TA DA 516 User manual

1
DA 516, DAF 516 6-10-5 XX
Differential pressure controller 2007.07
Technical description
Application:
Heating and cooling systems with variable flow.
Function:
Differential pressure control over the load.
DA 516: Installation in return pipe.
DAF 516: Installation in inlet pipe.
Pressure class:
PN 25 or PN 16 (DN 100 and 125)
Max. differential pressure:
1600 kPa = 16 bar
Temperature:
Max. working temperature: 140°C
Min. working temperature: -10°C
Setting range:
Differential pressure adjustable in ranges 5-30, 10-60,
10-100 and 60-150 kPa.
Media:
Water and neutral fluids, water-glycol mixtures.
Material:
Valve body: Ductile iron EN-GJS-400-18LT
Diaphragms and gaskets: EPDM
Adjustment ring: DN 15-50 Ryton plastic,
DN 65-125 R St 37-2 steel.
Surface treatment:
Electrophoretic painting.
Marking:
TA, DN, PN, GGG 40.3, Kvs, Dp and flow direction arrow.
Flanges:
DN 15-50 (optional): According to EN-1092-2:1997, type 16.
DN 65-125: According to EN-1092-2:1997, type 21.

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DA 516
TA No DN d D L L1* Kvs Kg
PN 25
52 763-020 15/20 G1 97 106 116 4 1,5
52 763-025 25/32 G1 1/4 112 125 150 12 2,6
52 763-040 40/50 G2 146 162 190 30 5,8
L, L1*
ØD
d
d
DN 15-50 5-30 kPa
TA No DN d D L L1* Kvs Kg
PN 25
52 761-020 15/20 G1 97 106 116 4 1,5
52 761-025 25/32 G1 1/4 112 125 150 12 2,6
52 761-040 40/50 G2 146 162 190 30 5,8
10-60 kPa
TA No DN d D L L1* Kvs Kg
PN 25
52 760-020 15/20 G1 97 106 116 4 1,5
52 760-025 25/32 G1 1/4 112 125 150 12 2,6
52 760-040 40/50 G2 146 162 190 30 5,8
10-100 kPa
TA No DN d D L L1* Kvs Kg
PN 25
52 762-020 15/20 G1 97 106 116 4 1,5
52 762-025 25/32 G1 1/4 112 125 150 12 2,6
52 762-040 40/50 G2 146 162 190 30 5,8
60-150 kPa
Capillary pipe (Ø6) included:
DN 15-50: 1 200 mm
→ = Flow direction
*) Length incl adjustment ring.

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L
ØD
DN 65-125
TA No DN D L L1* Kvs Kg
PN 16
52 761-490 100 320 254 254 150 58
52 761-491 125 320 254 254 150 58
PN 25
52 761-065 65 210 160 160 60 18
52 761-080 80 210 160 160 60 18
52 761-090 100 320 254 254 150 58
52 761-091 125 320 254 254 150 58
10-60 kPa
TA No DN D L L1* Kvs Kg
PN 16
52 763-490 100 320 254 254 150 58
52 763-491 125 320 254 254 150 58
PN 25
52 763-065 65 210 160 160 60 18
52 763-080 80 210 160 160 60 18
52 763-090 100 320 254 254 150 58
52 763-091 125 320 254 254 150 58
5-30 kPa
TA No DN D L L1* Kvs Kg
PN 16
52 760-490 100 320 254 254 150 58
52 760-491 125 320 254 254 150 58
PN 25
52 760-065 65 210 160 160 60 18
52 760-080 80 210 160 160 60 18
52 760-090 100 320 254 254 150 58
52 760-091 125 320 254 254 150 58
10-100 kPa
TA No DN D L L1* Kvs Kg
PN 16
52 762-490 100 320 254 254 150 58
52 762-491 125 320 254 254 150 58
PN 25
52 762-065 65 210 160 160 60 18
52 762-080 80 210 160 160 60 18
52 762-090 100 320 254 254 150 58
52 762-091 125 320 254 254 150 58
60-150 kPa
Capillary pipe (Ø6) included:
DN 65-125: 1 500 mm
DN 65-125 are flanged and do not need any separate connections.
→ = Flow direction
*) Length incl adjustment ring.
DA 516

