5_VgfH0j)
52760325
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52795225.gif?itok=ZSaZIzh9)
52795225
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52795040.gif?itok=t8UPnI3T)
52795040
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52795125.gif?itok=MCAkv1q0)
52795125
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52795320.gif?itok=gabota2m)
52795320
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52795220.gif?itok=kz2KWYXv)
52795220
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52760940.gif?itok=YxtaeYBS)
52760940
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52795120.gif?itok=7Vt-tsJb)
52795120
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52752725.gif?itok=UhQQirNQ)
52752725
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52754625.gif?itok=RIzj7d8P)
52754625
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52754620.gif?itok=N4hmgX9u)
52754620
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52760320.gif?itok=dpjUwIgl)
52760320
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52795140.gif?itok=wCJECURe)
52795140
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52795240.gif?itok=ygZp3BLO)
52795240
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52762106.gif?itok=yzRWNmW-)
52762106
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52752740.gif?itok=ReV6nzpL)
52752740
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/DA516_DN15_20_w-o_m-point_persp.gif?itok=c2B9zpx1)
DA516_DN15_20_w-o_m-point_persp
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52760920.gif?itok=jtN0gHHo)
52760920
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52760925.gif?itok=ZOQyweBJ)
52760925
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52795325.gif?itok=R2EF3LDP)
52795325
Select a format Download![](/sites/default/files/styles/large/https/assets.imi-hydronic.com/Pictures/Image_Gallery_TA/Photos/DA_516/52795340.gif?itok=KonntzWI)