DA 516 – NPT threads/ANSI flanges
Differential pressure controller with adjustable set-point – DN 15-50
This compact differential pressure controller for heating and cooling systems is particularly effective in situations requiring high temperatures and/or pressure drop. DA 516 can be used both on the primary and secondary side in district heating and comfort cooling systems. Rust protection is assured thanks to the electrophoretic painted ductile iron body.
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 return pipe.
Functions:
Differential pressure control
Pre-setting Δp over the load (ΔpL)
Measuring (ΔpL)
Dimensions:
DN 15-150
Pressure class:
DN 15-50: PN 25
DN 65-150: Class 150
Max. differential pressure (ΔpV):
1600 kPa = 16 bar
Setting range:
Δp over the load is adjustable within:
5-30 kPa, 10-60 kPa, 10-100 kPa or 60-150 kPa.
Delivery setting:
Maximum value (30, 60, 100 resp. 150 kPa).
Temperature:
Max. working temperature:
- with measuring points: 120°C
- without measuring points: 150°C
Min. working temperature: -10°C
Media:
Water or neutral fluids, water-glycol mixtures (0-57%).
Material:
Valve body: Ductile iron EN-GJS-400-15
Diaphragms and gaskets: EPDM
Adjustment ring: Ryton PPS
Surface treatment:
Electrophoretic painting.
Marking:
IMI TA, Size, PN, Material, Kvs/Cvs, Δp and flow direction arrow.
Threads:
DN 15-50: According to ISO 228.
Separate connections (NPT threaded/ANSI flanged) available.
Flanges:
According to ASME/ANSI B16.42 Class 150.
Articles
Without measuring points (max. 150°C)
Male threads according to ISO 228.
Separate connections with NPT threads or ANSI flanges – see "Connections for DN 15-50".
Included: Capillary pipe (Ø6) 1 200 mm, 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).
PN 25
DN | d | L | L1* | H1 | H2 | Kvs | Kg | EAN | Article No | |
5-30 kPa | ||||||||||
15/20 | G1 | 106 | 116 | 41 | 57 | 4 | 1,5 | 3831112528468 | 52 752-720 | |
25/32 | G1 1/4 | 125 | 150 | 51 | 70 | 12 | 2,6 | 3831112528659 | 52 752-725 | |
40/50 | G2 | 162 | 190 | 70 | 82 | 30 | 5,8 | 3831112528697 | 52 752-740 | |
10-60 kPa | ||||||||||
15/20 | G1 | 106 | 116 | 41 | 57 | 4 | 1,5 | 3831112528451 | 52 754-620 | |
25/32 | G1 1/4 | 125 | 150 | 51 | 70 | 12 | 2,6 | 3831112528642 | 52 754-625 | |
40/50 | G2 | 162 | 190 | 70 | 82 | 30 | 5,8 | 3831112528680 | 52 754-640 | |
10-100 kPa | ||||||||||
15/20 | G1 | 106 | 116 | 41 | 57 | 4 | 1,5 | 3831112528444 | 52 760-320 | |
25/32 | G1 1/4 | 125 | 150 | 51 | 70 | 12 | 2,6 | 3831112528635 | 52 760-325 | |
40/50 | G2 | 162 | 190 | 70 | 82 | 30 | 5,8 | 3831112528673 | 52 760-340 | |
60-150 kPa | ||||||||||
15/20 | G1 | 106 | 116 | 41 | 57 | 4 | 1,5 | 3831112528475 | 52 760-920 | |
25/32 | G1 1/4 | 125 | 150 | 51 | 70 | 12 | 2,6 | 3831112528666 | 52 760-925 | |
40/50 | G2 | 162 | 190 | 70 | 82 | 30 | 5,8 | 3831112528703 | 52 760-940 | |
*) Length incl adjustment ring.
Kvs = m3/h at a pressure drop of 1 bar and fully open valve.
→ = Flow direction
With measuring points (max. 120°C)
Male threads according to ISO 228.
Separate connections with NPT threads or ANSI flanges – see "Connections for DN 15-50".
Included: Capillary pipe (Ø6) 1 200 mm, 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).