4
DAF 516
TA No DN d D L L1* Kvs Kg
PN 25
52 763-120 15/20 G1 97 106 116 4 1,5
52 763-125 25/32 G1 1/4 112 125 150 12 2,6
52 763-140 40/50 G2 146 162 190 30 5,8
L, L1*
ØD
d
d
DN 15-50 5-30 kPa
TA No DN d D L L1* Kvs Kg
PN 25
52 761-120 15/20 G1 97 106 116 4 1,5
52 761-125 25/32 G1 1/4 112 125 150 12 2,6
52 761-140 40/50 G2 146 162 190 30 5,8
10-60 kPa
TA No DN d D L L1* Kvs Kg
PN 25
52 760-120 15/20 G1 97 106 116 4 1,5
52 760-125 25/32 G1 1/4 112 125 150 12 2,6
52 760-140 40/50 G2 146 162 190 30 5,8
10-100 kPa
TA No DN d D L L1* Kvs Kg
PN 25
52 762-120 15/20 G1 97 106 116 4 1,5
52 762-125 25/32 G1 1/4 112 125 150 12 2,6
52 762-140 40/50 G2 146 162 190 30 5,8
60-150 kPa
Capillary pipe (Ø6) included:
DN 15-50: 1 200 mm
→ = Flow direction
*) Length incl adjustment ring.

5
L
ØD
DN 65-125
TA No DN D L L1* Kvs Kg
PN 16
52 761-590 100 320 254 254 150 58
52 761-591 125 320 254 254 150 58
PN 25
52 761-165 65 210 160 160 60 18
52 761-180 80 210 160 160 60 18
52 761-190 100 320 254 254 150 58
52 761-191 125 320 254 254 150 58
10-60 kPa
TA No DN D L L1* Kvs Kg
PN 16
52 763-590 100 320 254 254 150 58
52 763-591 125 320 254 254 150 58
PN 25
52 763-165 65 210 160 160 60 18
52 763-180 80 210 160 160 60 18
52 763-190 100 320 254 254 150 58
52 763-191 125 320 254 254 150 58
5-30 kPa
TA No DN D L L1* Kvs Kg
PN 16
52 760-590 100 320 254 254 150 58
52 760-591 125 320 254 254 150 58
PN 25
52 760-165 65 210 160 160 60 18
52 760-180 80 210 160 160 60 18
52 760-190 100 320 254 254 150 58
52 760-191 125 320 254 254 150 58
10-100 kPa
TA No DN D L L1* Kvs Kg
PN 16
52 762-590 100 320 254 254 150 58
52 762-591 125 320 254 254 150 58
PN 25
52 762-165 65 210 160 160 60 18
52 762-180 80 210 160 160 60 18
52 762-190 100 320 254 254 150 58
52 762-191 125 320 254 254 150 58
60-150 kPa
Capillary pipe (Ø6) included:
DN 65-125: 1 500 mm
DN 65-125 are flanged and do not need any separate connections.
→ = Flow direction
*) Length incl adjustment ring.
DAF 516

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Connections for DN 15-50
TA No d1 D L1
52 759-615 G1 95 47
52 759-620 G1 105 47
52 759-625 G1 1/4 115 62
52 759-632 G1 1/4 115 62
52 759-640 G2 150 72
52 759-650 G2 165 72
With flange
Attention! Must be used on the outlet
side.
TA No d1 d2 L1
52 759-015 G1 G1/2 26
52 759-020 G1 G3/4 32
52 759-025 G1 1/4 G1 47
52 759-032 G1 1/4 G1 1/4 52
52 759-040 G2 G1 1/2 52
52 759-050 G2 G2 64,5
With female thread
L1
d2 d1
L1
ØD d1
ØD
L1
d1
For welding
With flange
Attention! Can be used on the inlet
side only.
TA No d1 D L1
52 759-315 G1 20,8 37
52 759-320 G1 26,3 42
52 759-325 G1 1/4 33,2 47
52 759-332 G1 1/4 40,9 47
52 759-340 G2 48,0 47
52 759-350 G2 60,0 52
TA No d1 D L1
52 759-515 G1 95 10
52 759-520 G1 105 20
52 759-525 G1 1/4 115 5
52 759-532 G1 1/4 140 15
52 759-540 G2 150 5
52 759-550 G2 165 20
TA No d1 d2 L1
52 759-115 G1 G1/2 34
52 759-120 G1 G3/4 40
52 759-125 G1 1/4 G1 40
52 759-132 G1 1/4 G1 1/4 45
52 759-140 G2 G1 1/2 45
52 759-150 G2 G2 50
With male thread
L1
d2 d1
ØD
L1
d1

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Operating function
DA 516
Installation in the return pipe. The pressure upstream the consumer acts through an external impulse pipe (Dp+).
The pressure downstream the consumer (upstream the controller) acts through an internal impulse pipe (Dp-).
The spring force can be adjusted by turning the setting wheel (5).
DAF 516
Installation in the inlet pipe. Function is the same as DA 516, except that the pressure downstream the consumer (from down-
stream the controller) acts through the another external copper impulse pipe (Dp-).
5
∆p-
11 10
3
26
∆p-
∆p+ 1432
7
589
DN 65-125DN 15-50
DAF 516
STAD
(STAF)
M
STAD
(STAF)
DA 516
M
DAF 516
STAD
(STAF)
M
STAD
(STAF)
DA 516
M
Installation
Install the controller in the return pipe, downstream the consumer (DA 516) or in the inlet pipe, upstream the consumer (DAF
516). Flow direction is shown by arrow on the valve’s identification plate (6). The best position is horizontal with vent screws (2)
on top. Installation of a strainer in front of the controller is recommended.
Connect copper impulse pipe (Dp+) to the pipeline upstream the consumer. In case of DAF 516, connect another copper impulse
pipe (Dp-) downstream the consumer (from behind the controller). In case of a horizontal pipeline connect the copper impulse
pipe laterally to prevent air and dirt from entering.
It is important to ensure that working temperature and pressure do not exceed allowed values.
Before you mount the controller, check the fitting length of the controller and distance between connections on the pipeline.
You should fit the connections (welding and threaded ends) to the pipeline first, then clean the remains of welding operations
if needed. Then install the controller. If you use flanged connections, check pitch diameter and the diameter of the holes for the
screws.
When the pipeline and the controller are full of water and the pressure is stabilized, vent the controller by the vent screws (2).
If the measuring point is mounted on DA 516 the differential pressure over the load can be measured by using the balancing
instrument TA-CBI or measuring instrument TA-CMI. Installation of balancing valve STAD (STAF) is recommended to enable flow
measurement, commissioning and troubleshooting with TA-CBI/TA-CMI.

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∆p
1
4
6
Setting
DN 15-50
1. Unscrew the fixing screw (4) - Allen key 2 mm - on setting
wheel (1).
2. Turn the setting wheel clockwise to increase the differential
pressure and vice versa.
3. On the setting wheel there is a mark which shows how
much Dp changes at one turn of the setting wheel.
4. The pressures can be controlled through pressure gauges
on the pipeline.
5. After required differential pressure Dp is reached, tighten
the fixing screw on the setting wheel.
6. It is also possible to secure the setting with the leaden seal
- use holes on the body (8) and the setting wheel (9).
DN 65-125
1. Principle is the same as DN 15-50, except there is no mark
which shows how the Dp changes at one turn of the setting
wheel and also there is no fixing screw and no leaden seal
to secure the setting.
2. The setting wheel (10) moves indirectly by the middle nut
(11), which is turned by the batons supplied with the
controller.
3. The pressures can be controlled through pressure gauges
on the pipeline.
∆p = min
∆p = max
Sizing
Select the size according to maximal speed. To prevent noise, maximal speed should not exceed 2 m/s in residential buildings
and 3 m/s in industrial buildings. Control the pressure drop in the valve by formula:
Dp = 100 x q2 / Kvs2[kPa], where q is flow in m3/h.
Tour & Andersson retains the right to make changes to its products and specifications without prior notice.