PN 25
DN | d | L | L1* | H1 | H2 | Kvs | Kg | EAN | Article No | |
5-30 kPa | ||||||||||
15/20 | G1 | 106 | 116 | 41 | 85 | 4 | 1,5 | 3831112507111 | 52 795-020 | |
25/32 | G1 1/4 | 125 | 150 | 51 | 98 | 12 | 2,6 | 3831112507159 | 52 795-025 | |
40/50 | G2 | 162 | 190 | 70 | 110 | 30 | 5,8 | 3831112507197 | 52 795-040 | |
10-60 kPa | ||||||||||
15/20 | G1 | 106 | 116 | 41 | 85 | 4 | 1,5 | 3831112507104 | 52 795-120 | |
25/32 | G1 1/4 | 125 | 150 | 51 | 98 | 12 | 2,6 | 3831112507142 | 52 795-125 | |
40/50 | G2 | 162 | 190 | 70 | 110 | 30 | 5,8 | 3831112507180 | 52 795-140 | |
10-100 kPa | ||||||||||
15/20 | G1 | 106 | 116 | 41 | 85 | 4 | 1,5 | 3831112507098 | 52 795-220 | |
25/32 | G1 1/4 | 125 | 150 | 51 | 98 | 12 | 2,6 | 3831112507135 | 52 795-225 | |
40/50 | G2 | 162 | 190 | 70 | 110 | 30 | 5,8 | 3831112507173 | 52 795-240 | |
60-150 kPa | ||||||||||
15/20 | G1 | 106 | 116 | 41 | 85 | 4 | 1,5 | 3831112507128 | 52 795-320 | |
25/32 | G1 1/4 | 125 | 150 | 51 | 98 | 12 | 2,6 | 3831112507166 | 52 795-325 | |
40/50 | G2 | 162 | 190 | 70 | 110 | 30 | 5,8 | 3831112507203 | 52 795-340 | |
Threads according to ANSI/ASME B1.20.1-1983.Swivelling nut
With female thread NPT
Threads according to ANSI/ASME B1.20.1-1983.
Swivelling nut
d1 | d2 | L1* | EAN | Article No |
G1 1/4 | 1 NPT | 73 | 3831112533394 | 52 751-307 |
G1 1/4 | 1 1/4 NPT | 80 | 3831112533400 | 52 751-308 |
G2 | 1 1/2 NPT | 82 | 3831112533417 | 52 751-309 |
G2 | 2 NPT | 93 | 3831112533424 | 52 751-310 |
Attention! Can be used on the inlet side only.
With ANSI flange
Attention! Can be used on the inlet side only.
According to ASME/ANSI B 16.42 Class 150.
d1 | d2 | D | L1* | EAN | Article No |
G1 | 1/2"-13 UNC | 89 | 10 | 3831112511811 | 52 759-815 |
G1 | 1/2"-13 UNC | 98,5 | 20 | 3831112511835 | 52 759-820 |
G1 1/4 | 1/2"-13 UNC | 108 | 5 | 3831112511866 | 52 759-825 |
G1 1/4 | 1/2"-13 UNC | 117,3 | 15 | 3831112511873 | 52 759-832 |
G2 | 1/2"-13 UNC | 127 | 5 | 3831112511897 | 52 759-840 |
G2 | 5/8"-11 UNC | 152,4 | 20 | 3831112511491 | 52 759-850 |
Attention! Must be used on the outlet side.
With ANSI flange (extended)
Attention! Must be used on the outlet side.
According to ASME/ANSI B 16.42 Class 150.
d1 | d2 | D | L1* | EAN | Article No |
G1 | 1/2"-13 UNC | 89 | 47 | 3831112511828 | 52 759-915 |
G1 | 1/2"-13 UNC | 98,5 | 47 | 3831112511842 | 52 759-920 |
G1 1/4 | 1/2"-13 UNC | 108 | 62 | 3831112511859 | 52 759-925 |
G1 1/4 | 1/2"-13 UNC | 117,3 | 62 | 3831112511880 | 52 759-932 |
G2 | 1/2"-13 UNC | 127 | 72 | 3831112511903 | 52 759-940 |
G2 | 5/8"-11 UNC | 152,4 | 72 | 3831112511507 | 52 759-950 |
*) Fitting length (from the gasket surface to the end of the connection).
Other types of connections (ISO), see international version of DA 516.
Capillary pipe
Ø6 mm
1 pc included in DA 516.
L [m] | Ø | EAN | Article No |
1,2 | 6 mm | 3831112527157 | 52 759-215 |
Capillary pipe connection with shut-off
For connection of Ø6 mm capillary pipe to STAF/STAF-SG.
d | D | For DN | EAN | Article No |
G1/4 | 6 | 20-50 | 7318793999504 | 52 265-209 |
G3/8 | 6 | 65-400 | 7318793999405 | 52 265-208 |
Max 120°C (intermittent 150°C)AMETAL®/EPDM
Measuring point
Max 120°C (intermittent 150°C)
AMETAL®/EPDM
d | L | EAN | Article No |
M14x1 | 44 | 7318792813207 | 52 179-014 |
M14x1 | 103 | 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)
DN | EAN | Article No | |
6 x R1/4 | 15-50 | 3831112527355 | 52 759-201 |
6 x R1/8 | 15-32 | 3831112533868 | 52 759-213 |
6 x R1/8 | 40-50 | 3831112533875 | 52 759-218 |
Suitable when insulation is used.Stainless steel/EPDM/Brass.
Venting extension
Suitable when insulation is used.
Stainless steel/EPDM/Brass.
d | D | L | EAN | Article No |
M6 | 12 | 70 | 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.
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 60 mm
Can be installed without draining of the system.
AMETAL®/Stainless steel/EPDM
L | EAN | Article No |
60 | 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.
D | H | EAN | Article No |
6 | 68 | 7318793848703 | 52 179-206 |
Brass/EPDM
Venting screw
Brass/EPDM
d | EAN | Article No |
M6 | 3831112527980 | 52 759-211 |
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